4 cvar_t gl_transform = {"gl_transform", "1"};
5 cvar_t gl_lockarrays = {"gl_lockarrays", "1"};
12 // LordHavoc: vertex array
16 byte *aliasvertcolor2;
17 zymbonematrix *zymbonepose;
20 rtexture_t *chrometexture;
22 int arraylocked = false;
23 void GL_LockArray(int first, int count)
25 if (gl_supportslockarrays && gl_lockarrays.value)
27 qglLockArraysEXT(first, count);
41 void GL_SetupModelTransform (vec3_t origin, vec3_t angles, vec_t scale)
43 glTranslatef (origin[0], origin[1], origin[2]);
46 glScalef (scale, scale, scale);
48 glRotatef (angles[1], 0, 0, 1);
50 glRotatef (-angles[0], 0, 1, 0);
52 glRotatef (angles[2], 1, 0, 0);
55 void makechrometexture()
61 fractalnoise(noise, 64, 8);
63 // convert to RGBA data
64 for (i = 0;i < 64*64;i++)
66 data[i][0] = data[i][1] = data[i][2] = noise[i];
70 chrometexture = R_LoadTexture ("chrometexture", 64, 64, &data[0][0], TEXF_MIPMAP | TEXF_RGBA | TEXF_PRECACHE);
73 void gl_models_start()
75 // allocate vertex processing arrays
76 aliasvert = qmalloc(sizeof(float[MD2MAX_VERTS][3]));
77 aliasvertnorm = qmalloc(sizeof(float[MD2MAX_VERTS][3]));
78 aliasvertcolor = qmalloc(sizeof(byte[MD2MAX_VERTS][4]));
79 aliasvertcolor2 = qmalloc(sizeof(byte[MD2MAX_VERTS][4])); // used temporarily for tinted coloring
80 zymbonepose = qmalloc(sizeof(zymbonematrix[256]));
81 aliasvertusage = qmalloc(sizeof(int[MD2MAX_VERTS]));
85 void gl_models_shutdown()
89 qfree(aliasvertcolor);
90 qfree(aliasvertcolor2);
92 qfree(aliasvertusage);
95 void gl_models_newmap()
101 Cvar_RegisterVariable(&gl_transform);
102 Cvar_RegisterVariable(&gl_lockarrays);
104 R_RegisterModule("GL_Models", gl_models_start, gl_models_shutdown, gl_models_newmap);
107 extern vec3_t softwaretransform_x;
108 extern vec3_t softwaretransform_y;
109 extern vec3_t softwaretransform_z;
110 extern vec_t softwaretransform_scale;
111 extern vec3_t softwaretransform_offset;
112 void R_AliasTransformVerts(int vertcount)
115 vec3_t point, matrix_x, matrix_y, matrix_z;
119 matrix_x[0] = softwaretransform_x[0] * softwaretransform_scale;
120 matrix_x[1] = softwaretransform_y[0] * softwaretransform_scale;
121 matrix_x[2] = softwaretransform_z[0] * softwaretransform_scale;
122 matrix_y[0] = softwaretransform_x[1] * softwaretransform_scale;
123 matrix_y[1] = softwaretransform_y[1] * softwaretransform_scale;
124 matrix_y[2] = softwaretransform_z[1] * softwaretransform_scale;
125 matrix_z[0] = softwaretransform_x[2] * softwaretransform_scale;
126 matrix_z[1] = softwaretransform_y[2] * softwaretransform_scale;
127 matrix_z[2] = softwaretransform_z[2] * softwaretransform_scale;
128 for (i = 0;i < vertcount;i++)
130 // rotate, scale, and translate the vertex locations
131 VectorCopy(av, point);
132 av[0] = DotProduct(point, matrix_x) + softwaretransform_offset[0];
133 av[1] = DotProduct(point, matrix_y) + softwaretransform_offset[1];
134 av[2] = DotProduct(point, matrix_z) + softwaretransform_offset[2];
135 // rotate the normals
136 VectorCopy(avn, point);
137 avn[0] = point[0] * softwaretransform_x[0] + point[1] * softwaretransform_y[0] + point[2] * softwaretransform_z[0];
138 avn[1] = point[0] * softwaretransform_x[1] + point[1] * softwaretransform_y[1] + point[2] * softwaretransform_z[1];
139 avn[2] = point[0] * softwaretransform_x[2] + point[1] * softwaretransform_y[2] + point[2] * softwaretransform_z[2];
145 void R_AliasLerpVerts(int vertcount,
146 float lerp1, trivertx_t *verts1, vec3_t fscale1, vec3_t translate1,
