]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - gl_models.c
bmodel shadow volumes
[xonotic/darkplaces.git] / gl_models.c
index ca149f51a97bb6bf625dda1770d6c5f22d8a5c5c..4d5a876f82b293c75dcab11e9ddae36ecdf07e4b 100644 (file)
@@ -1,5 +1,7 @@
 
 #include "quakedef.h"
+#include "cl_collision.h"
+#include "r_shadow.h"
 
 cvar_t r_quickmodels = {0, "r_quickmodels", "1"};
 
@@ -72,7 +74,7 @@ void R_AliasTransformVerts(int vertcount)
 }
 */
 
-void R_AliasLerpVerts(int vertcount,
+void R_AliasLerpVerts(int vertcount, float *vertices, float *normals,
                float lerp1, const trivertx_t *verts1, const vec3_t fscale1, const vec3_t translate1,
                float lerp2, const trivertx_t *verts2, const vec3_t fscale2, const vec3_t translate2,
                float lerp3, const trivertx_t *verts3, const vec3_t fscale3, const vec3_t translate3,
@@ -82,8 +84,8 @@ void R_AliasLerpVerts(int vertcount,
        vec3_t scale1, scale2, scale3, scale4, translate;
        const float *n1, *n2, *n3, *n4;
        float *av, *avn;
-       av = aliasvert;
-       avn = aliasvertnorm;
+       av = vertices;
+       avn = normals;
        VectorScale(fscale1, lerp1, scale1);
        if (lerp2)
        {
@@ -212,7 +214,7 @@ skinframe_t *R_FetchSkinFrame(const entity_render_t *ent)
                return &model->skinframes[model->skinscenes[s].firstframe];
 }
 
-void R_SetupMDLMD2Frames(const entity_render_t *ent, float colorr, float colorg, float colorb)
+void R_LerpMDLMD2Vertices(const entity_render_t *ent, float *vertices, float *normals)
 {
        const md2frame_t *frame1, *frame2, *frame3, *frame4;
        const trivertx_t *frame1verts, *frame2verts, *frame3verts, *frame4verts;
@@ -226,15 +228,11 @@ void R_SetupMDLMD2Frames(const entity_render_t *ent, float colorr, float colorg,
        frame2verts = &model->mdlmd2data_pose[ent->frameblend[1].frame * model->numverts];
        frame3verts = &model->mdlmd2data_pose[ent->frameblend[2].frame * model->numverts];
        frame4verts = &model->mdlmd2data_pose[ent->frameblend[3].frame * model->numverts];
-       R_AliasLerpVerts(model->numverts,
+       R_AliasLerpVerts(model->numverts, vertices, normals,
                ent->frameblend[0].lerp, frame1verts, frame1->scale, frame1->translate,
                ent->frameblend[1].lerp, frame2verts, frame2->scale, frame2->translate,
                ent->frameblend[2].lerp, frame3verts, frame3->scale, frame3->translate,
                ent->frameblend[3].lerp, frame4verts, frame4->scale, frame4->translate);
-
-       R_LightModel(ent, model->numverts, colorr, colorg, colorb, false);
-
-       //R_AliasTransformVerts(model->numverts);
 }
 
 void R_DrawQ1Q2AliasModelCallback (const void *calldata1, int calldata2)
@@ -294,7 +292,7 @@ void R_DrawQ1Q2AliasModelCallback (const void *calldata1, int calldata2)
        colorscale = r_colorscale;
        if (gl_combine.integer)
                colorscale *= 0.25f;
-       
+
        if (!skinframe->base && !skinframe->pants && !skinframe->shirt && !skinframe->glow)
        {
                // untextured
@@ -311,9 +309,11 @@ void R_DrawQ1Q2AliasModelCallback (const void *calldata1, int calldata2)
                        varray_texcoord[0][i] = model->mdlmd2data_texcoords[i] * 8.0f;
                aliasvert = varray_vertex;
                aliasvertcolor = varray_color;
-               R_SetupMDLMD2Frames(ent, colorscale, colorscale, colorscale);
+               R_LerpMDLMD2Vertices(ent, aliasvert, aliasvertnorm);
+               R_LightModel(ent, model->numverts, colorscale, colorscale, colorscale, false);
                aliasvert = aliasvertbuf;
                aliasvertcolor = aliasvertcolorbuf;
+               GL_UseColorArray();
                R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
                return;
        }
@@ -335,14 +335,17 @@ void R_DrawQ1Q2AliasModelCallback (const void *calldata1, int calldata2)
                memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
                aliasvert = varray_vertex;
                aliasvertcolor = varray_color;
-               R_SetupMDLMD2Frames(ent, colorscale, colorscale, colorscale);
+               R_LerpMDLMD2Vertices(ent, aliasvert, aliasvertnorm);
+               R_LightModel(ent, model->numverts, colorscale, colorscale, colorscale, false);
                aliasvert = aliasvertbuf;
                aliasvertcolor = aliasvertcolorbuf;
+               GL_UseColorArray();
                R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
                return;
        }
 
