#include "image.h"
#include "r_shadow.h"
+cvar_t r_mipskins = {CVAR_SAVE, "r_mipskins", "0"};
+
model_t *loadmodel;
// LordHavoc: increased from 512 to 2048
rtexturepool_t *mod_shared_texturepool;
rtexture_t *r_notexture;
rtexture_t *mod_shared_detailtextures[NUM_DETAILTEXTURES];
+rtexture_t *mod_shared_distorttexture[64];
void Mod_BuildDetailTextures (void)
{
}
}
+qbyte Mod_MorphDistortTexture (double y0, double y1, double y2, double y3, double morph)
+{
+ int value = (int)(((y1 + y3 - (y0 + y2)) * morph * morph * morph) +
+ ((2 * (y0 - y1) + y2 - y3) * morph * morph) +
+ ((y2 - y0) * morph) +
+ (y1));
+
+ if (value > 255)
+ value = 255;
+ if (value < 0)
+ value = 0;
+
+ return (qbyte)value;
+}
+
+void Mod_BuildDistortTexture (void)
+{
+ int x, y, i, j;
+#define DISTORTRESOLUTION 32
+ qbyte data[5][DISTORTRESOLUTION][DISTORTRESOLUTION][2];
+
+ for (i=0; i<4; i++)
+ {
+ for (y=0; y<DISTORTRESOLUTION; y++)
+ {
+ for (x=0; x<DISTORTRESOLUTION; x++)
+ {
+ data[i][y][x][0] = rand () & 255;
+ data[i][y][x][1] = rand () & 255;
+ }
+ }
+ }
+
+ for (i=0; i<4; i++)
+ {
+ for (j=0; j<16; j++)
+ {
+ for (y=0; y<DISTORTRESOLUTION; y++)
+ {
+ for (x=0; x<DISTORTRESOLUTION; x++)
+ {
+ data[4][y][x][0] = Mod_MorphDistortTexture (data[(i-1)&3][y][x][0], data[i][y][x][0], data[(i+1)&3][y][x][0], data[(i+2)&3][y][x][0], 0.0625*j);
+ data[4][y][x][1] = Mod_MorphDistortTexture (data[(i-1)&3][y][x][1], data[i][y][x][1], data[(i+1)&3][y][x][1], data[(i+2)&3][y][x][1], 0.0625*j);
+ }
+ }
+ mod_shared_distorttexture[i*16+j] = R_LoadTexture2D(mod_shared_texturepool, va("distorttexture%i", i*16+j), DISTORTRESOLUTION, DISTORTRESOLUTION, &data[4][0][0][0], TEXTYPE_DSDT, TEXF_PRECACHE, NULL);
+ }
+ }
+
+ return;
+}
+
texture_t r_surf_notexture;
void Mod_SetupNoTexture(void)
mod_shared_texturepool = R_AllocTexturePool();
Mod_SetupNoTexture();
Mod_BuildDetailTextures();
+ Mod_BuildDistortTexture();
}
static void mod_shutdown(void)
Mod_AliasInit();
Mod_SpriteInit();
+ Cvar_RegisterVariable(&r_mipskins);
Cmd_AddCommand ("modellist", Mod_Print);
Cmd_AddCommand ("modelprecache", Mod_Precache);
}
Con_Printf("Mod_ValidateElements: out of bounds element detected at %s:%d\n", filename, fileline);
}
+void Mod_BuildBumpVectors(const float *v0, const float *v1, const float *v2, const float *tc0, const float *tc1, const float *tc2, float *svector3f, float *tvector3f, float *normal3f)
+{
+ float f;
+ normal3f[0] = (v1[1] - v0[1]) * (v2[2] - v0[2]) - (v1[2] - v0[2]) * (v2[1] - v0[1]);
+ normal3f[1] = (v1[2] - v0[2]) * (v2[0] - v0[0]) - (v1[0] - v0[0]) * (v2[2] - v0[2]);
+ normal3f[2] = (v1[0] - v0[0]) * (v2[1] - v0[1]) - (v1[1] - v0[1]) * (v2[0] - v0[0]);
+ VectorNormalize(normal3f);
+ tvector3f[0] = ((tc1[0] - tc0[0]) * (v2[0] - v0[0]) - (tc2[0] - tc0[0]) * (v1[0] - v0[0]));
+ tvector3f[1] = ((tc1[0] - tc0[0]) * (v2[1] - v0[1]) - (tc2[0] - tc0[0]) * (v1[1] - v0[1]));
+ tvector3f[2] = ((tc1[0] - tc0[0]) * (v2[2] - v0[2]) - (tc2[0] - tc0[0]) * (v1[2] - v0[2]));
+ f = -DotProduct(tvector3f, normal3f);
+ VectorMA(tvector3f, f, normal3f, tvector3f);
+ VectorNormalize(tvector3f);
+ CrossProduct(normal3f, tvector3f, svector3f);
+}
+
// warning: this is an expensive function!