147 float lerp2, trivertx_t *verts2, vec3_t fscale2, vec3_t translate2,
148 float lerp3, trivertx_t *verts3, vec3_t fscale3, vec3_t translate3,
149 float lerp4, trivertx_t *verts4, vec3_t fscale4, vec3_t translate4)
152 vec3_t scale1, scale2, scale3, scale4, translate;
153 float *n1, *n2, *n3, *n4;
157 VectorScaleQuick(fscale1, lerp1, scale1);
160 VectorScaleQuick(fscale2, lerp2, scale2);
163 VectorScaleQuick(fscale3, lerp3, scale3);
166 VectorScaleQuick(fscale4, lerp4, scale4);
167 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3 + translate4[0] * lerp4;
168 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3 + translate4[1] * lerp4;
169 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3 + translate4[2] * lerp4;
171 for (i = 0;i < vertcount;i++)
173 av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + verts4->v[0] * scale4[0] + translate[0];
174 av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + verts4->v[1] * scale4[1] + translate[1];
175 av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + verts4->v[2] * scale4[2] + translate[2];
176 n1 = m_bytenormals[verts1->lightnormalindex];
177 n2 = m_bytenormals[verts2->lightnormalindex];
178 n3 = m_bytenormals[verts3->lightnormalindex];
179 n4 = m_bytenormals[verts4->lightnormalindex];
180 avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3 + n4[0] * lerp4;
181 avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3 + n4[1] * lerp4;
182 avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3 + n4[2] * lerp4;
185 verts1++;verts2++;verts3++;verts4++;
190 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3;
191 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3;
192 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3;
194 for (i = 0;i < vertcount;i++)
196 av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + translate[0];
197 av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + translate[1];
198 av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + translate[2];
199 n1 = m_bytenormals[verts1->lightnormalindex];
200 n2 = m_bytenormals[verts2->lightnormalindex];
201 n3 = m_bytenormals[verts3->lightnormalindex];
202 avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3;
203 avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3;
204 avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3;
207 verts1++;verts2++;verts3++;
213 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2;
214 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2;
215 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2;
217 for (i = 0;i < vertcount;i++)
219 av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + translate[0];
220 av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + translate[1];
221 av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + translate[2];
222 n1 = m_bytenormals[verts1->lightnormalindex];
223 n2 = m_bytenormals[verts2->lightnormalindex];
224 avn[0] = n1[0] * lerp1 + n2[0] * lerp2;
225 avn[1] = n1[1] * lerp1 + n2[1] * lerp2;
226 avn[2] = n1[2] * lerp1 + n2[2] * lerp2;
235 translate[0] = translate1[0] * lerp1;
236 translate[1] = translate1[1] * lerp1;
237 translate[2] = translate1[2] * lerp1;
241 // general but almost never used case
242 for (i = 0;i < vertcount;i++)
244 av[0] = verts1->v[0] * scale1[0] + translate[0];
245 av[1] = verts1->v[1] * scale1[1] + translate[1];
246 av[2] = verts1->v[2] * scale1[2] + translate[2];
247 n1 = m_bytenormals[verts1->lightnormalindex];
