4 cvar_t gl_transform = {0, "gl_transform", "1"};
5 cvar_t gl_lockarrays = {0, "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);
32 void GL_UnlockArray(void)
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 // currently unused reflection effect texture
56 void makechrometexture(void)
62 fractalnoise(noise, 64, 8);
64 // convert to RGBA data
65 for (i = 0;i < 64*64;i++)
67 data[i][0] = data[i][1] = data[i][2] = noise[i];
71 chrometexture = R_LoadTexture ("chrometexture", 64, 64, &data[0][0], TEXF_MIPMAP | TEXF_RGBA | TEXF_PRECACHE);
74 void gl_models_start(void)
76 // allocate vertex processing arrays
77 aliasvert = qmalloc(sizeof(float[MD2MAX_VERTS][3]));
78 aliasvertnorm = qmalloc(sizeof(float[MD2MAX_VERTS][3]));
79 aliasvertcolor = qmalloc(sizeof(byte[MD2MAX_VERTS][4]));
80 aliasvertcolor2 = qmalloc(sizeof(byte[MD2MAX_VERTS][4])); // used temporarily for tinted coloring
81 zymbonepose = qmalloc(sizeof(zymbonematrix[256]));
82 aliasvertusage = qmalloc(sizeof(int[MD2MAX_VERTS]));
86 void gl_models_shutdown(void)
90 qfree(aliasvertcolor);
91 qfree(aliasvertcolor2);
93 qfree(aliasvertusage);
96 void gl_models_newmap(void)
100 void GL_Models_Init(void)
102 Cvar_RegisterVariable(&gl_transform);
103 Cvar_RegisterVariable(&gl_lockarrays);
105 R_RegisterModule("GL_Models", gl_models_start, gl_models_shutdown, gl_models_newmap);
108 void R_AliasTransformVerts(int vertcount)
111 vec3_t point, matrix_x, matrix_y, matrix_z;
115 matrix_x[0] = softwaretransform_x[0] * softwaretransform_scale;
116 matrix_x[1] = softwaretransform_y[0] * softwaretransform_scale;
117 matrix_x[2] = softwaretransform_z[0] * softwaretransform_scale;
118 matrix_y[0] = softwaretransform_x[1] * softwaretransform_scale;
119 matrix_y[1] = softwaretransform_y[1] * softwaretransform_scale;
120 matrix_y[2] = softwaretransform_z[1] * softwaretransform_scale;
121 matrix_z[0] = softwaretransform_x[2] * softwaretransform_scale;
122 matrix_z[1] = softwaretransform_y[2] * softwaretransform_scale;
123 matrix_z[2] = softwaretransform_z[2] * softwaretransform_scale;
124 for (i = 0;i < vertcount;i++)
126 // rotate, scale, and translate the vertex locations
127 VectorCopy(av, point);
128 av[0] = DotProduct(point, matrix_x) + softwaretransform_offset[0];
129 av[1] = DotProduct(point, matrix_y) + softwaretransform_offset[1];
130 av[2] = DotProduct(point, matrix_z) + softwaretransform_offset[2];
131 // rotate the normals
132 VectorCopy(avn, point);
133 avn[0] = point[0] * softwaretransform_x[0] + point[1] * softwaretransform_y[0] + point[2] * softwaretransform_z[0];
134 avn[1] = point[0] * softwaretransform_x[1] + point[1] * softwaretransform_y[1] + point[2] * softwaretransform_z[1];
135 avn[2] = point[0] * softwaretransform_x[2] + point[1] * softwaretransform_y[2] + point[2] * softwaretransform_z[2];
141 void R_AliasLerpVerts(int vertcount,
142 float lerp1, trivertx_t *verts1, vec3_t fscale1, vec3_t translate1,
143 float lerp2, trivertx_t *verts2, vec3_t fscale2, vec3_t translate2,
144 float lerp3, trivertx_t *verts3, vec3_t fscale3, vec3_t translate3,
145 float lerp4, trivertx_t *verts4, vec3_t fscale4, vec3_t translate4)
148 vec3_t scale1, scale2, scale3, scale4, translate;
149 float *n1, *n2, *n3, *n4;
153 VectorScale(fscale1, lerp1, scale1);
156 VectorScale(fscale2, lerp2, scale2);
159 VectorScale(fscale3, lerp3, scale3);
162 VectorScale(fscale4, lerp4, scale4);
163 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3 + translate4[0] * lerp4;
164 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3 + translate4[1] * lerp4;
165 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3 + translate4[2] * lerp4;
167 for (i = 0;i < vertcount;i++)
