/**
* @brief Primary entry point for drawing all entities.
* @sa R_RenderFrame
*/
void R_GetEntityLists (void)
{
int i;
entity_t** chain;
if (!r_drawentities->integer)
return;
r_opaque_mesh_entities = r_special_entities =
r_blend_mesh_entities = r_null_entities = nullptr;
for (i = 0; i < refdef.numEntities; i++) {
entity_t* e = &r_entities[i];
/* frustum cull check */
if (R_CullEntity(e))
continue;
R_CalcTransform(e);
if (!e->model) {
if ((e->flags & RF_BOX) || (e->flags & RF_PATH) || (e->flags & RF_ARROW))
chain = &r_special_entities;
else
chain = &r_null_entities;
} else {
const image_t* skin;
switch (e->model->type) {
case mod_bsp_submodel:
R_AddBspRRef(&(e->model->bsp), e->origin, e->angles, true);
continue;
case mod_alias_md2:
case mod_alias_md3:
case mod_obj:
skin = R_AliasModelState(e->model, &e->as.mesh, &e->as.frame, &e->as.oldframe, &e->skinnum);
if (skin == nullptr || skin->texnum == 0)
Com_Error(ERR_DROP, "Model '%s' has no skin assigned", e->model->name);
if (skin->has_alpha || (e->flags & RF_TRANSLUCENT))
chain = &r_blend_mesh_entities;
else
chain = &r_opaque_mesh_entities;
break;
default:
if (e->model->loaded)
Com_Error(ERR_DROP, "Unknown model type in R_GetEntityLists entity chain: %i (%s)",
e->model->type, e->model->name);
return;
}
}
e->next = *chain;
*chain = e;
}
}
/**
* @sa R_BeginFrame
* @sa R_EndFrame
*/
void R_RenderFrame (void)
{
R_Setup3D();
/* activate wire mode */
if (r_wire->integer)
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
if (!(refdef.rendererFlags & RDF_NOWORLDMODEL)) {
int tile;
if (r_threads->integer) {
while (r_threadstate.state != THREAD_RENDERER)
Sys_Sleep(0);
r_threadstate.state = THREAD_CLIENT;
} else {
R_SetupFrustum();
/* draw brushes on current worldlevel */
R_GetLevelSurfaceLists();
}
R_UpdateSustainedLights();
R_CheckError();
for (tile = 0; tile < r_numMapTiles; tile++) {
const model_t *mapTile = r_mapTiles[tile];
const mBspModel_t *bsp = &mapTile->bsp;
R_AddBspRRef(bsp, vec3_origin, vec3_origin, false);
}
R_GetEntityLists();
R_EnableFog(true);
R_RenderOpaqueBspRRefs();
R_RenderOpaqueWarpBspRRefs();
R_DrawOpaqueMeshEntities(r_opaque_mesh_entities);
R_RenderAlphaTestBspRRefs();
R_EnableBlend(true);
R_RenderMaterialBspRRefs();
R_EnableFog(false);
R_RenderBlendBspRRefs();
R_RenderBlendWarpBspRRefs();
R_DrawBlendMeshEntities(r_blend_mesh_entities);
R_EnableFog(true);
R_RenderFlareBspRRefs();
R_EnableFog(false);
if (r_debug_lights->integer) {
int i;
for (i = 0; i < refdef.numStaticLights; i++) {
const light_t *l = &refdef.staticLights[i];
R_AddCorona(l->origin, l->radius, l->color);
}
for (i = 0; i < refdef.numDynamicLights; i++) {
const light_t *l = &refdef.dynamicLights[i];
R_AddCorona(l->origin, l->radius, l->color);
}
}
R_DrawCoronas();
R_EnableBlend(false);
for (tile = 0; tile < r_numMapTiles; tile++) {
R_DrawBspNormals(tile);
}
R_Color(NULL);
R_DrawSpecialEntities(r_special_entities);
R_DrawNullEntities(r_null_entities);
R_DrawEntityEffects();
} else {
glClear(GL_DEPTH_BUFFER_BIT);
R_GetEntityLists();
R_RenderOpaqueBspRRefs();
R_RenderOpaqueWarpBspRRefs();
R_DrawOpaqueMeshEntities(r_opaque_mesh_entities);
R_RenderAlphaTestBspRRefs();
R_EnableBlend(true);
R_RenderMaterialBspRRefs();
R_RenderBlendBspRRefs();
R_RenderBlendWarpBspRRefs();
R_DrawBlendMeshEntities(r_blend_mesh_entities);
R_RenderFlareBspRRefs();
R_EnableBlend(false);
R_Color(NULL);
R_DrawSpecialEntities(r_special_entities);
R_DrawNullEntities(r_null_entities);
R_DrawEntityEffects();
}
R_EnableBlend(true);
R_DrawParticles();
R_EnableBlend(false);
/* leave wire mode again */
if (r_wire->integer)
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
R_DrawBloom();
R_DrawBoundingBoxes();
R_ResetArrayState();
/* go back into 2D mode for hud and the like */
R_Setup2D();
R_CheckError();
}