cvar_t gl_multitexture = {"gl_multitexture", "1"};
cvar_t gl_vertexarrays = {"gl_vertexarrays", "1"};
+typedef struct translistitem_s
+{
+ transpoly_t *poly;
+ struct translistitem_s *next;
+}
+translistitem;
+
+translistitem translist[MAX_TRANSPOLYS];
+translistitem *currenttranslist;
+
+translistitem *translisthash[4096];
+
+float transviewdist; // distance of view origin along the view normal
+
+float transreciptable[256];
+
void glpoly_init()
{
+ int i;
Cvar_RegisterVariable (&gl_multitexture);
Cvar_RegisterVariable (&gl_vertexarrays);
transvert = malloc(MAX_TRANSVERTS * sizeof(transvert_t));
wallpoly = malloc(MAX_WALLPOLYS * sizeof(wallpoly_t));
skyvert = malloc(MAX_SKYVERTS * sizeof(skyvert_t));
skypoly = malloc(MAX_SKYPOLYS * sizeof(skypoly_t));
+ transreciptable[0] = 0.0f;
+ for (i = 1;i < 256;i++)
+ transreciptable[i] = 1.0f / i;
}
void transpolyclear()
{
currenttranspoly = currenttransvert = 0;
+ currenttranslist = translist;
+ memset(translisthash, 0, sizeof(translisthash));
+ transviewdist = DotProduct(r_refdef.vieworg, vpn);
}
+// turned into a #define
+/*
void transpolybegin(int texnum, int glowtexnum, int fogtexnum, int transpolytype)
{
if (currenttranspoly >= MAX_TRANSPOLYS || currenttransvert >= MAX_TRANSVERTS)
transpoly[currenttranspoly].verts = 0;
// transpoly[currenttranspoly].ndist = 0; // clear the normal
}
+*/
// turned into a #define
/*
void transpolyend()
{
- if (currenttranspoly >= MAX_TRANSPOLYS)
+ float center, d, maxdist;
+ int i;
+ transvert_t *v;
+ if (currenttranspoly >= MAX_TRANSPOLYS || currenttransvert >= MAX_TRANSVERTS)
return;
if (transpoly[currenttranspoly].verts < 3) // skip invalid polygons
{
currenttransvert = transpoly[currenttranspoly].firstvert; // reset vert pointer
return;
}
- if (currenttransvert >= MAX_TRANSVERTS)
+ center = 0;
+ maxdist = -1000000000000000.0f; // eh, it's definitely behind it, so...
+ for (i = 0,v = &transvert[transpoly[currenttranspoly].firstvert];i < transpoly[currenttranspoly].verts;i++, v++)
+ {
+ d = DotProduct(v->v, vpn);
+ center += d;
+ if (d > maxdist)
+ maxdist = d;
+ }
+ maxdist -= transviewdist;
+ if (maxdist < 4.0f) // behind view
+ {
+ currenttransvert = transpoly[currenttranspoly].firstvert; // reset vert pointer
return;
+ }
+ center *= transreciptable[transpoly[currenttranspoly].verts];
+ center -= transviewdist;
+ i = bound(0, (int) center, 4095);
+ currenttranslist->next = translisthash[i];
+ currenttranslist->poly = transpoly + currenttranspoly;
+ translisthash[i] = currenttranslist;
+ currenttranslist++;
currenttranspoly++;
}
int transpolyindices;
+extern qboolean isG200;
+
+/*
void transpolyrenderminmax()
{
int i, j, k, lastvert;
if (max < 4) // free to check here, so skip polys behind the view
continue;
transpoly[i].distance = average;
+*/
/*
transpoly[i].mindistance = min;
transpoly[i].maxdistance = max;
;
}
*/
+/*
// sorted insert
for (j = 0;j < transpolyindices;j++)
if (transpoly[transpolyindex[j]].distance < average)
transpolyindex[j] = i;
}
}
-
-// LordHavoc: qsort compare function
+*/
/*
+// LordHavoc: qsort compare function
int transpolyqsort(const void *ia, const void *ib)
{
transpoly_t *a, *b;
return -1; // (-1) a is behind b
return j == b->verts; // (1) a is infront of b (0) a and b intersect