169 av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + verts4->v[0] * scale4[0] + translate[0];
170 av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + verts4->v[1] * scale4[1] + translate[1];
171 av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + verts4->v[2] * scale4[2] + translate[2];
172 n1 = m_bytenormals[verts1->lightnormalindex];
173 n2 = m_bytenormals[verts2->lightnormalindex];
174 n3 = m_bytenormals[verts3->lightnormalindex];
175 n4 = m_bytenormals[verts4->lightnormalindex];
176 avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3 + n4[0] * lerp4;
177 avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3 + n4[1] * lerp4;
178 avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3 + n4[2] * lerp4;
181 verts1++;verts2++;verts3++;verts4++;
186 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3;
187 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3;
188 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3;
190 for (i = 0;i < vertcount;i++)
192 av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + translate[0];
193 av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + translate[1];
194 av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + translate[2];
195 n1 = m_bytenormals[verts1->lightnormalindex];
196 n2 = m_bytenormals[verts2->lightnormalindex];
197 n3 = m_bytenormals[verts3->lightnormalindex];
198 avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3;
199 avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3;
200 avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3;
203 verts1++;verts2++;verts3++;
209 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2;
210 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2;
211 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2;
213 for (i = 0;i < vertcount;i++)
215 av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + translate[0];
216 av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + translate[1];
217 av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + translate[2];
218 n1 = m_bytenormals[verts1->lightnormalindex];
219 n2 = m_bytenormals[verts2->lightnormalindex];
220 avn[0] = n1[0] * lerp1 + n2[0] * lerp2;
221 avn[1] = n1[1] * lerp1 + n2[1] * lerp2;
222 avn[2] = n1[2] * lerp1 + n2[2] * lerp2;
231 translate[0] = translate1[0] * lerp1;
232 translate[1] = translate1[1] * lerp1;
233 translate[2] = translate1[2] * lerp1;
237 // general but almost never used case
238 for (i = 0;i < vertcount;i++)
240 av[0] = verts1->v[0] * scale1[0] + translate[0];
241 av[1] = verts1->v[1] * scale1[1] + translate[1];
242 av[2] = verts1->v[2] * scale1[2] + translate[2];
243 n1 = m_bytenormals[verts1->lightnormalindex];
244 avn[0] = n1[0] * lerp1;
245 avn[1] = n1[1] * lerp1;
246 avn[2] = n1[2] * lerp1;
255 for (i = 0;i < vertcount;i++)
257 av[0] = verts1->v[0] * scale1[0] + translate[0];
258 av[1] = verts1->v[1] * scale1[1] + translate[1];
259 av[2] = verts1->v[2] * scale1[2] + translate[2];
260 VectorCopy(m_bytenormals[verts1->lightnormalindex], avn);
269 void GL_DrawModelMesh(rtexture_t *skin, byte *colors, maliashdr_t *m)
273 glBindTexture(GL_TEXTURE_2D, R_GetTexture(skin));
277 glColor3f(0.5f, 0.5f, 0.5f);
279 glColor3f(1.0f, 1.0f, 1.0f);
283 glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(byte[4]), colors);
284 glEnableClientState(GL_COLOR_ARRAY);
287 glDrawElements(GL_TRIANGLES, m->numtris * 3, GL_UNSIGNED_SHORT, (void *)((int) m + m->tridata));
290 glDisableClientState(GL_COLOR_ARRAY);
291 // leave it in a state for additional passes
294 glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive
297 void R_TintModel(byte *in, byte *out, int verts, byte *color)
