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fteqw/engine/gl/gl_ppl.c

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Initial checkin of OpenGL renderer git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@6 fc73d0e0-1445-4013-8a0c-d673dee63da5
2004-08-22 22:29:09 +00:00
#include "quakedef.h"
#ifdef RGLQUAKE
#include "glquake.h"
//these are shared with gl_rsurf - move to header
void R_MirrorChain (msurface_t *s);
void GL_SelectTexture (GLenum target);
void R_RenderDynamicLightmaps (msurface_t *fa);
void R_BlendLightmaps (void);
extern int gldepthfunc;
extern int *lightmap_textures;
extern int lightmap_bytes; // 1, 2, or 4
extern cvar_t gl_detail;
extern cvar_t r_fb_bmodels;
extern cvar_t gl_part_flame;
extern cvar_t gl_part_flame;
extern cvar_t gl_maxshadowlights;
extern int detailtexture;
//end header confict
extern lightmapinfo_t **lightmap;
extern model_t *currentmodel;
//#define glBegin glEnd
#define Q2RF_WEAPONMODEL 4 // only draw through eyes
#define EDGEOPTIMISE
#ifdef EDGEOPTIMISE
struct {
short count;
short count2;
short next;
short prev;
} edge[MAX_MAP_EDGES];
int firstedge;
#endif
vec3_t lightorg = {0, 0, 0};
float lightradius;
static void PPL_BaseTextureChain(msurface_t *first)
{
extern int *deluxmap_textures;
extern cvar_t gl_bump;
texture_t *t;
msurface_t *s = first;
int vi;
glRect_t *theRect;
glpoly_t *p;
float *v;
glEnable(GL_TEXTURE_2D);
t = GLR_TextureAnimation (s->texinfo->texture);
if (s->flags & SURF_DRAWTURB)
{
GL_DisableMultitexture();
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GL_Bind (t->gl_texturenum);
for (; s ; s=s->texturechain)
EmitWaterPolys (s);
glDisable(GL_BLEND);
glColor4f(1,1,1, 1);
t->texturechain = NULL; //no lighting effects. (good job these don't animate eh?)
return;
}
if (s->lightmaptexturenum < 0) //no lightmap
{
GL_DisableMultitexture();
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
GL_Bind (t->gl_texturenum);
for (; s ; s=s->texturechain)
for (p = s->polys; p; p=p->next)
{
glBegin(GL_POLYGON);
v = p->verts[0];
for (vi=0 ; vi<p->numverts ; vi++, v+= VERTEXSIZE)
{
glTexCoord2f (v[3], v[4]);
glVertex3fv (v);
}
glEnd ();
}
}
else if (!gl_mtexable)
{ //multitexture isn't supported.
glDisable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
GL_Bind (t->gl_texturenum);
for (s = first; s ; s=s->texturechain)
{
for (p = s->polys; p; p=p->next)
{
glBegin(GL_POLYGON);
v = p->verts[0];
for (vi=0 ; vi<p->numverts ; vi++, v+= VERTEXSIZE)
{
glTexCoord2f (v[3], v[4]);
glVertex3fv (v);
}
glEnd ();
}
}
glEnable(GL_BLEND);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
if (gl_lightmap_format == GL_LUMINANCE || gl_lightmap_format == GL_RGB)
glBlendFunc (GL_ZERO, GL_ONE_MINUS_SRC_COLOR);
else if (gl_lightmap_format == GL_INTENSITY)
{
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glColor4f (0,0,0,1);
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
else if (gl_lightmap_format == GL_RGBA)
{
glBlendFunc(GL_ZERO, GL_ONE_MINUS_SRC_ALPHA);
}
for (s = first; s ; s=s->texturechain)
{
vi = s->lightmaptexturenum;
// Binds lightmap to texenv 1
GL_Bind (lightmap_textures[vi]);
if (lightmap[vi]->modified)
{
lightmap[vi]->modified = false;
theRect = &lightmap[vi]->rectchange;
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, theRect->t,
LMBLOCK_WIDTH, theRect->h, gl_lightmap_format, GL_UNSIGNED_BYTE,
lightmap[vi]->lightmaps+(theRect->t) *LMBLOCK_WIDTH*lightmap_bytes);
theRect->l = LMBLOCK_WIDTH;
theRect->t = LMBLOCK_HEIGHT;
theRect->h = 0;
theRect->w = 0;
}
for (p = s->polys; p; p=p->next)
{
glBegin(GL_POLYGON);
v = p->verts[0];
for (vi=0 ; vi<p->numverts ; vi++, v+= VERTEXSIZE)
{
glTexCoord2f (v[5], v[6]);
glVertex3fv (v);
}
glEnd ();
}
}
}
else
{
if (gl_bump.value && currentmodel->deluxdata && t->gl_texturenumbumpmap)
{
qglActiveTextureARB(GL_TEXTURE0_ARB);
//Bind normal map to texture unit 0
GL_BindType(GL_TEXTURE_2D, t->gl_texturenumbumpmap);
glEnable(GL_TEXTURE_2D);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_REPLACE);
qglActiveTextureARB(GL_TEXTURE1_ARB); //the deluxmap
glEnable(GL_TEXTURE_2D);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_PREVIOUS_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_DOT3_RGB_ARB);
//we now have normalmap.deluxmap on the screen.
if (gl_mtexarbable>=4) //go the whole hog. bumpmapping in one pass.
{
//continue going to give (normalmap.deluxemap)*texture*lightmap.
qglActiveTextureARB(GL_TEXTURE2_ARB);
glEnable(GL_TEXTURE_2D);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
GL_Bind (t->gl_texturenum);
qglActiveTextureARB(GL_TEXTURE3_ARB);
glEnable(GL_TEXTURE_2D);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_BLEND);
vi = -1;
for (; s ; s=s->texturechain)
{
// if (vi != s->lightmaptexturenum)
{
vi = s->lightmaptexturenum;
qglActiveTextureARB(GL_TEXTURE1_ARB);
GL_BindType(GL_TEXTURE_2D, deluxmap_textures[vi] );
if (lightmap[vi]->deluxmodified)
{
lightmap[vi]->deluxmodified = false;
theRect = &lightmap[vi]->deluxrectchange;
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, theRect->t,
LMBLOCK_WIDTH, theRect->h, GL_RGB, GL_UNSIGNED_BYTE,
lightmap[vi]->deluxmaps+(theRect->t) *LMBLOCK_WIDTH*3);
theRect->l = LMBLOCK_WIDTH;
theRect->t = LMBLOCK_HEIGHT;
theRect->h = 0;
theRect->w = 0;
}
qglActiveTextureARB(GL_TEXTURE3_ARB);
GL_BindType(GL_TEXTURE_2D, lightmap_textures[vi] );
if (lightmap[vi]->modified)
{
lightmap[vi]->modified = false;
theRect = &lightmap[vi]->rectchange;
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, theRect->t,
LMBLOCK_WIDTH, theRect->h, gl_lightmap_format, GL_UNSIGNED_BYTE,
lightmap[vi]->lightmaps+(theRect->t) *LMBLOCK_WIDTH*lightmap_bytes);
theRect->l = LMBLOCK_WIDTH;
theRect->t = LMBLOCK_HEIGHT;
theRect->h = 0;
theRect->w = 0;
}
}
for (p = s->polys; p; p=p->next)
{
glBegin(GL_POLYGON);
v = p->verts[0];
for (vi=0 ; vi<p->numverts ; vi++, v+= VERTEXSIZE)
{
qglMultiTexCoord2fARB(GL_TEXTURE0_ARB, v[3], v[4]);
qglMultiTexCoord2fARB(GL_TEXTURE1_ARB, v[5], v[6]);
qglMultiTexCoord2fARB(GL_TEXTURE2_ARB, v[3], v[4]);
qglMultiTexCoord2fARB(GL_TEXTURE3_ARB, v[5], v[6]);
glVertex3fv (v);
}
glEnd ();
}
}
qglActiveTextureARB(GL_TEXTURE3_ARB);
glDisable(GL_TEXTURE_2D);
qglActiveTextureARB(GL_TEXTURE2_ARB);
glDisable(GL_TEXTURE_2D);
qglActiveTextureARB(GL_TEXTURE1_ARB);
glDisable(GL_TEXTURE_2D);
