X-Git-Url: http://de.git.xonotic.org/?p=xonotic%2Fdarkplaces.git;a=blobdiff_plain;f=model_alias.c;h=e3ad40246e8866d83384a3d945ec7874b1312308;hp=1c5ee1464a4594f3d8fdcdb1c2684e5b1bb877bd;hb=a19dce25671ecfa28e4eb3861f8636750bf3ba68;hpb=7c16d23877a1b623d7d7e5ad9f92284896927113

diff --git a/model_alias.c b/model_alias.c
index 1c5ee146..e3ad4024 100644
--- a/model_alias.c
+++ b/model_alias.c
@@ -22,38 +22,481 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #include "image.h"
 #include "r_shadow.h"
 
+cvar_t r_skeletal_debugbone = {0, "r_skeletal_debugbone", "-1", "development cvar for testing skeletal model code"};
+cvar_t r_skeletal_debugbonecomponent = {0, "r_skeletal_debugbonecomponent", "3", "development cvar for testing skeletal model code"};
+cvar_t r_skeletal_debugbonevalue = {0, "r_skeletal_debugbonevalue", "100", "development cvar for testing skeletal model code"};
+cvar_t r_skeletal_debugtranslatex = {0, "r_skeletal_debugtranslatex", "1", "development cvar for testing skeletal model code"};
+cvar_t r_skeletal_debugtranslatey = {0, "r_skeletal_debugtranslatey", "1", "development cvar for testing skeletal model code"};
+cvar_t r_skeletal_debugtranslatez = {0, "r_skeletal_debugtranslatez", "1", "development cvar for testing skeletal model code"};
+
+float mod_md3_sin[320];
+
 void Mod_AliasInit (void)
 {
+	int i;
+	Cvar_RegisterVariable(&r_skeletal_debugbone);
+	Cvar_RegisterVariable(&r_skeletal_debugbonecomponent);
+	Cvar_RegisterVariable(&r_skeletal_debugbonevalue);
+	Cvar_RegisterVariable(&r_skeletal_debugtranslatex);
+	Cvar_RegisterVariable(&r_skeletal_debugtranslatey);
+	Cvar_RegisterVariable(&r_skeletal_debugtranslatez);
+	for (i = 0;i < 320;i++)
+		mod_md3_sin[i] = sin(i * M_PI * 2.0f / 256.0);
+}
+
+void Mod_Alias_GetMesh_Vertices(const model_t *model, const frameblend_t *frameblend, float *vertex3f, float *normal3f, float *svector3f, float *tvector3f)
+{
+#define MAX_BONES 256
+	if (model->surfmesh.data_vertexweightindex4i)
+	{
+		// vertex weighted skeletal
+		int i, k;
+		float boneposerelative[MAX_BONES][12];
+		// interpolate matrices and concatenate them to their parents
+		for (i = 0;i < model->num_bones;i++)
+		{
+			int blends;
+			float *matrix, m[12], bonepose[MAX_BONES][12];
+			for (k = 0;k < 12;k++)
+				m[k] = 0;
+			for (blends = 0;blends < 4 && frameblend[blends].lerp > 0;blends++)
+			{
+				matrix = model->data_poses + (frameblend[blends].frame * model->num_bones + i) * 12;
+				for (k = 0;k < 12;k++)
+					m[k] += matrix[k] * frameblend[blends].lerp;
+			}
+			if (i == r_skeletal_debugbone.integer)
+				m[r_skeletal_debugbonecomponent.integer % 12] += r_skeletal_debugbonevalue.value;
+			m[3] *= r_skeletal_debugtranslatex.value;
+			m[7] *= r_skeletal_debugtranslatey.value;
+			m[11] *= r_skeletal_debugtranslatez.value;
+			if (model->data_bones[i].parent >= 0)
+				R_ConcatTransforms(bonepose[model->data_bones[i].parent], m, bonepose[i]);
+			else
+				for (k = 0;k < 12;k++)
+					bonepose[i][k] = m[k];
+			// create a relative deformation matrix to describe displacement
+			// from the base mesh, which is used by the actual weighting
+			R_ConcatTransforms(bonepose[i], model->data_baseboneposeinverse + i * 12, boneposerelative[i]);
+		}
+		// blend the vertex bone weights
+		// special case for the extremely common wf[0] == 1 because it saves 3 multiplies per array when compared to the other case (w[0] is always 1 if only one bone controls this vertex, artists only use multiple bones for certain special cases)
+		// special case for the first bone because it avoids the need to memset the arrays before filling
+		{
+			const float *v = model->surfmesh.data_vertex3f;
+			const int *wi = model->surfmesh.data_vertexweightindex4i;
+			const float *wf = model->surfmesh.data_vertexweightinfluence4f;
+			for (i = 0;i < model->surfmesh.num_vertices;i++, v += 3, wi += 4, wf += 4, vertex3f += 3)
+			{
+				if (wf[0] == 1)
+				{
+					const float *m = boneposerelative[wi[0]];
+					vertex3f[0] = (v[0] * m[0] + v[1] * m[1] + v[2] * m[ 2] + m[ 3]);
+					vertex3f[1] = (v[0] * m[4] + v[1] * m[5] + v[2] * m[ 6] + m[ 7]);
+					vertex3f[2] = (v[0] * m[8] + v[1] * m[9] + v[2] * m[10] + m[11]);
+				}
+				else
+				{
+					const float *m = boneposerelative[wi[0]];
+					float f = wf[0];
+					vertex3f[0] = f * (v[0] * m[0] + v[1] * m[1] + v[2] * m[ 2] + m[ 3]);
+					vertex3f[1] = f * (v[0] * m[4] + v[1] * m[5] + v[2] * m[ 6] + m[ 7]);
+					vertex3f[2] = f * (v[0] * m[8] + v[1] * m[9] + v[2] * m[10] + m[11]);
+					for (k = 1;k < 4 && wf[k];k++)
+					{
+						const float *m = boneposerelative[wi[k]];
+						float f = wf[k];
+						vertex3f[0] += f * (v[0] * m[0] + v[1] * m[1] + v[2] * m[ 2] + m[ 3]);
+						vertex3f[1] += f * (v[0] * m[4] + v[1] * m[5] + v[2] * m[ 6] + m[ 7]);
+						vertex3f[2] += f * (v[0] * m[8] + v[1] * m[9] + v[2] * m[10] + m[11]);
+					}
+				}
+			}
+		}
+		if (normal3f)
+		{
+			const float *n = model->surfmesh.data_normal3f;
+			const int *wi = model->surfmesh.data_vertexweightindex4i;
+			const float *wf = model->surfmesh.data_vertexweightinfluence4f;
+			for (i = 0;i < model->surfmesh.num_vertices;i++, n += 3, wi += 4, wf += 4, normal3f += 3)
+			{
+				if (wf[0] == 1)
+				{
+					const float *m = boneposerelative[wi[0]];
+					normal3f[0] = (n[0] * m[0] + n[1] * m[1] + n[2] * m[ 2]);
+					normal3f[1] = (n[0] * m[4] + n[1] * m[5] + n[2] * m[ 6]);
+					normal3f[2] = (n[0] * m[8] + n[1] * m[9] + n[2] * m[10]);
+				}
+				else
+				{
+					const float *m = boneposerelative[wi[0]];
+					float f = wf[0];
+					normal3f[0] = f * (n[0] * m[0] + n[1] * m[1] + n[2] * m[ 2]);
+					normal3f[1] = f * (n[0] * m[4] + n[1] * m[5] + n[2] * m[ 6]);
+					normal3f[2] = f * (n[0] * m[8] + n[1] * m[9] + n[2] * m[10]);
+					for (k = 1;k < 4 && wf[k];k++)
+					{
+						const float *m = boneposerelative[wi[k]];
+						float f = wf[k];
+						normal3f[0] += f * (n[0] * m[0] + n[1] * m[1] + n[2] * m[ 2]);
+						normal3f[1] += f * (n[0] * m[4] + n[1] * m[5] + n[2] * m[ 6]);
+						normal3f[2] += f * (n[0] * m[8] + n[1] * m[9] + n[2] * m[10]);
+					}
+				}
+			}
+		}
+		if (svector3f)
+		{
+			const float *sv = model->surfmesh.data_svector3f;
+			const int *wi = model->surfmesh.data_vertexweightindex4i;
+			const float *wf = model->surfmesh.data_vertexweightinfluence4f;
+			for (i = 0;i < model->surfmesh.num_vertices;i++, sv += 3, wi += 4, wf += 4, svector3f += 3)
+			{
+				if (wf[0] == 1)
+				{
+					const float *m = boneposerelative[wi[0]];
+					svector3f[0] = (sv[0] * m[0] + sv[1] * m[1] + sv[2] * m[ 2]);
+					svector3f[1] = (sv[0] * m[4] + sv[1] * m[5] + sv[2] * m[ 6]);
+					svector3f[2] = (sv[0] * m[8] + sv[1] * m[9] + sv[2] * m[10]);
+				}
+				else
+				{
+					const float *m = boneposerelative[wi[0]];
+					float f = wf[0];
+					svector3f[0] = f * (sv[0] * m[0] + sv[1] * m[1] + sv[2] * m[ 2]);
+					svector3f[1] = f * (sv[0] * m[4] + sv[1] * m[5] + sv[2] * m[ 6]);
+					svector3f[2] = f * (sv[0] * m[8] + sv[1] * m[9] + sv[2] * m[10]);
+					for (k = 1;k < 4 && wf[k];k++)
+					{
+						const float *m = boneposerelative[wi[k]];
+						float f = wf[k];
+						svector3f[0] += f * (sv[0] * m[0] + sv[1] * m[1] + sv[2] * m[ 2]);
+						svector3f[1] += f * (sv[0] * m[4] + sv[1] * m[5] + sv[2] * m[ 6]);
+						svector3f[2] += f * (sv[0] * m[8] + sv[1] * m[9] + sv[2] * m[10]);
+					}
+				}
+			}
+		}
+		if (tvector3f)
+		{
+			const float *tv = model->surfmesh.data_tvector3f;
+			const int *wi = model->surfmesh.data_vertexweightindex4i;
+			const float *wf = model->surfmesh.data_vertexweightinfluence4f;
+			for (i = 0;i < model->surfmesh.num_vertices;i++, tv += 3, wi += 4, wf += 4, tvector3f += 3)
+			{
+				if (wf[0] == 1)
+				{
+					const float *m = boneposerelative[wi[0]];
+					tvector3f[0] = (tv[0] * m[0] + tv[1] * m[1] + tv[2] * m[ 2]);
+					tvector3f[1] = (tv[0] * m[4] + tv[1] * m[5] + tv[2] * m[ 6]);
+					tvector3f[2] = (tv[0] * m[8] + tv[1] * m[9] + tv[2] * m[10]);
+				}
+				else
+				{
+					const float *m = boneposerelative[wi[0]];
+					float f = wf[0];
+					tvector3f[0] = f * (tv[0] * m[0] + tv[1] * m[1] + tv[2] * m[ 2]);
+					tvector3f[1] = f * (tv[0] * m[4] + tv[1] * m[5] + tv[2] * m[ 6]);
+					tvector3f[2] = f * (tv[0] * m[8] + tv[1] * m[9] + tv[2] * m[10]);
+					for (k = 1;k < 4 && wf[k];k++)
+					{
+						const float *m = boneposerelative[wi[k]];
+						float f = wf[k];
+						tvector3f[0] += f * (tv[0] * m[0] + tv[1] * m[1] + tv[2] * m[ 2]);
+						tvector3f[1] += f * (tv[0] * m[4] + tv[1] * m[5] + tv[2] * m[ 6]);
+						tvector3f[2] += f * (tv[0] * m[8] + tv[1] * m[9] + tv[2] * m[10]);
+					}
+				}
+			}
+		}
+	}
+	else if (model->surfmesh.data_morphmd3vertex)
+	{
+		// vertex morph
+		int i, numblends, blendnum;
+		int numverts = model->surfmesh.num_vertices;
+		numblends = 0;
+		for (blendnum = 0;blendnum < 4;blendnum++)
+		{
+			//VectorMA(translate, model->surfmesh.num_morphmdlframetranslate, frameblend[blendnum].lerp, translate);
+			if (frameblend[blendnum].lerp > 0)
+				numblends = blendnum + 1;
+		}
+		// special case for the first blend because it avoids some adds and the need to memset the arrays first
+		for (blendnum = 0;blendnum < numblends;blendnum++)
+		{
+			const md3vertex_t *verts = model->surfmesh.data_morphmd3vertex + numverts * frameblend[blendnum].frame;
+			float scale = frameblend[blendnum].lerp * (1.0f / 64.0f);
+			if (blendnum == 0)
+			{
+				for (i = 0;i < numverts;i++)
+				{
+					vertex3f[i * 3 + 0] = verts[i].origin[0] * scale;
+					vertex3f[i * 3 + 1] = verts[i].origin[1] * scale;
+					vertex3f[i * 3 + 2] = verts[i].origin[2] * scale;
+				}
+			}
+			else
+			{
+				for (i = 0;i < numverts;i++)
+				{
+					vertex3f[i * 3 + 0] += verts[i].origin[0] * scale;
+					vertex3f[i * 3 + 1] += verts[i].origin[1] * scale;
+					vertex3f[i * 3 + 2] += verts[i].origin[2] * scale;
+				}
+			}
+			// the yaw and pitch stored in md3 models are 8bit quantized angles
+			// (0-255), and as such a lookup table is very well suited to
+			// decoding them, and since cosine is equivilant to sine with an
+			// extra 45 degree rotation, this uses one lookup table for both
+			// sine and cosine with a +64 bias to get cosine.
+			if (normal3f)
+			{
+				float lerp = frameblend[blendnum].lerp;
+				if (blendnum == 0)
+				{
+					for (i = 0;i < numverts;i++)
+					{
+						normal3f[i * 3 + 0] = mod_md3_sin[verts[i].yaw + 64] * mod_md3_sin[verts[i].pitch     ] * lerp;
+						normal3f[i * 3 + 1] = mod_md3_sin[verts[i].yaw     ] * mod_md3_sin[verts[i].pitch     ] * lerp;
+						normal3f[i * 3 + 2] =                                  mod_md3_sin[verts[i].pitch + 64] * lerp;
+					}
+				}
+				else
+				{
+					for (i = 0;i < numverts;i++)
+					{
+						normal3f[i * 3 + 0] += mod_md3_sin[verts[i].yaw + 64] * mod_md3_sin[verts[i].pitch     ] * lerp;
+						normal3f[i * 3 + 1] += mod_md3_sin[verts[i].yaw     ] * mod_md3_sin[verts[i].pitch     ] * lerp;
+						normal3f[i * 3 + 2] +=                                  mod_md3_sin[verts[i].pitch + 64] * lerp;
+					}
+				}
+			}
+		}
+		// md3 model vertices do not include tangents, so we have to generate them (extremely slow)
+		if (normal3f)
+			if (svector3f)
+				Mod_BuildTextureVectorsFromNormals(0, model->surfmesh.num_vertices, model->surfmesh.num_triangles, vertex3f, model->surfmesh.data_texcoordtexture2f, normal3f, model->surfmesh.data_element3i, svector3f, tvector3f, r_smoothnormals_areaweighting.integer);
+	}
+	else if (model->surfmesh.data_morphmdlvertex)
+	{
+		// vertex morph
+		int i, numblends, blendnum;
+		int numverts = model->surfmesh.num_vertices;
+		float translate[3];
+		VectorClear(translate);
+		numblends = 0;
+		// blend the frame translates to avoid redundantly doing so on each vertex
+		// (a bit of a brain twister but it works)
+		for (blendnum = 0;blendnum < 4;blendnum++)
+		{
+			if (model->surfmesh.data_morphmd2framesize6f)
+				VectorMA(translate, frameblend[blendnum].lerp, model->surfmesh.data_morphmd2framesize6f + frameblend[blendnum].frame * 6 + 3, translate);
+			else
+				VectorMA(translate, frameblend[blendnum].lerp, model->surfmesh.num_morphmdlframetranslate, translate);
+			if (frameblend[blendnum].lerp > 0)
+				numblends = blendnum + 1;
+		}
+		// special case for the first blend because it avoids some adds and the need to memset the arrays first
+		for (blendnum = 0;blendnum < numblends;blendnum++)
+		{
+			const trivertx_t *verts = model->surfmesh.data_morphmdlvertex + numverts * frameblend[blendnum].frame;
+			float scale[3];
+			if (model->surfmesh.data_morphmd2framesize6f)
+				VectorScale(model->surfmesh.data_morphmd2framesize6f + frameblend[blendnum].frame * 6, frameblend[blendnum].lerp, scale);
+			else
+				VectorScale(model->surfmesh.num_morphmdlframescale, frameblend[blendnum].lerp, scale);
+			if (blendnum == 0)
+			{
+				for (i = 0;i < numverts;i++)
+				{
+					vertex3f[i * 3 + 0] = translate[0] + verts[i].v[0] * scale[0];
+					vertex3f[i * 3 + 1] = translate[1] + verts[i].v[1] * scale[1];
+					vertex3f[i * 3 + 2] = translate[2] + verts[i].v[2] * scale[2];
+				}
+			}
+			else
+			{
+				for (i = 0;i < numverts;i++)
+				{
+					vertex3f[i * 3 + 0] += verts[i].v[0] * scale[0];
+					vertex3f[i * 3 + 1] += verts[i].v[1] * scale[1];
+					vertex3f[i * 3 + 2] += verts[i].v[2] * scale[2];
+				}
+			}
+			// the vertex normals in mdl models are an index into a table of
+			// 162 unique values, this very crude quantization reduces the
+			// vertex normal to only one byte, which saves a lot of space but
+			// also makes lighting pretty coarse
+			if (normal3f)
+			{
+				float lerp = frameblend[blendnum].lerp;
+				if (blendnum == 0)
+				{
+					for (i = 0;i < numverts;i++)
+					{
+						const float *vn = m_bytenormals[verts[i].lightnormalindex];
+						VectorScale(vn, lerp, normal3f + i*3);
+					}
+				}
+				else
+				{
+					for (i = 0;i < numverts;i++)
+					{
+						const float *vn = m_bytenormals[verts[i].lightnormalindex];
+						VectorMA(normal3f + i*3, lerp, vn, normal3f + i*3);
+					}
+				}
+			}
+		}
+		if (normal3f)
+			if (svector3f)
+				Mod_BuildTextureVectorsFromNormals(0, model->surfmesh.num_vertices, model->surfmesh.num_triangles, vertex3f, model->surfmesh.data_texcoordtexture2f, normal3f, model->surfmesh.data_element3i, svector3f, tvector3f, r_smoothnormals_areaweighting.integer);
+	}
+	else
+		Host_Error("model %s has no skeletal or vertex morph animation data", model->name);
+}
+
+int Mod_Alias_GetTagMatrix(const model_t *model, int poseframe, int tagindex, matrix4x4_t *outmatrix)
+{
+	const float *boneframe;
+	float tempbonematrix[12], bonematrix[12];
+	*outmatrix = identitymatrix;
+	if (model->num_bones)
+	{
+		if (tagindex < 0 || tagindex >= model->num_bones)
+			return 4;
+		if (poseframe >= model->num_poses)
+			return 6;
+		boneframe = model->data_poses + poseframe * model->num_bones * 12;
+		memcpy(bonematrix, boneframe + tagindex * 12, sizeof(float[12]));
+		while (model->data_bones[tagindex].parent >= 0)
+		{
+			memcpy(tempbonematrix, bonematrix, sizeof(float[12]));
+			R_ConcatTransforms(boneframe + model->data_bones[tagindex].parent * 12, tempbonematrix, bonematrix);
+			tagindex = model->data_bones[tagindex].parent;
+		}
+		Matrix4x4_FromArray12FloatD3D(outmatrix, bonematrix);
+	}
+	else if (model->num_tags)
+	{
+		if (tagindex < 0 || tagindex >= model->num_tags)
+			return 4;
+		if (poseframe >= model->num_tagframes)
+			return 6;
+		Matrix4x4_FromArray12FloatGL(outmatrix, model->data_tags[poseframe * model->num_tags + tagindex].matrixgl);
+	}
+	return 0;
+}
+
+int Mod_Alias_GetTagIndexForName(const model_t *model, unsigned int skin, const char *tagname)
+{
+	int i;
+	if (model->data_overridetagnamesforskin && skin < (unsigned int)model->numskins && model->data_overridetagnamesforskin[(unsigned int)skin].num_overridetagnames)
+		for (i = 0;i < model->data_overridetagnamesforskin[skin].num_overridetagnames;i++)
+			if (!strcasecmp(tagname, model->data_overridetagnamesforskin[skin].data_overridetagnames[i].name))
+				return i + 1;
+	if (model->num_bones)
+		for (i = 0;i < model->num_bones;i++)
+			if (!strcasecmp(tagname, model->data_bones[i].name))
+				return i + 1;
+	if (model->num_tags)
+		for (i = 0;i < model->num_tags;i++)
+			if (!strcasecmp(tagname, model->data_tags[i].name))
+				return i + 1;
+	return 0;
+}
+
+static void Mod_BuildBaseBonePoses(void)
+{
+	int i, k;
+	double scale;
+	float *in12f = loadmodel->data_poses;
+	float *out12f = loadmodel->data_basebonepose;
+	float *outinv12f = loadmodel->data_baseboneposeinverse;
+	for (i = 0;i < loadmodel->num_bones;i++, in12f += 12, out12f += 12, outinv12f += 12)
+	{
+		if (loadmodel->data_bones[i].parent >= 0)
+			R_ConcatTransforms(loadmodel->data_basebonepose + 12 * loadmodel->data_bones[i].parent, in12f, out12f);
+		else
+			for (k = 0;k < 12;k++)
+				out12f[k] = in12f[k];
+
+		// invert The Matrix
+
+		// we only support uniform scaling, so assume the first row is enough
+		// (note the lack of sqrt here, because we're trying to undo the scaling,
+		// this means multiplying by the inverse scale twice - squaring it, which
+		// makes the sqrt a waste of time)
+		scale = 1.0 / (out12f[ 0] * out12f[ 0] + out12f[ 1] * out12f[ 1] + out12f[ 2] * out12f[ 2]);
+
+		// invert the rotation by transposing and multiplying by the squared
+		// recipricol of the input matrix scale as described above
+		outinv12f[ 0] = (float)(out12f[ 0] * scale);
+		outinv12f[ 1] = (float)(out12f[ 4] * scale);
+		outinv12f[ 2] = (float)(out12f[ 8] * scale);
+		outinv12f[ 4] = (float)(out12f[ 1] * scale);
+		outinv12f[ 5] = (float)(out12f[ 5] * scale);
+		outinv12f[ 6] = (float)(out12f[ 9] * scale);
+		outinv12f[ 8] = (float)(out12f[ 2] * scale);
+		outinv12f[ 9] = (float)(out12f[ 6] * scale);
+		outinv12f[10] = (float)(out12f[10] * scale);
+
+		// invert the translate
+		outinv12f[ 3] = -(out12f[ 3] * outinv12f[ 0] + out12f[ 7] * outinv12f[ 1] + out12f[11] * outinv12f[ 2]);
+		outinv12f[ 7] = -(out12f[ 3] * outinv12f[ 4] + out12f[ 7] * outinv12f[ 5] + out12f[11] * outinv12f[ 6]);
+		outinv12f[11] = -(out12f[ 3] * outinv12f[ 8] + out12f[ 7] * outinv12f[ 9] + out12f[11] * outinv12f[10]);
+	}
 }
 