303 for (i = 0;i < verts;i++)
305 out[0] = (byte) ((in[0] * r) >> 8);
306 out[1] = (byte) ((in[1] * g) >> 8);
307 out[2] = (byte) ((in[2] * b) >> 8);
320 void R_DrawAliasFrame (void)
322 maliashdr_t *m = Mod_Extradata(currentrenderentity->model);
323 // int *skinanimrange = (int *) (currentrenderentity->model->skinanimrange + (int) modelheader) + skin * 2;
324 // int *skinanim = (int *) (currentrenderentity->model->skinanim + (int) modelheader);
325 int *skinanimrange = currentrenderentity->model->skinanimrange;
327 rtexture_t **skinanim = currentrenderentity->model->skinanim;
328 rtexture_t **skinset;
330 skinanimrange += currentrenderentity->skinnum * 2;
331 skin = skinanimrange[0];
332 if (skinanimrange[1] > 1) // animated
333 skin += (int) (cl.time * 10) % skinanimrange[1];
334 skinset = skinanim + skin * 5;
336 if (gl_transform.value)
341 GL_SetupModelTransform(currentrenderentity->origin, currentrenderentity->angles, currentrenderentity->scale);
344 // always needed, for model lighting
345 softwaretransformforentity(currentrenderentity);
347 R_AliasLerpVerts(m->numverts,
348 currentrenderentity->frameblend[0].lerp, ((trivertx_t *)((int) m + m->posedata)) + currentrenderentity->frameblend[0].frame * m->numverts, m->scale, m->scale_origin,
349 currentrenderentity->frameblend[1].lerp, ((trivertx_t *)((int) m + m->posedata)) + currentrenderentity->frameblend[1].frame * m->numverts, m->scale, m->scale_origin,
350 currentrenderentity->frameblend[2].lerp, ((trivertx_t *)((int) m + m->posedata)) + currentrenderentity->frameblend[2].frame * m->numverts, m->scale, m->scale_origin,
351 currentrenderentity->frameblend[3].lerp, ((trivertx_t *)((int) m + m->posedata)) + currentrenderentity->frameblend[3].frame * m->numverts, m->scale, m->scale_origin);
353 if (!gl_transform.value)
354 R_AliasTransformVerts(m->numverts);
356 // prep the vertex array as early as possible
359 glVertexPointer(3, GL_FLOAT, sizeof(float[3]), aliasvert);
360 glEnableClientState(GL_VERTEX_ARRAY);
361 glTexCoordPointer(2, GL_FLOAT, sizeof(float[2]), (void *)((int) m->texdata + (int) m));
362 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
363 GL_LockArray(0, m->numverts);
366 R_LightModel(m->numverts);
370 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
371 // glShadeModel(GL_SMOOTH);
372 if (currentrenderentity->effects & EF_ADDITIVE)
374 glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive rendering
378 else if (currentrenderentity->alpha != 1.0 || (currentrenderentity->model->flags2 & MODF_TRANSPARENT))
380 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
390 if (skinset[0] || skinset[1] || skinset[2] || skinset[3] || skinset[4])
392 if (currentrenderentity->colormap >= 0 && (skinset[0] || skinset[1] || skinset[2]))
396 GL_DrawModelMesh(skinset[0], aliasvertcolor, m);
399 c = (currentrenderentity->colormap & 0xF) << 4;c += (c >= 128 && c < 224) ? 4 : 12; // 128-224 are backwards ranges
400 R_TintModel(aliasvertcolor, aliasvertcolor2, m->numverts, (byte *) (&d_8to24table[c]));
401 GL_DrawModelMesh(skinset[1], aliasvertcolor2, m);
405 c = currentrenderentity->colormap & 0xF0 ;c += (c >= 128 && c < 224) ? 4 : 12; // 128-224 are backwards ranges
406 R_TintModel(aliasvertcolor, aliasvertcolor2, m->numverts, (byte *) (&d_8to24table[c]));
407 GL_DrawModelMesh(skinset[2], aliasvertcolor2, m);
413 GL_DrawModelMesh(skinset[4], aliasvertcolor, m);
416 if (skinset[0]) GL_DrawModelMesh(skinset[0], aliasvertcolor, m);
417 if (skinset[1]) GL_DrawModelMesh(skinset[1], aliasvertcolor, m);
418 if (skinset[2]) GL_DrawModelMesh(skinset[2], aliasvertcolor, m);
421 if (skinset[3]) GL_DrawModelMesh(skinset[3], NULL, m);
424 GL_DrawModelMesh(0, NULL, m);