void Mod_BuildTextureVectorsAndNormals(int numverts, int numtriangles, const float *vertex3f, const float *texcoord2f, const int *elements, float *svector3f, float *tvector3f, float *normal3f)
{
int i, tnum;
- float sdir[3], tdir[3], normal[3], f, *v;
+ float sdir[3], tdir[3], normal[3], *v;
const int *e;
// clear the vectors
if (svector3f)
// process each vertex of each triangle and accumulate the results
for (tnum = 0, e = elements;tnum < numtriangles;tnum++, e += 3)
{
- // calculate texture matrix for triangle
- // and then accumulate matrix onto verts used by triangle
-#if 0
- // 3 assignments, 3 subtracts
- VectorSubtract(vertex3f + e[1] * 3, vertex3f + e[0] * 3, edgedir1);
- // 3 assignments, 3 subtracts
- VectorSubtract(vertex3f + e[2] * 3, vertex3f + e[0] * 3, edgedir2);
- // 3 assignments, 3 subtracts, 6 multiplies
- CrossProduct(edgedir1, edgedir2, normal);
-#else
- // 3 assignments, 15 subtracts, 6 multiplies
- normal[0] = (vertex3f[e[1] * 3 + 1] - vertex3f[e[0] * 3 + 1]) * (vertex3f[e[2] * 3 + 2] - vertex3f[e[0] * 3 + 2]) - (vertex3f[e[1] * 3 + 2] - vertex3f[e[0] * 3 + 2]) * (vertex3f[e[2] * 3 + 1] - vertex3f[e[0] * 3 + 1]);
- normal[1] = (vertex3f[e[1] * 3 + 2] - vertex3f[e[0] * 3 + 2]) * (vertex3f[e[2] * 3 + 0] - vertex3f[e[0] * 3 + 0]) - (vertex3f[e[1] * 3 + 0] - vertex3f[e[0] * 3 + 0]) * (vertex3f[e[2] * 3 + 2] - vertex3f[e[0] * 3 + 2]);
- normal[2] = (vertex3f[e[1] * 3 + 0] - vertex3f[e[0] * 3 + 0]) * (vertex3f[e[2] * 3 + 1] - vertex3f[e[0] * 3 + 1]) - (vertex3f[e[1] * 3 + 1] - vertex3f[e[0] * 3 + 1]) * (vertex3f[e[2] * 3 + 0] - vertex3f[e[0] * 3 + 0]);
-#endif
-
- // 1 assignment, 2 adds, 3 multiplies, 1 compare
- f = DotProduct(normal, normal);
- if (f >= 0.001)
+ Mod_BuildBumpVectors(vertex3f + e[0] * 3, vertex3f + e[1] * 3, vertex3f + e[2] * 3, texcoord2f + e[0] * 2, texcoord2f + e[1] * 2, texcoord2f + e[2] * 2, sdir, tdir, normal);
+ if (svector3f)
{
- // 4 assignments, 1 divide, 1 sqrt, 3 multiplies
- f = 1.0f / f;
- VectorScale(normal, f, normal);
- if (normal3f)
+ for (i = 0;i < 3;i++)
{
- // 9 assignments, 9 adds
- for (i = 0;i < 3;i++)
- {
- normal3f[e[i]*3 ] += normal[0];
- normal3f[e[i]*3+1] += normal[1];
- normal3f[e[i]*3+2] += normal[2];
- }
+ svector3f[e[i]*3 ] += sdir[0];
+ svector3f[e[i]*3+1] += sdir[1];
+ svector3f[e[i]*3+2] += sdir[2];
}
- if (tvector3f || svector3f)
+ }
+ if (tvector3f)
+ {
+ for (i = 0;i < 3;i++)
{
- // 3 assignments, 15 subtracts, 6 multiplies
- tdir[0] = ((texcoord2f[e[1] * 3] - texcoord2f[e[0] * 3]) * (vertex3f[e[2]*3+0] - vertex3f[e[0]*3+0]) - (texcoord2f[e[2] * 3] - texcoord2f[e[0] * 3]) * (vertex3f[e[1]*3+0] - vertex3f[e[0]*3+0]));