-static void Mod_CalcAliasModelBBoxes (void)
+static void Mod_Alias_CalculateBoundingBox(void)
 {
-	int vnum, meshnum;
+	int i, j;
+	int vnum;
+	qboolean firstvertex = true;
 	float dist, yawradius, radius;
-	aliasmesh_t *mesh;
 	float *v;
+	float *vertex3f;
+	frameblend_t frameblend[4];
+	memset(frameblend, 0, sizeof(frameblend));
+	frameblend[0].lerp = 1;
+	vertex3f = Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_vertices * sizeof(float[3]));
 	VectorClear(loadmodel->normalmins);
 	VectorClear(loadmodel->normalmaxs);
 	yawradius = 0;
 	radius = 0;
-	for (meshnum = 0, mesh = loadmodel->alias.aliasdata_meshes;meshnum < loadmodel->alias.aliasnum_meshes;meshnum++, mesh++)
+	for (i = 0;i < loadmodel->numframes;i++)
 	{
-		for (vnum = 0, v = mesh->data_aliasvertex3f;vnum < mesh->num_vertices * mesh->num_frames;vnum++, v += 3)
+		for (j = 0, frameblend[0].frame = loadmodel->animscenes[i].firstframe;j < loadmodel->animscenes[i].framecount;j++, frameblend[0].frame++)
 		{
-			if (loadmodel->normalmins[0] > v[0]) loadmodel->normalmins[0] = v[0];
-			if (loadmodel->normalmins[1] > v[1]) loadmodel->normalmins[1] = v[1];
-			if (loadmodel->normalmins[2] > v[2]) loadmodel->normalmins[2] = v[2];
-			if (loadmodel->normalmaxs[0] < v[0]) loadmodel->normalmaxs[0] = v[0];
-			if (loadmodel->normalmaxs[1] < v[1]) loadmodel->normalmaxs[1] = v[1];
-			if (loadmodel->normalmaxs[2] < v[2]) loadmodel->normalmaxs[2] = v[2];
-			dist = v[0] * v[0] + v[1] * v[1];
-			if (yawradius < dist)
-				yawradius = dist;
-			dist += v[2] * v[2];
-			if (radius < dist)
-				radius = dist;
+			Mod_Alias_GetMesh_Vertices(loadmodel, frameblend, vertex3f, NULL, NULL, NULL);
+			for (vnum = 0, v = vertex3f;vnum < loadmodel->surfmesh.num_vertices;vnum++, v += 3)
+			{
+				if (firstvertex)
+				{
+					firstvertex = false;
+					VectorCopy(v, loadmodel->normalmins);
+					VectorCopy(v, loadmodel->normalmaxs);
+				}
+				else
+				{
+					if (loadmodel->normalmins[0] > v[0]) loadmodel->normalmins[0] = v[0];
+					if (loadmodel->normalmins[1] > v[1]) loadmodel->normalmins[1] = v[1];
+					if (loadmodel->normalmins[2] > v[2]) loadmodel->normalmins[2] = v[2];
+					if (loadmodel->normalmaxs[0] < v[0]) loadmodel->normalmaxs[0] = v[0];
+					if (loadmodel->normalmaxs[1] < v[1]) loadmodel->normalmaxs[1] = v[1];
+					if (loadmodel->normalmaxs[2] < v[2]) loadmodel->normalmaxs[2] = v[2];
+				}
+				dist = v[0] * v[0] + v[1] * v[1];
+				if (yawradius < dist)
+					yawradius = dist;
+				dist += v[2] * v[2];
+				if (radius < dist)
+					radius = dist;
+			}
 		}
 	}
+	Mem_Free(vertex3f);
 	radius = sqrt(radius);
 	yawradius = sqrt(yawradius);
 	loadmodel->yawmins[0] = loadmodel->yawmins[1] = -yawradius;
@@ -66,27 +509,104 @@ static void Mod_CalcAliasModelBBoxes (void)
 	loadmodel->radius2 = radius * radius;
 }
 
-static void Mod_ConvertAliasVerts (int inverts, vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int *vertremap)
+static void Mod_Alias_Mesh_CompileFrameZero(void)
+{
+	frameblend_t frameblend[4] = {{0, 1}, {0, 0}, {0, 0}, {0, 0}};
+	loadmodel->surfmesh.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_vertices * sizeof(float[3][4]));
+	loadmodel->surfmesh.data_svector3f = loadmodel->surfmesh.data_vertex3f + loadmodel->surfmesh.num_vertices * 3;
+	loadmodel->surfmesh.data_tvector3f = loadmodel->surfmesh.data_vertex3f + loadmodel->surfmesh.num_vertices * 6;
+	loadmodel->surfmesh.data_normal3f = loadmodel->surfmesh.data_vertex3f + loadmodel->surfmesh.num_vertices * 9;
+	Mod_Alias_GetMesh_Vertices(loadmodel, frameblend, loadmodel->surfmesh.data_vertex3f, NULL, NULL, NULL);
+	Mod_BuildNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_normal3f, true);
+	Mod_BuildTextureVectorsFromNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, true);
+}
+
+static void Mod_MDLMD2MD3_TraceBox(model_t *model, int frame, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
+{
+	int i;
+	float segmentmins[3], segmentmaxs[3];
+	frameblend_t frameblend[4];
+	msurface_t *surface;
+	static int maxvertices = 0;
+	static float *vertex3f = NULL;
+	memset(trace, 0, sizeof(*trace));
+	trace->fraction = 1;
+	trace->realfraction = 1;
+	trace->hitsupercontentsmask = hitsupercontentsmask;
+	memset(frameblend, 0, sizeof(frameblend));
+	frameblend[0].frame = frame;
+	frameblend[0].lerp = 1;
+	if (maxvertices < model->surfmesh.num_vertices)
+	{
+		if (vertex3f)
+			Z_Free(vertex3f);
+		maxvertices = (model->surfmesh.num_vertices + 255) & ~255;
+		vertex3f = (float *)Z_Malloc(maxvertices * sizeof(float[3]));
+	}
+	if (VectorLength2(boxmins) + VectorLength2(boxmaxs) == 0)
+	{
+		// line trace
+		segmentmins[0] = min(start[0], end[0]) - 1;
+		segmentmins[1] = min(start[1], end[1]) - 1;
+		segmentmins[2] = min(start[2], end[2]) - 1;
+		segmentmaxs[0] = max(start[0], end[0]) + 1;
+		segmentmaxs[1] = max(start[1], end[1]) + 1;
+		segmentmaxs[2] = max(start[2], end[2]) + 1;
+		for (i = 0, surface = model->data_surfaces;i < model->num_surfaces;i++, surface++)
+		{
+			Mod_Alias_GetMesh_Vertices(model, frameblend, vertex3f, NULL, NULL, NULL);
+			Collision_TraceLineTriangleMeshFloat(trace, start, end, model->surfmesh.num_triangles, model->surfmesh.data_element3i, vertex3f, SUPERCONTENTS_SOLID, 0, surface->texture, segmentmins, segmentmaxs);
+		}
+	}
+	else
+	{
+		// box trace, performed as brush trace
+		colbrushf_t *thisbrush_start, *thisbrush_end;
+		vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
+		segmentmins[0] = min(start[0], end[0]) + boxmins[0] - 1;
+		segmentmins[1] = min(start[1], end[1]) + boxmins[1] - 1;
+		segmentmins[2] = min(start[2], end[2]) + boxmins[2] - 1;
+		segmentmaxs[0] = max(start[0], end[0]) + boxmaxs[0] + 1;
+		segmentmaxs[1] = max(start[1], end[1]) + boxmaxs[1] + 1;
+		segmentmaxs[2] = max(start[2], end[2]) + boxmaxs[2] + 1;
+		VectorAdd(start, boxmins, boxstartmins);
+		VectorAdd(start, boxmaxs, boxstartmaxs);
+		VectorAdd(end, boxmins, boxendmins);
+		VectorAdd(end, boxmaxs, boxendmaxs);
+		thisbrush_start = Collision_BrushForBox(&identitymatrix, boxstartmins, boxstartmaxs, 0, 0, NULL);
+		thisbrush_end = Collision_BrushForBox(&identitymatrix, boxendmins, boxendmaxs, 0, 0, NULL);
+		for (i = 0, surface = model->data_surfaces;i < model->num_surfaces;i++, surface++)
+		{
+			if (maxvertices < model->surfmesh.num_vertices)
+			{
+				if (vertex3f)
+					Z_Free(vertex3f);
+				maxvertices = (model->surfmesh.num_vertices + 255) & ~255;
+				vertex3f = (float *)Z_Malloc(maxvertices * sizeof(float[3]));
+			}
+			Mod_Alias_GetMesh_Vertices(model, frameblend, vertex3f, NULL, NULL, NULL);
+			Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, model->surfmesh.num_triangles, model->surfmesh.data_element3i, vertex3f, SUPERCONTENTS_SOLID, 0, surface->texture, segmentmins, segmentmaxs);
+		}
+	}
+}
+
+static void Mod_ConvertAliasVerts (int inverts, trivertx_t *v, trivertx_t *out, int *vertremap)
 {
 	int i, j;
-	vec3_t temp;
 	for (i = 0;i < inverts;i++)
 	{
 		if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
 			continue;
-		temp[0] = v[i].v[0] * scale[0] + translate[0];
-		temp[1] = v[i].v[1] * scale[1] + translate[1];
-		temp[2] = v[i].v[2] * scale[2] + translate[2];
 		j = vertremap[i]; // not onseam
 		if (j >= 0)
-			VectorCopy(temp, out3f + j * 3);
+			out[j] = v[i];
 		j = vertremap[i+inverts]; // onseam
 		if (j >= 0)
-			VectorCopy(temp, out3f + j * 3);
+			out[j] = v[i];
 	}
 }
 
-static void Mod_MDL_LoadFrames (qbyte* datapointer, int inverts, vec3_t scale, vec3_t translate, int *vertremap)
+static void Mod_MDL_LoadFrames (unsigned char* datapointer, int inverts, int *vertremap)
 {
 	int i, f, pose, groupframes;
 	float interval;
@@ -120,13 +640,16 @@ static void Mod_MDL_LoadFrames (qbyte* datapointer, int inverts, vec3_t scale, v
 
 			interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 			if (interval < 0.01f)
-				Host_Error("Mod_MDL_LoadFrames: invalid interval");
+			{
+				Con_Printf("%s has an invalid interval %f, changing to 0.1\n", loadmodel->name, interval);
+				interval = 0.1f;
+			}
 		}
 
 		// get scene name from first frame
 		pinframe = (daliasframe_t *)datapointer;
 
-		strcpy(scene->name, pinframe->name);
+		strlcpy(scene->name, pinframe->name, sizeof(scene->name));
 		scene->firstframe = pose;
 		scene->framecount = groupframes;
 		scene->framerate = 1.0f / interval;
@@ -138,94 +661,43 @@ static void Mod_MDL_LoadFrames (qbyte* datapointer, int inverts, vec3_t scale, v
 		{
 			pinframe = (daliasframe_t *)datapointer;
 			datapointer += sizeof(daliasframe_t);
-			Mod_ConvertAliasVerts(inverts, scale, translate, (trivertx_t *)datapointer, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, vertremap);
-			Mod_BuildTextureVectorsAndNormals(loadmodel->alias.aliasdata_meshes->num_vertices, loadmodel->alias.aliasdata_meshes->num_triangles, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_texcoord2f, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->data_aliassvector3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliastvector3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliasnormal3f + pose * loadmodel->alias.aliasdata_meshes->num_vertices * 3);
+			Mod_ConvertAliasVerts(inverts, (trivertx_t *)datapointer, loadmodel->surfmesh.data_morphmdlvertex + pose * loadmodel->surfmesh.num_vertices, vertremap);
 			datapointer += sizeof(trivertx_t) * inverts;
 			pose++;
 		}
 	}
 }
 
-static skinframe_t missingskinframe;
-aliaslayer_t mod_alias_layersbuffer[16]; // 7 currently used
-void Mod_BuildAliasSkinFromSkinFrame(aliasskin_t *skin, skinframe_t *skinframe)
+static void Mod_BuildAliasSkinFromSkinFrame(texture_t *texture, skinframe_t *skinframe)
 {
-	aliaslayer_t *layer;
-
-	// hack
-	if (skinframe == NULL)
-	{
-		skinframe = &missingskinframe;
-		memset(skinframe, 0, sizeof(*skinframe));
-		skinframe->base = r_notexture;
-	}
-
-	memset(&mod_alias_layersbuffer, 0, sizeof(mod_alias_layersbuffer));
-	layer = mod_alias_layersbuffer;
-	layer->flags = ALIASLAYER_SPECULAR;
-	layer->texture = skinframe->gloss;
-	layer->nmap = skinframe->nmap;
-	layer++;
-	if (skinframe->merged != NULL)
-	{
-		layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_COLORMAPPED;
-		layer->texture = skinframe->merged;
-		layer->nmap = skinframe->nmap;
-		layer++;
-	}
-	if (skinframe->base != NULL)
-	{
-		layer->flags = ALIASLAYER_DIFFUSE;
-		if (skinframe->merged != NULL)
-			layer->flags |= ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED;
-		layer->texture = skinframe->base;
-		layer->nmap = skinframe->nmap;
-		layer++;
-	}
-	if (skinframe->pants != NULL)
-	{
-		layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_COLORMAP_PANTS;
-		layer->texture = skinframe->pants;
-		layer->nmap = skinframe->nmap;
-		layer++;
-	}
-	if (skinframe->shirt != NULL)
-	{
-		layer->flags = ALIASLAYER_DIFFUSE | ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED | ALIASLAYER_COLORMAP_SHIRT;
-		layer->texture = skinframe->shirt;
-		layer->nmap = skinframe->nmap;
-		layer++;
-	}
-
-	if (skinframe->glow != NULL)
+	texture->currentframe = texture;
+	texture->numskinframes = 1;
+	texture->skinframerate = 1;
+	texture->currentskinframe = texture->skinframes + 0;
+	if (skinframe)
+		texture->skinframes[0] = *skinframe;
+	else
 	{
-		layer->flags = 0;
-		layer->texture = skinframe->glow;
-		layer++;
+		// hack
+		memset(texture->skinframes, 0, sizeof(texture->skinframes));
+		texture->skinframes[0].base = r_texture_notexture;
 	}
 
-	layer->flags = ALIASLAYER_FOG | ALIASLAYER_FORCEDRAW_IF_FIRSTPASS;
-	layer->texture = skinframe->fog;
-	layer++;
-
-	skin->flags = 0;
-	// fog texture only exists if some pixels are transparent...
-	if (skinframe->fog != NULL)
-		skin->flags |= ALIASSKIN_TRANSPARENT;
-
-	skin->num_layers = layer - mod_alias_layersbuffer;
-	skin->data_layers = Mem_Alloc(loadmodel->mempool, skin->num_layers * sizeof(aliaslayer_t));
-	memcpy(skin->data_layers, mod_alias_layersbuffer, skin->num_layers * sizeof(aliaslayer_t));
+	texture->basematerialflags = MATERIALFLAG_WALL;
+	if (texture->currentskinframe->fog)
+		texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
+	texture->currentmaterialflags = texture->basematerialflags;
 }
 