429 glDisable (GL_TEXTURE_2D);
430 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
432 glDepthMask(0); // disable zbuffer updates
434 VectorSubtract(currentrenderentity->origin, r_origin, diff);
435 glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
437 glDrawElements(GL_TRIANGLES, m->numtris * 3, GL_UNSIGNED_SHORT, (void *)((int) m + m->tridata));
439 glEnable (GL_TEXTURE_2D);
444 glDisableClientState(GL_TEXTURE_COORD_ARRAY);
445 glDisableClientState(GL_VERTEX_ARRAY);
447 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
460 void R_DrawQ2AliasFrame (void)
463 md2frame_t *frame1, *frame2, *frame3, *frame4;
465 md2mem_t *m = Mod_Extradata(currentrenderentity->model);
466 // int *skinanimrange = (int *) (currentrenderentity->model->skinanimrange + (int) modelheader) + skin * 2;
467 // int *skinanim = (int *) (currentrenderentity->model->skinanim + (int) modelheader);
468 int *skinanimrange = currentrenderentity->model->skinanimrange;
470 rtexture_t **skinanim = currentrenderentity->model->skinanim;
471 rtexture_t **skinset;
473 skinanimrange += currentrenderentity->skinnum * 2;
474 skin = skinanimrange[0];
475 if (skinanimrange[1] > 1) // animated
476 skin += (int) (cl.time * 10) % skinanimrange[1];
477 skinset = skinanim + skin * 5;
480 glBindTexture(GL_TEXTURE_2D, R_GetTexture(skinset[0]));
482 if (gl_transform.value)
487 GL_SetupModelTransform(currentrenderentity->origin, currentrenderentity->angles, currentrenderentity->scale);
490 // always needed, for model lighting
491 softwaretransformforentity(currentrenderentity);
493 frame1 = (void *)((int) m + m->ofs_frames + (m->framesize * currentrenderentity->frameblend[0].frame));
494 frame2 = (void *)((int) m + m->ofs_frames + (m->framesize * currentrenderentity->frameblend[1].frame));
495 frame3 = (void *)((int) m + m->ofs_frames + (m->framesize * currentrenderentity->frameblend[2].frame));
496 frame4 = (void *)((int) m + m->ofs_frames + (m->framesize * currentrenderentity->frameblend[3].frame));
497 R_AliasLerpVerts(m->num_xyz,
498 currentrenderentity->frameblend[0].lerp, frame1->verts, frame1->scale, frame1->translate,
499 currentrenderentity->frameblend[1].lerp, frame2->verts, frame2->scale, frame2->translate,
500 currentrenderentity->frameblend[2].lerp, frame3->verts, frame3->scale, frame3->translate,
501 currentrenderentity->frameblend[3].lerp, frame4->verts, frame4->scale, frame4->translate);
502 if (!gl_transform.value)
503 R_AliasTransformVerts(m->num_xyz);
505 R_LightModel(m->num_xyz);
510 if (currentrenderentity->effects & EF_ADDITIVE)
512 glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive rendering
516 else if (currentrenderentity->alpha != 1.0 || (currentrenderentity->model->flags2 & MODF_TRANSPARENT))
518 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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, sizeof(float[3]), aliasvert);
532 glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(byte[4]), aliasvertcolor);
533 glEnableClientState(GL_VERTEX_ARRAY);
534 glEnableClientState(GL_COLOR_ARRAY);
536 order = (int *)((int)m + m->ofs_glcmds);
539 if (!(count = *order++))
542 glBegin(GL_TRIANGLE_STRIP);
545 glBegin(GL_TRIANGLE_FAN);
550 glTexCoord2f(((float *)order)[0], ((float *)order)[1]);
551 glArrayElement(order[2]);
557 glDisableClientState(GL_COLOR_ARRAY);
558 glDisableClientState(GL_VERTEX_ARRAY);
562 glDisable (GL_TEXTURE_2D);
563 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
565 glDepthMask(0); // disable zbuffer updates
567 VectorSubtract(currentrenderentity->origin, r_origin, diff);
568 glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
570 // LordHavoc: big mess...