248 avn[0] = n1[0] * lerp1;
249 avn[1] = n1[1] * lerp1;
250 avn[2] = n1[2] * lerp1;
259 for (i = 0;i < vertcount;i++)
261 av[0] = verts1->v[0] * scale1[0] + translate[0];
262 av[1] = verts1->v[1] * scale1[1] + translate[1];
263 av[2] = verts1->v[2] * scale1[2] + translate[2];
264 VectorCopy(m_bytenormals[verts1->lightnormalindex], avn);
273 void GL_DrawModelMesh(rtexture_t *skin, byte *colors, maliashdr_t *maliashdr)
277 glBindTexture(GL_TEXTURE_2D, R_GetTexture(skin));
281 glColor3f(0.5f, 0.5f, 0.5f);
283 glColor3f(1.0f, 1.0f, 1.0f);
287 glColorPointer(4, GL_UNSIGNED_BYTE, 0, colors);
288 glEnableClientState(GL_COLOR_ARRAY);
291 glDrawElements(GL_TRIANGLES, maliashdr->numtris * 3, GL_UNSIGNED_SHORT, (void *)((int) maliashdr + maliashdr->tridata));
294 glDisableClientState(GL_COLOR_ARRAY);
295 // leave it in a state for additional passes
298 glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive
301 void R_TintModel(byte *in, byte *out, int verts, byte *color)
307 for (i = 0;i < verts;i++)
309 out[0] = (byte) ((in[0] * r) >> 8);
310 out[1] = (byte) ((in[1] * g) >> 8);
311 out[2] = (byte) ((in[2] * b) >> 8);
324 extern vec3_t lightspot;
325 void R_LightModel(entity_t *ent, int numverts, vec3_t center, vec3_t basecolor);
326 void R_DrawAliasFrame (maliashdr_t *maliashdr, float alpha, vec3_t color, entity_t *ent, int shadow, vec3_t org, vec3_t angles, vec_t scale, frameblend_t *blend, rtexture_t **skin, int colormap, int effects, int flags)
328 if (gl_transform.value)
333 GL_SetupModelTransform(org, angles, scale);
336 // always needed, for model lighting
337 softwaretransformforentity(ent);
339 R_AliasLerpVerts(maliashdr->numverts,
340 blend[0].lerp, ((trivertx_t *)((int) maliashdr + maliashdr->posedata)) + blend[0].frame * maliashdr->numverts, maliashdr->scale, maliashdr->scale_origin,
341 blend[1].lerp, ((trivertx_t *)((int) maliashdr + maliashdr->posedata)) + blend[1].frame * maliashdr->numverts, maliashdr->scale, maliashdr->scale_origin,
342 blend[2].lerp, ((trivertx_t *)((int) maliashdr + maliashdr->posedata)) + blend[2].frame * maliashdr->numverts, maliashdr->scale, maliashdr->scale_origin,
343 blend[3].lerp, ((trivertx_t *)((int) maliashdr + maliashdr->posedata)) + blend[3].frame * maliashdr->numverts, maliashdr->scale, maliashdr->scale_origin);
344 if (!gl_transform.value)
345 R_AliasTransformVerts(maliashdr->numverts);
347 // prep the vertex array as early as possible
350 glVertexPointer(3, GL_FLOAT, 0, aliasvert);
351 glEnableClientState(GL_VERTEX_ARRAY);
352 glTexCoordPointer(2, GL_FLOAT, 0, (void *)((int) maliashdr->texdata + (int) maliashdr));
353 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
354 GL_LockArray(0, maliashdr->numverts);
357 R_LightModel(ent, maliashdr->numverts, org, color);
361 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
362 glShadeModel(GL_SMOOTH);
363 if (effects & EF_ADDITIVE)
365 glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive rendering
369 else if (alpha != 1.0)
371 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
381 if (skin[0] || skin[1] || skin[2] || skin[3] || skin[4])
383 if (colormap >= 0 && (skin[0] || skin[1] || skin[2]))
387 GL_DrawModelMesh(skin[0], aliasvertcolor, maliashdr);
390 c = (colormap & 0xF) << 4;c += (c >= 128 && c < 224) ? 4 : 12; // 128-224 are backwards ranges
391 R_TintModel(aliasvertcolor, aliasvertcolor2, maliashdr->numverts, (byte *) (&d_8to24table[c]));
392 GL_DrawModelMesh(skin[1], aliasvertcolor2, maliashdr);
