/*
================
RB_StageIteratorSky
All of the visible sky triangles are in tess
Other things could be stuck in here, like birds in the sky, etc
================
*/
void RB_StageIteratorSky( void ) {
int clearBits = 0;
if ( r_fastsky->integer ) {
if (r_fastsky->integer == 2 && !(backEnd.refdef.rdflags & RDF_NOWORLDMODEL)) {
clearBits |= GL_COLOR_BUFFER_BIT; // FIXME: only if sky shaders have been used
if (*r_fastSkyColor->string) {
int v, tr, tg, tb;
v = r_fastSkyColor->integer;
tr = (v & 0xff0000) / 0x010000;
tg = (v & 0x00ff00) / 0x000100;
tb = (v & 0x0000ff) / 0x000001;
qglClearColor((float)tr / 255.0, (float)tg / 255.0, (float)tb / 255.0, 1.0);
} else {
qglClearColor(0.0f, 0.0f, 0.0f, 1.0f); // FIXME: get color of sky
}
qglClear(clearBits);
}
return;
}
// go through all the polygons and project them onto
// the sky box to see which blocks on each side need
// to be drawn
RB_ClipSkyPolygons( &tess );
// r_showsky will let all the sky blocks be drawn in
// front of everything to allow developers to see how
// much sky is getting sucked in
if ( r_showsky->integer ) {
qglDepthRange( 0.0, 0.0 );
} else {
qglDepthRange( 1.0, 1.0 );
}
// draw the outer skybox
if ( tess.shader->sky.outerbox[0] && tess.shader->sky.outerbox[0] != tr.defaultImage ) {
qglColor3f( tr.identityLight, tr.identityLight, tr.identityLight );
qglPushMatrix ();
GL_State( 0 );
GL_Cull( CT_FRONT_SIDED );
qglTranslatef (backEnd.viewParms.or.origin[0], backEnd.viewParms.or.origin[1], backEnd.viewParms.or.origin[2]);
DrawSkyBox( tess.shader );
qglPopMatrix();
}
// generate the vertexes for all the clouds, which will be drawn
// by the generic shader routine
R_BuildCloudData( &tess );
if (tess.numVertexes) {
// yes, sky has cloud stages
RB_StageIteratorGeneric();
}
// draw the inner skybox
//FIXME not even done
// back to normal depth range
qglDepthRange( 0.0, 1.0 );
// note that sky was drawn so we will draw a sun later
backEnd.skyRenderedThisView = qtrue;
}
/*
** RB_DrawSun
*/
void RB_DrawSun( void ) {
float size;
float dist;
vec3_t origin, vec1, vec2;
vec3_t temp;
if ( !backEnd.skyRenderedThisView ) {
return;
}
if ( !r_drawSun->integer ) {
return;
}
qglLoadMatrixf( backEnd.viewParms.world.modelMatrix );
qglTranslatef (backEnd.viewParms.ori.origin[0], backEnd.viewParms.ori.origin[1], backEnd.viewParms.ori.origin[2]);
dist = backEnd.viewParms.zFar / 1.75; // div sqrt(3)
size = dist * 0.4;
VectorScale( tr.sunDirection, dist, origin );
PerpendicularVector( vec1, tr.sunDirection );
CrossProduct( tr.sunDirection, vec1, vec2 );
VectorScale( vec1, size, vec1 );
VectorScale( vec2, size, vec2 );
// farthest depth range
qglDepthRange( 1.0, 1.0 );
// FIXME: use quad stamp
RB_BeginSurface( tr.sunShader, tess.fogNum );
VectorCopy( origin, temp );
VectorSubtract( temp, vec1, temp );
VectorSubtract( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 0;
tess.texCoords[tess.numVertexes][0][1] = 0;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorAdd( temp, vec1, temp );
VectorSubtract( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 0;
tess.texCoords[tess.numVertexes][0][1] = 1;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorAdd( temp, vec1, temp );
VectorAdd( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 1;
tess.texCoords[tess.numVertexes][0][1] = 1;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorSubtract( temp, vec1, temp );
VectorAdd( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 1;
tess.texCoords[tess.numVertexes][0][1] = 0;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 1;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 3;
RB_EndSurface();
// back to normal depth range
qglDepthRange( 0.0, 1.0 );
}
void Sky_DrawCubeMap (r_modelsurf_t **mslist, int numms)
{
#if 0
int i;
msurface_t *surf;
r_modelsurf_t *ms;
qbool stateset = false;
// cubemapped sky doesn't need depth clipping or other hackery, is always perfectly positioned, and never has bugs
for (i = 0; i < numms; i++)
{
ms = mslist[i];
if (!((surf = ms->surface)->flags & SURF_DRAWSKY)) continue;
if (!stateset)
{
if (gl_support_arb_vertex_buffer_object)
{
GL_BindBuffer (GL_ARRAY_BUFFER_ARB, r_surfacevbo);
GL_SetStreamSource (GLSTREAM_POSITION, 3, GL_FLOAT, sizeof (glvertex_t), (void *) (0));
GL_SetStreamSource (GLSTREAM_TEXCOORD0, 3, GL_FLOAT, sizeof (glvertex_t), (void *) (0));
}
else
{
glvertex_t *base = (glvertex_t *) scratchbuf;
GL_SetStreamSource (GLSTREAM_POSITION, 3, GL_FLOAT, sizeof (glvertex_t), base->v);