// return (transpoly[*((unsigned short *)ib)].mindistance + transpoly[*((unsigned short *)ib)].maxdistance) - (transpoly[*((unsigned short *)ia)].mindistance + transpoly[*((unsigned short *)ia)].maxdistance);
+ */
+/*
+ return ((transpoly_t*)ia)->distance - ((transpoly_t*)ib)->distance;
}
*/
-extern qboolean isG200;
+/*
+int transpolyqsort(const void *ia, const void *ib)
+{
+ return (transpoly[*((unsigned short *)ib)].distance - transpoly[*((unsigned short *)ia)].distance);
+}
+*/
/*
-void transpolysort()
+void transpolyrenderminmax()
{
+ int i, j, lastvert;
+ vec_t d, max, viewdist, average;
+ transpolyindices = 0;
+ viewdist = DotProduct(r_refdef.vieworg, vpn);
+ for (i = 0;i < currenttranspoly;i++)
+ {
+ if (transpoly[i].verts < 3) // only process valid polygons
+ continue;
+ max = -1000000;
+ lastvert = transpoly[i].firstvert + transpoly[i].verts;
+ average = 0;
+ for (j = transpoly[i].firstvert;j < lastvert;j++)
+ {
+ d = DotProduct(transvert[j].v, vpn)-viewdist;
+ average += d;
+ if (d > max)
+ max = d;
+ }
+ if (max < 4) // free to check here, so skip polys behind the view
+ continue;
+ transpoly[i].distance = average / transpoly[i].verts;
+ transpolyindex[transpolyindices++] = i;
+ }
+ qsort(&transpolyindex[0], transpolyindices, sizeof(unsigned short), transpolyqsort);
+}
+*/
+/*
int i, j, a;
-// qsort(&transpolyindex[0], transpolyindices, sizeof(unsigned short), transpolyqsort);
a = true;
while(a)
{
transpoly_t *p;
if (currenttranspoly < 1)
return;
- transpolyrenderminmax();
- if (transpolyindices < 1)
- return;
+// transpolyrenderminmax();
+// if (transpolyindices < 1)
+// return;
// testing
// Con_DPrintf("transpolyrender: %i polys %i infront %i vertices\n", currenttranspoly, transpolyindices, currenttransvert);
// if (transpolyindices >= 2)
glEnable(GL_ALPHA_TEST);
else
glDisable(GL_ALPHA_TEST);
- // later note: wasn't working on my TNT drivers... strangely... used a cheaper hack in transpolyvert
- //// offset by 16 depth units so decal sprites appear infront of walls
- //glPolygonOffset(1, -16);
- //glEnable(GL_POLYGON_OFFSET_FILL);
- tpolytype = -1;
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ tpolytype = TPOLYTYPE_ALPHA;
texnum = -1;
/*
if (gl_vertexarrays.value)
*/
{
int points = -1;
+ translistitem *item;
transvert_t *vert;
- for (i = 0;i < transpolyindices;i++)
+ for (i = 4095;i >= 0;i--)
{
- p = &transpoly[transpolyindex[i]];
- if (p->texnum != texnum || p->verts != points || p->transpolytype != tpolytype)
- {
- glEnd();
- if (isG200)
- {
- if (p->fogtexnum) // alpha
- glEnable(GL_ALPHA_TEST);
- else
- glDisable(GL_ALPHA_TEST);
- }
- if (p->texnum != texnum)
- {
- texnum = p->texnum;
- glBindTexture(GL_TEXTURE_2D, texnum);
- }
- if (p->transpolytype != tpolytype)
- {
- tpolytype = p->transpolytype;
- if (tpolytype == TPOLYTYPE_ADD) // additive
- glBlendFunc(GL_SRC_ALPHA, GL_ONE);
- else // alpha
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- }
- points = p->verts;
- switch (points)
- {
- case 3:
- glBegin(GL_TRIANGLES);
- break;
- case 4:
- glBegin(GL_QUADS);
- break;
- default:
- glBegin(GL_TRIANGLE_FAN);
- points = -1; // to force a reinit on the next poly
- break;
- }
- }
- for (j = 0,vert = &transvert[p->firstvert];j < p->verts;j++, vert++)
+ item = translisthash[i];
+ while (item)
{
- // would be 2fv, but windoze Matrox G200 and probably G400 drivers don't support that (dumb...)