396 c = colormap & 0xF0 ;c += (c >= 128 && c < 224) ? 4 : 12; // 128-224 are backwards ranges
397 R_TintModel(aliasvertcolor, aliasvertcolor2, maliashdr->numverts, (byte *) (&d_8to24table[c]));
398 GL_DrawModelMesh(skin[2], aliasvertcolor2, maliashdr);
403 if (skin[4]) GL_DrawModelMesh(skin[4], aliasvertcolor, maliashdr);
406 if (skin[0]) GL_DrawModelMesh(skin[0], aliasvertcolor, maliashdr);
407 if (skin[1]) GL_DrawModelMesh(skin[1], aliasvertcolor, maliashdr);
408 if (skin[2]) GL_DrawModelMesh(skin[2], aliasvertcolor, maliashdr);
411 if (skin[3]) GL_DrawModelMesh(skin[3], NULL, maliashdr);
414 GL_DrawModelMesh(0, NULL, maliashdr);
419 glDisable (GL_TEXTURE_2D);
420 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
422 glDepthMask(0); // disable zbuffer updates
424 VectorSubtract(org, r_origin, diff);
425 glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
427 glDrawElements(GL_TRIANGLES, maliashdr->numtris * 3, GL_UNSIGNED_SHORT, (void *)((int) maliashdr + maliashdr->tridata));
429 glEnable (GL_TEXTURE_2D);
433 glDisableClientState(GL_TEXTURE_COORD_ARRAY);
434 glDisableClientState(GL_VERTEX_ARRAY);
436 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
449 void R_DrawQ2AliasFrame (md2mem_t *pheader, float alpha, vec3_t color, entity_t *ent, int shadow, vec3_t org, vec3_t angles, vec_t scale, frameblend_t *blend, rtexture_t *skin, int effects, int flags)
452 md2frame_t *frame1, *frame2, *frame3, *frame4;
455 glBindTexture(GL_TEXTURE_2D, R_GetTexture(skin));
457 if (gl_transform.value)
462 GL_SetupModelTransform(org, angles, scale);
465 // always needed, for model lighting
466 softwaretransformforentity(ent);
468 frame1 = (void *)((int) pheader + pheader->ofs_frames + (pheader->framesize * blend[0].frame));
469 frame2 = (void *)((int) pheader + pheader->ofs_frames + (pheader->framesize * blend[1].frame));
470 frame3 = (void *)((int) pheader + pheader->ofs_frames + (pheader->framesize * blend[2].frame));
471 frame4 = (void *)((int) pheader + pheader->ofs_frames + (pheader->framesize * blend[3].frame));
472 R_AliasLerpVerts(pheader->num_xyz,
473 blend[0].lerp, frame1->verts, frame1->scale, frame1->translate,
474 blend[1].lerp, frame2->verts, frame2->scale, frame2->translate,
475 blend[2].lerp, frame3->verts, frame3->scale, frame3->translate,
476 blend[3].lerp, frame4->verts, frame4->scale, frame4->translate);
477 if (!gl_transform.value)
478 R_AliasTransformVerts(pheader->num_xyz);
480 R_LightModel(ent, pheader->num_xyz, org, color);
484 // LordHavoc: big mess...
485 // using vertex arrays only slightly, although it is enough to prevent duplicates
486 // (saving half the transforms)
487 glVertexPointer(3, GL_FLOAT, 0, aliasvert);
488 glColorPointer(4, GL_UNSIGNED_BYTE, 0, aliasvertcolor);
489 glEnableClientState(GL_VERTEX_ARRAY);
490 glEnableClientState(GL_COLOR_ARRAY);
492 order = (int *)((int)pheader + pheader->ofs_glcmds);
495 if (!(count = *order++))
498 glBegin(GL_TRIANGLE_STRIP);
501 glBegin(GL_TRIANGLE_FAN);
506 glTexCoord2f(((float *)order)[0], ((float *)order)[1]);
507 glArrayElement(order[2]);
513 glDisableClientState(GL_COLOR_ARRAY);
514 glDisableClientState(GL_VERTEX_ARRAY);
518 glDisable (GL_TEXTURE_2D);
519 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
521 glDepthMask(0); // disable zbuffer updates
524 VectorSubtract(org, r_origin, diff);
525 glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
528 // LordHavoc: big mess...