- tdir[1] = ((texcoord2f[e[1] * 3] - texcoord2f[e[0] * 3]) * (vertex3f[e[2]*3+1] - vertex3f[e[0]*3+1]) - (texcoord2f[e[2] * 3] - texcoord2f[e[0] * 3]) * (vertex3f[e[1]*3+1] - vertex3f[e[0]*3+1]));
- tdir[2] = ((texcoord2f[e[1] * 3] - texcoord2f[e[0] * 3]) * (vertex3f[e[2]*3+2] - vertex3f[e[0]*3+2]) - (texcoord2f[e[2] * 3] - texcoord2f[e[0] * 3]) * (vertex3f[e[1]*3+2] - vertex3f[e[0]*3+2]));
- // 1 assignments, 1 negates, 2 adds, 3 multiplies
- f = -DotProduct(tdir, normal);
- // 3 assignments, 3 adds, 3 multiplies
- VectorMA(tdir, f, normal, tdir);
- // 4 assignments, 1 divide, 1 sqrt, 2 adds, 6 multiplies
- VectorNormalize(tdir);
- if (tvector3f)
- {
- // 9 assignments, 9 adds
- for (i = 0;i < 3;i++)
- {
- tvector3f[e[i]*3 ] += tdir[0];
- tvector3f[e[i]*3+1] += tdir[1];
- tvector3f[e[i]*3+2] += tdir[2];
- }
- }
- if (svector3f)
- {
- // 3 assignments, 3 subtracts, 6 multiplies
- CrossProduct(normal, tdir, sdir);
- // 9 assignments, 9 adds
- for (i = 0;i < 3;i++)
- {
- svector3f[e[i]*3 ] += sdir[0];
- svector3f[e[i]*3+1] += sdir[1];
- svector3f[e[i]*3+2] += sdir[2];
- }
- }
+ tvector3f[e[i]*3 ] += tdir[0];
+ tvector3f[e[i]*3+1] += tdir[1];
+ tvector3f[e[i]*3+2] += tdir[2];
+ }
+ }
+ if (normal3f)
+ {
+ for (i = 0;i < 3;i++)
+ {
+ normal3f[e[i]*3 ] += normal[0];
+ normal3f[e[i]*3+1] += normal[1];
+ normal3f[e[i]*3+2] += normal[2];
}
}
}
/*
int i, i1, i2, i3;
float *v;
- while (mesh->numverts + numverts > mesh->maxverts || mesh->numtriangles + (numverts - 2) > mesh->maxtriangles)
+ while (mesh->num_vertices + numverts > mesh->maxverts || mesh->num_triangles + (numverts - 2) > mesh->maxtriangles)
{
if (mesh->next == NULL)
mesh->next = Mod_ShadowMesh_Alloc(mempool, max(mesh->maxtriangles, numverts));
{
i2 = i3;
i3 = Mod_ShadowMesh_AddVertex(mesh, v);
- mesh->elements[mesh->numtriangles * 3 + 0] = i1;
- mesh->elements[mesh->numtriangles * 3 + 1] = i2;
- mesh->elements[mesh->numtriangles * 3 + 2] = i3;
- mesh->numtriangles++;
+ mesh->elements[mesh->num_triangles * 3 + 0] = i1;
+ mesh->elements[mesh->num_triangles * 3 + 1] = i2;
+ mesh->elements[mesh->num_triangles * 3 + 2] = i3;
+ mesh->num_triangles++;
}
*/
}
newmesh->next = firstmesh;
firstmesh = newmesh;
//Con_Printf("mesh\n");
- //for (i = 0;i < newmesh->numtriangles;i++)
+ //for (i = 0;i < newmesh->num_triangles;i++)
// Con_Printf("tri %d %d %d\n", newmesh->elements[i * 3 + 0], newmesh->elements[i * 3 + 1], newmesh->elements[i * 3 + 2]);
Mod_ValidateElements(newmesh->element3i, newmesh->numtriangles, newmesh->numverts, __FILE__, __LINE__);
Mod_BuildTriangleNeighbors(newmesh->neighbor3i, newmesh->element3i, newmesh->numtriangles);
