/*
================
R_RenderScene
r_refdef must be set before the first call
================
*/
void R_RenderScene (void)
{
R_SetupFrame ();
R_SetFrustum ();
R_SetupGL ();
R_MarkLeaves (); // done here so we know if we're in water
R_DrawWorld (); // adds static entities to the list
S_ExtraUpdate (); // don't let sound get messed up if going slow
R_DrawEntitiesOnList ();
GL_DisableMultitexture();
R_RenderDlights ();
R_DrawParticles ();
#ifdef GLTEST
Test_Draw ();
#endif
}
/*
================
R_RenderScene
================
*/
void R_RenderScene (void)
{
R_SetupScene (); //johnfitz -- this does everything that should be done once per call to RenderScene
Fog_EnableGFog (); //johnfitz
Sky_DrawSky (); //johnfitz
R_DrawWorld ();
S_ExtraUpdate (); // don't let sound get messed up if going slow
R_DrawShadows (); //johnfitz -- render entity shadows
R_DrawEntitiesOnList (false); //johnfitz -- false means this is the pass for nonalpha entities
R_DrawTextureChains_Water (); //johnfitz -- drawn here since they might have transparency
R_DrawEntitiesOnList (true); //johnfitz -- true means this is the pass for alpha entities
R_RenderDlights (); //triangle fan dlights -- johnfitz -- moved after water
R_DrawParticles ();
Fog_DisableGFog (); //johnfitz
R_DrawViewModel (); //johnfitz -- moved here from R_RenderView
R_ShowTris (); //johnfitz
R_ShowBoundingBoxes (); //johnfitz
}
/*
================
R_RenderScene
r_refdef must be set before the first call
================
*/
void R_RenderScene (void)
{
R_SetupFrame ();
R_SetFrustum ();
R_SetupGL ();
R_MarkLeaves (); // done here so we know if we're in water
/* Experimenting with lighting.
glEnable(GL_LIGHTING);
glShadeModel(GL_SMOOTH);
glEnable(GL_LIGHT0);
glEnable(GL_COLOR_MATERIAL);
GLfloat specular[4] = {1, 1, 1, 1};
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, specular);
int li = 0;
for (; li < 8; li += 1)
{
if (cl_dlights[li].die >= cl.time && cl_dlights[li].radius)
{
GLfloat pos[4] = { cl_dlights[li].origin[0], cl_dlights[li].origin[1], cl_dlights[li].origin[2], 1.0};
glLightfv(GL_LIGHT0+li, GL_POSITION, pos);
glLightf(GL_LIGHT0+li, GL_CONSTANT_ATTENUATION, 0.1);
glEnable(GL_LIGHT0+li);
}
else
{
break;
}
}
*/
R_DrawWorld (); // adds static entities to the list
S_ExtraUpdate (); // don't let sound get messed up if going slow
/*for (li -=1; li >= 0; li -= 1)
{
glDisable(GL_LIGHT0+li);
}
glDisable(GL_LIGHTING);*/
R_DrawEntitiesOnList ();
GL_DisableMultitexture();
R_RenderDlights ();
R_DrawParticles ();
#ifdef GLTEST
Test_Draw ();
#endif
}
/**
* @brief Draws the specified subset of elements.
*/
static void R_DrawElements_(const r_element_t *e, const size_t count) {
switch (e->type) {
case ELEMENT_BSP_SURFACE_BLEND:
R_DrawBspSurfaceElements(e, count, R_DrawBlendBspSurfaces);
break;
case ELEMENT_BSP_SURFACE_BLEND_WARP:
R_DrawBspSurfaceElements(e, count, R_DrawBlendWarpBspSurfaces);
break;
case ELEMENT_ENTITY:
break;
case ELEMENT_PARTICLE:
R_DrawParticles(e, count);
break;
default:
break;
}
}
/*
* @brief Main entry point for drawing the scene (world and entities).
*/
void R_DrawView(void) {
R_UpdateFrustum();
R_UpdateVis();
R_MarkBspSurfaces();
R_EnableFog(true);
R_DrawSkyBox();
// wait for the client to populate our lights array
Thread_Wait(&r_view.thread);
// now dispatch another thread to cull entities while we draw the world
r_view.thread = Thread_Create(R_CullEntities, NULL);
R_MarkLights();
const r_sorted_bsp_surfaces_t *surfs = r_model_state.world->bsp->sorted_surfaces;
R_DrawOpaqueBspSurfaces(&surfs->opaque);
R_DrawOpaqueWarpBspSurfaces(&surfs->opaque_warp);
R_DrawAlphaTestBspSurfaces(&surfs->alpha_test);
R_EnableBlend(true);
R_DrawBackBspSurfaces(&surfs->back);
R_DrawMaterialBspSurfaces(&surfs->material);
R_DrawFlareBspSurfaces(&surfs->flare);
R_EnableBlend(false);
R_DrawBspNormals();
// ensure the thread has finished culling entities
Thread_Wait(&r_view.thread);
// now dispatch another thread to update particles while we draw entities
r_view.thread = Thread_Create(R_UpdateParticles, NULL);
R_DrawEntities();
R_EnableBlend(true);
R_DrawBspLights();
R_DrawBlendBspSurfaces(&surfs->blend);
R_DrawBlendWarpBspSurfaces(&surfs->blend_warp);
// ensure the thread has finished updating particles
Thread_Wait(&r_view.thread);
R_DrawParticles();
R_EnableFog(false);
R_DrawCoronas();
R_DrawBspLeafs();
R_EnableBlend(false);
R_ResetArrayState();
}
/**
* @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();
}
// render frame (3-D part) ----------------------------------------------------
//
INLINE
void Gm_RenderFrame()
{
// maintain sound
AUDs_MaintainSound();
// reset polygon count
NumRenderedPolygons = 0;
// next visframe
CurVisibleFrame++;
if ( CurVisibleFrame == VISFRAME_NEVER ) {
CurVisibleFrame = VISFRAME_START;
}
// viewcam for 3-D frame
CAMERA_BeginFrameView();
// transform frustum into world-space
BackTransformVolume( ViewCamera, View_Volume, World_ViewVolume, 0x3f );
CULL_MakeVolumeCullVolume( World_ViewVolume, World_CullVolume, 0x3f );
// draw fixed stars/panorama
Gm_DrawFixedStars();
// draw pseudo stars
Gm_DrawPseudoStars();
// local ship always considered visible
MyShip->VisibleFrame = CurVisibleFrame;
// determine visible polygonal objects
ScanActiveObjects( ViewCamera );
CHECKMEMINTEGRITY();
CHECKLISTINTEGRITY();
// walk callbacks before drawing world objects
CALLBACK_WalkCallbacks( CBTYPE_DRAW_OBJECTS );
// draw visible polygonal objects
R_DrawWorld( ViewCamera );
// walk callbacks before drawing particles
CALLBACK_WalkCallbacks( CBTYPE_DRAW_PARTICLES );
// draw visible particles
R_DrawParticles();
// walk callbacks for custom iter objects
CALLBACK_WalkCallbacks( CBTYPE_DRAW_CUSTOM_ITER );
// walk callbacks before drawing effects
CALLBACK_WalkCallbacks( CBTYPE_DRAW_EFFECTS );
// draw lens flare
R_DrawLensFlare();
// standard viewcam
CAMERA_EndFrameView();
// maintain sound
AUDs_MaintainSound();
}
