/*
* R_DrawCoronas
*/
void R_DrawCoronas( void )
{
unsigned int i;
float dist;
dlight_t *light;
rtrace_t tr;
if( r_dynamiclight->integer != 2 )
return;
for( i = 0; i < rsc.numDlights; i++ )
{
light = rsc.dlights + i;
dist =
rn.viewAxis[AXIS_FORWARD+0] * ( light->origin[0] - rn.viewOrigin[0] ) +
rn.viewAxis[AXIS_FORWARD+1] * ( light->origin[1] - rn.viewOrigin[1] ) +
rn.viewAxis[AXIS_FORWARD+2] * ( light->origin[2] - rn.viewOrigin[2] );
if( dist < 24.0f )
continue;
dist -= light->intensity;
R_TraceLine( &tr, light->origin, rn.viewOrigin, SURF_NONSOLID );
if( tr.fraction != 1.0f )
continue;
R_AddDSurfToDrawList( rsc.worldent,
R_FogForSphere( light->origin, 1 ),
r_coronaShader,
Distance( rn.viewOrigin, light->origin ), 0, NULL, &r_coronaSurfs[i] );
}
}
/*
* RF_GetShaderForOrigin
*
* Trace 64 units in all axial directions to find the closest surface
*/
shader_t *RF_GetShaderForOrigin( const vec3_t origin )
{
int i, j;
vec3_t dir, end;
rtrace_t tr;
shader_t *best = NULL;
float best_frac = 1000.0f;
for( i = 0; i < 3; i++ ) {
VectorClear( dir );
for( j = -1; j <= 1; j += 2 ) {
dir[i] = j;
VectorMA( origin, 64, dir, end );
R_TraceLine( &tr, origin, end, 0 );
if( !tr.shader ) {
continue;
}
if( tr.fraction < best_frac ) {
best = tr.shader;
best_frac = tr.fraction;
}
}
}
return best;
}
/*
* R_RenderDebugSurface
*/
static void R_RenderDebugSurface( const refdef_t *fd )
{
rtrace_t tr;
vec3_t forward;
vec3_t start, end;
msurface_t *surf;
if( fd->rdflags & RDF_NOWORLDMODEL )
return;
if( r_speeds->integer != 4 && r_speeds->integer != 5 )
return;
VectorCopy( &fd->viewaxis[AXIS_FORWARD], forward );
VectorCopy( fd->vieworg, start );
VectorMA( start, 4096, forward, end );
surf = R_TraceLine( &tr, start, end, 0 );
if( surf && surf->drawSurf && !r_showtris->integer )
{
R_ClearDrawList( rn.meshlist );
R_ClearDrawList( rn.portalmasklist );
if( !R_AddSurfToDrawList( rn.meshlist, R_NUM2ENT(tr.ent), NULL, surf->shader, 0, 0, NULL, surf->drawSurf ) ) {
return;
}
if( rn.refdef.rdflags & RDF_FLIPPED )
RB_FlipFrontFace();
rsc.debugSurface = surf;
if( r_speeds->integer == 5 ) {
// VBO debug mode
R_AddVBOSlice( surf->drawSurf - rsh.worldBrushModel->drawSurfaces,
surf->drawSurf->numVerts, surf->drawSurf->numElems,
0, 0 );
}
else {
// classic mode (showtris for individual surface)
R_AddVBOSlice( surf->drawSurf - rsh.worldBrushModel->drawSurfaces,
surf->mesh->numVerts, surf->mesh->numElems,
surf->firstDrawSurfVert, surf->firstDrawSurfElem );
}
R_DrawOutlinedSurfaces( rn.meshlist );
if( rn.refdef.rdflags & RDF_FLIPPED )
RB_FlipFrontFace();
}
}