GL_SetStreamSource (GLSTREAM_TEXCOORD0, 3, GL_FLOAT, sizeof (glvertex_t), base->v);
}
GL_SetStreamSource (GLSTREAM_COLOR, 0, GL_NONE, 0, NULL);
GL_SetStreamSource (GLSTREAM_TEXCOORD1, 0, GL_NONE, 0, NULL);
GL_SetStreamSource (GLSTREAM_TEXCOORD2, 0, GL_NONE, 0, NULL);
R_BeginSurfaces ();
// texmgr is fragile and can't handle cubemaps so we must do it manually
qglBindTexture (GL_TEXTURE_2D, 0);
qglDisable (GL_TEXTURE_2D);
qglEnable (GL_TEXTURE_CUBE_MAP);
qglBindTexture (GL_TEXTURE_CUBE_MAP, skyCubeTexture);
qglMatrixMode (GL_TEXTURE);
qglLoadIdentity ();
qglTranslatef (-r_origin[0], -r_origin[1], -r_origin[2]);
qglMatrixMode (GL_MODELVIEW);
stateset = true;
}
R_BatchSurface (ms->surface, ms->matrix, ms->entnum);
}
if (stateset)
{
R_EndSurfaces ();
qglMatrixMode (GL_TEXTURE);
qglLoadIdentity ();
qglMatrixMode (GL_MODELVIEW);
// texmgr is fragile and can't handle cubemaps so we must do it manually
qglBindTexture (GL_TEXTURE_CUBE_MAP, 0);
qglDisable (GL_TEXTURE_CUBE_MAP);
qglEnable (GL_TEXTURE_2D);
// ensure that we bind a 2D texture here
GL_BindTexture (GL_TEXTURE0_ARB, NULL);
}
#endif
}
void
R_DrawAliasModel ( entity_t *e )
{
int i;
dmdl_t *paliashdr;
float an;
vec3_t bbox [ 8 ];
image_t *skin;
if ( !( e->flags & RF_WEAPONMODEL ) )
{
if ( R_CullAliasModel( bbox, e ) )
{
return;
}
}
if ( e->flags & RF_WEAPONMODEL )
{
if ( gl_lefthand->value == 2 )
{
return;
}
}
paliashdr = (dmdl_t *) currentmodel->extradata;
/* get lighting information */
if ( currententity->flags & ( RF_SHELL_HALF_DAM | RF_SHELL_GREEN | RF_SHELL_RED | RF_SHELL_BLUE | RF_SHELL_DOUBLE ) )
{
VectorClear( shadelight );
if ( currententity->flags & RF_SHELL_HALF_DAM )
{
shadelight [ 0 ] = 0.56;
shadelight [ 1 ] = 0.59;
shadelight [ 2 ] = 0.45;
}
if ( currententity->flags & RF_SHELL_DOUBLE )
{
shadelight [ 0 ] = 0.9;
shadelight [ 1 ] = 0.7;
}
if ( currententity->flags & RF_SHELL_RED )
{
shadelight [ 0 ] = 1.0;
}
if ( currententity->flags & RF_SHELL_GREEN )
{
shadelight [ 1 ] = 1.0;
}
if ( currententity->flags & RF_SHELL_BLUE )
{
shadelight [ 2 ] = 1.0;
}
}
else if ( currententity->flags & RF_FULLBRIGHT )
{
for ( i = 0; i < 3; i++ )
{
shadelight [ i ] = 1.0;
}
}
else
{
R_LightPoint( currententity->origin, shadelight );
/* player lighting hack for communication back to server */
if ( currententity->flags & RF_WEAPONMODEL )
{
/* pick the greatest component, which should be the same
as the mono value returned by software */
if ( shadelight [ 0 ] > shadelight [ 1 ] )
{
if ( shadelight [ 0 ] > shadelight [ 2 ] )
{
gl_lightlevel->value = 150 * shadelight [ 0 ];
}
else
{
gl_lightlevel->value = 150 * shadelight [ 2 ];
}
}
else
{
if ( shadelight [ 1 ] > shadelight [ 2 ] )
{
gl_lightlevel->value = 150 * shadelight [ 1 ];
}
else
{
gl_lightlevel->value = 150 * shadelight [ 2 ];
}
}
}
}
if ( currententity->flags & RF_MINLIGHT )
{
for ( i = 0; i < 3; i++ )
{
if ( shadelight [ i ] > 0.1 )
{
break;
}
}
if ( i == 3 )
{
shadelight [ 0 ] = 0.1;
shadelight [ 1 ] = 0.1;
shadelight [ 2 ] = 0.1;
}
}
if ( currententity->flags & RF_GLOW )
{
/* bonus items will pulse with time */
float scale;
float min;
scale = 0.1 * sin( r_newrefdef.time * 7 );
for ( i = 0; i < 3; i++ )
{
min = shadelight [ i ] * 0.8;
shadelight [ i ] += scale;
if ( shadelight [ i ] < min )
{
shadelight [ i ] = min;
}
}
}
/* ir goggles color override */
if ( r_newrefdef.rdflags & RDF_IRGOGGLES && currententity->flags & RF_IR_VISIBLE )
{
shadelight [ 0 ] = 1.0;
shadelight [ 1 ] = 0.0;
shadelight [ 2 ] = 0.0;
}
shadedots =
r_avertexnormal_dots [ ( (int) ( currententity->angles [ 1 ] * ( SHADEDOT_QUANT / 360.0 ) ) ) & ( SHADEDOT_QUANT - 1 ) ];
an = currententity->angles [ 1 ] / 180 * M_PI;
shadevector [ 0 ] = cos( -an );
shadevector [ 1 ] = sin( -an );
shadevector [ 2 ] = 1;
VectorNormalize( shadevector );
/* locate the proper data */
c_alias_polys += paliashdr->num_tris;
/* draw all the triangles */
if ( currententity->flags & RF_DEPTHHACK ) /* hack the depth range to prevent view model from poking into walls */
{
qglDepthRange( gldepthmin, gldepthmin + 0.3 * ( gldepthmax - gldepthmin ) );
}
if ( ( currententity->flags & RF_WEAPONMODEL ) && ( gl_lefthand->value == 1.0F ) )
{
extern void R_MYgluPerspective ( GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar );
qglMatrixMode( GL_PROJECTION );
qglPushMatrix();
qglLoadIdentity();
qglScalef( -1, 1, 1 );