qglActiveTextureARB(GL_TEXTURE0_ARB); //the deluxmap
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
return;
}
glDisable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
for (; s ; s=s->texturechain)
{
vi = s->lightmaptexturenum;
GL_BindType(GL_TEXTURE_2D, deluxmap_textures[vi] );
if (lightmap[vi]->deluxmodified)
{
lightmap[vi]->deluxmodified = false;
theRect = &lightmap[vi]->deluxrectchange;
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, theRect->t,
LMBLOCK_WIDTH, theRect->h, GL_RGB, GL_UNSIGNED_BYTE,
lightmap[vi]->deluxmaps+(theRect->t) *LMBLOCK_WIDTH*3);
theRect->l = LMBLOCK_WIDTH;
theRect->t = LMBLOCK_HEIGHT;
theRect->h = 0;
theRect->w = 0;
}
for (p = s->polys; p; p=p->next)
{
glBegin(GL_POLYGON);
v = p->verts[0];
for (vi=0 ; vi<p->numverts ; vi++, v+= VERTEXSIZE)
{
qglMultiTexCoord2fARB(GL_TEXTURE0_ARB, v[3], v[4]);
qglMultiTexCoord2fARB(GL_TEXTURE1_ARB, v[5], v[6]);
glVertex3fv (v);
}
glEnd ();
}
}
glDisable(GL_TEXTURE_2D);
qglActiveTextureARB(GL_TEXTURE0_ARB);
glBlendFunc(GL_DST_COLOR, GL_ZERO); //tell the texture + lightmap to do current*tex*light (where current is normalmap.deluxemap)
glEnable(GL_BLEND);
s = first;
GL_SelectTexture(mtexid0);
GL_Bind(t->gl_texturenum);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
GL_EnableMultitexture();
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_BLEND);
}
else
{
// Binds world to texture env 0
GL_SelectTexture(mtexid0);
GL_Bind (t->gl_texturenum);
if (t->alphaed)
{
glEnable(GL_BLEND);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
}
else
{
glDisable(GL_BLEND);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
}
GL_EnableMultitexture(); // Same as SelectTexture (TEXTURE1)
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_BLEND);
}
for (; s; s=s->texturechain)
{
vi = s->lightmaptexturenum;
// Binds lightmap to texenv 1
GL_Bind (lightmap_textures[vi]);
if (lightmap[vi]->modified)
{
lightmap[vi]->modified = false;
theRect = &lightmap[vi]->rectchange;
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, theRect->t,
LMBLOCK_WIDTH, theRect->h, gl_lightmap_format, GL_UNSIGNED_BYTE,
lightmap[vi]->lightmaps+(theRect->t) *LMBLOCK_WIDTH*lightmap_bytes);
theRect->l = LMBLOCK_WIDTH;
theRect->t = LMBLOCK_HEIGHT;
theRect->h = 0;
theRect->w = 0;
}
for (p = s->polys; p; p=p->next)
{
glBegin(GL_POLYGON);
v = p->verts[0];
for (vi=0 ; vi<p->numverts ; vi++, v+= VERTEXSIZE)
{
qglMTexCoord2fSGIS (mtexid0, v[3], v[4]);
qglMTexCoord2fSGIS (mtexid1, v[5], v[6]);
glVertex3fv (v);
}
glEnd ();
}
}
}
}
static void PPL_FullBrightTextureChain(msurface_t *first)
{
glpoly_t *p;
float *v;
texture_t *t;
msurface_t *s;
int i;
t = GLR_TextureAnimation (first->texinfo->texture);
if (detailtexture && gl_detail.value)
{
GL_Bind(detailtexture);
glBlendFunc(GL_DST_COLOR, GL_SRC_COLOR);
for (s = first; s ; s=s->texturechain)
{
for (p = s->polys; p; p=p->next)
{
glBegin(GL_POLYGON);
v = p->verts[0];
for (i = 0; i < p->numverts; i++, v += VERTEXSIZE)
{
glTexCoord2f (v[5] * 18, v[6] * 18);
glVertex3fv (v);
}
glEnd();
}
}
}
if (t->gl_texturenumfb && r_fb_bmodels.value && cls.allow_luma)
{
GL_Bind(t->gl_texturenumfb);
glBlendFunc(GL_DST_COLOR, GL_ONE);
for (s = first; s ; s=s->texturechain)
{
for (p = s->polys; p; p=p->next)
{
glBegin(GL_POLYGON);
v = p->verts[0];
for (i = 0; i < p->numverts; i++, v += VERTEXSIZE)
{
glTexCoord2f (v[3], v[4]);
glVertex3fv (v);
}
glEnd();
}
}
}
}
//requires multitexture
void PPL_BaseTextures(model_t *model)
{
int i;
msurface_t *s;
texture_t *t;
glDisable(GL_BLEND);
glColor4f(1,1,1, 1);
// glDepthFunc(GL_LESS);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glShadeModel(GL_FLAT);
currentmodel = model;
if (model == cl.worldmodel && skytexturenum>=0)
{
t = model->textures[skytexturenum];
if (t)
{
s = t->texturechain;
if (s)
{
t->texturechain = NULL;
R_DrawSkyChain (s);
}
}
}
if (mirrortexturenum>=0 && model == cl.worldmodel && r_mirroralpha.value != 1.0)
{
t = model->textures[mirrortexturenum];
if (t)
{
s = t->texturechain;
if (s)
{
t->texturechain = NULL;
R_MirrorChain (s);
}
}
}
for (i=0 ; i<model->numtextures ; i++)
{
t = model->textures[i];
if (!t)
continue;
s = t->texturechain;
if (!s)
continue;
if ((s->flags & SURF_DRAWTURB) && r_wateralphaval != 1.0)
{
t->texturechain = NULL;
continue; // draw translucent water later
}
PPL_BaseTextureChain(s);
}
GL_DisableMultitexture();
}
void PPL_BaseBModelTextures(entity_t *e)
{
int i, k;
model_t *model;
msurface_t *s;
msurface_t *chain = NULL;
glPushMatrix();
R_RotateForEntity(e);
currentmodel = model = e->model;
s = model->surfaces+model->firstmodelsurface;
glDisable(GL_BLEND);
glColor4f(1, 1, 1, 1);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
// calculate dynamic lighting for bmodel if it's not an
// instanced model
if (currentmodel->firstmodelsurface != 0 && r_dynamic.value)
{
for (k=0 ; k<MAX_DLIGHTS ; k++)
{
if ((cl_dlights[k].die < cl.time) ||
(!cl_dlights[k].radius))
continue;
currentmodel->funcs.MarkLights (&cl_dlights[k], 1<<k,
currentmodel->nodes + currentmodel->hulls[0].firstclipnode);
}
}
//update lightmaps.
for (s = model->surfaces+model->firstmodelsurface,i = 0; i < model->nummodelsurfaces; i++, s++)
R_RenderDynamicLightmaps (s);
for (s = model->surfaces+model->firstmodelsurface,i = 0; i < model->nummodelsurfaces; i++, s++)
{
if (chain && s->texinfo->texture != chain->texinfo->texture) //last surface or not the same as the next
{
PPL_BaseTextureChain(chain);
chain = NULL;
}
s->texturechain = chain;
chain = s;
}
if (chain)
PPL_BaseTextureChain(chain);
glPopMatrix();
GL_DisableMultitexture();
glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
void PPL_BaseEntTextures(void)
{
extern model_t *currentmodel;
int i;
if (!r_drawentities.value)
return;
// draw sprites seperately, because of alpha blending
for (i=0 ; i<cl_numvisedicts ; i++)
{
currententity = &cl_visedicts[i];
if (cl.viewentity[r_refdef.currentplayernum] && currententity->keynum == cl.viewentity[r_refdef.currentplayernum])
continue;
if (!currententity->model)
continue;
if (cls.allow_anyparticles || currententity->visframe) //allowed or static
{
if (currententity->model->particleeffect>=0)
{
if (currententity->model->particleengulphs)
{
if (gl_part_flame.value)
{ //particle effect is addedin GLR_DrawEntitiesOnList. Is this so wrong?