-void Mod_BuildAliasSkinsFromSkinFiles(aliasskin_t *skin, skinfile_t *skinfile, char *meshname, char *shadername)
+static void Mod_BuildAliasSkinsFromSkinFiles(texture_t *skin, skinfile_t *skinfile, char *meshname, char *shadername)
 {
 	int i;
 	skinfileitem_t *skinfileitem;
 	skinframe_t tempskinframe;
 	if (skinfile)
 	{
-		for (i = 0;skinfile;skinfile = skinfile->next, i++, skin++)
+		// the skin += loadmodel->num_surfaces part of this is because data_textures on alias models is arranged as [numskins][numsurfaces]
+		for (i = 0;skinfile;skinfile = skinfile->next, i++, skin += loadmodel->num_surfaces)
 		{
 			memset(skin, 0, sizeof(*skin));
 			for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = skinfileitem->next)
@@ -234,16 +706,18 @@ void Mod_BuildAliasSkinsFromSkinFiles(aliasskin_t *skin, skinfile_t *skinfile, c
 				if (!strcmp(skinfileitem->name, meshname) && strcmp(skinfileitem->replacement, "common/nodraw") && strcmp(skinfileitem->replacement, "textures/common/nodraw"))
 				{
 					memset(&tempskinframe, 0, sizeof(tempskinframe));
-					if (Mod_LoadSkinFrame(&tempskinframe, skinfileitem->replacement, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE, true, false, true))
+					if (Mod_LoadSkinFrame(&tempskinframe, skinfileitem->replacement, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, true, true))
 						Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 					else
 					{
-						Con_Printf("mesh \"%s\": failed to load skin #%i \"%s\", falling back to mesh's internal shader name \"%s\"\n", meshname, i, skinfileitem->replacement, shadername);
-						if (Mod_LoadSkinFrame(&tempskinframe, shadername, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE, true, false, true))
+						if (cls.state != ca_dedicated)
+							Con_Printf("mesh \"%s\": failed to load skin #%i \"%s\", falling back to mesh's internal shader name \"%s\"\n", meshname, i, skinfileitem->replacement, shadername);
+						if (Mod_LoadSkinFrame(&tempskinframe, shadername, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, true, true))
 							Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 						else
 						{
-							Con_Printf("failed to load skin \"%s\"\n", shadername);
+							if (cls.state != ca_dedicated)
+								Con_Printf("failed to load skin \"%s\"\n", shadername);
 							Mod_BuildAliasSkinFromSkinFrame(skin, NULL);
 						}
 					}
@@ -254,26 +728,25 @@ void Mod_BuildAliasSkinsFromSkinFiles(aliasskin_t *skin, skinfile_t *skinfile, c
 	else
 	{
 		memset(&tempskinframe, 0, sizeof(tempskinframe));
-		if (Mod_LoadSkinFrame(&tempskinframe, shadername, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE, true, false, true))
+		if (Mod_LoadSkinFrame(&tempskinframe, shadername, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, true, true))
 			Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 		else
 		{
-			Con_Printf("failed to load mesh \"%s\" shader \"%s\"\n", meshname, shadername);
+			if (cls.state != ca_dedicated)
+				Con_Printf("Can't find texture \"%s\" for mesh \"%s\", using grey checkerboard\n", shadername, meshname);
 			Mod_BuildAliasSkinFromSkinFrame(skin, NULL);
 		}
 	}
 }
 
-#define BOUNDI(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%d exceeds %d - %d)\n", loadmodel->name, VALUE, MIN, MAX);
-#define BOUNDF(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%f exceeds %f - %f)\n", loadmodel->name, VALUE, MIN, MAX);
-extern void R_Model_Alias_Draw(entity_render_t *ent);
-extern void R_Model_Alias_DrawFakeShadow(entity_render_t *ent);
-extern void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
-extern void R_Model_Alias_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz);
-void Mod_IDP0_Load(model_t *mod, void *buffer)
+#define BOUNDI(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%d exceeds %d - %d)", loadmodel->name, VALUE, MIN, MAX);
+#define BOUNDF(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%f exceeds %f - %f)", loadmodel->name, VALUE, MIN, MAX);
+void Mod_IDP0_Load(model_t *mod, void *buffer, void *bufferend)
 {
 	int i, j, version, totalskins, skinwidth, skinheight, groupframes, groupskins, numverts;
-	float scales, scalet, scale[3], translate[3], interval;
+	float scales, scalet, interval;
+	msurface_t *surface;
+	unsigned char *data;
 	mdl_t *pinmodel;
 	stvert_t *pinstverts;
 	dtriangle_t *pintriangles;
@@ -282,16 +755,16 @@ void Mod_IDP0_Load(model_t *mod, void *buffer)
 	daliasskininterval_t *pinskinintervals;
 	daliasframetype_t *pinframetype;
 	daliasgroup_t *pinframegroup;
-	qbyte *datapointer, *startframes, *startskins;
+	unsigned char *datapointer, *startframes, *startskins;
 	char name[MAX_QPATH];
 	skinframe_t tempskinframe;
 	animscene_t *tempskinscenes;
-	aliasskin_t *tempaliasskins;
+	texture_t *tempaliasskins;
 	float *vertst;
 	int *vertonseam, *vertremap;
 	skinfile_t *skinfiles;
 
-	datapointer = buffer;
+	datapointer = (unsigned char *)buffer;
 	pinmodel = (mdl_t *)datapointer;
 	datapointer += sizeof(mdl_t);
 
@@ -301,36 +774,40 @@ void Mod_IDP0_Load(model_t *mod, void *buffer)
 				 loadmodel->name, version, ALIAS_VERSION);
 
 	loadmodel->type = mod_alias;
-	loadmodel->alias.aliastype = ALIASTYPE_ALIAS;
 	loadmodel->DrawSky = NULL;
-	loadmodel->Draw = R_Model_Alias_Draw;
-	loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
-	loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
-	loadmodel->DrawLight = R_Model_Alias_DrawLight;
-
-	loadmodel->alias.aliasnum_meshes = 1;
-	loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, sizeof(aliasmesh_t));
+	loadmodel->Draw = R_Q1BSP_Draw;
+	loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
+	loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
+	loadmodel->DrawLight = R_Q1BSP_DrawLight;
+	loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
+
+	loadmodel->num_surfaces = 1;
+	loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
+	data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int));
+	loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
+	loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
+	loadmodel->surfacelist[0] = 0;
 
 	loadmodel->numskins = LittleLong(pinmodel->numskins);
-	BOUNDI(loadmodel->numskins,0,256);
+	BOUNDI(loadmodel->numskins,0,65536);
 	skinwidth = LittleLong (pinmodel->skinwidth);
-	BOUNDI(skinwidth,0,4096);
+	BOUNDI(skinwidth,0,65536);
 	skinheight = LittleLong (pinmodel->skinheight);
-	BOUNDI(skinheight,0,4096);
+	BOUNDI(skinheight,0,65536);
 	numverts = LittleLong(pinmodel->numverts);
 	BOUNDI(numverts,0,65536);
-	loadmodel->alias.aliasdata_meshes->num_triangles = LittleLong(pinmodel->numtris);
-	BOUNDI(loadmodel->alias.aliasdata_meshes->num_triangles,0,65536 / 3); // max elements limit, rather than max triangles limit
+	loadmodel->surfmesh.num_triangles = LittleLong(pinmodel->numtris);
+	BOUNDI(loadmodel->surfmesh.num_triangles,0,65536);
 	loadmodel->numframes = LittleLong(pinmodel->numframes);
 	BOUNDI(loadmodel->numframes,0,65536);
-	loadmodel->synctype = LittleLong (pinmodel->synctype);
+	loadmodel->synctype = (synctype_t)LittleLong (pinmodel->synctype);
 	BOUNDI(loadmodel->synctype,0,2);
 	loadmodel->flags = LittleLong (pinmodel->flags);
 
 	for (i = 0;i < 3;i++)
 	{
-		scale[i] = LittleFloat (pinmodel->scale[i]);
-		translate[i] = LittleFloat (pinmodel->scale_origin[i]);
+		loadmodel->surfmesh.num_morphmdlframescale[i] = LittleFloat (pinmodel->scale[i]);
+		loadmodel->surfmesh.num_morphmdlframetranslate[i] = LittleFloat (pinmodel->scale_origin[i]);
 	}
 
 	startskins = datapointer;
@@ -360,10 +837,10 @@ void Mod_IDP0_Load(model_t *mod, void *buffer)
 	datapointer += sizeof(stvert_t) * numverts;
 
 	pintriangles = (dtriangle_t *)datapointer;
-	datapointer += sizeof(dtriangle_t) * loadmodel->alias.aliasdata_meshes->num_triangles;
+	datapointer += sizeof(dtriangle_t) * loadmodel->surfmesh.num_triangles;
 
 	startframes = datapointer;
-	loadmodel->alias.aliasdata_meshes->num_frames = 0;
+	loadmodel->surfmesh.num_morphframes = 0;
 	for (i = 0;i < loadmodel->numframes;i++)
 	{
 		pinframetype = (daliasframetype_t *)datapointer;
@@ -382,14 +859,14 @@ void Mod_IDP0_Load(model_t *mod, void *buffer)
 		{
 			datapointer += sizeof(daliasframe_t);
 			datapointer += sizeof(trivertx_t) * numverts;
-			loadmodel->alias.aliasdata_meshes->num_frames++;
+			loadmodel->surfmesh.num_morphframes++;
 		}
 	}
 
 	// store texture coordinates into temporary array, they will be stored
 	// after usage is determined (triangle data)
-	vertst = Mem_Alloc(tempmempool, numverts * 2 * sizeof(float[2]));
-	vertremap = Mem_Alloc(tempmempool, numverts * 3 * sizeof(int));
+	vertst = (float *)Mem_Alloc(tempmempool, numverts * 2 * sizeof(float[2]));
+	vertremap = (int *)Mem_Alloc(tempmempool, numverts * 3 * sizeof(int));
 	vertonseam = vertremap + numverts * 2;
 
 	scales = 1.0 / skinwidth;
@@ -404,74 +881,73 @@ void Mod_IDP0_Load(model_t *mod, void *buffer)
 	}
 
 // load triangle data
-	loadmodel->alias.aliasdata_meshes->data_element3i = Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->alias.aliasdata_meshes->num_triangles);
+	loadmodel->surfmesh.data_element3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->surfmesh.num_triangles);
 
 	// read the triangle elements
-	for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles;i++)
+	for (i = 0;i < loadmodel->surfmesh.num_triangles;i++)
 		for (j = 0;j < 3;j++)
-			loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j] = LittleLong(pintriangles[i].vertindex[j]);
+			loadmodel->surfmesh.data_element3i[i*3+j] = LittleLong(pintriangles[i].vertindex[j]);
 	// validate (note numverts is used because this is the original data)
-	Mod_ValidateElements(loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->num_triangles, numverts, __FILE__, __LINE__);
+	Mod_ValidateElements(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles, 0, numverts, __FILE__, __LINE__);
 	// now butcher the elements according to vertonseam and tri->facesfront
 	// and then compact the vertex set to remove duplicates
-	for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles;i++)
+	for (i = 0;i < loadmodel->surfmesh.num_triangles;i++)
 		if (!LittleLong(pintriangles[i].facesfront)) // backface
 			for (j = 0;j < 3;j++)
-				if (vertonseam[loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j]])
-					loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j] += numverts;
+				if (vertonseam[loadmodel->surfmesh.data_element3i[i*3+j]])
+					loadmodel->surfmesh.data_element3i[i*3+j] += numverts;
 	// count the usage
 	// (this uses vertremap to count usage to save some memory)
 	for (i = 0;i < numverts*2;i++)
 		vertremap[i] = 0;
-	for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles*3;i++)
-		vertremap[loadmodel->alias.aliasdata_meshes->data_element3i[i]]++;
+	for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
+		vertremap[loadmodel->surfmesh.data_element3i[i]]++;
 	// build remapping table and compact array
-	loadmodel->alias.aliasdata_meshes->num_vertices = 0;
+	loadmodel->surfmesh.num_vertices = 0;
 	for (i = 0;i < numverts*2;i++)
 	{
 		if (vertremap[i])
 		{
-			vertremap[i] = loadmodel->alias.aliasdata_meshes->num_vertices;
-			vertst[loadmodel->alias.aliasdata_meshes->num_vertices*2+0] = vertst[i*2+0];
-			vertst[loadmodel->alias.aliasdata_meshes->num_vertices*2+1] = vertst[i*2+1];
-			loadmodel->alias.aliasdata_meshes->num_vertices++;
+			vertremap[i] = loadmodel->surfmesh.num_vertices;
+			vertst[loadmodel->surfmesh.num_vertices*2+0] = vertst[i*2+0];
+			vertst[loadmodel->surfmesh.num_vertices*2+1] = vertst[i*2+1];
+			loadmodel->surfmesh.num_vertices++;
 		}
 		else
 			vertremap[i] = -1; // not used at all
 	}
 	// remap the elements to the new vertex set
-	for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles * 3;i++)
-		loadmodel->alias.aliasdata_meshes->data_element3i[i] = vertremap[loadmodel->alias.aliasdata_meshes->data_element3i[i]];
+	for (i = 0;i < loadmodel->surfmesh.num_triangles * 3;i++)
+		loadmodel->surfmesh.data_element3i[i] = vertremap[loadmodel->surfmesh.data_element3i[i]];
 	// store the texture coordinates
-	loadmodel->alias.aliasdata_meshes->data_texcoord2f = Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * loadmodel->alias.aliasdata_meshes->num_vertices);
-	for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_vertices;i++)
+	loadmodel->surfmesh.data_texcoordtexture2f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * loadmodel->surfmesh.num_vertices);
+	for (i = 0;i < loadmodel->surfmesh.num_vertices;i++)
 	{
-		loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+0] = vertst[i*2+0];
-		loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+1] = vertst[i*2+1];
+		loadmodel->surfmesh.data_texcoordtexture2f[i*2+0] = vertst[i*2+0];
+		loadmodel->surfmesh.data_texcoordtexture2f[i*2+1] = vertst[i*2+1];
 	}
 
 // load the frames
-	loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
-	loadmodel->alias.aliasdata_meshes->data_aliasvertex3f = Mem_Alloc(loadmodel->mempool, sizeof(float[4][3]) * loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices);
-	loadmodel->alias.aliasdata_meshes->data_aliassvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices * 3 * 1;
-	loadmodel->alias.aliasdata_meshes->data_aliastvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices * 3 * 2;
-	loadmodel->alias.aliasdata_meshes->data_aliasnormal3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + loadmodel->alias.aliasdata_meshes->num_frames * loadmodel->alias.aliasdata_meshes->num_vertices * 3 * 3;
-	Mod_MDL_LoadFrames (startframes, numverts, scale, translate, vertremap);
-	loadmodel->alias.aliasdata_meshes->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_triangles * sizeof(int[3]));
-	Mod_BuildTriangleNeighbors(loadmodel->alias.aliasdata_meshes->data_neighbor3i, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->num_triangles);
-	Mod_CalcAliasModelBBoxes();
+	loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
+	loadmodel->surfmesh.data_morphmdlvertex = (trivertx_t *)Mem_Alloc(loadmodel->mempool, sizeof(trivertx_t) * loadmodel->surfmesh.num_morphframes * loadmodel->surfmesh.num_vertices);
+	loadmodel->surfmesh.data_neighbor3i = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_triangles * sizeof(int[3]));
+	Mod_MDL_LoadFrames (startframes, numverts, vertremap);
+	Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
+	Mod_Alias_CalculateBoundingBox();
+	Mod_Alias_Mesh_CompileFrameZero();
 
 	Mem_Free(vertst);
 	Mem_Free(vertremap);
 
 	// load the skins
-	if ((skinfiles = Mod_LoadSkinFiles()))
+	skinfiles = Mod_LoadSkinFiles();
+	loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
+	loadmodel->num_textures = loadmodel->num_surfaces;
+	loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * totalskins * sizeof(texture_t));
+	if (skinfiles)
 	{
-		loadmodel->alias.aliasdata_meshes->num_skins = totalskins = loadmodel->numskins;
-		loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
-		Mod_BuildAliasSkinsFromSkinFiles(loadmodel->alias.aliasdata_meshes->data_skins, skinfiles, "default", "");
+		Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures, skinfiles, "default", "");
 		Mod_FreeSkinFiles(skinfiles);
-		loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 		for (i = 0;i < loadmodel->numskins;i++)
 		{
 			loadmodel->skinscenes[i].firstframe = i;
@@ -482,9 +958,6 @@ void Mod_IDP0_Load(model_t *mod, void *buffer)
 	}
 	else
 	{
-		loadmodel->alias.aliasdata_meshes->num_skins = totalskins;
-		loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
-		loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 		totalskins = 0;
 		datapointer = startskins;
 		for (i = 0;i < loadmodel->numskins;i++)
@@ -509,7 +982,10 @@ void Mod_IDP0_Load(model_t *mod, void *buffer)
 
 				interval = LittleFloat(pinskinintervals[0].interval);
 				if (interval < 0.01f)
-					Host_Error("Mod_IDP0_Load: invalid interval\n");
+				{
+					Con_Printf("%s has an invalid interval %f, changing to 0.1\n", loadmodel->name, interval);
+					interval = 0.1f;
+				}
 			}
 
 			sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
@@ -524,63 +1000,60 @@ void Mod_IDP0_Load(model_t *mod, void *buffer)
 					sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 				else
 					sprintf (name, "%s_%i", loadmodel->name, i);
-				if (!Mod_LoadSkinFrame(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true))
-					Mod_LoadSkinFrame_Internal(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true, (qbyte *)datapointer, skinwidth, skinheight);
-				Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + totalskins, &tempskinframe);
+				if (!Mod_LoadSkinFrame(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PICMIP, true, true))
+					Mod_LoadSkinFrame_Internal(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_PICMIP, true, r_fullbrights.integer, (unsigned char *)datapointer, skinwidth, skinheight, 8, NULL, NULL);
+				Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + totalskins * loadmodel->num_surfaces, &tempskinframe);
 				datapointer += skinwidth * skinheight;
 				totalskins++;
 			}
 		}
 		// check for skins that don't exist in the model, but do exist as external images
 		// (this was added because yummyluv kept pestering me about support for it)
-		while (Mod_LoadSkinFrame(&tempskinframe, va("%s_%i", loadmodel->name, loadmodel->numskins), (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_CLAMP | TEXF_ALPHA, true, false, true))
+		while (Mod_LoadSkinFrame(&tempskinframe, va("%s_%i", loadmodel->name, loadmodel->numskins), (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PICMIP, true, true))
 		{
 			// expand the arrays to make room
 			tempskinscenes = loadmodel->skinscenes;
-			loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
+			loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 			memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 			Mem_Free(tempskinscenes);
 
-			tempaliasskins = loadmodel->alias.aliasdata_meshes->data_skins;
-			loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, (totalskins + 1) * sizeof(aliasskin_t));
-			memcpy(loadmodel->alias.aliasdata_meshes->data_skins, tempaliasskins, totalskins * sizeof(aliasskin_t));
+			tempaliasskins = loadmodel->data_textures;
+			loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * (totalskins + 1) * sizeof(texture_t));
+			memcpy(loadmodel->data_textures, tempaliasskins, loadmodel->num_surfaces * totalskins * sizeof(texture_t));
 			Mem_Free(tempaliasskins);
 
 			// store the info about the new skin
-			Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + totalskins, &tempskinframe);
-			strcpy(loadmodel->skinscenes[loadmodel->numskins].name, name);
+			Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + totalskins * loadmodel->num_surfaces, &tempskinframe);
+			strlcpy(loadmodel->skinscenes[loadmodel->numskins].name, name, sizeof(loadmodel->skinscenes[loadmodel->numskins].name));
 			loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 			loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 			loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 			loadmodel->skinscenes[loadmodel->numskins].loop = true;
 
 			//increase skin counts
-			loadmodel->alias.aliasdata_meshes->num_skins++;
 			loadmodel->numskins++;
 			totalskins++;
 		}
 	}
-}
 
-static void Mod_MD2_ConvertVerts (vec3_t scale, vec3_t translate, trivertx_t *v, float *out3f, int numverts, int *vertremap)
-{
-	int i;
-	trivertx_t *in;
-	for (i = 0;i < numverts;i++, out3f += 3)
-	{
-		in = v + vertremap[i];
-		out3f[0] = in->v[0] * scale[0] + translate[0];
-		out3f[1] = in->v[1] * scale[1] + translate[1];
-		out3f[2] = in->v[2] * scale[2] + translate[2];
-	}
+	surface = loadmodel->data_surfaces;
+	surface->texture = loadmodel->data_textures;
+	surface->num_firsttriangle = 0;
+	surface->num_triangles = loadmodel->surfmesh.num_triangles;
+	surface->num_firstvertex = 0;
+	surface->num_vertices = loadmodel->surfmesh.num_vertices;
+
+	loadmodel->surfmesh.isanimated = loadmodel->numframes > 1 || loadmodel->animscenes[0].framecount > 1;
 }
 