R_MYgluPerspective( r_newrefdef.fov_y, (float) r_newrefdef.width / r_newrefdef.height, 4, 4096 );
qglMatrixMode( GL_MODELVIEW );
qglCullFace( GL_BACK );
}
qglPushMatrix();
e->angles [ PITCH ] = -e->angles [ PITCH ];
R_RotateForEntity( e );
e->angles [ PITCH ] = -e->angles [ PITCH ];
/* select skin */
if ( currententity->skin )
{
skin = currententity->skin; /* custom player skin */
}
else
{
if ( currententity->skinnum >= MAX_MD2SKINS )
{
skin = currentmodel->skins [ 0 ];
}
else
{
skin = currentmodel->skins [ currententity->skinnum ];
if ( !skin )
{
skin = currentmodel->skins [ 0 ];
}
}
}
if ( !skin )
{
skin = r_notexture; /* fallback... */
}
R_Bind( skin->texnum );
/* draw it */
qglShadeModel( GL_SMOOTH );
R_TexEnv( GL_MODULATE );
if ( currententity->flags & RF_TRANSLUCENT )
{
qglEnable( GL_BLEND );
}
if ( ( currententity->frame >= paliashdr->num_frames ) ||
( currententity->frame < 0 ) )
{
ri.Con_Printf( PRINT_ALL, "R_DrawAliasModel %s: no such frame %d\n",
currentmodel->name, currententity->frame );
currententity->frame = 0;
currententity->oldframe = 0;
}
if ( ( currententity->oldframe >= paliashdr->num_frames ) ||
( currententity->oldframe < 0 ) )
{
ri.Con_Printf( PRINT_ALL, "R_DrawAliasModel %s: no such oldframe %d\n",
currentmodel->name, currententity->oldframe );
currententity->frame = 0;
currententity->oldframe = 0;
}
if ( !gl_lerpmodels->value )
{
currententity->backlerp = 0;
}
R_DrawAliasFrameLerp( paliashdr, currententity->backlerp );
R_TexEnv( GL_REPLACE );
qglShadeModel( GL_FLAT );
qglPopMatrix();
if ( ( currententity->flags & RF_WEAPONMODEL ) && ( gl_lefthand->value == 1.0F ) )
{
qglMatrixMode( GL_PROJECTION );
qglPopMatrix();
qglMatrixMode( GL_MODELVIEW );
qglCullFace( GL_FRONT );
}
if ( currententity->flags & RF_TRANSLUCENT )
{
qglDisable( GL_BLEND );
}
if ( currententity->flags & RF_DEPTHHACK )
{
qglDepthRange( gldepthmin, gldepthmax );
}
if ( gl_shadows->value &&
!( currententity->flags & ( RF_TRANSLUCENT | RF_WEAPONMODEL | RF_NOSHADOW ) ) )
{
qglPushMatrix();
/* don't rotate shadows on ungodly axes */
qglTranslatef( e->origin [ 0 ], e->origin [ 1 ], e->origin [ 2 ] );
qglRotatef( e->angles [ 1 ], 0, 0, 1 );
qglDisable( GL_TEXTURE_2D );
qglEnable( GL_BLEND );
qglColor4f( 0, 0, 0, 0.5f );
R_DrawAliasShadow( paliashdr, currententity->frame );
qglEnable( GL_TEXTURE_2D );
qglDisable( GL_BLEND );
qglPopMatrix();
}
qglColor4f( 1, 1, 1, 1 );
}
/*
** RB_DrawSun
*/
void
RB_DrawSun(void)
{
float size;
float dist;
Vec3 origin, vec1, vec2;
Vec3 temp;
if(!backEnd.skyRenderedThisView){
return;
}
if(!r_drawSun->integer){
return;
}
qglLoadMatrixf(backEnd.viewParms.world.modelMatrix);
qglTranslatef (backEnd.viewParms.or.origin[0], backEnd.viewParms.or.origin[1],
backEnd.viewParms.or.origin[2]);
dist = backEnd.viewParms.zFar / 1.75; /* div sqrt(3) */
size = dist * 0.4;
scalev3(tr.sunDirection, dist, origin);
perpv3(vec1, tr.sunDirection);
crossv3(tr.sunDirection, vec1, vec2);
scalev3(vec1, size, vec1);
scalev3(vec2, size, vec2);
/* farthest depth range */
qglDepthRange(1.0, 1.0);
/* FIXME: use quad stamp */
RB_BeginSurface(tr.sunShader, tess.fogNum);
copyv3(origin, temp);
subv3(temp, vec1, temp);
subv3(temp, vec2, temp);
copyv3(temp, tess.xyz[tess.numVertexes]);
tess.texCoords[tess.numVertexes][0][0] = 0;
tess.texCoords[tess.numVertexes][0][1] = 0;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
copyv3(origin, temp);
addv3(temp, vec1, temp);
subv3(temp, vec2, temp);
copyv3(temp, tess.xyz[tess.numVertexes]);
tess.texCoords[tess.numVertexes][0][0] = 0;
tess.texCoords[tess.numVertexes][0][1] = 1;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
copyv3(origin, temp);
addv3(temp, vec1, temp);
addv3(temp, vec2, temp);
copyv3(temp, tess.xyz[tess.numVertexes]);
tess.texCoords[tess.numVertexes][0][0] = 1;
tess.texCoords[tess.numVertexes][0][1] = 1;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
copyv3(origin, temp);
subv3(temp, vec1, temp);
addv3(temp, vec2, temp);
copyv3(temp, tess.xyz[tess.numVertexes]);
tess.texCoords[tess.numVertexes][0][0] = 1;
tess.texCoords[tess.numVertexes][0][1] = 0;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 1;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 3;
RB_EndSurface();
/* back to normal depth range */
qglDepthRange(0.0, 1.0);
}
void R_DrawSkyBox (void)
{
int i;
#if 0
qglEnable (GL_BLEND);
GL_TexEnv( GL_MODULATE );
qglColor4f (1,1,1,0.5);
qglDisable (GL_DEPTH_TEST);
#endif
// jkrige - skybox
qglDisable (GL_DEPTH_TEST);