continue;
}
}
}
}
switch (currententity->model->type)
{
case mod_alias:
R_DrawGAliasModel (currententity);
break;
case mod_brush:
PPL_BaseBModelTextures (currententity);
break;
default:
break;
}
}
currentmodel = cl.worldmodel;
}
void PPL_LightTextures(model_t *model, vec3_t modelorigin, dlight_t *light)
{
int i;
msurface_t *s;
texture_t *t;
extern cvar_t gl_bump;
int vi;
glpoly_t *p;
float *v;
float dist;
if (gl_bump.value)
{
vec3_t relativelightorigin;
VectorSubtract(light->origin, modelorigin, relativelightorigin);
glShadeModel(GL_SMOOTH);
for (i=0 ; i<model->numtextures ; i++)
{
t = model->textures[i];
if (!t)
continue;
s = t->texturechain;
if (!s)
continue;
{
extern int normalisationCubeMap;
vec3_t lightdir;
t = GLR_TextureAnimation (t);
if (t->gl_texturenumbumpmap)
{
qglActiveTextureARB(GL_TEXTURE0_ARB);
GL_BindType(GL_TEXTURE_2D, t->gl_texturenumbumpmap);
glEnable(GL_TEXTURE_2D);
//Set up texture environment to do (tex0 dot tex1)*color
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB); //make texture normalmap available.
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_REPLACE);
qglActiveTextureARB(GL_TEXTURE1_ARB);
GL_BindType(GL_TEXTURE_CUBE_MAP_ARB, normalisationCubeMap);
glEnable(GL_TEXTURE_CUBE_MAP_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB); //normalisation cubemap * normalmap
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_PREVIOUS_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_DOT3_RGB_ARB);
qglActiveTextureARB(GL_TEXTURE2_ARB);
GL_BindType(GL_TEXTURE_2D, t->gl_texturenumbumpmap);
glEnable(GL_TEXTURE_2D);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB); //bumps * color (the attenuation)
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PRIMARY_COLOR_ARB); //(doesn't actually use the bound texture)
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_PREVIOUS_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE);
}
else
{
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glDisable(GL_TEXTURE_2D);
qglActiveTextureARB(GL_TEXTURE1_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glDisable(GL_TEXTURE_CUBE_MAP_ARB);
qglActiveTextureARB(GL_TEXTURE0_ARB);
}
for (; s; s=s->texturechain)
{
/* if (fabs(s->center[0] - lightorg[0]) > lightradius+s->radius ||
fabs(s->center[1] - lightorg[1]) > lightradius+s->radius ||
fabs(s->center[2] - lightorg[2]) > lightradius+s->radius)
continue;*/
if (s->flags & SURF_PLANEBACK)
{//inverted normal.
if (-DotProduct(s->plane->normal, relativelightorigin)+s->plane->dist > lightradius)
continue;
}
else
{
if (DotProduct(s->plane->normal, relativelightorigin)-s->plane->dist > lightradius)
continue;
}
for (p = s->polys; p; p=p->next)
{
glBegin(GL_POLYGON);
v = p->verts[0];
for (vi=0 ; vi<p->numverts ; vi++, v+= VERTEXSIZE)
{
lightdir[0] = relativelightorigin[0] - v[0];
lightdir[1] = relativelightorigin[1] - v[1];
lightdir[2] = relativelightorigin[2] - v[2];
dist = 1-(sqrt( (lightdir[0])*(lightdir[0]) +
(lightdir[1])*(lightdir[1]) +
(lightdir[2])*(lightdir[2])) / light->radius);
VectorNormalize(lightdir);
glColor3f(light->color[0]*dist, light->color[1]*dist, light->color[2]*dist);
qglMultiTexCoord2fARB(GL_TEXTURE0_ARB, v[3], v[4]);
qglMultiTexCoord3fARB(GL_TEXTURE1_ARB, DotProduct(lightdir, s->texinfo->vecs[0]), -DotProduct(lightdir, s->texinfo->vecs[1]), DotProduct(lightdir, s->normal));
glVertex3fv (v);
}
glEnd ();
}
}
}
}
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glDisable(GL_TEXTURE_2D);
qglActiveTextureARB(GL_TEXTURE1_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glDisable(GL_TEXTURE_CUBE_MAP_ARB);
qglActiveTextureARB(GL_TEXTURE0_ARB);
}
else
{
vec3_t relativelightorigin;
vec3_t lightdir;
glDisable(GL_TEXTURE_2D);
VectorSubtract(light->origin, modelorigin, relativelightorigin);
glShadeModel(GL_SMOOTH);
for (i=0 ; i<model->numtextures ; i++)
{
t = model->textures[i];
if (!t)
continue;
s = t->texturechain;
if (!s)
continue;
{
// t = GLR_TextureAnimation (t);
// GL_Bind (t->gl_texturenum);
for (; s; s=s->texturechain)
{
/* if (fabs(s->center[0] - lightorg[0]) > lightradius+s->radius ||
fabs(s->center[1] - lightorg[1]) > lightradius+s->radius ||
fabs(s->center[2] - lightorg[2]) > lightradius+s->radius)
continue;*/
if (s->flags & SURF_PLANEBACK)
{//inverted normal.
if (DotProduct(s->plane->normal, lightorg)-s->plane->dist <= -lightradius)
continue;
}
else
{
if (DotProduct(s->plane->normal, lightorg)-s->plane->dist >= lightradius)
continue;
}
for (p = s->polys; p; p=p->next)
{
glBegin(GL_POLYGON);
v = p->verts[0];
for (vi=0 ; vi<p->numverts ; vi++, v+= VERTEXSIZE)
{
lightdir[0] = relativelightorigin[0] - v[0];
lightdir[1] = relativelightorigin[1] - v[1];
lightdir[2] = relativelightorigin[2] - v[2];
dist = 1-(sqrt( (lightdir[0])*(lightdir[0]) +
(lightdir[1])*(lightdir[1]) +
(lightdir[2])*(lightdir[2])) / light->radius);
VectorNormalize(lightdir);
glColor3f(light->color[0]*dist, light->color[1]*dist, light->color[2]*dist);
// glTexCoord2f (v[3], v[4]);
glVertex3fv (v);
}
glEnd ();
}
}
}
}
}
}
void PPL_LightBModelTextures(entity_t *e, dlight_t *light)
{
glpoly_t *p;
int i;
model_t *model = e->model;
msurface_t *s;
texture_t *t;
extern cvar_t gl_bump;
int vi;
float *v;
float dist;
glPushMatrix();
R_RotateForEntity(e);
glColor4f(1, 1, 1, 1);
if (gl_bump.value)
{
vec3_t relativelightorigin;
VectorSubtract(light->origin, e->origin, relativelightorigin);
glShadeModel(GL_SMOOTH);
for (s = model->surfaces+model->firstmodelsurface,i = 0; i < model->nummodelsurfaces; i++, s++)
{
t = GLR_TextureAnimation (s->texinfo->texture);
{
extern int normalisationCubeMap;
vec3_t lightdir;
if (t->gl_texturenumbumpmap)
{
qglActiveTextureARB(GL_TEXTURE0_ARB);
GL_BindType(GL_TEXTURE_2D, t->gl_texturenumbumpmap);
glEnable(GL_TEXTURE_2D);
//Set up texture environment to do (tex0 dot tex1)*color
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB); //make texture normalmap available.