-void Mod_IDP2_Load(model_t *mod, void *buffer)
+void Mod_IDP2_Load(model_t *mod, void *buffer, void *bufferend)
 {
-	int i, j, k, hashindex, num, numxyz, numst, xyz, st, skinwidth, skinheight, *vertremap, version, end, numverts;
-	float *stverts, s, t, scale[3], translate[3];
+	int i, j, hashindex, numxyz, numst, xyz, st, skinwidth, skinheight, *vertremap, version, end;
+	float iskinwidth, iskinheight;
+	unsigned char *data;
+	msurface_t *surface;
 	md2_t *pinmodel;
-	qbyte *base, *datapointer;
+	unsigned char *base, *datapointer;
 	md2frame_t *pinframe;
 	char *inskin;
 	md2triangle_t *intri;
@@ -588,15 +1061,15 @@ void Mod_IDP2_Load(model_t *mod, void *buffer)
 	struct md2verthash_s
 	{
 		struct md2verthash_s *next;
-		int xyz;
-		float st[2];
+		unsigned short xyz;
+		unsigned short st;
 	}
 	*hash, **md2verthash, *md2verthashdata;
 	skinframe_t tempskinframe;
 	skinfile_t *skinfiles;
 
-	pinmodel = buffer;
-	base = buffer;
+	pinmodel = (md2_t *)buffer;
+	base = (unsigned char *)buffer;
 
 	version = LittleLong (pinmodel->version);
 	if (version != MD2ALIAS_VERSION)
@@ -604,14 +1077,14 @@ void Mod_IDP2_Load(model_t *mod, void *buffer)
 			loadmodel->name, version, MD2ALIAS_VERSION);
 
 	loadmodel->type = mod_alias;
-	loadmodel->alias.aliastype = ALIASTYPE_ALIAS;
 	loadmodel->DrawSky = NULL;
-	loadmodel->Draw = R_Model_Alias_Draw;
-	loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
-	loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
-	loadmodel->DrawLight = R_Model_Alias_DrawLight;
+	loadmodel->Draw = R_Q1BSP_Draw;
+	loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
+	loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
+	loadmodel->DrawLight = R_Q1BSP_DrawLight;
+	loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
 
-	if (LittleLong(pinmodel->num_tris) < 1 || LittleLong(pinmodel->num_tris) > (65536 / 3))
+	if (LittleLong(pinmodel->num_tris) < 1 || LittleLong(pinmodel->num_tris) > 65536)
 		Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 	if (LittleLong(pinmodel->num_xyz) < 1 || LittleLong(pinmodel->num_xyz) > 65536)
 		Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
@@ -632,42 +1105,54 @@ void Mod_IDP2_Load(model_t *mod, void *buffer)
 	if (LittleLong(pinmodel->ofs_glcmds) <= 0 || LittleLong(pinmodel->ofs_glcmds) >= end)
 		Host_Error ("%s is not a valid model", loadmodel->name);
 
-	loadmodel->alias.aliasnum_meshes = 1;
-	loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, sizeof(aliasmesh_t));
-
 	loadmodel->numskins = LittleLong(pinmodel->num_skins);
 	numxyz = LittleLong(pinmodel->num_xyz);
 	numst = LittleLong(pinmodel->num_st);
-	loadmodel->alias.aliasdata_meshes->num_triangles = LittleLong(pinmodel->num_tris);
+	loadmodel->surfmesh.num_triangles = LittleLong(pinmodel->num_tris);
 	loadmodel->numframes = LittleLong(pinmodel->num_frames);
-	loadmodel->alias.aliasdata_meshes->num_frames = loadmodel->numframes;
-	loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
+	loadmodel->surfmesh.num_morphframes = loadmodel->numframes;
+	skinwidth = LittleLong(pinmodel->skinwidth);
+	skinheight = LittleLong(pinmodel->skinheight);
+	iskinwidth = 1.0f / skinwidth;
+	iskinheight = 1.0f / skinheight;
+
+	loadmodel->num_surfaces = 1;
+	loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
+	data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->numframes * sizeof(animscene_t) + loadmodel->numframes * sizeof(float[6]) + loadmodel->surfmesh.num_triangles * sizeof(int[3]) + loadmodel->surfmesh.num_triangles * sizeof(int[3]));
+	loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
+	loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
+	loadmodel->surfacelist[0] = 0;
+	loadmodel->animscenes = (animscene_t *)data;data += loadmodel->numframes * sizeof(animscene_t);
+	loadmodel->surfmesh.data_morphmd2framesize6f = (float *)data;data += loadmodel->numframes * sizeof(float[6]);
+	loadmodel->surfmesh.data_element3i = (int *)data;data += loadmodel->surfmesh.num_triangles * sizeof(int[3]);
+	loadmodel->surfmesh.data_neighbor3i = (int *)data;data += loadmodel->surfmesh.num_triangles * sizeof(int[3]);
 
 	loadmodel->flags = 0; // there are no MD2 flags
 	loadmodel->synctype = ST_RAND;
 
 	// load the skins
-	inskin = (void*)(base + LittleLong(pinmodel->ofs_skins));
-	if ((skinfiles = Mod_LoadSkinFiles()))
+	inskin = (char *)(base + LittleLong(pinmodel->ofs_skins));
+	skinfiles = Mod_LoadSkinFiles();
+	if (skinfiles)
 	{
-		loadmodel->alias.aliasdata_meshes->num_skins = loadmodel->numskins;
-		loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
-		Mod_BuildAliasSkinsFromSkinFiles(loadmodel->alias.aliasdata_meshes->data_skins, skinfiles, "default", "");
+		loadmodel->num_textures = loadmodel->num_surfaces;
+		loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
+		Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures, skinfiles, "default", "");
 		Mod_FreeSkinFiles(skinfiles);
 	}
 	else if (loadmodel->numskins)
 	{
 		// skins found (most likely not a player model)
-		loadmodel->alias.aliasdata_meshes->num_skins = loadmodel->numskins;
-		loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
+		loadmodel->num_textures = loadmodel->num_surfaces;
+		loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
 		for (i = 0;i < loadmodel->numskins;i++, inskin += MD2_SKINNAME)
 		{
-			if (Mod_LoadSkinFrame(&tempskinframe, inskin, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_CLAMP | TEXF_PRECACHE, true, false, true))
-				Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + i, &tempskinframe);
+			if (Mod_LoadSkinFrame(&tempskinframe, inskin, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, true, true))
+				Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i * loadmodel->num_surfaces, &tempskinframe);
 			else
 			{
-				Con_Printf("Mod_IDP2_Load: missing skin \"%s\"\n", inskin);
-				Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins + i, NULL);
+				Con_Printf("%s is missing skin \"%s\"\n", loadmodel->name, inskin);
+				Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i * loadmodel->num_surfaces, NULL);
 			}
 		}
 	}
@@ -675,12 +1160,12 @@ void Mod_IDP2_Load(model_t *mod, void *buffer)
 	{
 		// no skins (most likely a player model)
 		loadmodel->numskins = 1;
-		loadmodel->alias.aliasdata_meshes->num_skins = loadmodel->numskins;
-		loadmodel->alias.aliasdata_meshes->data_skins = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_skins * sizeof(aliasskin_t));
-		Mod_BuildAliasSkinFromSkinFrame(loadmodel->alias.aliasdata_meshes->data_skins, NULL);
+		loadmodel->num_textures = loadmodel->num_surfaces;
+		loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
+		Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures, NULL);
 	}
 
-	loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
+	loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 	for (i = 0;i < loadmodel->numskins;i++)
 	{
 		loadmodel->skinscenes[i].firstframe = i;
@@ -690,79 +1175,63 @@ void Mod_IDP2_Load(model_t *mod, void *buffer)
 	}
 
 	// load the triangles and stvert data
-	inst = (void*)(base + LittleLong(pinmodel->ofs_st));
-	intri = (void*)(base + LittleLong(pinmodel->ofs_tris));
-	skinwidth = LittleLong(pinmodel->skinwidth);
-	skinheight = LittleLong(pinmodel->skinheight);
-
-	stverts = Mem_Alloc(tempmempool, numst * sizeof(float[2]));
-	s = 1.0f / skinwidth;
-	t = 1.0f / skinheight;
-	for (i = 0;i < numst;i++)
-	{
-		j = (unsigned short) LittleShort(inst[i*2+0]);
-		k = (unsigned short) LittleShort(inst[i*2+1]);
-		if (j >= skinwidth || k >= skinheight)
-		{
-			Mem_Free(stverts);
-			Host_Error("Mod_MD2_LoadGeometry: invalid skin coordinate (%i %i) on vert %i of model %s\n", j, k, i, loadmodel->name);
-		}
-		stverts[i*2+0] = j * s;
-		stverts[i*2+1] = k * t;
-	}
-
-	md2verthash = Mem_Alloc(tempmempool, 256 * sizeof(hash));
-	md2verthashdata = Mem_Alloc(tempmempool, loadmodel->alias.aliasdata_meshes->num_triangles * 3 * sizeof(*hash));
+	inst = (unsigned short *)(base + LittleLong(pinmodel->ofs_st));
+	intri = (md2triangle_t *)(base + LittleLong(pinmodel->ofs_tris));
+	md2verthash = (struct md2verthash_s **)Mem_Alloc(tempmempool, 65536 * sizeof(hash));
+	md2verthashdata = (struct md2verthash_s *)Mem_Alloc(tempmempool, loadmodel->surfmesh.num_triangles * 3 * sizeof(*hash));
 	// swap the triangle list
-	num = 0;
-	loadmodel->alias.aliasdata_meshes->data_element3i = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_triangles * sizeof(int[3]));
-	for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_triangles;i++)
+	loadmodel->surfmesh.num_vertices = 0;
+	for (i = 0;i < loadmodel->surfmesh.num_triangles;i++)
 	{
 		for (j = 0;j < 3;j++)
 		{
 			xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
 			st = (unsigned short) LittleShort (intri[i].index_st[j]);
-			if (xyz >= numxyz || st >= numst)
+			if (xyz >= numxyz)
+			{
+				Con_Printf("%s has an invalid xyz index (%i) on triangle %i, resetting to 0\n", loadmodel->name, xyz, i);
+				xyz = 0;
+			}
+			if (st >= numst)
 			{
-				Mem_Free(md2verthash);
-				Mem_Free(md2verthashdata);
-				Mem_Free(stverts);
-				if (xyz >= numxyz)
-					Host_Error("Mod_MD2_LoadGeometry: invalid xyz index (%i) on triangle %i of model %s\n", xyz, i, loadmodel->name);
-				if (st >= numst)
-					Host_Error("Mod_MD2_LoadGeometry: invalid st index (%i) on triangle %i of model %s\n", st, i, loadmodel->name);
+				Con_Printf("%s has an invalid st index (%i) on triangle %i, resetting to 0\n", loadmodel->name, st, i);
+				st = 0;
 			}
-			s = stverts[st*2+0];
-			t = stverts[st*2+1];
-			hashindex = (xyz * 17 + st) & 255;
+			hashindex = (xyz * 256 + st) & 65535;
 			for (hash = md2verthash[hashindex];hash;hash = hash->next)
-				if (hash->xyz == xyz && hash->st[0] == s && hash->st[1] == t)
+				if (hash->xyz == xyz && hash->st == st)
 					break;
 			if (hash == NULL)
 			{
-				hash = md2verthashdata + num++;
+				hash = md2verthashdata + loadmodel->surfmesh.num_vertices++;
 				hash->xyz = xyz;
-				hash->st[0] = s;
-				hash->st[1] = t;
+				hash->st = st;
 				hash->next = md2verthash[hashindex];
 				md2verthash[hashindex] = hash;
 			}
-			loadmodel->alias.aliasdata_meshes->data_element3i[i*3+j] = (hash - md2verthashdata);
+			loadmodel->surfmesh.data_element3i[i*3+j] = (hash - md2verthashdata);
 		}
 	}
 
-	Mem_Free(stverts);
-
-	numverts = num;
-	loadmodel->alias.aliasdata_meshes->num_vertices = numverts;
-	vertremap = Mem_Alloc(loadmodel->mempool, num * sizeof(int));
-	loadmodel->alias.aliasdata_meshes->data_texcoord2f = Mem_Alloc(loadmodel->mempool, num * sizeof(float[2]));
-	for (i = 0;i < num;i++)
+	vertremap = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_vertices * sizeof(int));
+	data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_vertices * sizeof(float[2]) + loadmodel->surfmesh.num_vertices * loadmodel->surfmesh.num_morphframes * sizeof(trivertx_t));
+	loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
+	loadmodel->surfmesh.data_morphmdlvertex = (trivertx_t *)data;data += loadmodel->surfmesh.num_vertices * loadmodel->surfmesh.num_morphframes * sizeof(trivertx_t);
+	for (i = 0;i < loadmodel->surfmesh.num_vertices;i++)
 	{
+		int sts, stt;
 		hash = md2verthashdata + i;
 		vertremap[i] = hash->xyz;
-		loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+0] = hash->st[0];
-		loadmodel->alias.aliasdata_meshes->data_texcoord2f[i*2+1] = hash->st[1];
+		sts = LittleShort(inst[hash->st*2+0]);
+		stt = LittleShort(inst[hash->st*2+1]);
+		if (sts < 0 || sts >= skinwidth || stt < 0 || stt >= skinheight)
+		{
+			Con_Printf("%s has an invalid skin coordinate (%i %i) on vert %i, changing to 0 0\n", loadmodel->name, sts, stt, i);
+			sts = 0;
+			stt = 0;
+		}
+		loadmodel->surfmesh.data_texcoordtexture2f[i*2+0] = sts * iskinwidth;
+		loadmodel->surfmesh.data_texcoordtexture2f[i*2+1] = stt * iskinheight;
 	}
 
 	Mem_Free(md2verthash);
@@ -770,24 +1239,27 @@ void Mod_IDP2_Load(model_t *mod, void *buffer)
 
 	// load the frames
 	datapointer = (base + LittleLong(pinmodel->ofs_frames));
-	loadmodel->alias.aliasdata_meshes->data_aliasvertex3f = Mem_Alloc(loadmodel->mempool, numverts * loadmodel->alias.aliasdata_meshes->num_frames * sizeof(float[4][3]));
-	loadmodel->alias.aliasdata_meshes->data_aliassvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + numverts * loadmodel->alias.aliasdata_meshes->num_frames * 3 * 1;
-	loadmodel->alias.aliasdata_meshes->data_aliastvector3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + numverts * loadmodel->alias.aliasdata_meshes->num_frames * 3 * 2;
-	loadmodel->alias.aliasdata_meshes->data_aliasnormal3f = loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + numverts * loadmodel->alias.aliasdata_meshes->num_frames * 3 * 3;
-	for (i = 0;i < loadmodel->alias.aliasdata_meshes->num_frames;i++)
+	for (i = 0;i < loadmodel->surfmesh.num_morphframes;i++)
 	{
+		int k;
+		trivertx_t *v;
+		trivertx_t *out;
 		pinframe = (md2frame_t *)datapointer;
 		datapointer += sizeof(md2frame_t);
+		// store the frame scale/translate into the appropriate array
 		for (j = 0;j < 3;j++)
 		{
-			scale[j] = LittleFloat(pinframe->scale[j]);
-			translate[j] = LittleFloat(pinframe->translate[j]);
+			loadmodel->surfmesh.data_morphmd2framesize6f[i*6+j] = LittleFloat(pinframe->scale[j]);
+			loadmodel->surfmesh.data_morphmd2framesize6f[i*6+3+j] = LittleFloat(pinframe->translate[j]);
 		}
-		Mod_MD2_ConvertVerts(scale, translate, (void *)datapointer, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + i * numverts * 3, numverts, vertremap);
-		Mod_BuildTextureVectorsAndNormals(loadmodel->alias.aliasdata_meshes->num_vertices, loadmodel->alias.aliasdata_meshes->num_triangles, loadmodel->alias.aliasdata_meshes->data_aliasvertex3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_texcoord2f, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->data_aliassvector3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliastvector3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3, loadmodel->alias.aliasdata_meshes->data_aliasnormal3f + i * loadmodel->alias.aliasdata_meshes->num_vertices * 3);
+		// convert the vertices
+		v = (trivertx_t *)datapointer;
+		out = loadmodel->surfmesh.data_morphmdlvertex + i * loadmodel->surfmesh.num_vertices;
+		for (k = 0;k < loadmodel->surfmesh.num_vertices;k++)
+			out[k] = v[vertremap[k]];
 		datapointer += numxyz * sizeof(trivertx_t);
 
-		strcpy(loadmodel->animscenes[i].name, pinframe->name);
+		strlcpy(loadmodel->animscenes[i].name, pinframe->name, sizeof(loadmodel->animscenes[i].name));
 		loadmodel->animscenes[i].firstframe = i;
 		loadmodel->animscenes[i].framecount = 1;
 		loadmodel->animscenes[i].framerate = 10;
@@ -796,25 +1268,35 @@ void Mod_IDP2_Load(model_t *mod, void *buffer)
 
 	Mem_Free(vertremap);
 
-	loadmodel->alias.aliasdata_meshes->data_neighbor3i = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasdata_meshes->num_triangles * sizeof(int[3]));
-	Mod_BuildTriangleNeighbors(loadmodel->alias.aliasdata_meshes->data_neighbor3i, loadmodel->alias.aliasdata_meshes->data_element3i, loadmodel->alias.aliasdata_meshes->num_triangles);
-	Mod_CalcAliasModelBBoxes();
+	Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
+	Mod_Alias_CalculateBoundingBox();
+	Mod_Alias_Mesh_CompileFrameZero();
+
+	surface = loadmodel->data_surfaces;
+	surface->texture = loadmodel->data_textures;
+	surface->num_firsttriangle = 0;
+	surface->num_triangles = loadmodel->surfmesh.num_triangles;
+	surface->num_firstvertex = 0;
+	surface->num_vertices = loadmodel->surfmesh.num_vertices;
+
+	loadmodel->surfmesh.isanimated = loadmodel->numframes > 1 || loadmodel->animscenes[0].framecount > 1;
 }
 
-void Mod_IDP3_Load(model_t *mod, void *buffer)
+void Mod_IDP3_Load(model_t *mod, void *buffer, void *bufferend)
 {
-	int i, j, k, version;
+	int i, j, k, version, meshvertices, meshtriangles;
+	unsigned char *data;
+	msurface_t *surface;
 	md3modelheader_t *pinmodel;
 	md3frameinfo_t *pinframe;
 	md3mesh_t *pinmesh;
 	md3tag_t *pintag;
-	aliasmesh_t *mesh;
 	skinfile_t *skinfiles;
 
-	pinmodel = buffer;
+	pinmodel = (md3modelheader_t *)buffer;
 
 	if (memcmp(pinmodel->identifier, "IDP3", 4))
-		Host_Error ("%s is not a MD3 (IDP3) file\n", loadmodel->name);
+		Host_Error ("%s is not a MD3 (IDP3) file", loadmodel->name);
 	version = LittleLong (pinmodel->version);
 	if (version != MD3VERSION)
 		Host_Error ("%s has wrong version number (%i should be %i)",
@@ -825,21 +1307,21 @@ void Mod_IDP3_Load(model_t *mod, void *buffer)
 		loadmodel->numskins = 1;
 
 	loadmodel->type = mod_alias;
-	loadmodel->alias.aliastype = ALIASTYPE_ALIAS;
 	loadmodel->DrawSky = NULL;
-	loadmodel->Draw = R_Model_Alias_Draw;
-	loadmodel->DrawFakeShadow = R_Model_Alias_DrawFakeShadow;
-	loadmodel->DrawShadowVolume = R_Model_Alias_DrawShadowVolume;
-	loadmodel->DrawLight = R_Model_Alias_DrawLight;
-	loadmodel->flags = 0;
+	loadmodel->Draw = R_Q1BSP_Draw;
+	loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
+	loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
+	loadmodel->DrawLight = R_Q1BSP_DrawLight;
+	loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
+	loadmodel->flags = LittleLong(pinmodel->flags);
 	loadmodel->synctype = ST_RAND;
 
 	// set up some global info about the model
 	loadmodel->numframes = LittleLong(pinmodel->num_frames);
-	loadmodel->alias.aliasnum_meshes = LittleLong(pinmodel->num_meshes);
+	loadmodel->num_surfaces = LittleLong(pinmodel->num_meshes);
 