shadowmesh_t *mesh;
for (mesh = firstmesh;mesh;mesh = mesh->next)
{
- Mod_ValidateElements(mesh->elements, mesh->numtriangles, mesh->numverts, __FILE__, __LINE__);
- Mod_BuildTriangleNeighbors(mesh->neighbors, mesh->elements, mesh->numtriangles);
+ Mod_ValidateElements(mesh->elements, mesh->num_triangles, mesh->num_vertices, __FILE__, __LINE__);
+ Mod_BuildTriangleNeighbors(mesh->neighbors, mesh->elements, mesh->num_triangles);
}
#endif
return firstmesh;
skinframe->detail = mod_shared_detailtextures[(detailtexturecycle++) % NUM_DETAILTEXTURES];
skinframe->base = R_LoadTexture2D (loadmodel->texturepool, basename, s.basepixels_width, s.basepixels_height, s.basepixels, TEXTYPE_RGBA, textureflags, NULL);
if (s.nmappixels != NULL)
- skinframe->nmap = R_LoadTexture2D (loadmodel->texturepool, va("%s_nmap", basename), s.basepixels_width, s.basepixels_height, s.nmappixels, TEXTYPE_RGBA, textureflags, NULL);
+ skinframe->nmap = R_LoadTexture2D (loadmodel->texturepool, va("%s_nmap", basename), s.nmappixels_width, s.nmappixels_height, s.nmappixels, TEXTYPE_RGBA, textureflags, NULL);
if (s.glosspixels != NULL)
skinframe->gloss = R_LoadTexture2D (loadmodel->texturepool, va("%s_gloss", basename), s.glosspixels_width, s.glosspixels_height, s.glosspixels, TEXTYPE_RGBA, textureflags, NULL);
if (s.glowpixels != NULL && loadglowtexture)
}
return true;
}
+
+void Mod_GetTerrainVertex3fTexCoord2fFromRGBA(const qbyte *imagepixels, int imagewidth, int imageheight, int ix, int iy, float *vertex3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
+{
+ float v[3], tc[3];
+ v[0] = ix;
+ v[1] = iy;
+ if (ix >= 0 && iy >= 0 && ix < imagewidth && iy < imageheight)
+ v[2] = (imagepixels[((iy*imagewidth)+ix)*4+0] + imagepixels[((iy*imagewidth)+ix)*4+1] + imagepixels[((iy*imagewidth)+ix)*4+2]) * (1.0f / 765.0f);
+ else
+ v[2] = 0;
+ Matrix4x4_Transform(pixelstepmatrix, v, vertex3f);
+ Matrix4x4_Transform(pixeltexturestepmatrix, v, tc);
+ texcoord2f[0] = tc[0];
+ texcoord2f[1] = tc[1];
+}
+
+void Mod_GetTerrainVertexFromRGBA(const qbyte *imagepixels, int imagewidth, int imageheight, int ix, int iy, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
+{
+ float vup[3], vdown[3], vleft[3], vright[3];
+ float tcup[3], tcdown[3], tcleft[3], tcright[3];
+ float sv[3], tv[3], nl[3];
+ Mod_GetTerrainVertex3fTexCoord2fFromRGBA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, pixelstepmatrix, pixeltexturestepmatrix);
+ Mod_GetTerrainVertex3fTexCoord2fFromRGBA(imagepixels, imagewidth, imageheight, ix, iy - 1, vup, tcup, pixelstepmatrix, pixeltexturestepmatrix);