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_REPLACE);
qglActiveTextureARB(GL_TEXTURE1_ARB);
GL_BindType(GL_TEXTURE_CUBE_MAP_ARB, normalisationCubeMap);
glEnable(GL_TEXTURE_CUBE_MAP_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB); //normalisation cubemap * normalmap
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_PREVIOUS_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_DOT3_RGB_ARB);
qglActiveTextureARB(GL_TEXTURE2_ARB);
GL_BindType(GL_TEXTURE_2D, t->gl_texturenumbumpmap);
glEnable(GL_TEXTURE_2D);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE_ARB); //bumps * color
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB_ARB, GL_PRIMARY_COLOR_ARB); //(doesn't actually use the bound texture)
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB_ARB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB_ARB, GL_PREVIOUS_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB_ARB, GL_MODULATE);
}
else
{
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glDisable(GL_TEXTURE_2D);
qglActiveTextureARB(GL_TEXTURE1_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glDisable(GL_TEXTURE_CUBE_MAP_ARB);
qglActiveTextureARB(GL_TEXTURE0_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
}
{
/*
if (fabs(s->center[0] - lightorg[0]) > lightradius+s->radius ||
fabs(s->center[1] - lightorg[1]) > lightradius+s->radius ||
fabs(s->center[2] - lightorg[2]) > lightradius+s->radius)
continue;
*/
if (s->flags & SURF_PLANEBACK)
{//inverted normal.
if (-DotProduct(s->plane->normal, relativelightorigin)-s->plane->dist >= lightradius)
continue;
}
else
{
if (DotProduct(s->plane->normal, relativelightorigin)-s->plane->dist >= lightradius)
continue;
}
for (p = s->polys; p; p=p->next)
{
glBegin(GL_POLYGON);
v = p->verts[0];
for (vi=0 ; vi<p->numverts ; vi++, v+= VERTEXSIZE)
{
lightdir[0] = relativelightorigin[0] - v[0];
lightdir[1] = relativelightorigin[1] - v[1];
lightdir[2] = relativelightorigin[2] - v[2];
dist = 1-(sqrt( (lightdir[0])*(lightdir[0]) +
(lightdir[1])*(lightdir[1]) +
(lightdir[2])*(lightdir[2])) / light->radius);
VectorNormalize(lightdir);
glColor3f(light->color[0]*dist, light->color[1]*dist, light->color[2]*dist);
qglMultiTexCoord2fARB(GL_TEXTURE0_ARB, v[3], v[4]);
qglMultiTexCoord3fARB(GL_TEXTURE1_ARB, DotProduct(lightdir, s->texinfo->vecs[0]), -DotProduct(lightdir, s->texinfo->vecs[1]), DotProduct(lightdir, s->normal));
glVertex3fv (v);
}
glEnd ();
}
}
}
}
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glDisable(GL_TEXTURE_2D);
qglActiveTextureARB(GL_TEXTURE1_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glDisable(GL_TEXTURE_CUBE_MAP_ARB);
qglActiveTextureARB(GL_TEXTURE0_ARB);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
}
else
{
vec3_t relativelightorigin;
vec3_t lightdir;
glDisable(GL_TEXTURE_2D);
VectorSubtract(light->origin, e->origin, relativelightorigin);
glShadeModel(GL_SMOOTH);
for (s = model->surfaces+model->firstmodelsurface,i = 0; i < model->nummodelsurfaces; i++, s++)
{
{
{
/* if (fabs(s->center[0] - lightorg[0]) > lightradius+s->radius ||
fabs(s->center[1] - lightorg[1]) > lightradius+s->radius ||
fabs(s->center[2] - lightorg[2]) > lightradius+s->radius)
continue;*/
if (s->flags & SURF_PLANEBACK)
{//inverted normal.
if (DotProduct(s->plane->normal, lightorg)-s->plane->dist <= -lightradius)
continue;
}
else
{
if (DotProduct(s->plane->normal, lightorg)-s->plane->dist >= lightradius)
continue;
}
for (p = s->polys; p; p=p->next)
{
glBegin(GL_POLYGON);
v = p->verts[0];
for (vi=0 ; vi<p->numverts ; vi++, v+= VERTEXSIZE)
{
lightdir[0] = relativelightorigin[0] - v[0];
lightdir[1] = relativelightorigin[1] - v[1];
lightdir[2] = relativelightorigin[2] - v[2];
dist = 1-(sqrt( (lightdir[0])*(lightdir[0]) +
(lightdir[1])*(lightdir[1]) +
(lightdir[2])*(lightdir[2])) / light->radius);
VectorNormalize(lightdir);
glColor3f(light->color[0]*dist, light->color[1]*dist, light->color[2]*dist);
// glTexCoord2f (v[3], v[4]);
glVertex3fv (v);
}
glEnd ();
}
}
}
}
}
glPopMatrix();
}
//draw the bumps on the models for each light.
void PPL_DrawEntLighting(dlight_t *light)
{
int i;
PPL_LightTextures(cl.worldmodel, r_worldentity.origin, light);
if (!r_drawentities.value)
return;
for (i=0 ; i<cl_numvisedicts ; i++)
{
currententity = &cl_visedicts[i];
if (cl.viewentity[r_refdef.currentplayernum] && currententity->keynum == cl.viewentity[r_refdef.currentplayernum])
continue;
if (!currententity->model)
continue;
if (cls.allow_anyparticles || currententity->visframe) //allowed or static
{
if (currententity->model->particleeffect>=0)
{
if (currententity->model->particleengulphs)
{
if (gl_part_flame.value)
{
continue;
}
}
}
}
switch (currententity->model->type)
{
case mod_alias:
// R_DrawGAliasModelLighting (currententity);
break;
case mod_brush:
PPL_LightBModelTextures (currententity, light);
break;
default:
break;
}
}
}
void PPL_FullBrights(model_t *model)
{
int tn;
msurface_t *s;
texture_t *t;
glColor3f(1,1,1);
glDepthMask(0); //don't bother writing depth
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glShadeModel(GL_FLAT);
glEnable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
for (tn=0 ; tn<model->numtextures ; tn++)
{
t = model->textures[tn];
if (!t)
continue;
s = t->texturechain;
if (!s)
continue;
PPL_FullBrightTextureChain(s);
t->texturechain=NULL;
}
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glDepthMask(1);
}
void PPL_FullBrightBModelTextures(entity_t *e)
{
int i;
model_t *model;
msurface_t *s;
msurface_t *chain = NULL;
glPushMatrix();
R_RotateForEntity(e);
currentmodel = model = e->model;
s = model->surfaces+model->firstmodelsurface;
glColor4f(1, 1, 1, 1);
glDepthMask(0); //don't bother writing depth
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glShadeModel(GL_FLAT);
glEnable(GL_BLEND);
glEnable(GL_TEXTURE_2D);
for (s = model->surfaces+model->firstmodelsurface,i = 0; i < model->nummodelsurfaces; i++, s++)
{
if (chain && s->texinfo->texture != chain->texinfo->texture) //last surface or not the same as the next
{
PPL_FullBrightTextureChain(chain);
chain = NULL;
}
s->texturechain = chain;
chain = s;
}
if (chain)
PPL_FullBrightTextureChain(chain);
glPopMatrix();
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glDepthMask(1);
}
//draw the bumps on the models for each light.