 	// make skinscenes for the skins (no groups)
-	loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
+	loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
 	for (i = 0;i < loadmodel->numskins;i++)
 	{
 		loadmodel->skinscenes[i].firstframe = i;
@@ -849,10 +1331,10 @@ void Mod_IDP3_Load(model_t *mod, void *buffer)
 	}
 
 	// load frameinfo
-	loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
-	for (i = 0, pinframe = (md3frameinfo_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_frameinfo));i < loadmodel->numframes;i++, pinframe++)
+	loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
+	for (i = 0, pinframe = (md3frameinfo_t *)((unsigned char *)pinmodel + LittleLong(pinmodel->lump_frameinfo));i < loadmodel->numframes;i++, pinframe++)
 	{
-		strcpy(loadmodel->animscenes[i].name, pinframe->name);
+		strlcpy(loadmodel->animscenes[i].name, pinframe->name, sizeof(loadmodel->animscenes[i].name));
 		loadmodel->animscenes[i].firstframe = i;
 		loadmodel->animscenes[i].framecount = 1;
 		loadmodel->animscenes[i].framerate = 10;
@@ -860,94 +1342,123 @@ void Mod_IDP3_Load(model_t *mod, void *buffer)
 	}
 
 	// load tags
-	loadmodel->alias.aliasnum_tagframes = loadmodel->numframes;
-	loadmodel->alias.aliasnum_tags = LittleLong(pinmodel->num_tags);
-	loadmodel->alias.aliasdata_tags = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasnum_tagframes * loadmodel->alias.aliasnum_tags * sizeof(aliastag_t));
-	for (i = 0, pintag = (md3tag_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_tags));i < loadmodel->alias.aliasnum_tagframes * loadmodel->alias.aliasnum_tags;i++, pintag++)
+	loadmodel->num_tagframes = loadmodel->numframes;
+	loadmodel->num_tags = LittleLong(pinmodel->num_tags);
+	loadmodel->data_tags = (aliastag_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_tagframes * loadmodel->num_tags * sizeof(aliastag_t));
+	for (i = 0, pintag = (md3tag_t *)((unsigned char *)pinmodel + LittleLong(pinmodel->lump_tags));i < loadmodel->num_tagframes * loadmodel->num_tags;i++, pintag++)
 	{
-		strcpy(loadmodel->alias.aliasdata_tags[i].name, pintag->name);
-		Matrix4x4_CreateIdentity(&loadmodel->alias.aliasdata_tags[i].matrix);
+		strlcpy(loadmodel->data_tags[i].name, pintag->name, sizeof(loadmodel->data_tags[i].name));
+		for (j = 0;j < 9;j++)
+			loadmodel->data_tags[i].matrixgl[j] = LittleFloat(pintag->rotationmatrix[j]);
 		for (j = 0;j < 3;j++)
-		{
-			for (k = 0;k < 3;k++)
-				loadmodel->alias.aliasdata_tags[i].matrix.m[j][k] = LittleFloat(pintag->rotationmatrix[k * 3 + j]);
-			loadmodel->alias.aliasdata_tags[i].matrix.m[j][3] = LittleFloat(pintag->origin[j]);
-		}
-		//Con_Printf("model \"%s\" frame #%i tag #%i \"%s\"\n", loadmodel->name, i / loadmodel->alias.aliasnum_tags, i % loadmodel->alias.aliasnum_tags, loadmodel->alias.aliasdata_tags[i].name);
+			loadmodel->data_tags[i].matrixgl[9+j] = LittleFloat(pintag->origin[j]);
+		//Con_Printf("model \"%s\" frame #%i tag #%i \"%s\"\n", loadmodel->name, i / loadmodel->num_tags, i % loadmodel->num_tags, loadmodel->data_tags[i].name);
 	}
 
 	// load meshes
-	loadmodel->alias.aliasdata_meshes = Mem_Alloc(loadmodel->mempool, loadmodel->alias.aliasnum_meshes * sizeof(aliasmesh_t));
-	for (i = 0, pinmesh = (md3mesh_t *)((qbyte *)pinmodel + LittleLong(pinmodel->lump_meshes));i < loadmodel->alias.aliasnum_meshes;i++, pinmesh = (md3mesh_t *)((qbyte *)pinmesh + LittleLong(pinmesh->lump_end)))
+	meshvertices = 0;
+	meshtriangles = 0;
+	for (i = 0, pinmesh = (md3mesh_t *)((unsigned char *)pinmodel + LittleLong(pinmodel->lump_meshes));i < loadmodel->num_surfaces;i++, pinmesh = (md3mesh_t *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_end)))
 	{
 		if (memcmp(pinmesh->identifier, "IDP3", 4))
-			Host_Error("Mod_IDP3_Load: invalid mesh identifier (not IDP3)\n");
-		mesh = loadmodel->alias.aliasdata_meshes + i;
-		mesh->num_skins = loadmodel->numskins;
-		mesh->num_frames = LittleLong(pinmesh->num_frames);
-		mesh->num_vertices = LittleLong(pinmesh->num_vertices);
-		mesh->num_triangles = LittleLong(pinmesh->num_triangles);
-		mesh->data_skins = Mem_Alloc(loadmodel->mempool, mesh->num_skins * sizeof(aliasskin_t));
-		mesh->data_element3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
-		mesh->data_neighbor3i = Mem_Alloc(loadmodel->mempool, mesh->num_triangles * sizeof(int[3]));
-		mesh->data_texcoord2f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * sizeof(float[2]));
-		mesh->data_aliasvertex3f = Mem_Alloc(loadmodel->mempool, mesh->num_vertices * mesh->num_frames * sizeof(float[4][3]));
-		mesh->data_aliassvector3f = mesh->data_aliasvertex3f + mesh->num_vertices * mesh->num_frames * 3 * 1;
-		mesh->data_aliastvector3f = mesh->data_aliasvertex3f + mesh->num_vertices * mesh->num_frames * 3 * 2;
-		mesh->data_aliasnormal3f = mesh->data_aliasvertex3f + mesh->num_vertices * mesh->num_frames * 3 * 3;
-		for (j = 0;j < mesh->num_triangles * 3;j++)
-			mesh->data_element3i[j] = LittleLong(((int *)((qbyte *)pinmesh + pinmesh->lump_elements))[j]);
-		for (j = 0;j < mesh->num_vertices;j++)
+			Host_Error("Mod_IDP3_Load: invalid mesh identifier (not IDP3)");
+		if (LittleLong(pinmesh->num_frames) != loadmodel->numframes)
+			Host_Error("Mod_IDP3_Load: mesh numframes differs from header");
+		meshvertices += LittleLong(pinmesh->num_vertices);
+		meshtriangles += LittleLong(pinmesh->num_triangles);
+	}
+
+	loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
+	loadmodel->num_textures = loadmodel->num_surfaces;
+	data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + meshtriangles * sizeof(int[3]) + meshvertices * sizeof(float[2]) + meshvertices * loadmodel->numframes * sizeof(md3vertex_t));
+	loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
+	loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
+	loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
+	loadmodel->surfmesh.num_vertices = meshvertices;
+	loadmodel->surfmesh.num_triangles = meshtriangles;
+	loadmodel->surfmesh.num_morphframes = loadmodel->numframes; // TODO: remove?
+	loadmodel->surfmesh.data_element3i = (int *)data;data += meshtriangles * sizeof(int[3]);
+	loadmodel->surfmesh.data_neighbor3i = (int *)data;data += meshtriangles * sizeof(int[3]);
+	loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += meshvertices * sizeof(float[2]);
+	loadmodel->surfmesh.data_morphmd3vertex = (md3vertex_t *)data;data += meshvertices * loadmodel->numframes * sizeof(md3vertex_t);
+
+	meshvertices = 0;
+	meshtriangles = 0;
+	for (i = 0, pinmesh = (md3mesh_t *)((unsigned char *)pinmodel + LittleLong(pinmodel->lump_meshes));i < loadmodel->num_surfaces;i++, pinmesh = (md3mesh_t *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_end)))
+	{
+		if (memcmp(pinmesh->identifier, "IDP3", 4))
+			Host_Error("Mod_IDP3_Load: invalid mesh identifier (not IDP3)");
+		loadmodel->surfacelist[i] = i;
+		surface = loadmodel->data_surfaces + i;
+		surface->texture = loadmodel->data_textures + i;
+		surface->num_firsttriangle = meshtriangles;
+		surface->num_triangles = LittleLong(pinmesh->num_triangles);
+		surface->num_firstvertex = meshvertices;
+		surface->num_vertices = LittleLong(pinmesh->num_vertices);
+		meshvertices += surface->num_vertices;
+		meshtriangles += surface->num_triangles;
+
+		for (j = 0;j < surface->num_triangles * 3;j++)
+			loadmodel->surfmesh.data_element3i[j + surface->num_firsttriangle * 3] = surface->num_firstvertex + LittleLong(((int *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_elements)))[j]);
+		for (j = 0;j < surface->num_vertices;j++)
 		{
-			mesh->data_texcoord2f[j * 2 + 0] = LittleFloat(((float *)((qbyte *)pinmesh + pinmesh->lump_texcoords))[j * 2 + 0]);
-			mesh->data_texcoord2f[j * 2 + 1] = LittleFloat(((float *)((qbyte *)pinmesh + pinmesh->lump_texcoords))[j * 2 + 1]);
+			loadmodel->surfmesh.data_texcoordtexture2f[(j + surface->num_firstvertex) * 2 + 0] = LittleFloat(((float *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_texcoords)))[j * 2 + 0]);
+			loadmodel->surfmesh.data_texcoordtexture2f[(j + surface->num_firstvertex) * 2 + 1] = LittleFloat(((float *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_texcoords)))[j * 2 + 1]);
 		}
-		for (j = 0;j < mesh->num_vertices * mesh->num_frames;j++)
+		for (j = 0;j < loadmodel->numframes;j++)
 		{
-			mesh->data_aliasvertex3f[j * 3 + 0] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 0]) * (1.0f / 64.0f);
-			mesh->data_aliasvertex3f[j * 3 + 1] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 1]) * (1.0f / 64.0f);
-			mesh->data_aliasvertex3f[j * 3 + 2] = LittleShort(((short *)((qbyte *)pinmesh + pinmesh->lump_framevertices))[j * 4 + 2]) * (1.0f / 64.0f);
+			const md3vertex_t *in = (md3vertex_t *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_framevertices)) + j * surface->num_vertices;
+			md3vertex_t *out = loadmodel->surfmesh.data_morphmd3vertex + surface->num_firstvertex + j * loadmodel->surfmesh.num_vertices;
+			for (k = 0;k < surface->num_vertices;k++, in++, out++)
+			{
+				out->origin[0] = LittleShort(in->origin[0]);
+				out->origin[1] = LittleShort(in->origin[1]);
+				out->origin[2] = LittleShort(in->origin[2]);
+				out->pitch = in->pitch;
+				out->yaw = in->yaw;
+			}
 		}
-		for (j = 0;j < mesh->num_frames;j++)
-			Mod_BuildTextureVectorsAndNormals(mesh->num_vertices, mesh->num_triangles, mesh->data_aliasvertex3f + j * mesh->num_vertices * 3, mesh->data_texcoord2f, mesh->data_element3i, mesh->data_aliassvector3f + j * mesh->num_vertices * 3, mesh->data_aliastvector3f + j * mesh->num_vertices * 3, mesh->data_aliasnormal3f + j * mesh->num_vertices * 3);
-
-		Mod_ValidateElements(mesh->data_element3i, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
-		Mod_BuildTriangleNeighbors(mesh->data_neighbor3i, mesh->data_element3i, mesh->num_triangles);
 
-		if (LittleLong(pinmesh->num_shaders) >= 1 && ((md3shader_t *)((qbyte *) pinmesh + pinmesh->lump_shaders))->name[0])
-			Mod_BuildAliasSkinsFromSkinFiles(mesh->data_skins, skinfiles, pinmesh->name, ((md3shader_t *)((qbyte *) pinmesh + pinmesh->lump_shaders))->name);
+		if (LittleLong(pinmesh->num_shaders) >= 1)
+			Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + i, skinfiles, pinmesh->name, ((md3shader_t *)((unsigned char *) pinmesh + LittleLong(pinmesh->lump_shaders)))->name);
 		else
-			for (j = 0;j < mesh->num_skins;j++)
-				Mod_BuildAliasSkinFromSkinFrame(mesh->data_skins + j, NULL);
+			for (j = 0;j < loadmodel->numskins;j++)
+				Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i + j * loadmodel->num_surfaces, NULL);
+
+		Mod_ValidateElements(loadmodel->surfmesh.data_element3i + surface->num_firsttriangle * 3, surface->num_triangles, surface->num_firstvertex, surface->num_vertices, __FILE__, __LINE__);
 	}
-	Mod_CalcAliasModelBBoxes();
+	Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
+	Mod_Alias_Mesh_CompileFrameZero();
+	Mod_Alias_CalculateBoundingBox();
 	Mod_FreeSkinFiles(skinfiles);
+
+	loadmodel->surfmesh.isanimated = loadmodel->numframes > 1 || loadmodel->animscenes[0].framecount > 1;
 }
 
-extern void R_Model_Zymotic_DrawSky(entity_render_t *ent);
-extern void R_Model_Zymotic_Draw(entity_render_t *ent);
-extern void R_Model_Zymotic_DrawFakeShadow(entity_render_t *ent);
-extern void R_Model_Zymotic_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius);
-extern void R_Model_Zymotic_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz);
-void Mod_ZYMOTICMODEL_Load(model_t *mod, void *buffer)
+void Mod_ZYMOTICMODEL_Load(model_t *mod, void *buffer, void *bufferend)
 {
 	zymtype1header_t *pinmodel, *pheader;
-	qbyte *pbase;
+	unsigned char *pbase;
+	int i, j, k, numposes, meshvertices, meshtriangles, *bonecount, *vertbonecounts, count, *renderlist, *renderlistend, *outelements;
+	float modelradius, corner[2], *poses, *intexcoord2f, *outtexcoord2f, *bonepose;
+	zymvertex_t *verts, *vertdata;
+	zymscene_t *scene;
+	zymbone_t *bone;
+	char *shadername;
+	skinfile_t *skinfiles;
+	unsigned char *data;
+	msurface_t *surface;
 
-	pinmodel = (void *)buffer;
-	pbase = buffer;
+	pinmodel = (zymtype1header_t *)buffer;
+	pbase = (unsigned char *)buffer;
 	if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
-		Host_Error ("Mod_ZYMOTICMODEL_Load: %s is not a zymotic model\n");
+		Host_Error ("Mod_ZYMOTICMODEL_Load: %s is not a zymotic model", loadmodel->name);
 	if (BigLong(pinmodel->type) != 1)
-		Host_Error ("Mod_ZYMOTICMODEL_Load: only type 1 (skeletal pose) models are currently supported (name = %s)\n", loadmodel->name);
+		Host_Error ("Mod_ZYMOTICMODEL_Load: only type 1 (skeletal pose) models are currently supported (name = %s)", loadmodel->name);
 
 	loadmodel->type = mod_alias;
-	loadmodel->alias.aliastype = ALIASTYPE_ZYM;
-	loadmodel->DrawSky = NULL;
-	loadmodel->Draw = R_Model_Zymotic_Draw;
-	loadmodel->DrawFakeShadow = NULL;//R_Model_Zymotic_DrawFakeShadow;
-	loadmodel->DrawShadowVolume = NULL;//R_Model_Zymotic_DrawShadowVolume;
-	loadmodel->DrawLight = NULL;//R_Model_Zymotic_DrawLight;
+	loadmodel->flags = 0; // there are no flags on zym models
+	loadmodel->synctype = ST_RAND;
 
 	// byteswap header
 	pheader = pinmodel;
@@ -960,11 +1471,11 @@ void Mod_ZYMOTICMODEL_Load(model_t *mod, void *buffer)
 	pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
 	pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
 	pheader->radius = BigFloat(pinmodel->radius);
-	pheader->numverts = loadmodel->alias.zymnum_verts = BigLong(pinmodel->numverts);
-	pheader->numtris = loadmodel->alias.zymnum_tris = BigLong(pinmodel->numtris);
-	pheader->numshaders = loadmodel->alias.zymnum_shaders = BigLong(pinmodel->numshaders);
-	pheader->numbones = loadmodel->alias.zymnum_bones = BigLong(pinmodel->numbones);
-	pheader->numscenes = loadmodel->alias.zymnum_scenes = BigLong(pinmodel->numscenes);
+	pheader->numverts = BigLong(pinmodel->numverts);
+	pheader->numtris = BigLong(pinmodel->numtris);
+	pheader->numshaders = BigLong(pinmodel->numshaders);
+	pheader->numbones = BigLong(pinmodel->numbones);
+	pheader->numscenes = BigLong(pinmodel->numscenes);
 	pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
 	pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
 	pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
@@ -984,188 +1495,1086 @@ void Mod_ZYMOTICMODEL_Load(model_t *mod, void *buffer)
 	pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
 	pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
 
-	loadmodel->flags = 0; // there are no flags
+	if (pheader->numtris < 1 || pheader->numverts < 3 || pheader->numshaders < 1)
+	{
+		Con_Printf("%s has no geometry\n", loadmodel->name);
+		return;
+	}
+	if (pheader->numscenes < 1 || pheader->lump_poses.length < (int)sizeof(float[3][4]))
+	{
+		Con_Printf("%s has no animations\n", loadmodel->name);
+		return;
+	}
+
+	loadmodel->DrawSky = NULL;
+	loadmodel->Draw = R_Q1BSP_Draw;
+	loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
+	loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
+	loadmodel->DrawLight = R_Q1BSP_DrawLight;
+	loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
+
 	loadmodel->numframes = pheader->numscenes;
-	loadmodel->synctype = ST_SYNC;
-	//loadmodel->numtris = pheader->numtris;
-	//loadmodel->numverts = 0;
+	loadmodel->num_surfaces = pheader->numshaders;
 
-	{
-		unsigned int i;
-		float modelradius, corner[2];
-		// model bbox
-		modelradius = pheader->radius;
-		for (i = 0;i < 3;i++)
-		{
-			loadmodel->normalmins[i] = pheader->mins[i];
-			loadmodel->normalmaxs[i] = pheader->maxs[i];
-			loadmodel->rotatedmins[i] = -modelradius;
-			loadmodel->rotatedmaxs[i] = modelradius;
-		}
-		corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
-		corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
-		loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
-		if (loadmodel->yawmaxs[0] > modelradius)
-			loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
-		loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
-		loadmodel->yawmins[2] = loadmodel->normalmins[2];
-		loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
-		loadmodel->radius = modelradius;
-		loadmodel->radius2 = modelradius * modelradius;
-	}
-
-	{
-		// FIXME: add shaders, and make them switchable shader sets and...
-		loadmodel->skinscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t));
-		loadmodel->skinscenes[0].firstframe = 0;
-		loadmodel->skinscenes[0].framecount = 1;
-		loadmodel->skinscenes[0].loop = true;
-		loadmodel->skinscenes[0].framerate = 10;
+	skinfiles = Mod_LoadSkinFiles();
+	if (loadmodel->numskins < 1)
 		loadmodel->numskins = 1;
+
+	// make skinscenes for the skins (no groups)
+	loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
+	for (i = 0;i < loadmodel->numskins;i++)
+	{
+		loadmodel->skinscenes[i].firstframe = i;
+		loadmodel->skinscenes[i].framecount = 1;
+		loadmodel->skinscenes[i].loop = true;
+		loadmodel->skinscenes[i].framerate = 10;
 	}
 