-       R_SetupMDLMD2Frames(ent, 1 - fog, 1 - fog, 1 - fog);
+       R_LerpMDLMD2Vertices(ent, aliasvert, aliasvertnorm);
+       R_LightModel(ent, model->numverts, colorscale * (1 - fog), colorscale * (1 - fog), colorscale * (1 - fog), false);
 
        if (colormapped)
        {
@@ -379,6 +382,7 @@ void R_DrawQ1Q2AliasModelCallback (const void *calldata1, int calldata2)
                R_ModulateColors(aliasvertcolor, varray_color, model->numverts, colorscale, colorscale, colorscale);
                memcpy(varray_vertex, aliasvert, model->numverts * sizeof(float[4]));
                memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
+               GL_UseColorArray();
                R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
        }
 
@@ -401,9 +405,12 @@ void R_DrawQ1Q2AliasModelCallback (const void *calldata1, int calldata2)
                                blendfunc2 = GL_ONE;
                                c_alias_polys += model->numtris;
                                if (pantsfullbright)
-                                       R_FillColors(varray_color, model->numverts, pantscolor[0] * colorscale, pantscolor[1] * colorscale, pantscolor[2] * colorscale, ent->alpha);
+                                       GL_Color(pantscolor[0] * colorscale, pantscolor[1] * colorscale, pantscolor[2] * colorscale, ent->alpha);
                                else
+                               {
+                                       GL_UseColorArray();
                                        R_ModulateColors(aliasvertcolor, varray_color, model->numverts, pantscolor[0] * colorscale, pantscolor[1] * colorscale, pantscolor[2] * colorscale);
+                               }
                                memcpy(varray_vertex, aliasvert, model->numverts * sizeof(float[4]));
                                memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
                                R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
@@ -426,9 +433,12 @@ void R_DrawQ1Q2AliasModelCallback (const void *calldata1, int calldata2)
                                blendfunc2 = GL_ONE;
                                c_alias_polys += model->numtris;
                                if (shirtfullbright)
-                                       R_FillColors(varray_color, model->numverts, shirtcolor[0] * colorscale, shirtcolor[1] * colorscale, shirtcolor[2] * colorscale, ent->alpha);
+                                       GL_Color(shirtcolor[0] * colorscale, shirtcolor[1] * colorscale, shirtcolor[2] * colorscale, ent->alpha);
                                else
+                               {
+                                       GL_UseColorArray();
                                        R_ModulateColors(aliasvertcolor, varray_color, model->numverts, shirtcolor[0] * colorscale, shirtcolor[1] * colorscale, shirtcolor[2] * colorscale);
+                               }
                                memcpy(varray_vertex, aliasvert, model->numverts * sizeof(float[4]));
                                memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
                                R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
@@ -449,9 +459,9 @@ void R_DrawQ1Q2AliasModelCallback (const void *calldata1, int calldata2)
                        blendfunc1 = GL_SRC_ALPHA;
                        blendfunc2 = GL_ONE;
                        c_alias_polys += model->numtris;
-                       R_FillColors(varray_color, model->numverts, (1 - fog) * r_colorscale, (1 - fog) * r_colorscale, (1 - fog) * r_colorscale, ent->alpha);
                        memcpy(varray_vertex, aliasvert, model->numverts * sizeof(float[4]));
                        memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
+                       GL_Color((1 - fog) * r_colorscale, (1 - fog) * r_colorscale, (1 - fog) * r_colorscale, ent->alpha);
                        R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
                }
        }
@@ -464,13 +474,124 @@ void R_DrawQ1Q2AliasModelCallback (const void *calldata1, int calldata2)
                R_Mesh_State(&m);
 