void PPL_DrawEntFullBrights(void)
{
int i;
PPL_FullBrights(cl.worldmodel);
if (!r_drawentities.value)
return;
for (i=0 ; i<cl_numvisedicts ; i++)
{
currententity = &cl_visedicts[i];
if (cl.viewentity[r_refdef.currentplayernum] && currententity->keynum == cl.viewentity[r_refdef.currentplayernum])
continue;
if (!currententity->model)
continue;
if (cls.allow_anyparticles || currententity->visframe) //allowed or static
{
if (currententity->model->particleeffect>=0)
{
if (currententity->model->particleengulphs)
{
if (gl_part_flame.value)
{
continue;
}
}
}
}
switch (currententity->model->type)
{
case mod_alias:
// R_DrawGAliasModelLighting (currententity);
break;
case mod_brush:
PPL_FullBrightBModelTextures (currententity);
break;
default:
break;
}
}
}
qboolean PPL_VisOverlaps(qbyte *v1, qbyte *v2)
{
int i, m;
m = (cl.worldmodel->numleafs-1)>>3;
for (i=0 ; i<m ; i++)
{
if (v1[i] & v2[i])
return true;
}
return false;
}
int r_shadowframe;
void PPL_RecursiveWorldNode_r (mnode_t *node)
{
int c, side;
mplane_t *plane;
msurface_t *surf, **mark;
mleaf_t *pleaf;
double dot;
glpoly_t *p;
int v;
#ifndef EDGEOPTIMISE
float *v2;
vec3_t v4;
#endif
float *v1;
vec3_t v3;
if (node->shadowframe != r_shadowframe)
return;
if (node->contents == Q1CONTENTS_SOLID)
return; // solid
// if (R_CullBox (node->minmaxs, node->minmaxs+3))
// return;
// if a leaf node, draw stuff
if (node->contents < 0)
{
pleaf = (mleaf_t *)node;
mark = pleaf->firstmarksurface;
c = pleaf->nummarksurfaces;
if (c)
{
do
{
(*mark++)->shadowframe = r_shadowframe;
} while (--c);
}
return;
}
// node is just a decision point, so go down the apropriate sides
// find which side of the node we are on
plane = node->plane;
switch (plane->type)
{
case PLANE_X:
dot = modelorg[0] - plane->dist;
break;
case PLANE_Y:
dot = modelorg[1] - plane->dist;
break;
case PLANE_Z:
dot = modelorg[2] - plane->dist;
break;
default:
dot = DotProduct (modelorg, plane->normal) - plane->dist;
break;
}
if (dot >= 0)
side = 0;
else
side = 1;
// recurse down the children, front side first
PPL_RecursiveWorldNode_r (node->children[side]);
// draw stuff
c = node->numsurfaces;
if (c)
{
surf = cl.worldmodel->surfaces + node->firstsurface;
{
for ( ; c ; c--, surf++)
{
if (surf->shadowframe != r_shadowframe)
continue;
// if ((dot < 0) ^ !!(surf->flags & SURF_PLANEBACK))
// continue; // wrong side
// if (surf->flags & SURF_PLANEBACK)
// continue;
if (surf->flags & (SURF_DRAWALPHA | SURF_DRAWTILED))
{ // no shadows
continue;
}
//is the light on the right side?
if (surf->flags & SURF_PLANEBACK)
{//inverted normal.
if (DotProduct(surf->plane->normal, lightorg)-surf->plane->dist <= -lightradius)
continue;
}
else
{
if (DotProduct(surf->plane->normal, lightorg)-surf->plane->dist >= lightradius)
continue;
}
if (fabs(surf->center[0] - lightorg[0]) > lightradius+surf->radius ||
fabs(surf->center[1] - lightorg[1]) > lightradius+surf->radius ||
fabs(surf->center[2] - lightorg[2]) > lightradius+surf->radius)
continue;
#define PROJECTION_DISTANCE (float)0x7fffffff
#ifdef EDGEOPTIMISE
//build a list of the edges that are to be drawn.
for (v = 0; v < surf->numedges; v++)
{
int e, delta;
e = cl.worldmodel->surfedges[surf->firstedge+v];
//negative edge means backwards edge.
if (e < 0)
{
e=-e;
delta = -1;
}
else
{
delta = 1;
}
if (!edge[e].count)
{
if (firstedge)
edge[firstedge].prev = e;
edge[e].next = firstedge;
edge[e].prev = 0;
firstedge = e;
edge[e].count = delta;
}
else
{
edge[e].count += delta;
if (!edge[e].count) //unlink
{
if (edge[e].next)
{
edge[edge[e].next].prev = edge[e].prev;
}
if (edge[e].prev)
edge[edge[e].prev].next = edge[e].next;
else
firstedge = edge[e].next;
}
}
}
#endif
for (p = surf->polys; p; p=p->next)
{
//front face
glBegin(GL_POLYGON);
for (v = 0; v < p->numverts; v++)
glVertex3fv(p->verts[v]);
glEnd();
#ifndef EDGEOPTIMISE
for (v = 0; v < p->numverts; v++)
{
//border
v1 = p->verts[v];
v2 = p->verts[( v+1 )%p->numverts];
//get positions of v3 and v4 based on the light position
v3[0] = ( v1[0]-lightorg[0] )*PROJECTION_DISTANCE;
v3[1] = ( v1[1]-lightorg[1] )*PROJECTION_DISTANCE;
v3[2] = ( v1[2]-lightorg[2] )*PROJECTION_DISTANCE;
v4[0] = ( v2[0]-lightorg[0] )*PROJECTION_DISTANCE;
v4[1] = ( v2[1]-lightorg[1] )*PROJECTION_DISTANCE;
v4[2] = ( v2[2]-lightorg[2] )*PROJECTION_DISTANCE;
//Now draw the quad from the two verts to the projected light
//verts
glBegin( GL_QUADS );
glVertex3f( v1[0]+v3[0], v1[1]+v3[1], v1[2]+v3[2] );
glVertex3f( v2[0]+v4[0], v2[1]+v4[1], v2[2]+v4[2] );
glVertex3f( v2[0], v2[1], v2[2] );
glVertex3f( v1[0], v1[1], v1[2] );
glEnd();
}
#endif
//back
glBegin(GL_POLYGON);
for (v = p->numverts-1; v >=0; v--)
{
v1 = p->verts[v];
v3[0] = ( v1[0]-lightorg[0] )*PROJECTION_DISTANCE;
v3[1] = ( v1[1]-lightorg[1] )*PROJECTION_DISTANCE;
v3[2] = ( v1[2]-lightorg[2] )*PROJECTION_DISTANCE;
glVertex3f( v1[0]+v3[0], v1[1]+v3[1], v1[2]+v3[2] );
}
glEnd();
}
}
}
}
// recurse down the back side
PPL_RecursiveWorldNode_r (node->children[!side]);
}
//2 changes, but otherwise the same
void PPL_RecursiveWorldNodeQ2_r (mnode_t *node)
{
int c, side;
mplane_t *plane;
msurface_t *surf, **mark;
mleaf_t *pleaf;
double dot;
glpoly_t *p;
int v;
#ifndef EDGEOPTIMISE
float *v2;
vec3_t v4;
#endif
float *v1;
vec3_t v3;
if (node->contents == Q2CONTENTS_SOLID)
return; // solid
if (node->shadowframe != r_shadowframe)
return;
// if (R_CullBox (node->minmaxs, node->minmaxs+3))
// return;
// if a leaf node, draw stuff
if (node->contents != -1)
{
pleaf = (mleaf_t *)node;
mark = pleaf->firstmarksurface;
c = pleaf->nummarksurfaces;
if (c)
{
do
{
(*mark++)->shadowframe = r_shadowframe;
} while (--c);
}
return;
}
// node is just a decision point, so go down the apropriate sides
// find which side of the node we are on
plane = node->plane;
switch (plane->type)
{
case PLANE_X:
dot = modelorg[0] - plane->dist;
break;
case PLANE_Y:
dot = modelorg[1] - plane->dist;
break;
case PLANE_Z:
dot = modelorg[2] - plane->dist;
break;
default:
dot = DotProduct (modelorg, plane->normal) - plane->dist;
break;
}
if (dot >= 0)
side = 0;
else
side = 1;
// recurse down the children, front side first
PPL_RecursiveWorldNodeQ2_r (node->children[side]);
// draw stuff
c = node->numsurfaces;
if (c)
{
surf = cl.worldmodel->surfaces + node->firstsurface;
{
for ( ; c ; c--, surf++)
{
if (surf->shadowframe != r_shadowframe)
continue;
// if ((dot < 0) ^ !!(surf->flags & SURF_PLANEBACK))
// continue; // wrong side
// if (surf->flags & SURF_PLANEBACK)
// continue;
if (surf->flags & SURF_PLANEBACK)
{//inverted normal.
if (DotProduct(surf->plane->normal, lightorg)-surf->plane->dist >= 0)
continue;
}
else
{
if (DotProduct(surf->plane->normal, lightorg)-surf->plane->dist <= 0)
continue;
}
#define PROJECTION_DISTANCE (float)0x7fffffff
if (surf->flags & (SURF_DRAWALPHA | SURF_DRAWTILED))
{ // no shadows
continue;
}
#ifdef EDGEOPTIMISE
//build a list of the edges that are to be drawn.