529 // using vertex arrays only slightly, although it is enough to prevent duplicates
530 // (saving half the transforms)
531 glVertexPointer(3, GL_FLOAT, 0, aliasvert);
532 glEnableClientState(GL_VERTEX_ARRAY);
534 order = (int *)((int)pheader + pheader->ofs_glcmds);
537 if (!(count = *order++))
540 glBegin(GL_TRIANGLE_STRIP);
543 glBegin(GL_TRIANGLE_FAN);
548 glArrayElement(order[2]);
554 glDisableClientState(GL_VERTEX_ARRAY);
556 glEnable (GL_TEXTURE_2D);
560 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
564 if (gl_transform.value)
568 void ZymoticLerpBones(int count, zymbonematrix *bonebase, frameblend_t *blend, zymbone_t *bone, float rootorigin[3], float rootangles[3], float rootscale)
570 float lerp1, lerp2, lerp3, lerp4;
571 zymbonematrix *out, rootmatrix, m, *bone1, *bone2, *bone3, *bone4;
574 AngleVectors(rootangles, rootmatrix.m[0], rootmatrix.m[1], rootmatrix.m[2]);
575 VectorScale(rootmatrix.m[0], rootscale, rootmatrix.m[0]);
576 VectorScale(rootmatrix.m[1], rootscale, rootmatrix.m[1]);
577 VectorScale(rootmatrix.m[2], rootscale, rootmatrix.m[2]);
578 rootmatrix.m[0][3] = rootorigin[0];
579 rootmatrix.m[1][3] = rootorigin[1];
580 rootmatrix.m[2][3] = rootorigin[2];
581 bone1 = bonebase + blend[0].frame * count;
582 lerp1 = blend[0].lerp;
585 bone2 = bonebase + blend[1].frame * count;
586 lerp2 = blend[1].lerp;
589 bone3 = bonebase + blend[2].frame * count;
590 lerp3 = blend[2].lerp;
594 bone4 = bonebase + blend[3].frame * count;
595 lerp4 = blend[3].lerp;
598 // interpolate matrices
599 m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3 + bone4->m[0][0] * lerp4;
600 m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3 + bone4->m[0][1] * lerp4;
601 m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3 + bone4->m[0][2] * lerp4;
602 m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3 + bone4->m[0][3] * lerp4;
603 m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3 + bone4->m[1][0] * lerp4;
604 m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3 + bone4->m[1][1] * lerp4;
605 m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3 + bone4->m[1][2] * lerp4;
606 m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3 + bone4->m[1][3] * lerp4;
607 m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3 + bone4->m[2][0] * lerp4;
608 m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3 + bone4->m[2][1] * lerp4;
609 m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3 + bone4->m[2][2] * lerp4;
610 m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3 + bone4->m[2][3] * lerp4;
611 if (bone->parent >= 0)
612 R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
614 R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
628 // interpolate matrices
629 m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3;
630 m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3;
631 m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3;
632 m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3;
633 m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3;
634 m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3;
635 m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3;
636 m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3;
637 m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3;
638 m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3;
639 m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3;
640 m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3;
641 if (bone->parent >= 0)
642 R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
644 R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
658 // interpolate matrices
659 m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2;
660 m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2;
661 m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2;
662 m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2;
663 m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2;