                c_alias_polys += model->numtris;
-               R_FillColors(varray_color, model->numverts, fogcolor[0] * fog * r_colorscale, fogcolor[1] * fog * r_colorscale, fogcolor[2] * fog * r_colorscale, ent->alpha);
                memcpy(varray_vertex, aliasvert, model->numverts * sizeof(float[4]));
                memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
+               GL_Color(fogcolor[0] * fog * r_colorscale, fogcolor[1] * fog * r_colorscale, fogcolor[2] * fog * r_colorscale, ent->alpha);
                R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
        }
 }
 
+extern cvar_t r_shadows;
+void R_DrawQ1Q2AliasModelFakeShadow (entity_render_t *ent)
+{
+       int i;
+       rmeshstate_t m;
+       model_t *model;
+       float *v, planenormal[3], planedist, dist, projection[3], floororigin[3], surfnormal[3], lightdirection[3], v2[3];
+       mlight_t *sl;
+       rdlight_t *rd;
+
+       if (r_shadows.integer > 1)
+       {
+               float f, lightscale, lightcolor[3];
+               vec3_t temp;
+               memset(&m, 0, sizeof(m));
+               m.blendfunc1 = GL_ONE;
+               m.blendfunc2 = GL_ONE;
+               R_Mesh_State(&m);
+               R_Mesh_Matrix(&ent->matrix);
+               for (i = 0, sl = cl.worldmodel->lights;i < cl.worldmodel->numlights;i++, sl++)
+               {
+                       if (d_lightstylevalue[sl->style] > 0)
+                       {
+                               VectorSubtract(ent->origin, sl->origin, temp);
+                               f = DotProduct(temp,temp);
+                               if (f < (ent->model->radius2 + sl->cullradius2))
+                               {
+                                       model = ent->model;
+                                       R_Mesh_ResizeCheck(model->numverts * 2);
+                                       R_LerpMDLMD2Vertices(ent, varray_vertex, aliasvertnorm);
+                                       Matrix4x4_Transform(&ent->inversematrix, sl->origin, temp);
+                                       GL_Color(0.1 * r_colorscale, 0.025 * r_colorscale, 0.0125 * r_colorscale, 1);
+                                       R_Shadow_Volume(model->numverts, model->numtris, model->mdlmd2data_indices, model->mdlmd2data_triangleneighbors, temp, sl->cullradius + model->radius - sqrt(f), true);
+                                       GL_UseColorArray();
+                                       lightscale = d_lightstylevalue[sl->style] * (1.0f / 65536.0f);
+                                       VectorScale(sl->light, lightscale, lightcolor);
+                                       R_Shadow_VertexLight(model->numverts, aliasvertnorm, temp, sl->cullradius2, sl->distbias, sl->subtract, lightcolor);
+                                       R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
+                               }
+                       }
+               }
+               for (i = 0, rd = r_dlight;i < r_numdlights;i++, rd++)
+               {
+                       if (ent != rd->ent)
+                       {
+                               VectorSubtract(ent->origin, rd->origin, temp);
+                               f = DotProduct(temp,temp);
+                               if (f < (ent->model->radius2 + rd->cullradius2))
+                               {
+                                       model = ent->model;
+                                       R_Mesh_ResizeCheck(model->numverts * 2);
+                                       R_LerpMDLMD2Vertices(ent, varray_vertex, aliasvertnorm);
+                                       Matrix4x4_Transform(&ent->inversematrix, rd->origin, temp);
+                                       GL_Color(0.1 * r_colorscale, 0.025 * r_colorscale, 0.0125 * r_colorscale, 1);