+	// model bbox
+	modelradius = pheader->radius;
+	for (i = 0;i < 3;i++)
+	{
+		loadmodel->normalmins[i] = pheader->mins[i];
+		loadmodel->normalmaxs[i] = pheader->maxs[i];
+		loadmodel->rotatedmins[i] = -modelradius;
+		loadmodel->rotatedmaxs[i] = modelradius;
+	}
+	corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
+	corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
+	loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
+	if (loadmodel->yawmaxs[0] > modelradius)
+		loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
+	loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
+	loadmodel->yawmins[2] = loadmodel->normalmins[2];
+	loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
+	loadmodel->radius = modelradius;
+	loadmodel->radius2 = modelradius * modelradius;
+
 	// go through the lumps, swapping things
 
+	//zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
+	loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
+	scene = (zymscene_t *) (pheader->lump_scenes.start + pbase);
+	numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
+	for (i = 0;i < pheader->numscenes;i++)
 	{
-		int i, numposes;
-		zymscene_t *scene;
-	//	zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
-		loadmodel->animscenes = Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
-		scene = (void *) (pheader->lump_scenes.start + pbase);
-		numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
-		for (i = 0;i < pheader->numscenes;i++)
-		{
-			memcpy(loadmodel->animscenes[i].name, scene->name, 32);
-			loadmodel->animscenes[i].firstframe = BigLong(scene->start);
-			loadmodel->animscenes[i].framecount = BigLong(scene->length);
-			loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
-			loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
-			if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
-				Host_Error("Mod_ZYMOTICMODEL_Load: scene firstframe (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, numposes);
-			if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
-				Host_Error("Mod_ZYMOTICMODEL_Load: scene firstframe (%i) + framecount (%i) >= numposes (%i)\n", loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
-			if (loadmodel->animscenes[i].framerate < 0)
-				Host_Error("Mod_ZYMOTICMODEL_Load: scene framerate (%f) < 0\n", loadmodel->animscenes[i].framerate);
-			scene++;
-		}
+		memcpy(loadmodel->animscenes[i].name, scene->name, 32);
+		loadmodel->animscenes[i].firstframe = BigLong(scene->start);
+		loadmodel->animscenes[i].framecount = BigLong(scene->length);
+		loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
+		loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
+		if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
+			Host_Error("%s scene->firstframe (%i) >= numposes (%i)", loadmodel->name, loadmodel->animscenes[i].firstframe, numposes);
+		if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
+			Host_Error("%s scene->firstframe (%i) + framecount (%i) >= numposes (%i)", loadmodel->name, loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
+		if (loadmodel->animscenes[i].framerate < 0)
+			Host_Error("%s scene->framerate (%f) < 0", loadmodel->name, loadmodel->animscenes[i].framerate);
+		scene++;
+	}
+
+	//zymlump_t lump_bones; // zymbone_t bone[numbones];
+	loadmodel->num_bones = pheader->numbones;
+	loadmodel->data_bones = (aliasbone_t *)Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(aliasbone_t));
+	bone = (zymbone_t *) (pheader->lump_bones.start + pbase);
+	for (i = 0;i < pheader->numbones;i++)
+	{
+		memcpy(loadmodel->data_bones[i].name, bone[i].name, sizeof(bone[i].name));
+		loadmodel->data_bones[i].flags = BigLong(bone[i].flags);
+		loadmodel->data_bones[i].parent = BigLong(bone[i].parent);
+		if (loadmodel->data_bones[i].parent >= i)
+			Host_Error("%s bone[%i].parent >= %i", loadmodel->name, i, i);
+	}
+
+	//zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
+	vertbonecounts = (int *)Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
+	bonecount = (int *) (pheader->lump_vertbonecounts.start + pbase);
+	for (i = 0;i < pheader->numverts;i++)
+	{
+		vertbonecounts[i] = BigLong(bonecount[i]);
+		if (vertbonecounts[i] != 1)
+			Host_Error("%s bonecount[%i] != 1 (vertex weight support is impossible in this format)", loadmodel->name, i);
+	}
+
+	loadmodel->num_poses = pheader->lump_poses.length / sizeof(float[3][4]);
+
+	meshvertices = pheader->numverts;
+	meshtriangles = pheader->numtris;
+
+	loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
+	loadmodel->num_textures = loadmodel->num_surfaces;
+	data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + meshtriangles * sizeof(int[3]) + meshvertices * sizeof(float[14]) + meshvertices * sizeof(int[4]) + meshvertices * sizeof(float[4]) + loadmodel->num_poses * sizeof(float[36]));
+	loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
+	loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
+	loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
+	loadmodel->surfmesh.num_vertices = meshvertices;
+	loadmodel->surfmesh.num_triangles = meshtriangles;
+	loadmodel->surfmesh.data_element3i = (int *)data;data += meshtriangles * sizeof(int[3]);
+	loadmodel->surfmesh.data_neighbor3i = (int *)data;data += meshtriangles * sizeof(int[3]);
+	loadmodel->surfmesh.data_vertex3f = (float *)data;data += meshvertices * sizeof(float[3]);
+	loadmodel->surfmesh.data_svector3f = (float *)data;data += meshvertices * sizeof(float[3]);
+	loadmodel->surfmesh.data_tvector3f = (float *)data;data += meshvertices * sizeof(float[3]);
+	loadmodel->surfmesh.data_normal3f = (float *)data;data += meshvertices * sizeof(float[3]);
+	loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += meshvertices * sizeof(float[2]);
+	loadmodel->surfmesh.data_vertexweightindex4i = (int *)data;data += meshvertices * sizeof(int[4]);
+	loadmodel->surfmesh.data_vertexweightinfluence4f = (float *)data;data += meshvertices * sizeof(float[4]);
+	loadmodel->data_poses = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
+	loadmodel->data_basebonepose = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
+	loadmodel->data_baseboneposeinverse = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
+
+	//zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
+	poses = (float *) (pheader->lump_poses.start + pbase);
+	for (i = 0;i < pheader->lump_poses.length / 4;i++)
+		loadmodel->data_poses[i] = BigFloat(poses[i]);
+
+	//zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
+	verts = (zymvertex_t *)Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
+	vertdata = (zymvertex_t *) (pheader->lump_verts.start + pbase);
+	// reconstruct frame 0 matrices to allow reconstruction of the base mesh
+	// (converting from weight-blending skeletal animation to
+	//  deformation-based skeletal animation)
+	bonepose = (float *)Z_Malloc(loadmodel->num_bones * sizeof(float[12]));
+	for (i = 0;i < loadmodel->num_bones;i++)
+	{
+		const float *m = loadmodel->data_poses + i * 12;
+		if (loadmodel->data_bones[i].parent >= 0)
+			R_ConcatTransforms(bonepose + 12 * loadmodel->data_bones[i].parent, m, bonepose + 12 * i);
+		else
+			for (k = 0;k < 12;k++)
+				bonepose[12*i+k] = m[k];
 	}
+	for (j = 0;j < pheader->numverts;j++)
+	{
+		// this format really should have had a per vertexweight weight value...
+		// but since it does not, the weighting is completely ignored and
+		// only one weight is allowed per vertex
+		int boneindex = BigLong(vertdata[j].bonenum);
+		const float *m = bonepose + 12 * boneindex;
+		float relativeorigin[3];
+		relativeorigin[0] = BigFloat(vertdata[j].origin[0]);
+		relativeorigin[1] = BigFloat(vertdata[j].origin[1]);
+		relativeorigin[2] = BigFloat(vertdata[j].origin[2]);
+		// transform the vertex bone weight into the base mesh
+		loadmodel->surfmesh.data_vertex3f[j*3+0] = relativeorigin[0] * m[0] + relativeorigin[1] * m[1] + relativeorigin[2] * m[ 2] + m[ 3];
+		loadmodel->surfmesh.data_vertex3f[j*3+1] = relativeorigin[0] * m[4] + relativeorigin[1] * m[5] + relativeorigin[2] * m[ 6] + m[ 7];
+		loadmodel->surfmesh.data_vertex3f[j*3+2] = relativeorigin[0] * m[8] + relativeorigin[1] * m[9] + relativeorigin[2] * m[10] + m[11];
+		// store the weight as the primary weight on this vertex
+		loadmodel->surfmesh.data_vertexweightindex4i[j*4+0] = boneindex;
+		loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+0] = 1;
+	}
+	Z_Free(bonepose);
+	// normals and tangents are calculated after elements are loaded
 
+	//zymlump_t lump_texcoords; // float texcoords[numvertices][2];
+	outtexcoord2f = loadmodel->surfmesh.data_texcoordtexture2f;
+	intexcoord2f = (float *) (pheader->lump_texcoords.start + pbase);
+	for (i = 0;i < pheader->numverts;i++)
 	{
-		int i;
-		float *poses;
-	//	zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
-		loadmodel->alias.zymdata_poses = Mem_Alloc(loadmodel->mempool, pheader->lump_poses.length);
-		poses = (void *) (pheader->lump_poses.start + pbase);
-		for (i = 0;i < pheader->lump_poses.length / 4;i++)
-			loadmodel->alias.zymdata_poses[i] = BigFloat(poses[i]);
+		outtexcoord2f[i*2+0] = BigFloat(intexcoord2f[i*2+0]);
+		// flip T coordinate for OpenGL
+		outtexcoord2f[i*2+1] = 1 - BigFloat(intexcoord2f[i*2+1]);
 	}
 
+	//zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
+	//loadmodel->alias.zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
+	//memcpy(loadmodel->alias.zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
+
+	//zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
+	//zymlump_t lump_render; // int renderlist[rendersize]; // sorted by shader with run lengths (int count), shaders are sequentially used, each run can be used with glDrawElements (each triangle is 3 int indices)
+	// byteswap, validate, and swap winding order of tris
+	count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
+	if (pheader->lump_render.length != count)
+		Host_Error("%s renderlist is wrong size (%i bytes, should be %i bytes)", loadmodel->name, pheader->lump_render.length, count);
+	renderlist = (int *) (pheader->lump_render.start + pbase);
+	renderlistend = (int *) ((unsigned char *) renderlist + pheader->lump_render.length);
+	meshtriangles = 0;
+	for (i = 0;i < loadmodel->num_surfaces;i++)
 	{
-		int i;
-		zymbone_t *bone;
-	//	zymlump_t lump_bones; // zymbone_t bone[numbones];
-		loadmodel->alias.zymdata_bones = Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(zymbone_t));
-		bone = (void *) (pheader->lump_bones.start + pbase);
-		for (i = 0;i < pheader->numbones;i++)
+		int firstvertex, lastvertex;
+		if (renderlist >= renderlistend)
+			Host_Error("%s corrupt renderlist (wrong size)", loadmodel->name);
+		count = BigLong(*renderlist);renderlist++;
+		if (renderlist + count * 3 > renderlistend || (i == pheader->numshaders - 1 && renderlist + count * 3 != renderlistend))
+			Host_Error("%s corrupt renderlist (wrong size)", loadmodel->name);
+
+		loadmodel->surfacelist[i] = i;
+		surface = loadmodel->data_surfaces + i;
+		surface->texture = loadmodel->data_textures + i;
+		surface->num_firsttriangle = meshtriangles;
+		surface->num_triangles = count;
+		meshtriangles += surface->num_triangles;
+
+		// load the elements
+		outelements = loadmodel->surfmesh.data_element3i + surface->num_firsttriangle * 3;
+		for (j = 0;j < surface->num_triangles;j++, renderlist += 3)
+		{
+			outelements[j*3+2] = BigLong(renderlist[0]);
+			outelements[j*3+1] = BigLong(renderlist[1]);
+			outelements[j*3+0] = BigLong(renderlist[2]);
+		}
+		// validate the elements and find the used vertex range
+		firstvertex = meshvertices;
+		lastvertex = 0;
+		for (j = 0;j < surface->num_triangles * 3;j++)
 		{
-			memcpy(loadmodel->alias.zymdata_bones[i].name, bone[i].name, sizeof(bone[i].name));
-			loadmodel->alias.zymdata_bones[i].flags = BigLong(bone[i].flags);
-			loadmodel->alias.zymdata_bones[i].parent = BigLong(bone[i].parent);
-			if (loadmodel->alias.zymdata_bones[i].parent >= i)
-				Host_Error("Mod_ZYMOTICMODEL_Load: bone[%i].parent >= %i in %s\n", i, i, loadmodel->name);
+			if ((unsigned int)outelements[j] >= (unsigned int)meshvertices)
+				Host_Error("%s corrupt renderlist (out of bounds index)", loadmodel->name);
+			firstvertex = min(firstvertex, outelements[j]);
+			lastvertex = max(lastvertex, outelements[j]);
 		}
+		surface->num_firstvertex = firstvertex;
+		surface->num_vertices = lastvertex + 1 - firstvertex;
+
+		// since zym models do not have named sections, reuse their shader
+		// name as the section name
+		shadername = (char *) (pheader->lump_shaders.start + pbase) + i * 32;
+		if (shadername[0])
+			Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + i, skinfiles, shadername, shadername);
+		else
+			for (j = 0;j < loadmodel->numskins;j++)
+				Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i + j * loadmodel->num_surfaces, NULL);
+	}
+	Mod_FreeSkinFiles(skinfiles);
+	Mem_Free(vertbonecounts);
+	Mem_Free(verts);
+
+	// compute all the mesh information that was not loaded from the file
+	Mod_ValidateElements(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles, 0, loadmodel->surfmesh.num_vertices, __FILE__, __LINE__);
+	Mod_BuildBaseBonePoses();
+	Mod_BuildNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_normal3f, true);
+	Mod_BuildTextureVectorsFromNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, true);
+	Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
+
+	loadmodel->surfmesh.isanimated = loadmodel->numframes > 1 || loadmodel->animscenes[0].framecount > 1;
+}
+
+void Mod_DARKPLACESMODEL_Load(model_t *mod, void *buffer, void *bufferend)
+{
+	dpmheader_t *pheader;
+	dpmframe_t *frame;
+	dpmbone_t *bone;
+	dpmmesh_t *dpmmesh;
+	unsigned char *pbase;
+	int i, j, k, meshvertices, meshtriangles;
+	skinfile_t *skinfiles;
+	unsigned char *data;
+	float *bonepose;
+
+	pheader = (dpmheader_t *)buffer;
+	pbase = (unsigned char *)buffer;
+	if (memcmp(pheader->id, "DARKPLACESMODEL\0", 16))
+		Host_Error ("Mod_DARKPLACESMODEL_Load: %s is not a darkplaces model", loadmodel->name);
+	if (BigLong(pheader->type) != 2)
+		Host_Error ("Mod_DARKPLACESMODEL_Load: only type 2 (hierarchical skeletal pose) models are currently supported (name = %s)", loadmodel->name);
+
+	loadmodel->type = mod_alias;
+	loadmodel->flags = 0; // there are no flags on zym models
+	loadmodel->synctype = ST_RAND;
+
+	// byteswap header
+	pheader->type = BigLong(pheader->type);
+	pheader->filesize = BigLong(pheader->filesize);
+	pheader->mins[0] = BigFloat(pheader->mins[0]);
+	pheader->mins[1] = BigFloat(pheader->mins[1]);
+	pheader->mins[2] = BigFloat(pheader->mins[2]);
+	pheader->maxs[0] = BigFloat(pheader->maxs[0]);
+	pheader->maxs[1] = BigFloat(pheader->maxs[1]);
+	pheader->maxs[2] = BigFloat(pheader->maxs[2]);
+	pheader->yawradius = BigFloat(pheader->yawradius);
+	pheader->allradius = BigFloat(pheader->allradius);
+	pheader->num_bones = BigLong(pheader->num_bones);
+	pheader->num_meshs = BigLong(pheader->num_meshs);
+	pheader->num_frames = BigLong(pheader->num_frames);
+	pheader->ofs_bones = BigLong(pheader->ofs_bones);
+	pheader->ofs_meshs = BigLong(pheader->ofs_meshs);
+	pheader->ofs_frames = BigLong(pheader->ofs_frames);
+
+	if (pheader->num_bones < 1 || pheader->num_meshs < 1)
+	{
+		Con_Printf("%s has no geometry\n", loadmodel->name);
+		return;
+	}
+	if (pheader->num_frames < 1)
+	{
+		Con_Printf("%s has no frames\n", loadmodel->name);
+		return;
+	}
+
+	loadmodel->DrawSky = NULL;
+	loadmodel->Draw = R_Q1BSP_Draw;
+	loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
+	loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
+	loadmodel->DrawLight = R_Q1BSP_DrawLight;
+	loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
+
+	// model bbox
+	for (i = 0;i < 3;i++)
+	{
+		loadmodel->normalmins[i] = pheader->mins[i];
+		loadmodel->normalmaxs[i] = pheader->maxs[i];
+		loadmodel->yawmins[i] = i != 2 ? -pheader->yawradius : pheader->mins[i];
+		loadmodel->yawmaxs[i] = i != 2 ? pheader->yawradius : pheader->maxs[i];
+		loadmodel->rotatedmins[i] = -pheader->allradius;
+		loadmodel->rotatedmaxs[i] = pheader->allradius;
+	}
+	loadmodel->radius = pheader->allradius;
+	loadmodel->radius2 = pheader->allradius * pheader->allradius;
+
+	// load external .skin files if present
+	skinfiles = Mod_LoadSkinFiles();
+	if (loadmodel->numskins < 1)
+		loadmodel->numskins = 1;
+
+	meshvertices = 0;
+	meshtriangles = 0;
+
+	// gather combined statistics from the meshes
+	dpmmesh = (dpmmesh_t *) (pbase + pheader->ofs_meshs);
+	for (i = 0;i < (int)pheader->num_meshs;i++)
+	{
+		int numverts = BigLong(dpmmesh->num_verts);
+		meshvertices += numverts;;
+		meshtriangles += BigLong(dpmmesh->num_tris);
+		dpmmesh++;
 	}
 