for (v = 0; v < surf->numedges; v++)
{
int e, delta;
e = cl.worldmodel->surfedges[surf->firstedge+v];
//negative edge means backwards edge.
if (e < 0)
{
e=-e;
delta = -1;
}
else
{
delta = 1;
}
if (!edge[e].count)
{
if (firstedge)
edge[firstedge].prev = e;
edge[e].next = firstedge;
edge[e].prev = 0;
firstedge = e;
edge[e].count = delta;
}
else
{
edge[e].count += delta;
if (!edge[e].count) //unlink
{
if (edge[e].next)
{
edge[edge[e].next].prev = edge[e].prev;
}
if (edge[e].prev)
edge[edge[e].prev].next = edge[e].next;
else
firstedge = edge[e].next;
}
}
}
#endif
for (p = surf->polys; p; p=p->next)
{
//front face
glBegin(GL_POLYGON);
for (v = 0; v < p->numverts; v++)
glVertex3fv(p->verts[v]);
glEnd();
#ifndef EDGEOPTIMISE
for (v = 0; v < p->numverts; v++)
{
//border
v1 = p->verts[v];
v2 = p->verts[( v+1 )%p->numverts];
//get positions of v3 and v4 based on the light position
v3[0] = ( v1[0]-lightorg[0] )*PROJECTION_DISTANCE;
v3[1] = ( v1[1]-lightorg[1] )*PROJECTION_DISTANCE;
v3[2] = ( v1[2]-lightorg[2] )*PROJECTION_DISTANCE;
v4[0] = ( v2[0]-lightorg[0] )*PROJECTION_DISTANCE;
v4[1] = ( v2[1]-lightorg[1] )*PROJECTION_DISTANCE;
v4[2] = ( v2[2]-lightorg[2] )*PROJECTION_DISTANCE;
//Now draw the quad from the two verts to the projected light
//verts
glBegin( GL_QUAD_STRIP );
glVertex3f( v1[0], v1[1], v1[2] );
glVertex3f( v1[0]+v3[0], v1[1]+v3[1], v1[2]+v3[2] );
glVertex3f( v2[0], v2[1], v2[2] );
glVertex3f( v2[0]+v4[0], v2[1]+v4[1], v2[2]+v4[2] );
glEnd();
}
#endif
//back
glBegin(GL_POLYGON);
for (v = p->numverts-1; v >=0; v--)
{
v1 = p->verts[v];
v3[0] = ( v1[0]-lightorg[0] )*PROJECTION_DISTANCE;
v3[1] = ( v1[1]-lightorg[1] )*PROJECTION_DISTANCE;
v3[2] = ( v1[2]-lightorg[2] )*PROJECTION_DISTANCE;
glVertex3f( v1[0]+v3[0], v1[1]+v3[1], v1[2]+v3[2] );
}
glEnd();
}
}
}
}
// recurse down the back side
PPL_RecursiveWorldNodeQ2_r (node->children[!side]);
}
void PPL_RecursiveWorldNodeQ3_r (mnode_t *node)
{
int c, side;
mplane_t *plane;
msurface_t *surf, **mark;
mleaf_t *pleaf;
double dot;
glpoly_t *p;
int v;
//#ifndef EDGEOPTIMISE
float *v2;
vec3_t v4;
//#endif
float *v1;
vec3_t v3;
if (node->contents == Q2CONTENTS_SOLID)
return; // solid
if (node->shadowframe != r_shadowframe)
return;
// if (R_CullBox (node->minmaxs, node->minmaxs+3))
// return;
// if a leaf node, draw stuff
if (node->contents != -1)
{
pleaf = (mleaf_t *)node;
mark = pleaf->firstmarksurface;
c = pleaf->nummarksurfaces;
if (c)
{
do
{
surf = *mark;
(*mark++)->shadowframe = r_shadowframe;
/* if (surf->shadowframe != r_shadowframe)
continue;
*/
// if ((dot < 0) ^ !!(surf->flags & SURF_PLANEBACK))
// continue; // wrong side
// if (surf->flags & SURF_PLANEBACK)
// continue;
if (surf->flags & SURF_PLANEBACK)
{//inverted normal.
if (DotProduct(surf->plane->normal, lightorg)-surf->plane->dist <= -lightradius)
continue;
}
else
{
if (DotProduct(surf->plane->normal, lightorg)-surf->plane->dist >= lightradius)
continue;
}
#define PROJECTION_DISTANCE (float)0x7fffffff
/*if (surf->flags & (SURF_DRAWALPHA | SURF_DRAWTILED))
{ // no shadows
continue;
}*/
/*#ifdef EDGEOPTIMISE
//build a list of the edges that are to be drawn.
for (v = 0; v < surf->numedges; v++)
{
int e, delta;
e = cl.worldmodel->surfedges[surf->firstedge+v];
//negative edge means backwards edge.
if (e < 0)
{
e=-e;
delta = -1;
}
else
{
delta = 1;
}
if (!edge[e].count)
{
if (firstedge)
edge[firstedge].prev = e;
edge[e].next = firstedge;
edge[e].prev = 0;
firstedge = e;
edge[e].count = delta;
}
else
{
edge[e].count += delta;
if (!edge[e].count) //unlink
{
if (edge[e].next)
{
edge[edge[e].next].prev = edge[e].prev;
}
if (edge[e].prev)
edge[edge[e].prev].next = edge[e].next;
else
firstedge = edge[e].next;
}
}
}
#endif*/
for (p = surf->polys; p; p=p->next)
{
//front face
glBegin(GL_POLYGON);
for (v = 0; v < p->numverts; v++)
glVertex3fv(p->verts[v]);
glEnd();
//#ifndef EDGEOPTIMISE
for (v = 0; v < p->numverts; v++)
{
//border
v1 = p->verts[v];
v2 = p->verts[( v+1 )%p->numverts];
//get positions of v3 and v4 based on the light position
v3[0] = ( v1[0]-lightorg[0] )*PROJECTION_DISTANCE;
v3[1] = ( v1[1]-lightorg[1] )*PROJECTION_DISTANCE;
v3[2] = ( v1[2]-lightorg[2] )*PROJECTION_DISTANCE;
v4[0] = ( v2[0]-lightorg[0] )*PROJECTION_DISTANCE;
v4[1] = ( v2[1]-lightorg[1] )*PROJECTION_DISTANCE;
v4[2] = ( v2[2]-lightorg[2] )*PROJECTION_DISTANCE;
//Now draw the quad from the two verts to the projected light
//verts
glBegin( GL_QUAD_STRIP );
glVertex3f( v1[0], v1[1], v1[2] );
glVertex3f( v1[0]+v3[0], v1[1]+v3[1], v1[2]+v3[2] );
glVertex3f( v2[0], v2[1], v2[2] );
glVertex3f( v2[0]+v4[0], v2[1]+v4[1], v2[2]+v4[2] );
glEnd();
}
//#endif
//back
glBegin(GL_POLYGON);
for (v = p->numverts-1; v >=0; v--)
{
v1 = p->verts[v];
v3[0] = ( v1[0]-lightorg[0] )*PROJECTION_DISTANCE;
v3[1] = ( v1[1]-lightorg[1] )*PROJECTION_DISTANCE;
v3[2] = ( v1[2]-lightorg[2] )*PROJECTION_DISTANCE;
glVertex3f( v1[0]+v3[0], v1[1]+v3[1], v1[2]+v3[2] );
}
glEnd();
}
} while (--c);
}
return;
}
// node is just a decision point, so go down the apropriate sides
// find which side of the node we are on
plane = node->plane;
switch (plane->type)
{
case PLANE_X:
dot = modelorg[0] - plane->dist;
break;
case PLANE_Y:
dot = modelorg[1] - plane->dist;
break;
case PLANE_Z:
dot = modelorg[2] - plane->dist;
break;
default:
dot = DotProduct (modelorg, plane->normal) - plane->dist;