571 // using vertex arrays only slightly, although it is enough to prevent duplicates
572 // (saving half the transforms)
573 glVertexPointer(3, GL_FLOAT, sizeof(float[3]), aliasvert);
574 glEnableClientState(GL_VERTEX_ARRAY);
576 order = (int *)((int)m + m->ofs_glcmds);
579 if (!(count = *order++))
582 glBegin(GL_TRIANGLE_STRIP);
585 glBegin(GL_TRIANGLE_FAN);
590 glArrayElement(order[2]);
596 glDisableClientState(GL_VERTEX_ARRAY);
598 glEnable (GL_TEXTURE_2D);
602 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
606 if (gl_transform.value)
610 void ZymoticLerpBones(int count, zymbonematrix *bonebase, frameblend_t *blend, zymbone_t *bone, float rootorigin[3], float rootangles[3], float rootscale)
612 float lerp1, lerp2, lerp3, lerp4;
613 zymbonematrix *out, rootmatrix, m, *bone1, *bone2, *bone3, *bone4;
615 AngleVectors(rootangles, rootmatrix.m[0], rootmatrix.m[1], rootmatrix.m[2]);
616 VectorScale(rootmatrix.m[0], rootscale, rootmatrix.m[0]);
617 VectorScale(rootmatrix.m[1], rootscale, rootmatrix.m[1]);
618 VectorScale(rootmatrix.m[2], rootscale, rootmatrix.m[2]);
619 rootmatrix.m[0][3] = rootorigin[0];
620 rootmatrix.m[1][3] = rootorigin[1];
621 rootmatrix.m[2][3] = rootorigin[2];
622 bone1 = bonebase + blend[0].frame * count;
623 lerp1 = blend[0].lerp;
626 bone2 = bonebase + blend[1].frame * count;
627 lerp2 = blend[1].lerp;
630 bone3 = bonebase + blend[2].frame * count;
631 lerp3 = blend[2].lerp;
635 bone4 = bonebase + blend[3].frame * count;
636 lerp4 = blend[3].lerp;
639 // interpolate matrices
640 m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3 + bone4->m[0][0] * lerp4;
641 m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3 + bone4->m[0][1] * lerp4;
642 m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3 + bone4->m[0][2] * lerp4;
643 m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3 + bone4->m[0][3] * lerp4;
644 m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3 + bone4->m[1][0] * lerp4;
645 m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3 + bone4->m[1][1] * lerp4;
646 m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3 + bone4->m[1][2] * lerp4;
647 m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3 + bone4->m[1][3] * lerp4;
648 m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3 + bone4->m[2][0] * lerp4;
649 m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3 + bone4->m[2][1] * lerp4;
650 m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3 + bone4->m[2][2] * lerp4;
651 m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3 + bone4->m[2][3] * lerp4;
652 if (bone->parent >= 0)
653 R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
655 R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
669 // interpolate matrices
670 m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3;
671 m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3;
672 m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3;
673 m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3;
674 m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3;
675 m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3;
676 m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3;
677 m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3;
678 m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3;
679 m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3;
680 m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3;