+	loadmodel->numframes = pheader->num_frames;
+	loadmodel->num_bones = pheader->num_bones;
+	loadmodel->num_poses = loadmodel->num_bones * loadmodel->numframes;
+	loadmodel->num_textures = loadmodel->nummodelsurfaces = loadmodel->num_surfaces = pheader->num_meshs;
+	// do most allocations as one merged chunk
+	data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + meshtriangles * sizeof(int[3]) + meshvertices * (sizeof(float[14]) + sizeof(int[4]) + sizeof(float[4])) + loadmodel->num_poses * sizeof(float[36]) + loadmodel->numskins * sizeof(animscene_t) + loadmodel->num_bones * sizeof(aliasbone_t) + loadmodel->numframes * sizeof(animscene_t));
+	loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
+	loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
+	loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
+	loadmodel->surfmesh.num_vertices = meshvertices;
+	loadmodel->surfmesh.num_triangles = meshtriangles;
+	loadmodel->surfmesh.data_element3i = (int *)data;data += meshtriangles * sizeof(int[3]);
+	loadmodel->surfmesh.data_neighbor3i = (int *)data;data += meshtriangles * sizeof(int[3]);
+	loadmodel->surfmesh.data_vertex3f = (float *)data;data += meshvertices * sizeof(float[3]);
+	loadmodel->surfmesh.data_svector3f = (float *)data;data += meshvertices * sizeof(float[3]);
+	loadmodel->surfmesh.data_tvector3f = (float *)data;data += meshvertices * sizeof(float[3]);
+	loadmodel->surfmesh.data_normal3f = (float *)data;data += meshvertices * sizeof(float[3]);
+	loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += meshvertices * sizeof(float[2]);
+	loadmodel->surfmesh.data_vertexweightindex4i = (int *)data;data += meshvertices * sizeof(int[4]);
+	loadmodel->surfmesh.data_vertexweightinfluence4f = (float *)data;data += meshvertices * sizeof(float[4]);
+	loadmodel->data_poses = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
+	loadmodel->data_basebonepose = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
+	loadmodel->data_baseboneposeinverse = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
+	loadmodel->skinscenes = (animscene_t *)data;data += loadmodel->numskins * sizeof(animscene_t);
+	loadmodel->data_bones = (aliasbone_t *)data;data += loadmodel->num_bones * sizeof(aliasbone_t);
+	loadmodel->animscenes = (animscene_t *)data;data += loadmodel->numframes * sizeof(animscene_t);
+
+	for (i = 0;i < loadmodel->numskins;i++)
+	{
+		loadmodel->skinscenes[i].firstframe = i;
+		loadmodel->skinscenes[i].framecount = 1;
+		loadmodel->skinscenes[i].loop = true;
+		loadmodel->skinscenes[i].framerate = 10;
+	}
+
+	// load the bone info
+	bone = (dpmbone_t *) (pbase + pheader->ofs_bones);
+	for (i = 0;i < loadmodel->num_bones;i++)
+	{
+		memcpy(loadmodel->data_bones[i].name, bone[i].name, sizeof(bone[i].name));
+		loadmodel->data_bones[i].flags = BigLong(bone[i].flags);
+		loadmodel->data_bones[i].parent = BigLong(bone[i].parent);
+		if (loadmodel->data_bones[i].parent >= i)
+			Host_Error("%s bone[%i].parent >= %i", loadmodel->name, i, i);
+	}
+
+	// load the frames
+	frame = (dpmframe_t *) (pbase + pheader->ofs_frames);
+	for (i = 0;i < loadmodel->numframes;i++)
+	{
+		const float *poses;
+		memcpy(loadmodel->animscenes[i].name, frame->name, sizeof(frame->name));
+		loadmodel->animscenes[i].firstframe = i;
+		loadmodel->animscenes[i].framecount = 1;
+		loadmodel->animscenes[i].loop = true;
+		loadmodel->animscenes[i].framerate = 10;
+		// load the bone poses for this frame
+		poses = (float *) (pbase + BigLong(frame->ofs_bonepositions));
+		for (j = 0;j < loadmodel->num_bones*12;j++)
+			loadmodel->data_poses[i * loadmodel->num_bones*12 + j] = BigFloat(poses[j]);
+		// stuff not processed here: mins, maxs, yawradius, allradius
+		frame++;
+	}
+
+	// load the meshes now
+	dpmmesh = (dpmmesh_t *) (pbase + pheader->ofs_meshs);
+	meshvertices = 0;
+	meshtriangles = 0;
+	// reconstruct frame 0 matrices to allow reconstruction of the base mesh
+	// (converting from weight-blending skeletal animation to
+	//  deformation-based skeletal animation)
+	bonepose = (float *)Z_Malloc(loadmodel->num_bones * sizeof(float[12]));
+	for (i = 0;i < loadmodel->num_bones;i++)
+	{
+		const float *m = loadmodel->data_poses + i * 12;
+		if (loadmodel->data_bones[i].parent >= 0)
+			R_ConcatTransforms(bonepose + 12 * loadmodel->data_bones[i].parent, m, bonepose + 12 * i);
+		else
+			for (k = 0;k < 12;k++)
+				bonepose[12*i+k] = m[k];
+	}
+	for (i = 0;i < loadmodel->num_surfaces;i++, dpmmesh++)
 	{
-		int i, *bonecount;
-	//	zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
-		loadmodel->alias.zymdata_vertbonecounts = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
-		bonecount = (void *) (pheader->lump_vertbonecounts.start + pbase);
-		for (i = 0;i < pheader->numverts;i++)
+		const int *inelements;
+		int *outelements;
+		const float *intexcoord;
+		msurface_t *surface;
+
+		loadmodel->surfacelist[i] = i;
+		surface = loadmodel->data_surfaces + i;
+		surface->texture = loadmodel->data_textures + i;
+		surface->num_firsttriangle = meshtriangles;
+		surface->num_triangles = BigLong(dpmmesh->num_tris);
+		surface->num_firstvertex = meshvertices;
+		surface->num_vertices = BigLong(dpmmesh->num_verts);
+		meshvertices += surface->num_vertices;
+		meshtriangles += surface->num_triangles;
+
+		inelements = (int *) (pbase + BigLong(dpmmesh->ofs_indices));
+		outelements = loadmodel->surfmesh.data_element3i + surface->num_firsttriangle * 3;
+		for (j = 0;j < surface->num_triangles;j++)
 		{
-			loadmodel->alias.zymdata_vertbonecounts[i] = BigLong(bonecount[i]);
-			if (loadmodel->alias.zymdata_vertbonecounts[i] < 1)
-				Host_Error("Mod_ZYMOTICMODEL_Load: bone vertex count < 1 in %s\n", loadmodel->name);
+			// swap element order to flip triangles, because Quake uses clockwise (rare) and dpm uses counterclockwise (standard)
+			outelements[0] = surface->num_firstvertex + BigLong(inelements[2]);
+			outelements[1] = surface->num_firstvertex + BigLong(inelements[1]);
+			outelements[2] = surface->num_firstvertex + BigLong(inelements[0]);
+			inelements += 3;
+			outelements += 3;
 		}
+
+		intexcoord = (float *) (pbase + BigLong(dpmmesh->ofs_texcoords));
+		for (j = 0;j < surface->num_vertices*2;j++)
+			loadmodel->surfmesh.data_texcoordtexture2f[j + surface->num_firstvertex * 2] = BigFloat(intexcoord[j]);
+
+		data = (unsigned char *) (pbase + BigLong(dpmmesh->ofs_verts));
+		for (j = surface->num_firstvertex;j < surface->num_firstvertex + surface->num_vertices;j++)
+		{
+			float sum;
+			int l;
+			int numweights = BigLong(((dpmvertex_t *)data)->numbones);
+			data += sizeof(dpmvertex_t);
+			for (k = 0;k < numweights;k++)
+			{
+				const dpmbonevert_t *vert = (dpmbonevert_t *) data;
+				int boneindex = BigLong(vert->bonenum);
+				const float *m = bonepose + 12 * boneindex;
+				float influence = BigFloat(vert->influence);
+				float relativeorigin[3], relativenormal[3];
+				relativeorigin[0] = BigFloat(vert->origin[0]);
+				relativeorigin[1] = BigFloat(vert->origin[1]);
+				relativeorigin[2] = BigFloat(vert->origin[2]);
+				relativenormal[0] = BigFloat(vert->normal[0]);
+				relativenormal[1] = BigFloat(vert->normal[1]);
+				relativenormal[2] = BigFloat(vert->normal[2]);
+				// blend the vertex bone weights into the base mesh
+				loadmodel->surfmesh.data_vertex3f[j*3+0] += relativeorigin[0] * m[0] + relativeorigin[1] * m[1] + relativeorigin[2] * m[ 2] + influence * m[ 3];
+				loadmodel->surfmesh.data_vertex3f[j*3+1] += relativeorigin[0] * m[4] + relativeorigin[1] * m[5] + relativeorigin[2] * m[ 6] + influence * m[ 7];
+				loadmodel->surfmesh.data_vertex3f[j*3+2] += relativeorigin[0] * m[8] + relativeorigin[1] * m[9] + relativeorigin[2] * m[10] + influence * m[11];
+				loadmodel->surfmesh.data_normal3f[j*3+0] += relativenormal[0] * m[0] + relativenormal[1] * m[1] + relativenormal[2] * m[ 2];
+				loadmodel->surfmesh.data_normal3f[j*3+1] += relativenormal[0] * m[4] + relativenormal[1] * m[5] + relativenormal[2] * m[ 6];
+				loadmodel->surfmesh.data_normal3f[j*3+2] += relativenormal[0] * m[8] + relativenormal[1] * m[9] + relativenormal[2] * m[10];
+				if (!k)
+				{
+					// store the first (and often only) weight
+					loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+0] = influence;
+					loadmodel->surfmesh.data_vertexweightindex4i[j*4+0] = boneindex;
+				}
+				else
+				{
+					// sort the new weight into this vertex's weight table
+					// (which only accepts up to 4 bones per vertex)
+					for (l = 0;l < 4;l++)
+					{
+						if (loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+l] < influence)
+						{
+							// move weaker influence weights out of the way first
+							int l2;
+							for (l2 = 3;l2 > l;l2--)
+							{
+								loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+l2] = loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+l2-1];
+								loadmodel->surfmesh.data_vertexweightindex4i[j*4+l2] = loadmodel->surfmesh.data_vertexweightindex4i[j*4+l2-1];
+							}
+							// store the new weight
+							loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+l] = influence;
+							loadmodel->surfmesh.data_vertexweightindex4i[j*4+l] = boneindex;
+							break;
+						}
+					}
+				}
+				data += sizeof(dpmbonevert_t);
+			}
+			sum = 0;
+			for (l = 0;l < 4;l++)
+				sum += loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+l];
+			if (sum && fabs(sum - 1) > (1.0f / 256.0f))
+			{
+				float f = 1.0f / sum;
+				for (l = 0;l < 4;l++)
+					loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+l] *= f;
+			}
+		}
+
+		// since dpm models do not have named sections, reuse their shader name as the section name
+		if (dpmmesh->shadername[0])
+			Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + i, skinfiles, dpmmesh->shadername, dpmmesh->shadername);
+		else
+			for (j = 0;j < loadmodel->numskins;j++)
+				Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i + j * loadmodel->num_surfaces, NULL);
+
+		Mod_ValidateElements(loadmodel->surfmesh.data_element3i + surface->num_firsttriangle * 3, surface->num_triangles, surface->num_firstvertex, surface->num_vertices, __FILE__, __LINE__);
 	}
+	Z_Free(bonepose);
+	Mod_FreeSkinFiles(skinfiles);
+
+	// compute all the mesh information that was not loaded from the file
+	Mod_BuildBaseBonePoses();
+	Mod_BuildTextureVectorsFromNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, true);
+	Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
+
+	loadmodel->surfmesh.isanimated = loadmodel->numframes > 1 || loadmodel->animscenes[0].framecount > 1;
+}
+
+// no idea why PSK/PSA files contain weird quaternions but they do...
+#define PSKQUATNEGATIONS
+void Mod_PSKMODEL_Load(model_t *mod, void *buffer, void *bufferend)
+{
+	int i, j, index, version, recordsize, numrecords, meshvertices, meshtriangles;
+	int numpnts, numvtxw, numfaces, nummatts, numbones, numrawweights, numanimbones, numanims, numanimkeys;
+	fs_offset_t filesize;
+	pskpnts_t *pnts;
+	pskvtxw_t *vtxw;
+	pskface_t *faces;
+	pskmatt_t *matts;
+	pskboneinfo_t *bones;
+	pskrawweights_t *rawweights;
+	pskboneinfo_t *animbones;
+	pskaniminfo_t *anims;
+	pskanimkeys_t *animkeys;
+	void *animfilebuffer, *animbuffer, *animbufferend;
+	unsigned char *data;
+	pskchunk_t *pchunk;
+	skinfile_t *skinfiles;
+	char animname[MAX_QPATH];
 
+	pchunk = (pskchunk_t *)buffer;
+	if (strcmp(pchunk->id, "ACTRHEAD"))
+		Host_Error ("Mod_PSKMODEL_Load: %s is not an Unreal Engine ActorX (.psk + .psa) model", loadmodel->name);
+
+	loadmodel->type = mod_alias;
+	loadmodel->DrawSky = NULL;
+	loadmodel->Draw = R_Q1BSP_Draw;
+	loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
+	loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
+	loadmodel->DrawLight = R_Q1BSP_DrawLight;
+	loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
+	loadmodel->flags = 0; // there are no flags on zym models
+	loadmodel->synctype = ST_RAND;
+
+	FS_StripExtension(loadmodel->name, animname, sizeof(animname));
+	strlcat(animname, ".psa", sizeof(animname));
+	animbuffer = animfilebuffer = FS_LoadFile(animname, loadmodel->mempool, false, &filesize);
+	animbufferend = (void *)((unsigned char*)animbuffer + (int)filesize);
+	if (animbuffer == NULL)
+		Host_Error("%s: can't find .psa file (%s)", loadmodel->name, animname);
+
+	numpnts = 0;
+	pnts = NULL;
+	numvtxw = 0;
+	vtxw = NULL;
+	numfaces = 0;
+	faces = NULL;
+	nummatts = 0;
+	matts = NULL;
+	numbones = 0;
+	bones = NULL;
+	numrawweights = 0;
+	rawweights = NULL;
+	numanims = 0;
+	anims = NULL;
+	numanimkeys = 0;
+	animkeys = NULL;
+
+	while (buffer < bufferend)
 	{
-		int i;
-		zymvertex_t *vertdata;
-	//	zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
-		loadmodel->alias.zymdata_verts = Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
-		vertdata = (void *) (pheader->lump_verts.start + pbase);
-		for (i = 0;i < pheader->lump_verts.length / (int) sizeof(zymvertex_t);i++)
+		pchunk = (pskchunk_t *)buffer;
+		buffer = (void *)((unsigned char *)buffer + sizeof(pskchunk_t));
+		version = LittleLong(pchunk->version);
+		recordsize = LittleLong(pchunk->recordsize);
+		numrecords = LittleLong(pchunk->numrecords);
+		if (developer.integer >= 100)
+			Con_Printf("%s: %s %x: %i * %i = %i\n", loadmodel->name, pchunk->id, version, recordsize, numrecords, recordsize * numrecords);
+		if (version != 0x1e83b9 && version != 0x1e9179 && version != 0x2e && version != 0x12f2bc && version != 0x12f2f0)
+			Con_Printf ("%s: chunk %s has unknown version %x (0x1e83b9, 0x1e9179, 0x2e, 0x12f2bc, 0x12f2f0 are currently supported), trying to load anyway!\n", loadmodel->name, pchunk->id, version);
+		if (!strcmp(pchunk->id, "ACTRHEAD"))
+		{
+			// nothing to do
+		}
+		else if (!strcmp(pchunk->id, "PNTS0000"))
+		{
+			pskpnts_t *p;
+			if (recordsize != sizeof(*p))
+				Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
+			// byteswap in place and keep the pointer
+			numpnts = numrecords;
+			pnts = (pskpnts_t *)buffer;
+			for (index = 0, p = (pskpnts_t *)buffer;index < numrecords;index++, p++)
+			{
+				p->origin[0] = LittleFloat(p->origin[0]);
+				p->origin[1] = LittleFloat(p->origin[1]);
+				p->origin[2] = LittleFloat(p->origin[2]);
+			}
+			buffer = p;
+		}
+		else if (!strcmp(pchunk->id, "VTXW0000"))
+		{
+			pskvtxw_t *p;
+			if (recordsize != sizeof(*p))
+				Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
+			// byteswap in place and keep the pointer
+			numvtxw = numrecords;
+			vtxw = (pskvtxw_t *)buffer;
+			for (index = 0, p = (pskvtxw_t *)buffer;index < numrecords;index++, p++)
+			{
+				p->pntsindex = LittleShort(p->pntsindex);
+				p->texcoord[0] = LittleFloat(p->texcoord[0]);
+				p->texcoord[1] = LittleFloat(p->texcoord[1]);
+				if (p->pntsindex >= numpnts)
+				{
+					Con_Printf("%s: vtxw->pntsindex %i >= numpnts %i\n", loadmodel->name, p->pntsindex, numpnts);
+					p->pntsindex = 0;
+				}
+			}
+			buffer = p;
+		}
+		else if (!strcmp(pchunk->id, "FACE0000"))
+		{
+			pskface_t *p;
+			if (recordsize != sizeof(*p))
+				Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
+			// byteswap in place and keep the pointer
+			numfaces = numrecords;
+			faces = (pskface_t *)buffer;
+			for (index = 0, p = (pskface_t *)buffer;index < numrecords;index++, p++)
+			{
+				p->vtxwindex[0] = LittleShort(p->vtxwindex[0]);
+				p->vtxwindex[1] = LittleShort(p->vtxwindex[1]);
+				p->vtxwindex[2] = LittleShort(p->vtxwindex[2]);
+				p->group = LittleLong(p->group);
+				if (p->vtxwindex[0] >= numvtxw)
+				{
+					Con_Printf("%s: face->vtxwindex[0] %i >= numvtxw %i\n", loadmodel->name, p->vtxwindex[0], numvtxw);
+					p->vtxwindex[0] = 0;
+				}
+				if (p->vtxwindex[1] >= numvtxw)
+				{
+					Con_Printf("%s: face->vtxwindex[1] %i >= numvtxw %i\n", loadmodel->name, p->vtxwindex[1], numvtxw);
+					p->vtxwindex[1] = 0;
+				}
+				if (p->vtxwindex[2] >= numvtxw)
+				{
+					Con_Printf("%s: face->vtxwindex[2] %i >= numvtxw %i\n", loadmodel->name, p->vtxwindex[2], numvtxw);
+					p->vtxwindex[2] = 0;
+				}
+			}
+			buffer = p;
+		}
+		else if (!strcmp(pchunk->id, "MATT0000"))
+		{
+			pskmatt_t *p;
+			if (recordsize != sizeof(*p))
+				Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
+			// byteswap in place and keep the pointer
+			nummatts = numrecords;
+			matts = (pskmatt_t *)buffer;
+			for (index = 0, p = (pskmatt_t *)buffer;index < numrecords;index++, p++)
+			{
+				// nothing to do
+			}
+			buffer = p;
+		}
+		else if (!strcmp(pchunk->id, "REFSKELT"))
 		{
-			loadmodel->alias.zymdata_verts[i].bonenum = BigLong(vertdata[i].bonenum);
-			loadmodel->alias.zymdata_verts[i].origin[0] = BigFloat(vertdata[i].origin[0]);
-			loadmodel->alias.zymdata_verts[i].origin[1] = BigFloat(vertdata[i].origin[1]);
-			loadmodel->alias.zymdata_verts[i].origin[2] = BigFloat(vertdata[i].origin[2]);
+			pskboneinfo_t *p;
+			if (recordsize != sizeof(*p))
+				Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
+			// byteswap in place and keep the pointer
+			numbones = numrecords;
+			bones = (pskboneinfo_t *)buffer;
+			for (index = 0, p = (pskboneinfo_t *)buffer;index < numrecords;index++, p++)
+			{
+				p->numchildren = LittleLong(p->numchildren);
+				p->parent = LittleLong(p->parent);
+				p->basepose.quat[0] = LittleFloat(p->basepose.quat[0]);
+				p->basepose.quat[1] = LittleFloat(p->basepose.quat[1]);
+				p->basepose.quat[2] = LittleFloat(p->basepose.quat[2]);
+				p->basepose.quat[3] = LittleFloat(p->basepose.quat[3]);
+				p->basepose.origin[0] = LittleFloat(p->basepose.origin[0]);
+				p->basepose.origin[1] = LittleFloat(p->basepose.origin[1]);
+				p->basepose.origin[2] = LittleFloat(p->basepose.origin[2]);
+				p->basepose.unknown = LittleFloat(p->basepose.unknown);
+				p->basepose.size[0] = LittleFloat(p->basepose.size[0]);
+				p->basepose.size[1] = LittleFloat(p->basepose.size[1]);
+				p->basepose.size[2] = LittleFloat(p->basepose.size[2]);
+#ifdef PSKQUATNEGATIONS
+				if (index)
+				{
+					p->basepose.quat[0] *= -1;
+					p->basepose.quat[1] *= -1;
+					p->basepose.quat[2] *= -1;
+				}
+				else
+				{
+					p->basepose.quat[0] *=  1;
+					p->basepose.quat[1] *= -1;
+					p->basepose.quat[2] *=  1;
+				}
+#endif
+				if (p->parent < 0 || p->parent >= numbones)
+				{
+					Con_Printf("%s: bone->parent %i >= numbones %i\n", loadmodel->name, p->parent, numbones);
+					p->parent = 0;
+				}
+			}
+			buffer = p;
+		}
+		else if (!strcmp(pchunk->id, "RAWWEIGHTS"))
+		{
+			pskrawweights_t *p;
+			if (recordsize != sizeof(*p))
+				Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
+			// byteswap in place and keep the pointer
+			numrawweights = numrecords;
+			rawweights = (pskrawweights_t *)buffer;
+			for (index = 0, p = (pskrawweights_t *)buffer;index < numrecords;index++, p++)
+			{
+				p->weight = LittleFloat(p->weight);
+				p->pntsindex = LittleLong(p->pntsindex);
+				p->boneindex = LittleLong(p->boneindex);
+				if (p->pntsindex < 0 || p->pntsindex >= numpnts)
+				{
+					Con_Printf("%s: weight->pntsindex %i >= numpnts %i\n", loadmodel->name, p->pntsindex, numpnts);
+					p->pntsindex = 0;
+				}
+				if (p->boneindex < 0 || p->boneindex >= numbones)
+				{
+					Con_Printf("%s: weight->boneindex %i >= numbones %i\n", loadmodel->name, p->boneindex, numbones);
+					p->boneindex = 0;
+				}
+			}
+			buffer = p;
 		}
 	}
 