- glTexCoord2f(vert->s, vert->t);
- // again, vector version isn't supported I think
- glColor4ub(vert->r, vert->g, vert->b, vert->a);
- glVertex3fv(vert->v);
- }
- if (p->glowtexnum)
- {
- glEnd();
- texnum = p->glowtexnum; // highly unlikely to match next poly, but...
- glBindTexture(GL_TEXTURE_2D, texnum);
- if (tpolytype != TPOLYTYPE_ADD)
+ p = item->poly;
+ item = item->next;
+ if (p->texnum != texnum || p->verts != points || p->transpolytype != tpolytype)
{
- tpolytype = TPOLYTYPE_ADD; // might match next poly
- glBlendFunc(GL_SRC_ALPHA, GL_ONE);
+ glEnd();
+ if (isG200)
+ {
+ if (p->fogtexnum) // alpha
+ glEnable(GL_ALPHA_TEST);
+ else
+ glDisable(GL_ALPHA_TEST);
+ }
+ if (p->texnum != texnum)
+ {
+ texnum = p->texnum;
+ glBindTexture(GL_TEXTURE_2D, texnum);
+ }
+ if (p->transpolytype != tpolytype)
+ {
+ tpolytype = p->transpolytype;
+ if (tpolytype == TPOLYTYPE_ADD) // additive
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE);
+ else // alpha
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ }
+ points = p->verts;
+ switch (points)
+ {
+ case 3:
+ glBegin(GL_TRIANGLES);
+ break;
+ case 4:
+ glBegin(GL_QUADS);
+ break;
+ default:
+ glBegin(GL_TRIANGLE_FAN);
+ points = -1; // to force a reinit on the next poly
+ break;
+ }
}
- points = -1;
- glBegin(GL_TRIANGLE_FAN);
for (j = 0,vert = &transvert[p->firstvert];j < p->verts;j++, vert++)
{
- glColor4ub(255,255,255,vert->a);
// would be 2fv, but windoze Matrox G200 and probably G400 drivers don't support that (dumb...)
glTexCoord2f(vert->s, vert->t);
+ // again, vector version isn't supported I think
+ glColor4ub(vert->r, vert->g, vert->b, vert->a);
glVertex3fv(vert->v);
}
- glEnd();
- }
- if (fogenabled && p->transpolytype == TPOLYTYPE_ALPHA)
- {
- vec3_t diff;
- glEnd();
- points = -1; // to force a reinit on the next poly
- if (tpolytype != TPOLYTYPE_ALPHA)
- {
- tpolytype = TPOLYTYPE_ALPHA; // probably matchs next poly
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- }
- if (p->fogtexnum)
+ if (p->glowtexnum)
{
- if (texnum != p->fogtexnum) // highly unlikely to match next poly, but...
+ glEnd();
+ texnum = p->glowtexnum; // highly unlikely to match next poly, but...
+ glBindTexture(GL_TEXTURE_2D, texnum);
+ if (tpolytype != TPOLYTYPE_ADD)
{
- texnum = p->fogtexnum;
- glBindTexture(GL_TEXTURE_2D, texnum);
+ tpolytype = TPOLYTYPE_ADD; // might match next poly
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE);
}
+ points = -1;
glBegin(GL_TRIANGLE_FAN);
for (j = 0,vert = &transvert[p->firstvert];j < p->verts;j++, vert++)
{
- VectorSubtract(vert->v, r_refdef.vieworg,diff);
+ glColor4ub(255,255,255,vert->a);
+ // would be 2fv, but windoze Matrox G200 and probably G400 drivers don't support that (dumb...)