664 m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2;
665 m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2;
666 m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2;
667 m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2;
668 m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2;
669 m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2;
670 m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2;
671 if (bone->parent >= 0)
672 R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
674 R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
690 // interpolate matrices
691 m.m[0][0] = bone1->m[0][0] * lerp1;
692 m.m[0][1] = bone1->m[0][1] * lerp1;
693 m.m[0][2] = bone1->m[0][2] * lerp1;
694 m.m[0][3] = bone1->m[0][3] * lerp1;
695 m.m[1][0] = bone1->m[1][0] * lerp1;
696 m.m[1][1] = bone1->m[1][1] * lerp1;
697 m.m[1][2] = bone1->m[1][2] * lerp1;
698 m.m[1][3] = bone1->m[1][3] * lerp1;
699 m.m[2][0] = bone1->m[2][0] * lerp1;
700 m.m[2][1] = bone1->m[2][1] * lerp1;
701 m.m[2][2] = bone1->m[2][2] * lerp1;
702 m.m[2][3] = bone1->m[2][3] * lerp1;
703 if (bone->parent >= 0)
704 R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
706 R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
717 if (bone->parent >= 0)
718 R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &bone1->m[0], &out->m[0]);
720 R_ConcatTransforms(&rootmatrix.m[0], &bone1->m[0], &out->m[0]);
729 void ZymoticTransformVerts(int vertcount, int *bonecounts, zymvertex_t *vert)
732 float *out = aliasvert;
733 zymbonematrix *matrix;
737 // FIXME: validate bonecounts at load time (must be >= 1)
740 matrix = &zymbonepose[vert->bonenum];
741 out[0] = vert->origin[0] * matrix->m[0][0] + vert->origin[1] * matrix->m[0][1] + vert->origin[2] * matrix->m[0][2] + matrix->m[0][3];
742 out[1] = vert->origin[0] * matrix->m[1][0] + vert->origin[1] * matrix->m[1][1] + vert->origin[2] * matrix->m[1][2] + matrix->m[1][3];
743 out[2] = vert->origin[0] * matrix->m[2][0] + vert->origin[1] * matrix->m[2][1] + vert->origin[2] * matrix->m[2][2] + matrix->m[2][3];
751 matrix = &zymbonepose[vert->bonenum];
752 out[0] += vert->origin[0] * matrix->m[0][0] + vert->origin[1] * matrix->m[0][1] + vert->origin[2] * matrix->m[0][2] + matrix->m[0][3];
753 out[1] += vert->origin[0] * matrix->m[1][0] + vert->origin[1] * matrix->m[1][1] + vert->origin[2] * matrix->m[1][2] + matrix->m[1][3];
754 out[2] += vert->origin[0] * matrix->m[2][0] + vert->origin[1] * matrix->m[2][1] + vert->origin[2] * matrix->m[2][2] + matrix->m[2][3];
764 void ZymoticCalcNormals(int vertcount, int shadercount, int *renderlist)
767 float *out, v1[3], v2[3], normal[3];
772 for (a = 1;a < 4096;a++)
773 ixtable[a] = 1.0f / a;
776 memset(aliasvertnorm, 0, sizeof(float[3]) * vertcount);
777 memset(aliasvertusage, 0, sizeof(int) * vertcount);
778 // parse render list and accumulate surface normals
787 v1[0] = aliasvert[a+0] - aliasvert[b+0];
788 v1[1] = aliasvert[a+1] - aliasvert[b+1];
789 v1[2] = aliasvert[a+2] - aliasvert[b+2];
790 v2[0] = aliasvert[c+0] - aliasvert[b+0];
791 v2[1] = aliasvert[c+1] - aliasvert[b+1];
792 v2[2] = aliasvert[c+2] - aliasvert[b+2];
793 CrossProduct(v1, v2, normal);
794 VectorNormalize(normal);
795 // add surface normal to vertices
796 aliasvertnorm[a+0] += normal[0];
797 aliasvertnorm[a+1] += normal[1];
798 aliasvertnorm[a+2] += normal[2];
800 aliasvertnorm[b+0] += normal[0];
801 aliasvertnorm[b+1] += normal[1];
802 aliasvertnorm[b+2] += normal[2];
804 aliasvertnorm[c+0] += normal[0];
805 aliasvertnorm[c+1] += normal[1];
806 aliasvertnorm[c+2] += normal[2];
811 // average surface normals
828 void GL_DrawZymoticModelMesh(byte *colors, zymtype1header_t *m)
830 int i, c, *renderlist;
831 rtexture_t **texture;
834 renderlist = (int *)(m->lump_render.start + (int) m);
835 texture = (rtexture_t **)(m->lump_shaders.start + (int) m);
836 glVertexPointer(3, GL_FLOAT, 0, aliasvert);
837 glEnableClientState(GL_VERTEX_ARRAY);