/*if (skyrotate)
{ // check for no sky at all
for (i=0 ; i<6 ; i++)
if (skymins[0][i] < skymaxs[0][i]
&& skymins[1][i] < skymaxs[1][i])
break;
if (i == 6)
return; // nothing visible
}*/
// jkrige - skybox
qglPushMatrix ();
qglTranslatef (r_origin[0], r_origin[1], r_origin[2]);
qglRotatef (r_newrefdef.time * skyrotate, skyaxis[0], skyaxis[1], skyaxis[2]);
for (i=0 ; i<6 ; i++)
{
// jkrige - skybox
/*if (skyrotate)
{ // hack, forces full sky to draw when rotating
skymins[0][i] = -1;
skymins[1][i] = -1;
skymaxs[0][i] = 1;
skymaxs[1][i] = 1;
}
if (skymins[0][i] >= skymaxs[0][i]
|| skymins[1][i] >= skymaxs[1][i])
continue;*/
// jkrige - skybox
GL_Bind (sky_images[skytexorder[i]]->texnum);
qglBegin (GL_QUADS);
// jkrige - skybox
MakeSkyVec (-1, -1, i);
MakeSkyVec (-1, 1, i);
MakeSkyVec (1, 1, i);
MakeSkyVec (1, -1, i);
//MakeSkyVec (skymins[0][i], skymins[1][i], i);
//MakeSkyVec (skymins[0][i], skymaxs[1][i], i);
//MakeSkyVec (skymaxs[0][i], skymaxs[1][i], i);
//MakeSkyVec (skymaxs[0][i], skymins[1][i], i);
// jkrige - skybox
qglEnd ();
}
qglPopMatrix ();
#if 0
glDisable (GL_BLEND);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glColor4f (1,1,1,0.5);
glEnable (GL_DEPTH_TEST);
#endif
// jkrige - skybox
qglEnable (GL_DEPTH_TEST);
// jkrige - skybox
}
/*
==============
RB_DrawSun
(SA) FIXME: sun should render behind clouds, so passing dark areas cover it up
==============
*/
void RB_DrawSun( void ) {
float size;
float dist;
vec3_t origin, vec1, vec2;
vec3_t temp;
byte color[4];
if ( !tr.sunShader ) {
return;
}
if ( !backEnd.skyRenderedThisView ) {
return;
}
if ( !r_drawSun->integer ) {
return;
}
qglLoadMatrixf( backEnd.viewParms.world.modelMatrix );
qglTranslatef( backEnd.viewParms.or.origin[0], backEnd.viewParms.or.origin[1], backEnd.viewParms.or.origin[2] );
dist = backEnd.viewParms.zFar / 1.75; // div sqrt(3)
// (SA) shrunk the size of the sun
size = dist * 0.2;
VectorScale( tr.sunDirection, dist, origin );
PerpendicularVector( vec1, tr.sunDirection );
CrossProduct( tr.sunDirection, vec1, vec2 );
VectorScale( vec1, size, vec1 );
VectorScale( vec2, size, vec2 );
// farthest depth range
qglDepthRange( 1.0, 1.0 );
color[0] = color[1] = color[2] = color[3] = 255;
// (SA) simpler sun drawing
RB_BeginSurface( tr.sunShader, tess.fogNum );
RB_AddQuadStamp( origin, vec1, vec2, color );
/*
VectorCopy( origin, temp );
VectorSubtract( temp, vec1, temp );
VectorSubtract( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 0;
tess.texCoords[tess.numVertexes][0][1] = 0;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorAdd( temp, vec1, temp );
VectorSubtract( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 0;
tess.texCoords[tess.numVertexes][0][1] = 1;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorAdd( temp, vec1, temp );
VectorAdd( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 1;
tess.texCoords[tess.numVertexes][0][1] = 1;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
VectorCopy( origin, temp );
VectorSubtract( temp, vec1, temp );
VectorAdd( temp, vec2, temp );
VectorCopy( temp, tess.xyz[tess.numVertexes] );
tess.texCoords[tess.numVertexes][0][0] = 1;
tess.texCoords[tess.numVertexes][0][1] = 0;
tess.vertexColors[tess.numVertexes][0] = 255;
tess.vertexColors[tess.numVertexes][1] = 255;
tess.vertexColors[tess.numVertexes][2] = 255;
tess.numVertexes++;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 1;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 0;
tess.indexes[tess.numIndexes++] = 2;
tess.indexes[tess.numIndexes++] = 3;
*/
RB_EndSurface();
if ( r_drawSun->integer > 1 ) { // draw flare effect
// (SA) FYI: This is cheezy and was only a test so far.
// If we decide to use the flare business I will /definatly/ improve all this
// get a point a little closer
dist = dist * 0.7;
VectorScale( tr.sunDirection, dist, origin );
// and make the flare a little smaller
VectorScale( vec1, 0.5f, vec1 );
VectorScale( vec2, 0.5f, vec2 );
// add the vectors to give an 'off angle' result
VectorAdd( tr.sunDirection, backEnd.viewParms.or.axis[0], temp );
VectorNormalize( temp );
// amplify the result
origin[0] += temp[0] * 500.0;
origin[1] += temp[1] * 500.0;
origin[2] += temp[2] * 500.0;
// (SA) FIXME: todo: flare effect should render last (on top of everything else) and only when sun is in view (sun moving out of camera past degree n should start to cause flare dimming until view angle to sun is off by angle n + x.