glTexCoord2f(vert->s, vert->t);
- glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], vert->a*(1.0f/255.0f)*exp(fogdensity/DotProduct(diff,diff)));
glVertex3fv(vert->v);
}
- glEnd ();
+ glEnd();
}
- else
+ if (fogenabled && p->transpolytype == TPOLYTYPE_ALPHA)
{
- glDisable(GL_TEXTURE_2D);
- glBegin(GL_TRIANGLE_FAN);
- for (j = 0,vert = &transvert[p->firstvert];j < p->verts;j++, vert++)
+ vec3_t diff;
+ glEnd();
+ points = -1; // to force a reinit on the next poly
+ if (tpolytype != TPOLYTYPE_ALPHA)
{
- VectorSubtract(vert->v, r_refdef.vieworg,diff);
- glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], vert->a*(1.0f/255.0f)*exp(fogdensity/DotProduct(diff,diff)));
- glVertex3fv(vert->v);
+ tpolytype = TPOLYTYPE_ALPHA; // probably matchs next poly
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ }
+ if (p->fogtexnum)
+ {
+ if (texnum != p->fogtexnum) // highly unlikely to match next poly, but...
+ {
+ texnum = p->fogtexnum;
+ glBindTexture(GL_TEXTURE_2D, texnum);
+ }
+ glBegin(GL_TRIANGLE_FAN);
+ for (j = 0,vert = &transvert[p->firstvert];j < p->verts;j++, vert++)
+ {
+ VectorSubtract(vert->v, r_refdef.vieworg,diff);
+ glTexCoord2f(vert->s, vert->t);
+ glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], vert->a*(1.0f/255.0f)*exp(fogdensity/DotProduct(diff,diff)));
+ glVertex3fv(vert->v);
+ }
+ glEnd ();
+ }
+ else
+ {
+ glDisable(GL_TEXTURE_2D);
+ glBegin(GL_TRIANGLE_FAN);
+ for (j = 0,vert = &transvert[p->firstvert];j < p->verts;j++, vert++)
+ {
+ VectorSubtract(vert->v, r_refdef.vieworg,diff);
+ glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], vert->a*(1.0f/255.0f)*exp(fogdensity/DotProduct(diff,diff)));
+ glVertex3fv(vert->v);
+ }
+ glEnd ();
+ glEnable(GL_TEXTURE_2D);
}
- glEnd ();
- glEnable(GL_TEXTURE_2D);
}
}
}
glEnd();
}
- //glDisable(GL_POLYGON_OFFSET_FILL);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDepthMask(1); // enable zbuffer updates
glDisable(GL_ALPHA_TEST);
}
+extern qboolean isG200;
+
void wallpolyclear()
{
currentwallpoly = currentwallvert = 0;
wallvert_t *vert;
if (currentwallpoly < 1)
return;
+ c_brush_polys += currentwallpoly;
// testing
//Con_DPrintf("wallpolyrender: %i polys %i vertices\n", currentwallpoly, currentwallvert);
if (!gl_mtexable)
{
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
texnum = -1;
- for (i = 0,p = &wallpoly[0];i < currentwallpoly;i++, p++)
+ for (i = 0,p = wallpoly;i < currentwallpoly;i++, p++)
{
if (p->texnum != texnum)
{
}
vert = &wallvert[p->firstvert];
glBegin(GL_POLYGON);
- for (j=0 ; j<p->verts ; j++, vert++)
+ for (j=0 ; j<p->numverts ; j++, vert++)
{
glTexCoord2f (vert->s, vert->t);
glVertex3fv (vert->vert);
glEnable(GL_TEXTURE_2D);
texnum = -1;
lighttexnum = -1;
- for (i = 0,p = &wallpoly[0];i < currentwallpoly;i++, p++)
+ for (i = 0,p = wallpoly;i < currentwallpoly;i++, p++)
{
-// if (p->texnum != texnum || p->lighttexnum != lighttexnum)
-// {
+ if (p->texnum != texnum || p->lighttexnum != lighttexnum)
+ {
texnum = p->texnum;
lighttexnum = p->lighttexnum;
qglSelectTexture(gl_mtex_enum+0);
glBindTexture(GL_TEXTURE_2D, texnum);
qglSelectTexture(gl_mtex_enum+1);