681 m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3;
682 if (bone->parent >= 0)
683 R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
685 R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
699 // interpolate matrices
700 m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2;
701 m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2;
702 m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2;
703 m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2;
704 m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2;
705 m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2;
706 m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2;
707 m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2;
708 m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2;
709 m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2;
710 m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2;
711 m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2;
712 if (bone->parent >= 0)
713 R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
715 R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
731 // interpolate matrices
732 m.m[0][0] = bone1->m[0][0] * lerp1;
733 m.m[0][1] = bone1->m[0][1] * lerp1;
734 m.m[0][2] = bone1->m[0][2] * lerp1;
735 m.m[0][3] = bone1->m[0][3] * lerp1;
736 m.m[1][0] = bone1->m[1][0] * lerp1;
737 m.m[1][1] = bone1->m[1][1] * lerp1;
738 m.m[1][2] = bone1->m[1][2] * lerp1;
739 m.m[1][3] = bone1->m[1][3] * lerp1;
740 m.m[2][0] = bone1->m[2][0] * lerp1;
741 m.m[2][1] = bone1->m[2][1] * lerp1;
742 m.m[2][2] = bone1->m[2][2] * lerp1;
743 m.m[2][3] = bone1->m[2][3] * lerp1;
744 if (bone->parent >= 0)
745 R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &m.m[0], &out->m[0]);
747 R_ConcatTransforms(&rootmatrix.m[0], &m.m[0], &out->m[0]);
758 if (bone->parent >= 0)
759 R_ConcatTransforms(&zymbonepose[bone->parent].m[0], &bone1->m[0], &out->m[0]);
761 R_ConcatTransforms(&rootmatrix.m[0], &bone1->m[0], &out->m[0]);
770 void ZymoticTransformVerts(int vertcount, int *bonecounts, zymvertex_t *vert)
773 float *out = aliasvert;
774 zymbonematrix *matrix;
778 // FIXME: validate bonecounts at load time (must be >= 1)
781 matrix = &zymbonepose[vert->bonenum];
782 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];
783 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];
784 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];
792 matrix = &zymbonepose[vert->bonenum];
793 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];
794 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];
795 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];
803 void ZymoticCalcNormals(int vertcount, int shadercount, int *renderlist)
806 float *out, v1[3], v2[3], normal[3];
809 memset(aliasvertnorm, 0, sizeof(float[3]) * vertcount);
810 memset(aliasvertusage, 0, sizeof(int) * vertcount);
811 // parse render list and accumulate surface normals
820 v1[0] = aliasvert[a+0] - aliasvert[b+0];
821 v1[1] = aliasvert[a+1] - aliasvert[b+1];
822 v1[2] = aliasvert[a+2] - aliasvert[b+2];
823 v2[0] = aliasvert[c+0] - aliasvert[b+0];
824 v2[1] = aliasvert[c+1] - aliasvert[b+1];
825 v2[2] = aliasvert[c+2] - aliasvert[b+2];
826 CrossProduct(v1, v2, normal);
827 VectorNormalize(normal);
828 // add surface normal to vertices
829 aliasvertnorm[a+0] += normal[0];
830 aliasvertnorm[a+1] += normal[1];
831 aliasvertnorm[a+2] += normal[2];