839 glColorPointer(4, GL_UNSIGNED_BYTE, 0, colors);
840 glEnableClientState(GL_COLOR_ARRAY);
842 glTexCoordPointer(2, GL_FLOAT, 0, (float *)(m->lump_texcoords.start + (int) m));
843 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
845 for (i = 0;i < m->numshaders;i++)
847 c = (*renderlist++) * 3;
848 glBindTexture(GL_TEXTURE_2D, R_GetTexture(*texture));
850 glDrawElements(GL_TRIANGLES, c, GL_UNSIGNED_INT, renderlist);
854 glDisableClientState(GL_TEXTURE_COORD_ARRAY);
856 glDisableClientState(GL_COLOR_ARRAY);
858 glDisableClientState(GL_VERTEX_ARRAY);
861 void GL_DrawZymoticModelMeshFog(vec3_t org, zymtype1header_t *m)
864 int i, c, *renderlist;
867 renderlist = (int *)(m->lump_render.start + (int) m);
868 glDisable(GL_TEXTURE_2D);
869 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
871 glDepthMask(0); // disable zbuffer updates
873 VectorSubtract(org, r_origin, diff);
874 glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
876 glVertexPointer(3, GL_FLOAT, 0, aliasvert);
877 glEnableClientState(GL_VERTEX_ARRAY);
879 for (i = 0;i < m->numshaders;i++)
881 c = (*renderlist++) * 3;
882 glDrawElements(GL_TRIANGLES, c, GL_UNSIGNED_INT, renderlist);
886 glDisableClientState(GL_VERTEX_ARRAY);
888 glEnable(GL_TEXTURE_2D);
897 void R_DrawZymoticFrame (zymtype1header_t *m, float alpha, vec3_t color, entity_t *ent, int shadow, vec3_t org, vec3_t angles, vec_t scale, frameblend_t *blend, int skinblah, int effects, int flags)
899 ZymoticLerpBones(m->numbones, (zymbonematrix *)(m->lump_poses.start + (int) m), blend, (zymbone_t *)(m->lump_bones.start + (int) m), org, angles, scale);
900 ZymoticTransformVerts(m->numverts, (int *)(m->lump_vertbonecounts.start + (int) m), (zymvertex_t *)(m->lump_verts.start + (int) m));
901 ZymoticCalcNormals(m->numverts, m->numshaders, (int *)(m->lump_render.start + (int) m));
903 R_LightModel(ent, m->numverts, org, color);
907 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
908 glShadeModel(GL_SMOOTH);
909 if (effects & EF_ADDITIVE)
911 glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive rendering
915 else if (alpha != 1.0)
917 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
927 GL_DrawZymoticModelMesh(aliasvertcolor, m);
930 GL_DrawZymoticModelMeshFog(org, m);
932 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
943 void R_DrawAliasModel (entity_t *ent, int cull, float alpha, model_t *clmodel, frameblend_t *blend, int skin, vec3_t org, vec3_t angles, vec_t scale, int effects, int flags, int colormap)
946 vec3_t mins, maxs, color;
948 rtexture_t **skinset;
950 if (alpha < (1.0 / 64.0))
951 return; // basically completely transparent
953 VectorAdd (org, clmodel->mins, mins);
954 VectorAdd (org, clmodel->maxs, maxs);
956 if (cull && R_VisibleCullBox (mins, maxs))
961 if (skin < 0 || skin >= clmodel->numskins)
964 Con_DPrintf("invalid skin number %d for model %s\n", skin, clmodel->name);
967 modelheader = Mod_Extradata (clmodel);
970 // int *skinanimrange = (int *) (clmodel->skinanimrange + (int) modelheader) + skin * 2;
971 // int *skinanim = (int *) (clmodel->skinanim + (int) modelheader);
972 int *skinanimrange = clmodel->skinanimrange + skin * 2;
973 rtexture_t **skinanim = clmodel->skinanim;
974 i = skinanimrange[0];
975 if (skinanimrange[1] > 1) // animated
976 i += ((int) (cl.time * 10) % skinanimrange[1]);
977 skinset = skinanim + i*5;
981 glEnable (GL_TEXTURE_2D);
983 c_alias_polys += clmodel->numtris;
984 if (clmodel->aliastype == ALIASTYPE_ZYM)
985 R_DrawZymoticFrame (modelheader, alpha, color, ent, ent != &cl.viewent, org, angles, scale, blend, 0 , effects, flags);
986 else if (clmodel->aliastype == ALIASTYPE_MD2)
987 R_DrawQ2AliasFrame (modelheader, alpha, color, ent, ent != &cl.viewent, org, angles, scale, blend, skinset[0] , effects, flags);
989 R_DrawAliasFrame (modelheader, alpha, color, ent, ent != &cl.viewent, org, angles, scale, blend, skinset , colormap, effects, flags);