+                                       R_Shadow_Volume(model->numverts, model->numtris, model->mdlmd2data_indices, model->mdlmd2data_triangleneighbors, temp, rd->cullradius + model->radius - sqrt(f), true);
+                                       GL_UseColorArray();
+                                       R_Shadow_VertexLight(model->numverts, aliasvertnorm, temp, rd->cullradius2, LIGHTOFFSET, rd->subtract, rd->light);
+                                       R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
+                               }
+                       }
+               }
+               return;
+       }
+
+       lightdirection[0] = 0.5;
+       lightdirection[1] = 0.2;
+       lightdirection[2] = -1;
+       VectorNormalizeFast(lightdirection);
+
+       VectorMA(ent->origin, 65536.0f, lightdirection, v2);
+       if (CL_TraceLine(ent->origin, v2, floororigin, surfnormal, 0, false, NULL) == 1)
+               return;
+
+       R_Mesh_Matrix(&ent->matrix);
+
+       model = ent->model;
+       R_Mesh_ResizeCheck(model->numverts);
+
+       memset(&m, 0, sizeof(m));
+       m.blendfunc1 = GL_SRC_ALPHA;
+       m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
+       R_Mesh_State(&m);
+
+       c_alias_polys += model->numtris;
+       R_LerpMDLMD2Vertices(ent, varray_vertex, aliasvertnorm);
+
+       // put a light direction in the entity's coordinate space
+       Matrix4x4_Transform3x3(&ent->inversematrix, lightdirection, projection);
+       VectorNormalizeFast(projection);
+
+       // put the plane's normal in the entity's coordinate space
+       Matrix4x4_Transform3x3(&ent->inversematrix, surfnormal, planenormal);
+       VectorNormalizeFast(planenormal);
+
+       // put the plane's distance in the entity's coordinate space
+       VectorSubtract(floororigin, ent->origin, floororigin);
+       planedist = DotProduct(floororigin, surfnormal) + 2;
+
+       dist = -1.0f / DotProduct(projection, planenormal);
+       VectorScale(projection, dist, projection);
+       for (i = 0, v = varray_vertex;i < model->numverts;i++, v += 4)
+       {
+               dist = DotProduct(v, planenormal) - planedist;
+               if (dist > 0)
+               //if (i & 1)
+                       VectorMA(v, dist, projection, v);
+       }
+       GL_Color(0, 0, 0, 0.5);
+       R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
+}
+
 int ZymoticLerpBones(int count, const zymbonematrix *bonebase, const frameblend_t *blend, const zymbone_t *bone)
 {
        int i;
@@ -824,6 +945,7 @@ void R_DrawZymoticModelMeshCallback (const void *calldata1, int calldata2)
        memcpy(varray_vertex, aliasvert, numverts * sizeof(float[4]));
        R_ModulateColors(aliasvertcolor, varray_color, numverts, colorscale, colorscale, colorscale);
        memcpy(varray_texcoord[0], (float *)(m->lump_texcoords.start + (int) m), numverts * sizeof(float[2]));
+       GL_UseColorArray();
        R_Mesh_Draw(numverts, numtriangles, elements);
 
        if (fog)
@@ -837,8 +959,8 @@ void R_DrawZymoticModelMeshCallback (const void *calldata1, int calldata2)
 
                c_alias_polys += numtriangles;
                memcpy(varray_vertex, aliasvert, numverts * sizeof(float[4]));
-               R_FillColors(varray_color, numverts, fogcolor[0] * r_colorscale, fogcolor[1] * r_colorscale, fogcolor[2] * r_colorscale, ent->alpha * fog);
                //memcpy(mesh_texcoord[0], (float *)(m->lump_texcoords.start + (int) m), numverts * sizeof(float[2]));
+               GL_Color(fogcolor[0] * r_colorscale, fogcolor[1] * r_colorscale, fogcolor[2] * r_colorscale, ent->alpha * fog);
                R_Mesh_Draw(numverts, numtriangles, elements);
        }
 }
@@ -877,4 +999,3 @@ void R_DrawQ1Q2AliasModel(entity_render_t *ent)
        else
                R_DrawQ1Q2AliasModelCallback(ent, 0);
 }
-