// draw the flare
RB_BeginSurface( tr.sunflareShader[0], tess.fogNum );
RB_AddQuadStamp( origin, vec1, vec2, color );
RB_EndSurface();
}
// back to normal depth range
qglDepthRange( 0.0, 1.0 );
}
/*
================
RB_StageIteratorSky
All of the visible sky triangles are in tess
Other things could be stuck in here, like birds in the sky, etc
================
*/
void RB_StageIteratorSky( void ) {
if ( r_fastsky->integer ) {
return;
}
// when portal sky exists, only render skybox for the portal sky scene
if ( skyboxportal && !( backEnd.refdef.rdflags & RDF_SKYBOXPORTAL ) ) {
return;
}
// does the current fog require fastsky?
if ( backEnd.viewParms.glFog.registered ) {
if ( !backEnd.viewParms.glFog.drawsky ) {
return;
}
} else if ( glfogNum > FOG_NONE ) {
if ( !glfogsettings[FOG_CURRENT].drawsky ) {
return;
}
}
backEnd.refdef.rdflags |= RDF_DRAWINGSKY;
// go through all the polygons and project them onto
// the sky box to see which blocks on each side need
// to be drawn
RB_ClipSkyPolygons( &tess );
// r_showsky will let all the sky blocks be drawn in
// front of everything to allow developers to see how
// much sky is getting sucked in
if ( r_showsky->integer ) {
qglDepthRange( 0.0, 0.0 );
} else {
qglDepthRange( 1.0, 1.0 );
}
// draw the outer skybox
if ( tess.shader->sky.outerbox[0] && tess.shader->sky.outerbox[0] != tr.defaultImage ) {
qglColor3f( tr.identityLight, tr.identityLight, tr.identityLight );
qglPushMatrix();
GL_State( 0 );
qglTranslatef( backEnd.viewParms.or.origin[0], backEnd.viewParms.or.origin[1], backEnd.viewParms.or.origin[2] );
DrawSkyBox( tess.shader );
qglPopMatrix();
}
// generate the vertexes for all the clouds, which will be drawn
// by the generic shader routine
R_BuildCloudData( &tess );
RB_StageIteratorGeneric();
// draw the inner skybox
// Rafael - drawing inner skybox
if ( tess.shader->sky.innerbox[0] && tess.shader->sky.innerbox[0] != tr.defaultImage ) {
qglColor3f( tr.identityLight, tr.identityLight, tr.identityLight );
qglPushMatrix();
GL_State( 0 );
qglTranslatef( backEnd.viewParms.or.origin[0], backEnd.viewParms.or.origin[1], backEnd.viewParms.or.origin[2] );
DrawSkyBoxInner( tess.shader );
qglPopMatrix();
}
// Rafael - end
// back to normal depth range
qglDepthRange( 0.0, 1.0 );
backEnd.refdef.rdflags &= ~RDF_DRAWINGSKY;
// note that sky was drawn so we will draw a sun later
backEnd.skyRenderedThisView = qtrue;
}
void CCamWnd::Cam_Draw()
{
brush_t *brush;
face_t *face;
float screenaspect;
float yfov;
double start, end;
int i;
/*
FILE *f = fopen("g:/nardo/raduffy/editorhack.dat", "w");
if (f != NULL) {
fwrite(&m_Camera.origin[0], sizeof(float), 1, f);
fwrite(&m_Camera.origin[1], sizeof(float), 1, f);
fwrite(&m_Camera.origin[2], sizeof(float), 1, f);
fwrite(&m_Camera.angles[PITCH], sizeof(float), 1, f);
fwrite(&m_Camera.angles[YAW], sizeof(float), 1, f);
fclose(f);
}
*/
if (!active_brushes.next)
return; // not valid yet
if (m_Camera.timing)
start = Sys_DoubleTime ();
//
// clear
//
QE_CheckOpenGLForErrors();
qglViewport(0, 0, m_Camera.width, m_Camera.height);
qglScissor(0, 0, m_Camera.width, m_Camera.height);
qglClearColor (g_qeglobals.d_savedinfo.colors[COLOR_CAMERABACK][0],
g_qeglobals.d_savedinfo.colors[COLOR_CAMERABACK][1],
g_qeglobals.d_savedinfo.colors[COLOR_CAMERABACK][2], 0);
qglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//
// set up viewpoint
//
vec5_t lightPos;
if (g_PrefsDlg.m_bGLLighting)
{
qglEnable(GL_LIGHTING);
//qglEnable(GL_LIGHT0);
lightPos[0] = lightPos[1] = lightPos[2] = 3.5;
lightPos[3] = 1.0;
qglLightModelfv(GL_LIGHT_MODEL_AMBIENT, lightPos);
//qglLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
//lightPos[0] = lightPos[1] = lightPos[2] = 3.5;
//qglLightfv(GL_LIGHT0, GL_AMBIENT, lightPos);
}
else
{
qglDisable(GL_LIGHTING);
}
qglMatrixMode(GL_PROJECTION);
qglLoadIdentity ();
screenaspect = (float)m_Camera.width / m_Camera.height;
yfov = 2*atan((float)m_Camera.height / m_Camera.width)*180/Q_PI;