break;
}
if (dot >= 0)
side = 0;
else
side = 1;
// recurse down the children, front side first
PPL_RecursiveWorldNodeQ3_r (node->children[side]);
// draw stuff
c = node->numsurfaces;
if (c)
{
surf = cl.worldmodel->surfaces + node->firstsurface;
{
for ( ; c ; c--, surf++)
{
}
}
}
// recurse down the back side
PPL_RecursiveWorldNodeQ3_r (node->children[!side]);
}
void PPL_RecursiveWorldNode (dlight_t *dl)
{
float *v1, *v2;
vec3_t v3, v4;
lightradius = dl->radius;
lightorg[0] = dl->origin[0]+0.5;
lightorg[1] = dl->origin[1]+0.5;
lightorg[2] = dl->origin[2]+0.5;
modelorg[0] = lightorg[0];
modelorg[1] = lightorg[1];
modelorg[2] = lightorg[2];
if (cl.worldmodel->fromgame == fg_quake3)
PPL_RecursiveWorldNodeQ3_r(cl.worldmodel->nodes);
else if (cl.worldmodel->fromgame == fg_quake2)
PPL_RecursiveWorldNodeQ2_r(cl.worldmodel->nodes);
else
PPL_RecursiveWorldNode_r(cl.worldmodel->nodes);
#ifdef EDGEOPTIMISE
glBegin( GL_QUADS );
while(firstedge)
// for (firstedge = 0; firstedge < cl.worldmodel->numedges; firstedge++)
{
//border
v1 = cl.worldmodel->vertexes[cl.worldmodel->edges[firstedge].v[0]].position;
v2 = cl.worldmodel->vertexes[cl.worldmodel->edges[firstedge].v[1]].position;
//get positions of v3 and v4 based on the light position
v3[0] = ( v1[0]-lightorg[0] )*PROJECTION_DISTANCE;
v3[1] = ( v1[1]-lightorg[1] )*PROJECTION_DISTANCE;
v3[2] = ( v1[2]-lightorg[2] )*PROJECTION_DISTANCE;
v4[0] = ( v2[0]-lightorg[0] )*PROJECTION_DISTANCE;
v4[1] = ( v2[1]-lightorg[1] )*PROJECTION_DISTANCE;
v4[2] = ( v2[2]-lightorg[2] )*PROJECTION_DISTANCE;
//Now draw the quad from the two verts to the projected light
//verts
while (edge[firstedge].count > 0)
{
glVertex3f( v1[0]+v3[0], v1[1]+v3[1], v1[2]+v3[2] );
glVertex3f( v2[0]+v4[0], v2[1]+v4[1], v2[2]+v4[2] );
glVertex3f( v2[0], v2[1], v2[2] );
glVertex3f( v1[0], v1[1], v1[2] );
edge[firstedge].count--;
}
while (edge[firstedge].count < 0)
{
glVertex3f( v1[0], v1[1], v1[2] );
glVertex3f( v2[0], v2[1], v2[2] );
glVertex3f( v2[0]+v4[0], v2[1]+v4[1], v2[2]+v4[2] );
glVertex3f( v1[0]+v3[0], v1[1]+v3[1], v1[2]+v3[2] );
edge[firstedge].count++;
}
firstedge = edge[firstedge].next;
}
glEnd();
for (firstedge = 0; firstedge < cl.worldmodel->numedges; firstedge++)
edge[firstedge].count = 0;
firstedge=0;
#endif
}
void PPL_DrawBrushModel(dlight_t *dl, entity_t *e)
{
glpoly_t *p;
int v;
float *v1, *v2;
vec3_t v3, v4;
int i;
model_t *model;
msurface_t *surf;
RotateLightVector(e->angles, e->origin, dl->origin, lightorg);
glPushMatrix();
R_RotateForEntity(e);
model = e->model;
surf = model->surfaces+model->firstmodelsurface;
for (i = 0; i < model->nummodelsurfaces; i++, surf++)
{
if (surf->flags & SURF_PLANEBACK)
{//inverted normal.
if (DotProduct(surf->plane->normal, lightorg)-surf->plane->dist >= -0.1)
continue;
}
else
{
if (DotProduct(surf->plane->normal, lightorg)-surf->plane->dist <= 0.1)
continue;
}
#define PROJECTION_DISTANCE (float)0x7fffffff
if (surf->flags & (SURF_DRAWALPHA | SURF_DRAWTILED))
{ // no shadows
continue;
}
for (p = surf->polys; p; p=p->next)
{
//front face
glBegin(GL_POLYGON);
for (v = 0; v < p->numverts; v++)
glVertex3fv(p->verts[v]);
glEnd();
for (v = 0; v < p->numverts; v++)
{
//border
v1 = p->verts[v];
v2 = p->verts[( v+1 )%p->numverts];
//get positions of v3 and v4 based on the light position
v3[0] = ( v1[0]-lightorg[0] )*PROJECTION_DISTANCE;
v3[1] = ( v1[1]-lightorg[1] )*PROJECTION_DISTANCE;
v3[2] = ( v1[2]-lightorg[2] )*PROJECTION_DISTANCE;
v4[0] = ( v2[0]-lightorg[0] )*PROJECTION_DISTANCE;
v4[1] = ( v2[1]-lightorg[1] )*PROJECTION_DISTANCE;
v4[2] = ( v2[2]-lightorg[2] )*PROJECTION_DISTANCE;
//Now draw the quad from the two verts to the projected light
//verts
glBegin( GL_QUAD_STRIP );
glVertex3f( v1[0], v1[1], v1[2] );
glVertex3f( v1[0]+v3[0], v1[1]+v3[1], v1[2]+v3[2] );
glVertex3f( v2[0], v2[1], v2[2] );
glVertex3f( v2[0]+v4[0], v2[1]+v4[1], v2[2]+v4[2] );
glEnd();
}
//back
glBegin(GL_POLYGON);
for (v = p->numverts-1; v >=0; v--)
{
v1 = p->verts[v];
v3[0] = ( v1[0]-lightorg[0] )*PROJECTION_DISTANCE;
v3[1] = ( v1[1]-lightorg[1] )*PROJECTION_DISTANCE;
v3[2] = ( v1[2]-lightorg[2] )*PROJECTION_DISTANCE;
glVertex3f( v1[0]+v3[0], v1[1]+v3[1], v1[2]+v3[2] );
}
glEnd();
}
}
glPopMatrix();
}
void PPL_DrawShadowMeshes(dlight_t *dl)
{
int i;
if (!r_drawentities.value)
return;
// draw sprites seperately, because of alpha blending
for (i=0 ; i<cl_numvisedicts ; i++)
{
currententity = &cl_visedicts[i];
if (cl.viewentity[r_refdef.currentplayernum] && currententity->keynum == cl.viewentity[r_refdef.currentplayernum])
continue;
if (!currententity->model)
continue;
if (dl->key == currententity->keynum)
continue;
if (currententity->flags & Q2RF_WEAPONMODEL)
continue; //weapon models don't cast shadows.
if (cls.allow_anyparticles || currententity->visframe) //allowed or static
{
if (currententity->model->particleeffect>=0)
{
if (currententity->model->particleengulphs)
{
if (gl_part_flame.value)
{
continue;
}
}
}
}
switch (currententity->model->type)
{
case mod_alias:
R_DrawGAliasShadowVolume (currententity, dl->origin, dl->radius);
break;
case mod_brush:
PPL_DrawBrushModel (dl, currententity);
break;
default:
break;
}
}
}
void CL_NewDlight (int key, float x, float y, float z, float radius, float time,
int type);
//generates stencil shadows of the world geometry.