+ Mod_GetTerrainVertex3fTexCoord2fFromRGBA(imagepixels, imagewidth, imageheight, ix, iy + 1, vdown, tcdown, pixelstepmatrix, pixeltexturestepmatrix);
+ Mod_GetTerrainVertex3fTexCoord2fFromRGBA(imagepixels, imagewidth, imageheight, ix - 1, iy, vleft, tcleft, pixelstepmatrix, pixeltexturestepmatrix);
+ Mod_GetTerrainVertex3fTexCoord2fFromRGBA(imagepixels, imagewidth, imageheight, ix + 1, iy, vright, tcright, pixelstepmatrix, pixeltexturestepmatrix);
+ Mod_BuildBumpVectors(vertex3f, vup, vright, texcoord2f, tcup, tcright, svector3f, tvector3f, normal3f);
+ Mod_BuildBumpVectors(vertex3f, vright, vdown, texcoord2f, tcright, tcdown, sv, tv, nl);
+ VectorAdd(svector3f, sv, svector3f);
+ VectorAdd(tvector3f, tv, tvector3f);
+ VectorAdd(normal3f, nl, normal3f);
+ Mod_BuildBumpVectors(vertex3f, vdown, vleft, texcoord2f, tcdown, tcleft, sv, tv, nl);
+ VectorAdd(svector3f, sv, svector3f);
+ VectorAdd(tvector3f, tv, tvector3f);
+ VectorAdd(normal3f, nl, normal3f);
+ Mod_BuildBumpVectors(vertex3f, vleft, vup, texcoord2f, tcleft, tcup, sv, tv, nl);
+ VectorAdd(svector3f, sv, svector3f);
+ VectorAdd(tvector3f, tv, tvector3f);
+ VectorAdd(normal3f, nl, normal3f);
+}
+
+void Mod_ConstructTerrainPatchFromRGBA(const qbyte *imagepixels, int imagewidth, int imageheight, int x1, int y1, int width, int height, int *element3i, int *neighbor3i, float *vertex3f, float *svector3f, float *tvector3f, float *normal3f, float *texcoord2f, matrix4x4_t *pixelstepmatrix, matrix4x4_t *pixeltexturestepmatrix)
+{
+ int x, y, ix, iy, *e;
+ e = element3i;
+ for (y = 0;y < height;y++)
+ {
+ for (x = 0;x < width;x++)
+ {
+ e[0] = (y + 1) * (width + 1) + (x + 0);
+ e[1] = (y + 0) * (width + 1) + (x + 0);
+ e[2] = (y + 1) * (width + 1) + (x + 1);
+ e[3] = (y + 0) * (width + 1) + (x + 0);
+ e[4] = (y + 0) * (width + 1) + (x + 1);
+ e[5] = (y + 1) * (width + 1) + (x + 1);
+ e += 6;
+ }
+ }
+ Mod_BuildTriangleNeighbors(neighbor3i, element3i, width*height*2);
+ for (y = 0, iy = y1;y < height + 1;y++, iy++)
+ for (x = 0, ix = x1;x < width + 1;x++, ix++, vertex3f += 3, texcoord2f += 2, svector3f += 3, tvector3f += 3, normal3f += 3)
+ Mod_GetTerrainVertexFromRGBA(imagepixels, imagewidth, imageheight, ix, iy, vertex3f, texcoord2f, svector3f, tvector3f, normal3f, pixelstepmatrix, pixeltexturestepmatrix);
+}
+
+skinfile_t *Mod_LoadSkinFiles(void)
+{
+ int i, words, numtags, line, tagsetsused = false, wordsoverflow;
+ char *text;
+ const char *data;
+ skinfile_t *skinfile, *first = NULL;
+ skinfileitem_t *skinfileitem;
+ char word[10][MAX_QPATH];
+ overridetagnameset_t tagsets[MAX_SKINS];
+ overridetagname_t tags[256];
+
+/*
+sample file:
+U_bodyBox,models/players/Legoman/BikerA2.tga
+U_RArm,models/players/Legoman/BikerA1.tga
+U_LArm,models/players/Legoman/BikerA1.tga
+U_armor,common/nodraw
+U_sword,common/nodraw
+U_shield,common/nodraw
+U_homb,common/nodraw
+U_backpack,common/nodraw
+U_colcha,common/nodraw
+tag_head,
+tag_weapon,
+tag_torso,
+*/
+ memset(tagsets, 0, sizeof(tagsets));
+ memset(word, 0, sizeof(word));
+ for (i = 0;i < MAX_SKINS && (data = text = FS_LoadFile(va("%s_%i.skin", loadmodel->name, i), true));i++)
+ {
+ numtags = 0;
+ skinfile = Mem_Alloc(tempmempool, sizeof(skinfile_t));
+ skinfile->next = first;
+ first = skinfile;
+ for(line = 0;;line++)
+ {
+ // parse line
+ if (!COM_ParseToken(&data, true))
+ break;
+ if (!strcmp(com_token, "\n"))
+ continue;
+ words = 0;
+ wordsoverflow = false;
+ do
+ {
+ if (words < 10)
+ strncpy(word[words++], com_token, MAX_QPATH - 1);
+ else
+ wordsoverflow = true;
+ }
+ while (COM_ParseToken(&data, true) && strcmp(com_token, "\n"));
+ if (wordsoverflow)
+ {
+ Con_Printf("Mod_LoadSkinFiles: parsing error in file \"%s_%i.skin\" on line #%i: line with too many statements, skipping\n", loadmodel->name, i, line);
+ continue;
+ }
+ // words is always >= 1
+ if (!strcmp(word[0], "replace"))
+ {
+ if (words == 3)
+ {
+ Con_DPrintf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[1], word[2]);
+ skinfileitem = Mem_Alloc(tempmempool, sizeof(skinfileitem_t));
+ skinfileitem->next = skinfile->items;
+ skinfile->items = skinfileitem;
+ strncpy(skinfileitem->name, word[1], sizeof(skinfileitem->name) - 1);
+ strncpy(skinfileitem->replacement, word[2], sizeof(skinfileitem->replacement) - 1);
+ }
+ else
+ Con_Printf("Mod_LoadSkinFiles: parsing error in file \"%s_%i.skin\" on line #%i: wrong number of parameters to command \"%s\", see documentation in DP_GFX_SKINFILES extension in dpextensions.qc\n", loadmodel->name, i, line, word[0]);
+ }
+ else if (words == 2 && !strcmp(word[1], ","))
+ {
+ // tag name, like "tag_weapon,"
+ Con_DPrintf("Mod_LoadSkinFiles: parsed tag #%i \"%s\"\n", numtags, word[0]);
+ memset(tags + numtags, 0, sizeof(tags[numtags]));
+ strncpy(tags[numtags].name, word[0], sizeof(tags[numtags].name) - 1);
+ numtags++;
+ }
+ else if (words == 3 && !strcmp(word[1], ","))
+ {
+ // mesh shader name, like "U_RArm,models/players/Legoman/BikerA1.tga"
+ Con_DPrintf("Mod_LoadSkinFiles: parsed mesh \"%s\" shader replacement \"%s\"\n", word[0], word[2]);
+ skinfileitem = Mem_Alloc(tempmempool, sizeof(skinfileitem_t));
+ skinfileitem->next = skinfile->items;
+ skinfile->items = skinfileitem;
+ strncpy(skinfileitem->name, word[0], sizeof(skinfileitem->name) - 1);