qgluPerspective (yfov, screenaspect, 2, 8192);
qglRotatef (-90, 1, 0, 0); // put Z going up
qglRotatef (90, 0, 0, 1); // put Z going up
qglRotatef (m_Camera.angles[0], 0, 1, 0);
qglRotatef (-m_Camera.angles[1], 0, 0, 1);
qglTranslatef (-m_Camera.origin[0], -m_Camera.origin[1], -m_Camera.origin[2]);
Cam_BuildMatrix ();
//if (m_Camera.draw_mode == cd_light)
//{
// if (g_PrefsDlg.m_bGLLighting)
// {
// VectorCopy(m_Camera.origin, lightPos);
// lightPos[3] = 1;
// qglLightfv(GL_LIGHT0, GL_POSITION, lightPos);
// }
//}
InitCull ();
//
// draw stuff
//
GLfloat lAmbient[] = {1.0, 1.0, 1.0, 1.0};
switch (m_Camera.draw_mode)
{
case cd_wire:
qglPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
qglDisable(GL_TEXTURE_2D);
qglDisable(GL_TEXTURE_1D);
qglDisable(GL_BLEND);
qglDisable(GL_DEPTH_TEST);
qglColor3f(1.0, 1.0, 1.0);
// qglEnable (GL_LINE_SMOOTH);
break;
case cd_solid:
qglCullFace(GL_FRONT);
qglEnable(GL_CULL_FACE);
qglShadeModel (GL_FLAT);
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
qglDisable(GL_TEXTURE_2D);
qglDisable(GL_BLEND);
qglEnable(GL_DEPTH_TEST);
qglDepthFunc (GL_LEQUAL);
break;
case cd_texture:
qglCullFace(GL_FRONT);
qglEnable(GL_CULL_FACE);
qglShadeModel (GL_FLAT);
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
qglEnable(GL_TEXTURE_2D);
qglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
qglDisable(GL_BLEND);
qglEnable(GL_DEPTH_TEST);
qglDepthFunc (GL_LEQUAL);
break;
case cd_blend:
qglCullFace(GL_FRONT);
qglEnable(GL_CULL_FACE);
qglShadeModel (GL_FLAT);
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
qglEnable(GL_TEXTURE_2D);
qglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
qglDisable(GL_DEPTH_TEST);
qglEnable (GL_BLEND);
qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
break;
}
qglMatrixMode(GL_TEXTURE);
m_nNumTransBrushes = 0;
for (brush = active_brushes.next ; brush != &active_brushes ; brush=brush->next)
{
//DrawLightRadius(brush);
if (CullBrush (brush))
continue;
if (FilterBrush (brush))
continue;
if ((brush->brush_faces->texdef.flags & (SURF_TRANS33 | SURF_TRANS66)) || (brush->brush_faces->d_texture->bFromShader && brush->brush_faces->d_texture->fTrans != 1.0))
{
m_TransBrushes [ m_nNumTransBrushes++ ] = brush;
}
else
{
//-- if (brush->patchBrush)
//-- m_TransBrushes [ m_nNumTransBrushes++ ] = brush;
//-- else
Brush_Draw(brush);
}
}
if (g_PrefsDlg.m_bGLLighting)
{
qglDisable (GL_LIGHTING);
}
//
//qglDepthMask ( 0 ); // Don't write to depth buffer
qglEnable ( GL_BLEND );
qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
for ( i = 0; i < m_nNumTransBrushes; i++ )
Brush_Draw (m_TransBrushes[i]);
//qglDepthMask ( 1 ); // Ok, write now
qglMatrixMode(GL_PROJECTION);
//
// now draw selected brushes
//
if (g_PrefsDlg.m_bGLLighting)
{
qglEnable (GL_LIGHTING);
}
qglTranslatef (g_qeglobals.d_select_translate[0], g_qeglobals.d_select_translate[1], g_qeglobals.d_select_translate[2]);
qglMatrixMode(GL_TEXTURE);
brush_t* pList = (g_bClipMode && g_pSplitList) ? g_pSplitList : &selected_brushes;
// draw normally
for (brush = pList->next ; brush != pList ; brush=brush->next)
{
//DrawLightRadius(brush);
//if (brush->patchBrush && g_qeglobals.d_select_mode == sel_curvepoint)
// continue;
Brush_Draw(brush);
}
// blend on top
qglMatrixMode(GL_PROJECTION);
qglDisable (GL_LIGHTING);
qglColor4f(1.0, 0.0, 0.0, 0.3);
qglEnable (GL_BLEND);
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglDisable (GL_TEXTURE_2D);
for (brush = pList->next ; brush != pList ; brush=brush->next)
{
if ( (brush->patchBrush && g_qeglobals.d_select_mode == sel_curvepoint) ||
(brush->terrainBrush && g_qeglobals.d_select_mode == sel_terrainpoint) )
continue;
for (face=brush->brush_faces ; face ; face=face->next)
Face_Draw( face );
}
int nCount = g_ptrSelectedFaces.GetSize();
if (nCount > 0)
{
for (int i = 0; i < nCount; i++)
{
face_t *selFace = reinterpret_cast<face_t*>(g_ptrSelectedFaces.GetAt(i));
Face_Draw(selFace);
}
}