//redraws world geometry
void PPL_AddLight(dlight_t *dl)
{
int i;
int sdecrw;
int sincrw;
mnode_t *node;
int leaf;
qbyte *lvis;
qbyte *vvis;
qbyte lvisb[MAX_MAP_LEAFS/8];
qbyte vvisb[MAX_MAP_LEAFS/8];
vec3_t mins;
vec3_t maxs;
mins[0] = dl->origin[0] - dl->radius;
mins[1] = dl->origin[1] - dl->radius;
mins[2] = dl->origin[2] - dl->radius;
maxs[0] = dl->origin[0] + dl->radius;
maxs[1] = dl->origin[1] + dl->radius;
maxs[2] = dl->origin[2] + dl->radius;
if (R_CullBox(mins, maxs))
return;
if (cl.worldmodel->fromgame == fg_quake3)
i = cl.worldmodel->funcs.LeafForPoint(r_refdef.vieworg, cl.worldmodel);
else
i = r_viewleaf - cl.worldmodel->leafs;
leaf = cl.worldmodel->funcs.LeafForPoint(dl->origin, cl.worldmodel);
lvis = cl.worldmodel->funcs.LeafPVS(leaf, cl.worldmodel, lvisb);
vvis = cl.worldmodel->funcs.LeafPVS(i, cl.worldmodel, vvisb);
// if (!(lvis[i>>3] & (1<<(i&7)))) //light might not be visible, but it's effects probably should be.
// return;
if (!PPL_VisOverlaps(lvis, vvis)) //The two viewing areas do not intersect.
return;
#ifdef Q3BSPS
if (cl.worldmodel->fromgame == fg_quake3)
{
mleaf_t *leaf;
r_shadowframe++;
for (i=0, leaf=cl.worldmodel->leafs; i<cl.worldmodel->numleafs ; i++, leaf++)
{
node = (mnode_t *)leaf;
while (node)
{
if (node->shadowframe == r_shadowframe)
break;
node->shadowframe = r_shadowframe;
node = node->parent;
}
}
}
else
#endif
#ifdef Q2BSPS
if (cl.worldmodel->fromgame == fg_quake2)
{
mleaf_t *leaf;
int cluster;
r_shadowframe++;
for (i=0, leaf=cl.worldmodel->leafs; i<cl.worldmodel->numleafs ; i++, leaf++)
{
cluster = leaf->cluster;
if (cluster == -1)
continue;
if (lvis[cluster>>3] & (1<<(cluster&7)))
{
node = (mnode_t *)leaf;
do
{
if (node->shadowframe == r_shadowframe)
break;
node->shadowframe = r_shadowframe;
node = node->parent;
} while (node);
}
}
}
else
#endif
{
if (r_novis.value != 2)
{
r_shadowframe++;
//variation on mark leaves
for (i=0 ; i<cl.worldmodel->numleafs ; i++)
{
if (lvis[i>>3] & (1<<(i&7)))// && vvis[i>>3] & (1<<(i&7)))
{
node = (mnode_t *)&cl.worldmodel->leafs[i+1];
do
{
if (node->shadowframe == r_shadowframe)
break;
node->shadowframe = r_shadowframe;
node = node->parent;
} while (node);
}
}
}
}
glStencilFunc( GL_ALWAYS, 1, ~0 );
glDisable(GL_BLEND);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glDisable(GL_TEXTURE_2D);
glColorMask( GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE );
glDepthMask(0);
if (gldepthfunc==GL_LEQUAL)
glDepthFunc(GL_LESS);
else
glDepthFunc(GL_GREATER);
glEnable(GL_DEPTH_TEST);
glEnable(GL_STENCIL_TEST);
sincrw = GL_INCR;
sdecrw = GL_DECR;
if (gl_ext_stencil_wrap)
{ //minamlise damage...
sincrw = GL_INCR_WRAP_EXT;
sdecrw = GL_DECR_WRAP_EXT;
}
//our stencil writes.
#ifdef _DEBUG
if (r_shadows.value == 666) //testing (visible shadow volumes)
{
glColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
glColor3f(dl->color[0], dl->color[1], dl->color[2]);
glDisable(GL_STENCIL_TEST);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
PPL_RecursiveWorldNode(dl);
PPL_DrawShadowMeshes(dl);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
}
else
#endif
if (qglStencilOpSeparateATI && r_shadows.value != 667)//GL_ATI_separate_stencil
{
glClearStencil(0);
glClear(GL_STENCIL_BUFFER_BIT);
glDisable(GL_CULL_FACE);
qglStencilOpSeparateATI(GL_BACK, GL_KEEP, sincrw, GL_KEEP);
qglStencilOpSeparateATI(GL_FRONT, GL_KEEP, sdecrw, GL_KEEP);
PPL_RecursiveWorldNode(dl);
PPL_DrawShadowMeshes(dl);
qglStencilOpSeparateATI(GL_FRONT_AND_BACK, GL_KEEP, GL_KEEP, GL_KEEP);
glEnable(GL_CULL_FACE);
glStencilFunc( GL_EQUAL, 0, ~0 );
}
else if (qglActiveStencilFaceEXT && r_shadows.value != 667) //NVidias variation on a theme. (GFFX class)
{
glClearStencil(0);
glClear(GL_STENCIL_BUFFER_BIT);
glDisable(GL_CULL_FACE);
glCullFace(GL_BACK);
qglActiveStencilFaceEXT(GL_BACK);
glStencilOp(GL_KEEP, sincrw, GL_KEEP);
qglActiveStencilFaceEXT(GL_FRONT);
glStencilOp(GL_KEEP, sdecrw, GL_KEEP);
PPL_RecursiveWorldNode(dl);
PPL_DrawShadowMeshes(dl);
qglActiveStencilFaceEXT(GL_BACK);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
qglActiveStencilFaceEXT(GL_FRONT);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
glEnable(GL_CULL_FACE);
glStencilFunc( GL_EQUAL, 0, ~0 );
}
else //your graphics card sucks and lacks efficient stencil shadow techniques.
{ //centered around 0. Will only be increased then decreased less.
glClearStencil(0);
glClear(GL_STENCIL_BUFFER_BIT);
glCullFace(GL_BACK);
glStencilOp(GL_KEEP, sincrw, GL_KEEP);
PPL_RecursiveWorldNode(dl);
PPL_DrawShadowMeshes(dl);
glCullFace(GL_FRONT);
glStencilOp(GL_KEEP, sdecrw, GL_KEEP);
PPL_RecursiveWorldNode(dl);
PPL_DrawShadowMeshes(dl);
glStencilFunc( GL_EQUAL, 0, ~0 );
}
//end stencil writing.
glEnable(GL_DEPTH_TEST);
glDepthMask(0);
glColorMask( GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE );
glStencilOp( GL_KEEP, GL_KEEP, GL_KEEP );
glCullFace(GL_FRONT);
glColor3f(1,1,1);
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE);
glColor4f(dl->color[0], dl->color[1], dl->color[2], 1);
glDepthFunc(GL_EQUAL);
lightorg[0] = dl->origin[0];
lightorg[1] = dl->origin[1];
lightorg[2] = dl->origin[2];
PPL_DrawEntLighting(dl);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDepthMask(1);
glDepthFunc(gldepthfunc);
glEnable(GL_DEPTH_TEST);
glDisable(GL_STENCIL_TEST);
}
void PPL_DrawWorld (void)
{
dlight_t *l;
int i;
int maxshadowlights = gl_maxshadowlights.value;
if (maxshadowlights < 1)
maxshadowlights = 1;
PPL_BaseTextures(cl.worldmodel);
PPL_BaseEntTextures();
// CL_NewDlightRGB(1, r_refdef.vieworg[0], r_refdef.vieworg[1]-16, r_refdef.vieworg[2]-24, 128, 1, 1, 1, 1);
if (r_shadows.value && glStencilFunc)
{
if (cl.worldmodel->fromgame == fg_quake || cl.worldmodel->fromgame == fg_halflife || cl.worldmodel->fromgame == fg_quake2 /*|| cl.worldmodel->fromgame == fg_quake3*/)
{
for (l = cl_dlights, i=0 ; i<MAX_DLIGHTS ; i++, l++)
{
if (l->die < cl.time || !l->radius || l->noppl)
continue;
if (!maxshadowlights--)
break;
l->color[0]*=2.5;
l->color[1]*=2.5;
l->color[2]*=2.5;
PPL_AddLight(l);
l->color[0]/=2.5;
l->color[1]/=2.5;
l->color[2]/=2.5;
}
glEnable(GL_TEXTURE_2D);
}
}
PPL_DrawEntFullBrights();
}
#endif
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