+ strncpy(skinfileitem->replacement, word[2], sizeof(skinfileitem->replacement) - 1);
+ }
+ else
+ Con_Printf("Mod_LoadSkinFiles: parsing error in file \"%s_%i.skin\" on line #%i: does not look like tag or mesh specification, or replace command, see documentation in DP_GFX_SKINFILES extension in dpextensions.qc\n", loadmodel->name, i, line);
+ }
+ Mem_Free(text);
+
+ if (numtags)
+ {
+ overridetagnameset_t *t;
+ t = tagsets + i;
+ t->num_overridetagnames = numtags;
+ t->data_overridetagnames = Mem_Alloc(loadmodel->mempool, t->num_overridetagnames * sizeof(overridetagname_t));
+ memcpy(t->data_overridetagnames, tags, t->num_overridetagnames * sizeof(overridetagname_t));
+ tagsetsused = true;
+ }
+ }
+ if (tagsetsused)
+ {
+ loadmodel->data_overridetagnamesforskin = Mem_Alloc(loadmodel->mempool, i * sizeof(overridetagnameset_t));
+ memcpy(loadmodel->data_overridetagnamesforskin, tagsets, i * sizeof(overridetagnameset_t));
+ }
+ if (i)
+ loadmodel->numskins = i;
+ return first;
+}
+
+void Mod_FreeSkinFiles(skinfile_t *skinfile)
+{
+ skinfile_t *next;
+ skinfileitem_t *skinfileitem, *nextitem;
+ for (;skinfile;skinfile = next)
+ {
+ next = skinfile->next;
+ for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = nextitem)
+ {
+ nextitem = skinfileitem->next;
+ Mem_Free(skinfileitem);
+ }
+ Mem_Free(skinfile);
+ }
+}
+
+int Mod_CountSkinFiles(skinfile_t *skinfile)
+{
+ int i;
+ for (i = 0;skinfile;skinfile = skinfile->next, i++);
+ return i;
+}
+
+int Mod_RemoveDegenerateTriangles(int numtriangles, const int *inelement3i, int *outelement3i, const float *vertex3f)
+{
+ int i, outtriangles;
+ float d, edgedir[3], temp[3];
+ // a degenerate triangle is one with no width (thickness, surface area)
+ // these are characterized by having all 3 points colinear (along a line)
+ // or having two points identical
+ for (i = 0, outtriangles = 0;i < numtriangles;i++, inelement3i += 3)
+ {
+ // calculate first edge
+ VectorSubtract(vertex3f + inelement3i[1] * 3, vertex3f + inelement3i[0] * 3, edgedir);
+ if (VectorLength2(edgedir) < 0.0001f)
+ continue; // degenerate first edge (no length)
+ VectorNormalize(edgedir);
+ // check if third point is on the edge (colinear)
+ d = -DotProduct(vertex3f + inelement3i[2] * 3, edgedir);
+ VectorMA(vertex3f + inelement3i[2] * 3, d, edgedir, temp);
+ if (VectorLength2(temp) < 0.0001f)
+ continue; // third point colinear with first edge
+ // valid triangle (no colinear points, no duplicate points)
+ VectorCopy(inelement3i, outelement3i);
+ outelement3i += 3;
+ outtriangles++;
+ }
+ return outtriangles;
+}
+
projects / xonotic / darkplaces.git / blobdiff