// non-zbuffered outline
qglDisable (GL_BLEND);
qglDisable (GL_DEPTH_TEST);
qglPolygonMode (GL_FRONT_AND_BACK, GL_LINE);
qglColor3f (1, 1, 1);
for (brush = pList->next ; brush != pList ; brush=brush->next)
{
if (g_qeglobals.dontDrawSelectedOutlines || (brush->patchBrush && g_qeglobals.d_select_mode == sel_curvepoint) ||
(brush->terrainBrush && g_qeglobals.d_select_mode == sel_terrainpoint))
continue;
for (face=brush->brush_faces ; face ; face=face->next)
Face_Draw( face );
}
// edge / vertex flags
if (g_qeglobals.d_select_mode == sel_vertex)
{
qglPointSize (4);
qglColor3f (0,1,0);
qglBegin (GL_POINTS);
for (i=0 ; i<g_qeglobals.d_numpoints ; i++)
qglVertex3fv (g_qeglobals.d_points[i]);
qglEnd ();
qglPointSize (1);
}
else if (g_qeglobals.d_select_mode == sel_edge)
{
float *v1, *v2;
qglPointSize (4);
qglColor3f (0,0,1);
qglBegin (GL_POINTS);
for (i=0 ; i<g_qeglobals.d_numedges ; i++)
{
v1 = g_qeglobals.d_points[g_qeglobals.d_edges[i].p1];
v2 = g_qeglobals.d_points[g_qeglobals.d_edges[i].p2];
qglVertex3f ( (v1[0]+v2[0])*0.5,(v1[1]+v2[1])*0.5,(v1[2]+v2[2])*0.5);
}
qglEnd ();
qglPointSize (1);
}
g_splineList->draw(static_cast<qboolean>(g_qeglobals.d_select_mode == sel_addpoint || g_qeglobals.d_select_mode == sel_editpoint));
if (g_qeglobals.selectObject && (g_qeglobals.d_select_mode == sel_addpoint || g_qeglobals.d_select_mode == sel_editpoint)) {
g_qeglobals.selectObject->drawSelection();
}
//
// draw pointfile
//
qglEnable(GL_DEPTH_TEST);
DrawPathLines ();
if (g_qeglobals.d_pointfile_display_list)
{
Pointfile_Draw();
// glCallList (g_qeglobals.d_pointfile_display_list);
}
// bind back to the default texture so that we don't have problems
// elsewhere using/modifying texture maps between contexts
qglBindTexture( GL_TEXTURE_2D, 0 );
#if 0
// area selection hack
if (g_qeglobals.d_select_mode == sel_area)
{
qglEnable (GL_BLEND);
qglBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
qglColor4f(0.0, 0.0, 1.0, 0.25);
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
qglRectfv(g_qeglobals.d_vAreaTL, g_qeglobals.d_vAreaBR);
qglDisable (GL_BLEND);
}
#endif
qglFinish();
QE_CheckOpenGLForErrors();
// Sys_EndWait();
if (m_Camera.timing)
{
end = Sys_DoubleTime ();
Sys_Printf ("Camera: %i ms\n", (int)(1000*(end-start)));
}
}
void GL_DrawBspModel( mmodel_t *model ) {
mface_t *face;
int count, mask = 0;
vec3_t bounds[2];
vec_t dot;
vec3_t transformed, temp;
entity_t *ent = glr.ent;
glCullResult_t cull;
if( glr.entrotated ) {
cull = GL_CullSphere( ent->origin, model->radius );
if( cull == CULL_OUT ) {
c.spheresCulled++;
return;
}
if( cull == CULL_CLIP ) {
VectorCopy( model->mins, bounds[0] );
VectorCopy( model->maxs, bounds[1] );
cull = GL_CullLocalBox( ent->origin, bounds );
if( cull == CULL_OUT ) {
c.rotatedBoxesCulled++;
return;
}
}
VectorSubtract( glr.fd.vieworg, ent->origin, temp );
transformed[0] = DotProduct( temp, glr.entaxis[0] );
transformed[1] = DotProduct( temp, glr.entaxis[1] );
transformed[2] = DotProduct( temp, glr.entaxis[2] );
} else {
VectorAdd( model->mins, ent->origin, bounds[0] );
VectorAdd( model->maxs, ent->origin, bounds[1] );
cull = GL_CullBox( bounds );
if( cull == CULL_OUT ) {
c.boxesCulled++;
return;
}
VectorSubtract( glr.fd.vieworg, ent->origin, transformed );
if( VectorEmpty( ent->origin ) && model->drawframe != glr.drawframe ) {
mask = SURF_TRANS33|SURF_TRANS66;
}
}
// protect against infinite loop if the same inline model
// with alpha faces is referenced by multiple entities
model->drawframe = glr.drawframe;
#if USE_DLIGHTS
glr.dlightframe++;
if( gl_dynamic->integer == 1 ) {
GL_TransformLights( model );
}
#endif
if( gl_dynamic->integer ) {
GL_BeginLights();
}
qglPushMatrix();
qglTranslatef( ent->origin[0], ent->origin[1], ent->origin[2] );
if( glr.entrotated ) {
qglRotatef( ent->angles[YAW], 0, 0, 1 );
qglRotatef( ent->angles[PITCH], 0, 1, 0 );
qglRotatef( ent->angles[ROLL], 1, 0, 0 );
}
// draw visible faces
// FIXME: go by headnode instead?