glBindTexture(GL_TEXTURE_2D, lighttexnum);
-// }
+ }
vert = &wallvert[p->firstvert];
glBegin(GL_POLYGON);
- for (j=0 ; j<p->verts ; j++, vert++)
+ for (j=0 ; j<p->numverts ; j++, vert++)
{
qglMTexCoord2f(gl_mtex_enum, vert->s, vert->t); // texture
qglMTexCoord2f((gl_mtex_enum+1), vert->u, vert->v); // lightmap
// first do the textures
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
texnum = -1;
- for (i = 0,p = &wallpoly[0];i < currentwallpoly;i++, p++)
+ for (i = 0,p = wallpoly;i < currentwallpoly;i++, p++)
{
if (p->texnum != texnum)
{
}
vert = &wallvert[p->firstvert];
glBegin(GL_POLYGON);
- for (j=0 ; j<p->verts ; j++, vert++)
+ for (j=0 ; j<p->numverts ; j++, vert++)
{
glTexCoord2f (vert->s, vert->t);
glVertex3fv (vert->vert);
glBlendFunc(GL_ZERO, GL_SRC_COLOR);
glEnable(GL_BLEND);
texnum = -1;
- for (i = 0,p = &wallpoly[0];i < currentwallpoly;i++, p++)
+ for (i = 0,p = wallpoly;i < currentwallpoly;i++, p++)
{
if (p->lighttexnum != texnum)
{
}
vert = &wallvert[p->firstvert];
glBegin(GL_POLYGON);
- for (j=0 ; j<p->verts ; j++, vert++)
+ for (j=0 ; j<p->numverts ; j++, vert++)
{
glTexCoord2f (vert->u, vert->v);
glVertex3fv (vert->vert);
glEnd ();
}
}
- // render glow textures
+ // switch to additive mode settings
glDepthMask(0);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
- glBlendFunc(GL_ONE, GL_ONE);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glEnable(GL_BLEND);
+ glDisable(GL_ALPHA_TEST);
+ glShadeModel(GL_SMOOTH);
+ // render vertex lit overlays ontop
+ texnum = -1;
+ for (i = 0, p = wallpoly;i < currentwallpoly;i++, p++)
+ {
+ if (!p->lit)
+ continue;
+ for (j = 0,vert = &wallvert[p->firstvert];j < p->numverts;j++, vert++)
+ if (vert->r || vert->g || vert->b)
+ goto lit;
+ continue;
+lit:
+ c_light_polys++;
+ if (p->texnum != texnum)
+ {
+ texnum = p->texnum;
+ glBindTexture(GL_TEXTURE_2D, texnum);
+ }
+ glBegin(GL_POLYGON);
+ for (j = 0,vert = &wallvert[p->firstvert];j < p->numverts;j++, vert++)
+ {
+ // would be 2fv, but windoze Matrox G200 and probably G400 drivers don't support that (dumb...)
+ glTexCoord2f(vert->s, vert->t);
+ // again, vector version isn't supported I think
+ glColor3ub(vert->r, vert->g, vert->b);
+ glVertex3fv(vert->vert);
+ }
+ glEnd();
+ }
+ // render glow textures
+ glShadeModel(GL_FLAT);
+ glBlendFunc(GL_ONE, GL_ONE);
if (lighthalf)
glColor3f(0.5,0.5,0.5);
else
glColor3f(1,1,1);
texnum = -1;
- for (i = 0,p = &wallpoly[0];i < currentwallpoly;i++, p++)
+ for (i = 0,p = wallpoly;i < currentwallpoly;i++, p++)
{
if (!p->glowtexnum)
continue;
}
vert = &wallvert[p->firstvert];
glBegin(GL_POLYGON);
- for (j=0 ; j<p->verts ; j++, vert++)
+ for (j=0 ; j<p->numverts ; j++, vert++)
{
glTexCoord2f (vert->s, vert->t);
glVertex3fv (vert->vert);
}
- glEnd ();
+ glEnd();
}
glColor3f(1,1,1);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
{
vert = &wallvert[p->firstvert];
glBegin(GL_POLYGON);
- for (j=0 ; j<p->verts ; j++, vert++)
+ for (j=0 ; j<p->numverts ; j++, vert++)
{
VectorSubtract(vert->vert, r_refdef.vieworg,diff);
glColor4f(fogcolor[0], fogcolor[1], fogcolor[2], exp(fogdensity/DotProduct(diff,diff)));
}
