/*
* R_SetSurfaceState_default
*/
static void R_SetSurfaceState_default(const r_bsp_surface_t *surf) {
r_image_t *image;
float a;
if (r_state.blend_enabled) { // alpha blend
switch (surf->texinfo->flags & (SURF_BLEND_33 | SURF_BLEND_66)) {
case SURF_BLEND_33:
a = 0.33;
break;
case SURF_BLEND_66:
a = 0.66;
break;
default: // both flags mean use the texture's alpha channel
a = 1.0;
break;
}
glColor4f(1.0, 1.0, 1.0, a);
}
image = surf->texinfo->image;
if (texunit_diffuse.enabled) // diffuse texture
R_BindTexture(image->texnum);
if (texunit_lightmap.enabled) // lightmap texture
R_BindLightmapTexture(surf->lightmap_texnum);
if (r_state.lighting_enabled) { // hardware lighting
if (r_bumpmap->value) { // bump mapping
if (image->normalmap) {
R_BindDeluxemapTexture(surf->deluxemap_texnum);
R_BindNormalmapTexture(image->normalmap->texnum);
R_EnableBumpmap(&image->material, true);
} else
R_EnableBumpmap(NULL, false);
}
if (surf->light_frame == r_locals.light_frame) // dynamic light sources
R_EnableLights(surf->lights);
else
R_EnableLights(0);
}
}
void R_SetSurfaceBumpMappingParameters (const mBspSurface_t *surf, const image_t *normalMap, const image_t *specularMap)
{
if (!r_state.lighting_enabled)
return;
if (!r_bumpmap->value)
return;
assert(surf);
if (normalMap && (surf->flags & MSURF_LIGHTMAP)) {
const image_t *image = surf->texinfo->image;
R_BindDeluxemapTexture(surf->deluxemap_texnum);
R_EnableBumpmap(normalMap);
R_EnableSpecularMap(specularMap, true);
R_UseMaterial(&image->material);
} else {
R_EnableBumpmap(NULL);
R_EnableSpecularMap(NULL, false);
R_UseMaterial(NULL);
}
}