face = model->firstface;
count = model->numfaces;
while( count-- ) {
dot = PlaneDiffFast( transformed, face->plane );
if( BSP_CullFace( face, dot ) ) {
c.facesCulled++;
} else if( face->drawflags & mask ) {
// FIXME: alpha faces are not supported
// on rotated or translated inline models
GL_AddAlphaFace( face );
} else {
GL_AddSolidFace( face );
}
face++;
}
if( gl_dynamic->integer ) {
GL_EndLights();
}
GL_DrawSolidFaces();
qglPopMatrix();
}
void CRainSystem::Render(void)
{
int i;
SParticle *item;
vec4_t forward, down, left;
vec3_t pos;
// float percent;
float radius;
CWorldEffectsSystem::Render();
if (mFadeAlpha <= 0.0)
{
return;
}
VectorScale(backEnd.viewParms.or.axis[0], 1, forward); // forward
VectorScale(backEnd.viewParms.or.axis[1], 0.2f, left); // left
down[0] = 0 - mWindDirection[0] * mRainHeight * mWindAngle;
down[1] = 0 - mWindDirection[1] * mRainHeight * mWindAngle;
down[2] = -mRainHeight;
GL_Bind(mImage);
GL_State(GLS_ALPHA);
qglEnable(GL_TEXTURE_2D);
qglDisable(GL_CULL_FACE);
qglMatrixMode(GL_MODELVIEW);
qglPushMatrix();
qglTranslatef (backEnd.viewParms.or.origin[0], backEnd.viewParms.or.origin[1], backEnd.viewParms.or.origin[2]);
item = mRainList;
qglBegin(GL_TRIANGLES );
for(i=mMaxRain;i;i--)
{
/* percent = (item->pos[1] -(-20.0)) / (20.0 - (-20.0));
percent *= forward[2];
if (percent < 0.0)
{
radius = 10 * (percent + 1.0);
}
else
{
radius = 10 * (1.0 - percent);
}*/
radius = item->pos[1];
if (item->pos[2] < 0.0)
{
// radius *= 1.0 - (item->pos[2] / 40.0);
float alpha = mAlpha * (item->pos[1] / -item->pos[2]);
if (alpha > mAlpha)
{
alpha = mAlpha;
}
qglColor4f(1.0, 1.0, 1.0, alpha * mFadeAlpha);
}
else
{
qglColor4f(1.0, 1.0, 1.0, mAlpha * mFadeAlpha);
// radius *= 1.0 + (item->pos[2] / 20.0);
}
pos[0] = sin(item->pos[0]) * radius + (item->pos[2] * mWindDirection[0] * mWindAngle);
pos[1] = cos(item->pos[0]) * radius + (item->pos[2] * mWindDirection[1] * mWindAngle);
pos[2] = item->pos[2];
qglTexCoord2f(1.0, 0.0);
qglVertex3f(pos[0],
pos[1],
pos[2]);
qglTexCoord2f(0.0, 0.0);
qglVertex3f(pos[0] + left[0],
pos[1] + left[1],
pos[2] + left[2]);
qglTexCoord2f(0.0, 1.0);
qglVertex3f(pos[0] + down[0] + left[0],
pos[1] + down[1] + left[1],
pos[2] + down[2] + left[2]);
item++;
}
qglEnd();
qglEnable(GL_CULL_FACE);
qglPopMatrix();
}
/*
=============
RB_DrawRotatePic2
=============
*/
const void *RB_RotatePic2 ( const void *data )
{
const rotatePicCommand_t *cmd;
image_t *image;
shader_t *shader;
cmd = (const rotatePicCommand_t *)data;
shader = cmd->shader;
if ( shader->numUnfoggedPasses )
{
image = &shader->stages[0].bundle[0].image[0];
if ( image )
{
if ( !backEnd.projection2D )
{
RB_SetGL2D();
}
// Get our current blend mode, etc.
GL_State( shader->stages[0].stateBits );
qglColor4ubv( backEnd.color2D );
qglPushMatrix();
// rotation point is going to be around the center of the passed in coordinates
qglTranslatef( cmd->x, cmd->y, 0 );
qglRotatef( cmd->a, 0.0, 0.0, 1.0 );
GL_Bind( image );
#ifdef _XBOX
qglBeginEXT( GL_QUADS, 4, 0, 0, 4, 0);
#else
qglBegin( GL_QUADS );
#endif
qglTexCoord2f( cmd->s1, cmd->t1);
qglVertex2f( -cmd->w * 0.5f, -cmd->h * 0.5f );
qglTexCoord2f( cmd->s2, cmd->t1 );
qglVertex2f( cmd->w * 0.5f, -cmd->h * 0.5f );
qglTexCoord2f( cmd->s2, cmd->t2 );
qglVertex2f( cmd->w * 0.5f, cmd->h * 0.5f );
qglTexCoord2f( cmd->s1, cmd->t2 );
qglVertex2f( -cmd->w * 0.5f, cmd->h * 0.5f );
qglEnd();
qglPopMatrix();
// Hmmm, this is not too cool
GL_State( GLS_DEPTHTEST_DISABLE |
GLS_SRCBLEND_SRC_ALPHA |
GLS_DSTBLEND_ONE_MINUS_SRC_ALPHA );
}
}
return (const void *)(cmd + 1);
}
/*
================
RB_StageIteratorSky
All of the visible sky triangles are in tess
Other things could be stuck in here, like birds in the sky, etc
================
*/
void RB_StageIteratorSky( void )
{
if ( g_bRenderGlowingObjects )
return;
if ( r_fastsky->integer ) {
return;
}
if (skyboxportal && !(backEnd.refdef.rdflags & RDF_SKYBOXPORTAL))
{
return;
}
// go through all the polygons and project them onto
// the sky box to see which blocks on each side need
// to be drawn
RB_ClipSkyPolygons( &tess );
// r_showsky will let all the sky blocks be drawn in
// front of everything to allow developers to see how
// much sky is getting sucked in
if ( r_showsky->integer ) {
qglDepthRange( 0.0, 0.0 );
} else {
#ifdef _XBOX
qglDepthRange( 0.99, 1.0 );
#else
qglDepthRange( 1.0, 1.0 );
#endif
}
// draw the outer skybox
if ( tess.shader->sky->outerbox[0] && tess.shader->sky->outerbox[0] != tr.defaultImage ) {
qglColor3f( tr.identityLight, tr.identityLight, tr.identityLight );
qglPushMatrix ();
GL_State( 0 );
qglTranslatef (backEnd.viewParms.ori.origin[0], backEnd.viewParms.ori.origin[1], backEnd.viewParms.ori.origin[2]);
DrawSkyBox( tess.shader );
qglPopMatrix();
}
// generate the vertexes for all the clouds, which will be drawn
// by the generic shader routine
R_BuildCloudData( &tess );
if (tess.numIndexes && tess.numVertexes)
{
RB_StageIteratorGeneric();
}
// draw the inner skybox
// back to normal depth range
qglDepthRange( 0.0, 1.0 );
// note that sky was drawn so we will draw a sun later
backEnd.skyRenderedThisView = qtrue;
}