glEnable(GL_TEXTURE_2D);
}
+ glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glDisable(GL_ALPHA_TEST);
+ glShadeModel(GL_SMOOTH);
glDisable(GL_BLEND);
glDepthMask(1);
}
}
extern qboolean isATI;
+
+extern char skyname[];
+extern int solidskytexture, alphaskytexture;
void skypolyrender()
{
int i, j;
skypoly_t *p;
skyvert_t *vert;
+ float length, speedscale;
+ vec3_t dir;
if (currentskypoly < 1)
return;
// testing
// Con_DPrintf("skypolyrender: %i polys %i vertices\n", currentskypoly, currentskyvert);
- glDisable(GL_TEXTURE_2D);
- glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glDisable(GL_ALPHA_TEST);
glDisable(GL_BLEND);
// make sure zbuffer is enabled
glEnable(GL_DEPTH_TEST);
glDepthMask(1);
- glColor3fv(fogcolor); // note: gets rendered over by sky if fog is not enabled
- for (i = 0,p = &skypoly[0];i < currentskypoly;i++, p++)
+ if (!fogenabled && !skyname[0]) // normal quake sky
{
- vert = &skyvert[p->firstvert];
- glBegin(GL_POLYGON);
- for (j=0 ; j<p->verts ; j++, vert++)
- glVertex3fv (vert->v);
- glEnd ();
+ glColor3f(0.5f, 0.5f, 0.5f);
+ glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+ glEnable(GL_TEXTURE_2D);
+ glDisable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ glBindTexture(GL_TEXTURE_2D, solidskytexture); // upper clouds
+ speedscale = realtime*8;
+ speedscale -= (int)speedscale & ~127 ;
+ for (i = 0,p = &skypoly[0];i < currentskypoly;i++, p++)
+ {
+ vert = &skyvert[p->firstvert];
+ glBegin(GL_POLYGON);
+ for (j=0 ; j<p->verts ; j++, vert++)
+ {
+ VectorSubtract (vert->v, r_origin, dir);
+ dir[2] *= 3; // flatten the sphere
+
+ length = dir[0]*dir[0] + dir[1]*dir[1] + dir[2]*dir[2];
+ length = sqrt (length);
+ length = 6*63/length;
+
+ glTexCoord2f ((speedscale + dir[0] * length) * (1.0/128), (speedscale + dir[1] * length) * (1.0/128));
+ glVertex3fv (vert->v);
+ }
+ glEnd ();
+ }
+ glEnable(GL_BLEND);
+ glDepthMask(0);
+ glBindTexture(GL_TEXTURE_2D, alphaskytexture); // lower clouds
+ speedscale = realtime*16;
+ speedscale -= (int)speedscale & ~127 ;
+ for (i = 0,p = &skypoly[0];i < currentskypoly;i++, p++)
+ {
+ vert = &skyvert[p->firstvert];
+ glBegin(GL_POLYGON);
+ for (j=0 ; j<p->verts ; j++, vert++)
+ {
+ VectorSubtract (vert->v, r_origin, dir);
+ dir[2] *= 3; // flatten the sphere
+
+ length = dir[0]*dir[0] + dir[1]*dir[1] + dir[2]*dir[2];
+ length = sqrt (length);
+ length = 6*63/length;
+
+ glTexCoord2f ((speedscale + dir[0] * length) * (1.0/128), (speedscale + dir[1] * length) * (1.0/128));
+ glVertex3fv (vert->v);
+ }
+ glEnd ();
+ }
+ glDisable(GL_BLEND);
+ glColor3f(1,1,1);
+ glDepthMask(1);
+ }
+ else
+ {
+ glDisable(GL_TEXTURE_2D);
+ glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+ glColor3fv(fogcolor); // note: gets rendered over by skybox if fog is not enabled
+ for (i = 0,p = &skypoly[0];i < currentskypoly;i++, p++)
+ {
+ vert = &skyvert[p->firstvert];
+ glBegin(GL_POLYGON);
+ for (j=0 ; j<p->verts ; j++, vert++)
+ glVertex3fv (vert->v);
+ glEnd ();
+ }
+ glColor3f(1,1,1);
+ glEnable(GL_TEXTURE_2D);
}
- glColor3f(1,1,1);
- glEnable(GL_TEXTURE_2D);
}
projects / xonotic / darkplaces.git / blobdiff