833 aliasvertnorm[b+0] += normal[0];
834 aliasvertnorm[b+1] += normal[1];
835 aliasvertnorm[b+2] += normal[2];
837 aliasvertnorm[c+0] += normal[0];
838 aliasvertnorm[c+1] += normal[1];
839 aliasvertnorm[c+2] += normal[2];
844 // average surface normals
861 void GL_DrawZymoticModelMesh(byte *colors, zymtype1header_t *m)
863 int i, c, *renderlist;
864 rtexture_t **texture;
867 renderlist = (int *)(m->lump_render.start + (int) m);
868 texture = (rtexture_t **)(m->lump_shaders.start + (int) m);
869 glVertexPointer(3, GL_FLOAT, sizeof(float[3]), aliasvert);
870 glEnableClientState(GL_VERTEX_ARRAY);
872 glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(byte[4]), colors);
873 glEnableClientState(GL_COLOR_ARRAY);
875 glTexCoordPointer(2, GL_FLOAT, sizeof(float[2]), (float *)(m->lump_texcoords.start + (int) m));
876 glEnableClientState(GL_TEXTURE_COORD_ARRAY);
878 for (i = 0;i < m->numshaders;i++)
880 c = (*renderlist++) * 3;
881 glBindTexture(GL_TEXTURE_2D, R_GetTexture(*texture));
883 glDrawElements(GL_TRIANGLES, c, GL_UNSIGNED_INT, renderlist);
887 glDisableClientState(GL_TEXTURE_COORD_ARRAY);
889 glDisableClientState(GL_COLOR_ARRAY);
891 glDisableClientState(GL_VERTEX_ARRAY);
894 void GL_DrawZymoticModelMeshFog(vec3_t org, zymtype1header_t *m)
897 int i, c, *renderlist;
900 renderlist = (int *)(m->lump_render.start + (int) m);
901 glDisable(GL_TEXTURE_2D);
902 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
904 glDepthMask(0); // disable zbuffer updates
906 VectorSubtract(org, r_origin, diff);
907 glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
909 glVertexPointer(3, GL_FLOAT, sizeof(float[3]), aliasvert);
910 glEnableClientState(GL_VERTEX_ARRAY);
912 for (i = 0;i < m->numshaders;i++)
914 c = (*renderlist++) * 3;
915 glDrawElements(GL_TRIANGLES, c, GL_UNSIGNED_INT, renderlist);
919 glDisableClientState(GL_VERTEX_ARRAY);
921 glEnable(GL_TEXTURE_2D);
930 void R_DrawZymoticFrame (void)
932 zymtype1header_t *m = Mod_Extradata(currentrenderentity->model);
933 ZymoticLerpBones(m->numbones, (zymbonematrix *)(m->lump_poses.start + (int) m), currentrenderentity->frameblend, (zymbone_t *)(m->lump_bones.start + (int) m), currentrenderentity->origin, currentrenderentity->angles, currentrenderentity->scale);
934 ZymoticTransformVerts(m->numverts, (int *)(m->lump_vertbonecounts.start + (int) m), (zymvertex_t *)(m->lump_verts.start + (int) m));
935 ZymoticCalcNormals(m->numverts, m->numshaders, (int *)(m->lump_render.start + (int) m));
937 R_LightModel(m->numverts);
941 glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
942 // glShadeModel(GL_SMOOTH);
943 if (currentrenderentity->effects & EF_ADDITIVE)
945 glBlendFunc(GL_SRC_ALPHA, GL_ONE); // additive rendering
949 else if (currentrenderentity->alpha != 1.0)
951 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
961 GL_DrawZymoticModelMesh(aliasvertcolor, m);
964 GL_DrawZymoticModelMeshFog(currentrenderentity->origin, m);
966 glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
977 void R_DrawAliasModel (void)
979 if (currentrenderentity->alpha < (1.0 / 64.0))
980 return; // basically completely transparent
985 glEnable (GL_TEXTURE_2D);
987 c_alias_polys += currentrenderentity->model->numtris;
988 if (currentrenderentity->model->aliastype == ALIASTYPE_ZYM)
989 R_DrawZymoticFrame ();
990 else if (currentrenderentity->model->aliastype == ALIASTYPE_MD2)
991 R_DrawQ2AliasFrame ();