+	while (animbuffer < animbufferend)
 	{
-		int i;
-		float *intexcoord2f, *outtexcoord2f;
-	//	zymlump_t lump_texcoords; // float texcoords[numvertices][2];
-		loadmodel->alias.zymdata_texcoords = outtexcoord2f = Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(float[2]));
-		intexcoord2f = (void *) (pheader->lump_texcoords.start + pbase);
-		for (i = 0;i < pheader->numverts;i++)
+		pchunk = (pskchunk_t *)animbuffer;
+		animbuffer = (void *)((unsigned char *)animbuffer + sizeof(pskchunk_t));
+		version = LittleLong(pchunk->version);
+		recordsize = LittleLong(pchunk->recordsize);
+		numrecords = LittleLong(pchunk->numrecords);
+		if (developer.integer >= 100)
+			Con_Printf("%s: %s %x: %i * %i = %i\n", animname, pchunk->id, version, recordsize, numrecords, recordsize * numrecords);
+		if (version != 0x1e83b9 && version != 0x1e9179 && version != 0x2e && version != 0x12f2bc && version != 0x12f2f0)
+			Con_Printf ("%s: chunk %s has unknown version %x (0x1e83b9, 0x1e9179, 0x2e, 0x12f2bc, 0x12f2f0 are currently supported), trying to load anyway!\n", animname, pchunk->id, version);
+		if (!strcmp(pchunk->id, "ANIMHEAD"))
 		{
-			outtexcoord2f[i*2+0] = BigFloat(intexcoord2f[i*2+0]);
-			// flip T coordinate for OpenGL
-			outtexcoord2f[i*2+1] = 1 - BigFloat(intexcoord2f[i*2+1]);
+			// nothing to do
 		}
+		else if (!strcmp(pchunk->id, "BONENAMES"))
+		{
+			pskboneinfo_t *p;
+			if (recordsize != sizeof(*p))
+				Host_Error("%s: %s has unsupported recordsize", animname, pchunk->id);
+			// byteswap in place and keep the pointer
+			numanimbones = numrecords;
+			animbones = (pskboneinfo_t *)animbuffer;
+			// NOTE: supposedly psa does not need to match the psk model, the
+			// bones missing from the psa would simply use their base
+			// positions from the psk, but this is hard for me to implement
+			// and people can easily make animations that match.
+			if (numanimbones != numbones)
+				Host_Error("%s: this loader only supports animations with the same bones as the mesh", loadmodel->name);
+			for (index = 0, p = (pskboneinfo_t *)animbuffer;index < numrecords;index++, p++)
+			{
+				p->numchildren = LittleLong(p->numchildren);
+				p->parent = LittleLong(p->parent);
+				p->basepose.quat[0] = LittleFloat(p->basepose.quat[0]);
+				p->basepose.quat[1] = LittleFloat(p->basepose.quat[1]);
+				p->basepose.quat[2] = LittleFloat(p->basepose.quat[2]);
+				p->basepose.quat[3] = LittleFloat(p->basepose.quat[3]);
+				p->basepose.origin[0] = LittleFloat(p->basepose.origin[0]);
+				p->basepose.origin[1] = LittleFloat(p->basepose.origin[1]);
+				p->basepose.origin[2] = LittleFloat(p->basepose.origin[2]);
+				p->basepose.unknown = LittleFloat(p->basepose.unknown);
+				p->basepose.size[0] = LittleFloat(p->basepose.size[0]);
+				p->basepose.size[1] = LittleFloat(p->basepose.size[1]);
+				p->basepose.size[2] = LittleFloat(p->basepose.size[2]);
+#ifdef PSKQUATNEGATIONS
+				if (index)
+				{
+					p->basepose.quat[0] *= -1;
+					p->basepose.quat[1] *= -1;
+					p->basepose.quat[2] *= -1;
+				}
+				else
+				{
+					p->basepose.quat[0] *=  1;
+					p->basepose.quat[1] *= -1;
+					p->basepose.quat[2] *=  1;
+				}
+#endif
+				if (p->parent < 0 || p->parent >= numanimbones)
+				{
+					Con_Printf("%s: bone->parent %i >= numanimbones %i\n", animname, p->parent, numanimbones);
+					p->parent = 0;
+				}
+				// check that bones are the same as in the base
+				if (strcmp(p->name, bones[index].name) || p->parent != bones[index].parent)
+					Host_Error("%s: this loader only supports animations with the same bones as the mesh", animname);
+			}
+			animbuffer = p;
+		}
+		else if (!strcmp(pchunk->id, "ANIMINFO"))
+		{
+			pskaniminfo_t *p;
+			if (recordsize != sizeof(*p))
+				Host_Error("%s: %s has unsupported recordsize", animname, pchunk->id);
+			// byteswap in place and keep the pointer
+			numanims = numrecords;
+			anims = (pskaniminfo_t *)animbuffer;
+			for (index = 0, p = (pskaniminfo_t *)animbuffer;index < numrecords;index++, p++)
+			{
+				p->numbones = LittleLong(p->numbones);
+				p->playtime = LittleFloat(p->playtime);
+				p->fps = LittleFloat(p->fps);
+				p->firstframe = LittleLong(p->firstframe);
+				p->numframes = LittleLong(p->numframes);
+				if (p->numbones != numbones)
+					Con_Printf("%s: animinfo->numbones != numbones, trying to load anyway!\n", animname);
+			}
+			animbuffer = p;
+		}
+		else if (!strcmp(pchunk->id, "ANIMKEYS"))
+		{
+			pskanimkeys_t *p;
+			if (recordsize != sizeof(*p))
+				Host_Error("%s: %s has unsupported recordsize", animname, pchunk->id);
+			numanimkeys = numrecords;
+			animkeys = (pskanimkeys_t *)animbuffer;
+			for (index = 0, p = (pskanimkeys_t *)animbuffer;index < numrecords;index++, p++)
+			{
+				p->origin[0] = LittleFloat(p->origin[0]);
+				p->origin[1] = LittleFloat(p->origin[1]);
+				p->origin[2] = LittleFloat(p->origin[2]);
+				p->quat[0] = LittleFloat(p->quat[0]);
+				p->quat[1] = LittleFloat(p->quat[1]);
+				p->quat[2] = LittleFloat(p->quat[2]);
+				p->quat[3] = LittleFloat(p->quat[3]);
+				p->frametime = LittleFloat(p->frametime);
+#ifdef PSKQUATNEGATIONS
+				if (index % numbones)
+				{
+					p->quat[0] *= -1;
+					p->quat[1] *= -1;
+					p->quat[2] *= -1;
+				}
+				else
+				{
+					p->quat[0] *=  1;
+					p->quat[1] *= -1;
+					p->quat[2] *=  1;
+				}
+#endif
+			}
+			animbuffer = p;
+			// TODO: allocate bonepose stuff
+		}
+		else
+			Con_Printf("%s: unknown chunk ID \"%s\"\n", animname, pchunk->id);
 	}
 
+	if (!numpnts || !pnts || !numvtxw || !vtxw || !numfaces || !faces || !nummatts || !matts || !numbones || !bones || !numrawweights || !rawweights || !numanims || !anims || !numanimkeys || !animkeys)
+		Host_Error("%s: missing required chunks", loadmodel->name);
+
+	loadmodel->numframes = 0;
+	for (index = 0;index < numanims;index++)
+		loadmodel->numframes += anims[index].numframes;
+
+	if (numanimkeys != numbones * loadmodel->numframes)
+		Host_Error("%s: %s has incorrect number of animation keys", animname, pchunk->id);
+
+	meshvertices = numvtxw;
+	meshtriangles = numfaces;
+
+	// load external .skin files if present
+	skinfiles = Mod_LoadSkinFiles();
+	if (loadmodel->numskins < 1)
+		loadmodel->numskins = 1;
+	loadmodel->num_bones = numbones;
+	loadmodel->num_poses = loadmodel->num_bones * loadmodel->numframes;
+	loadmodel->num_textures = loadmodel->nummodelsurfaces = loadmodel->num_surfaces = nummatts;
+	// do most allocations as one merged chunk
+	data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + meshtriangles * sizeof(int[3]) + meshvertices * (sizeof(float[14]) + sizeof(int[4]) + sizeof(float[4])) + loadmodel->num_poses * sizeof(float[36]) + loadmodel->numskins * sizeof(animscene_t) + loadmodel->num_bones * sizeof(aliasbone_t) + loadmodel->numframes * sizeof(animscene_t));
+	loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
+	loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
+	loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
+	loadmodel->surfmesh.num_vertices = meshvertices;
+	loadmodel->surfmesh.num_triangles = meshtriangles;
+	loadmodel->surfmesh.data_element3i = (int *)data;data += meshtriangles * sizeof(int[3]);
+	loadmodel->surfmesh.data_neighbor3i = (int *)data;data += meshtriangles * sizeof(int[3]);
+	loadmodel->surfmesh.data_vertex3f = (float *)data;data += meshvertices * sizeof(float[3]);
+	loadmodel->surfmesh.data_svector3f = (float *)data;data += meshvertices * sizeof(float[3]);
+	loadmodel->surfmesh.data_tvector3f = (float *)data;data += meshvertices * sizeof(float[3]);
+	loadmodel->surfmesh.data_normal3f = (float *)data;data += meshvertices * sizeof(float[3]);
+	loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += meshvertices * sizeof(float[2]);
+	loadmodel->surfmesh.data_vertexweightindex4i = (int *)data;data += meshvertices * sizeof(int[4]);
+	loadmodel->surfmesh.data_vertexweightinfluence4f = (float *)data;data += meshvertices * sizeof(float[4]);
+	loadmodel->data_poses = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
+	loadmodel->data_basebonepose = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
+	loadmodel->data_baseboneposeinverse = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
+	loadmodel->skinscenes = (animscene_t *)data;data += loadmodel->numskins * sizeof(animscene_t);
+	loadmodel->data_bones = (aliasbone_t *)data;data += loadmodel->num_bones * sizeof(aliasbone_t);
+	loadmodel->animscenes = (animscene_t *)data;data += loadmodel->numframes * sizeof(animscene_t);
+
+	for (i = 0;i < loadmodel->numskins;i++)
 	{
-		int i, count, *renderlist, *renderlistend, *outrenderlist;
-	//	zymlump_t lump_render; // int renderlist[rendersize]; // sorted by shader with run lengths (int count), shaders are sequentially used, each run can be used with glDrawElements (each triangle is 3 int indices)
-		loadmodel->alias.zymdata_renderlist = Mem_Alloc(loadmodel->mempool, pheader->lump_render.length);
-		// byteswap, validate, and swap winding order of tris
-		count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
-		if (pheader->lump_render.length != count)
-			Host_Error("Mod_ZYMOTICMODEL_Load: renderlist is wrong size in %s (is %i bytes, should be %i bytes)\n", loadmodel->name, pheader->lump_render.length, count);
-		outrenderlist = loadmodel->alias.zymdata_renderlist = Mem_Alloc(loadmodel->mempool, count);
-		renderlist = (void *) (pheader->lump_render.start + pbase);
-		renderlistend = (void *) ((qbyte *) renderlist + pheader->lump_render.length);
-		for (i = 0;i < pheader->numshaders;i++)
+		loadmodel->skinscenes[i].firstframe = i;
+		loadmodel->skinscenes[i].framecount = 1;
+		loadmodel->skinscenes[i].loop = true;
+		loadmodel->skinscenes[i].framerate = 10;
+	}
+
+	// create surfaces
+	for (index = 0, i = 0;index < nummatts;index++)
+	{
+		// since psk models do not have named sections, reuse their shader name as the section name
+		if (matts[index].name[0])
+			Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + index, skinfiles, matts[index].name, matts[index].name);
+		else
+			for (j = 0;j < loadmodel->numskins;j++)
+				Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + index + j * loadmodel->num_surfaces, NULL);
+		loadmodel->surfacelist[index] = index;
+		loadmodel->data_surfaces[index].texture = loadmodel->data_textures + index;
+		loadmodel->data_surfaces[index].num_firstvertex = 0;
+		loadmodel->data_surfaces[index].num_vertices = loadmodel->surfmesh.num_vertices;
+	}
+
+	// copy over the vertex locations and texcoords
+	for (index = 0;index < numvtxw;index++)
+	{
+		loadmodel->surfmesh.data_vertex3f[index*3+0] = pnts[vtxw[index].pntsindex].origin[0];
+		loadmodel->surfmesh.data_vertex3f[index*3+1] = pnts[vtxw[index].pntsindex].origin[1];
+		loadmodel->surfmesh.data_vertex3f[index*3+2] = pnts[vtxw[index].pntsindex].origin[2];
+		loadmodel->surfmesh.data_texcoordtexture2f[index*2+0] = vtxw[index].texcoord[0];
+		loadmodel->surfmesh.data_texcoordtexture2f[index*2+1] = vtxw[index].texcoord[1];
+	}
+
+	// loading the faces is complicated because we need to sort them into surfaces by mattindex
+	for (index = 0;index < numfaces;index++)
+		loadmodel->data_surfaces[faces[index].mattindex].num_triangles++;
+	for (index = 0, i = 0;index < nummatts;index++)
+	{
+		loadmodel->data_surfaces[index].num_firsttriangle = i;
+		i += loadmodel->data_surfaces[index].num_triangles;
+		loadmodel->data_surfaces[index].num_triangles = 0;
+	}
+	for (index = 0;index < numfaces;index++)
+	{
+		i = (loadmodel->data_surfaces[faces[index].mattindex].num_firsttriangle + loadmodel->data_surfaces[faces[index].mattindex].num_triangles++)*3;
+		loadmodel->surfmesh.data_element3i[i+0] = faces[index].vtxwindex[0];
+		loadmodel->surfmesh.data_element3i[i+1] = faces[index].vtxwindex[1];
+		loadmodel->surfmesh.data_element3i[i+2] = faces[index].vtxwindex[2];
+	}
+
+	// copy over the bones
+	for (index = 0;index < numbones;index++)
+	{
+		strlcpy(loadmodel->data_bones[index].name, bones[index].name, sizeof(loadmodel->data_bones[index].name));
+		loadmodel->data_bones[index].parent = (index || bones[index].parent > 0) ? bones[index].parent : -1;
+		if (loadmodel->data_bones[index].parent >= index)
+			Host_Error("%s bone[%i].parent >= %i", loadmodel->name, index, index);
+	}
+
+	// sort the psk point weights into the vertex weight tables
+	// (which only accept up to 4 bones per vertex)
+	for (index = 0;index < numvtxw;index++)
+	{
+		int l;
+		float sum;
+		for (j = 0;j < numrawweights;j++)
 		{
-			if (renderlist >= renderlistend)
-				Host_Error("Mod_ZYMOTICMODEL_Load: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
-			count = BigLong(*renderlist);renderlist++;
-			if (renderlist + count * 3 > renderlistend)
-				Host_Error("Mod_ZYMOTICMODEL_Load: corrupt renderlist in %s (wrong size)\n", loadmodel->name);
-			*outrenderlist++ = count;
-			while (count--)
+			if (rawweights[j].pntsindex == vtxw[index].pntsindex)
 			{
-				outrenderlist[2] = BigLong(renderlist[0]);
-				outrenderlist[1] = BigLong(renderlist[1]);
-				outrenderlist[0] = BigLong(renderlist[2]);
-				if ((unsigned int)outrenderlist[0] >= (unsigned int)pheader->numverts
-				 || (unsigned int)outrenderlist[1] >= (unsigned int)pheader->numverts
-				 || (unsigned int)outrenderlist[2] >= (unsigned int)pheader->numverts)
-					Host_Error("Mod_ZYMOTICMODEL_Load: corrupt renderlist in %s (out of bounds index)\n", loadmodel->name);
-				renderlist += 3;
-				outrenderlist += 3;
+				int boneindex = rawweights[j].boneindex;
+				float influence = rawweights[j].weight;
+				for (l = 0;l < 4;l++)
+				{
+					if (loadmodel->surfmesh.data_vertexweightinfluence4f[index*4+l] < influence)
+					{
+						// move lower influence weights out of the way first
+						int l2;
+						for (l2 = 3;l2 > l;l2--)
+						{
+							loadmodel->surfmesh.data_vertexweightinfluence4f[index*4+l2] = loadmodel->surfmesh.data_vertexweightinfluence4f[index*4+l2-1];
+							loadmodel->surfmesh.data_vertexweightindex4i[index*4+l2] = loadmodel->surfmesh.data_vertexweightindex4i[index*4+l2-1];
+						}
+						// store the new weight
+						loadmodel->surfmesh.data_vertexweightinfluence4f[index*4+l] = influence;
+						loadmodel->surfmesh.data_vertexweightindex4i[index*4+l] = boneindex;
+						break;
+					}
+				}
 			}
 		}
+		sum = 0;
+		for (l = 0;l < 4;l++)
+			sum += loadmodel->surfmesh.data_vertexweightinfluence4f[index*4+l];
+		if (sum && fabs(sum - 1) > (1.0f / 256.0f))
+		{
+			float f = 1.0f / sum;
+			for (l = 0;l < 4;l++)
+				loadmodel->surfmesh.data_vertexweightinfluence4f[index*4+l] *= f;
+		}
 	}
 
+	// set up the animscenes based on the anims
+	for (index = 0, i = 0;index < numanims;index++)
 	{
-		int i;
-		char *shadername;
-	//	zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
-		loadmodel->alias.zymdata_textures = Mem_Alloc(loadmodel->mempool, pheader->numshaders * sizeof(rtexture_t *));
-		shadername = (void *) (pheader->lump_shaders.start + pbase);
-		for (i = 0;i < pheader->numshaders;i++)
-			loadmodel->alias.zymdata_textures[i] = loadtextureimage(loadmodel->texturepool, shadername + i * 32, 0, 0, true, TEXF_ALPHA | TEXF_PRECACHE | (r_mipskins.integer ? TEXF_MIPMAP : 0));
+		for (j = 0;j < anims[index].numframes;j++, i++)
+		{
+			dpsnprintf(loadmodel->animscenes[i].name, sizeof(loadmodel->animscenes[i].name), "%s_%d", anims[index].name, j);
+			loadmodel->animscenes[i].firstframe = i;
+			loadmodel->animscenes[i].framecount = 1;
+			loadmodel->animscenes[i].loop = true;
+			loadmodel->animscenes[i].framerate = 10;
+		}
 	}
 
+	// load the poses from the animkeys
+	for (index = 0;index < numanimkeys;index++)
 	{
-	//	zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
-		loadmodel->alias.zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
-		memcpy(loadmodel->alias.zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
+		pskanimkeys_t *k = animkeys + index;
+		matrix4x4_t matrix;
+		Matrix4x4_FromOriginQuat(&matrix, k->origin[0], k->origin[1], k->origin[2], k->quat[0], k->quat[1], k->quat[2], k->quat[3]);
+		Matrix4x4_ToArray12FloatD3D(&matrix, loadmodel->data_poses + index*12);
 	}
+	Mod_FreeSkinFiles(skinfiles);
+	Mem_Free(animfilebuffer);
+
+	// compute all the mesh information that was not loaded from the file
+	// TODO: honor smoothing groups somehow?
+	Mod_ValidateElements(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles, 0, loadmodel->surfmesh.num_vertices, __FILE__, __LINE__);
+	Mod_BuildBaseBonePoses();
+	Mod_BuildNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_normal3f, true);
+	Mod_BuildTextureVectorsFromNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, true);
+	Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
+	Mod_Alias_CalculateBoundingBox();
+
+	loadmodel->surfmesh.isanimated = loadmodel->numframes > 1 || loadmodel->animscenes[0].framecount > 1;
 }