/*
====================
RenderCommandBuffers
====================
*/
void idRenderSystemLocal::RenderCommandBuffers( const emptyCommand_t* const cmdHead )
{
// if there isn't a draw view command, do nothing to avoid swapping a bad frame
bool hasView = false;
for( const emptyCommand_t* cmd = cmdHead ; cmd ; cmd = ( const emptyCommand_t* )cmd->next )
{
if( cmd->commandId == RC_DRAW_VIEW_3D || cmd->commandId == RC_DRAW_VIEW_GUI )
{
hasView = true;
break;
}
}
if( !hasView )
{
return;
}
// r_skipBackEnd allows the entire time of the back end
// to be removed from performance measurements, although
// nothing will be drawn to the screen. If the prints
// are going to a file, or r_skipBackEnd is later disabled,
// usefull data can be received.
// r_skipRender is usually more usefull, because it will still
// draw 2D graphics
if( !r_skipBackEnd.GetBool() )
{
if( glConfig.timerQueryAvailable )
{
if( tr.timerQueryId == 0 )
{
qglGenQueriesARB( 1, & tr.timerQueryId );
}
qglBeginQueryARB( GL_TIME_ELAPSED_EXT, tr.timerQueryId );
RB_ExecuteBackEndCommands( cmdHead );
qglEndQueryARB( GL_TIME_ELAPSED_EXT );
qglFlush();
}
else
{
RB_ExecuteBackEndCommands( cmdHead );
}
}
// pass in null for now - we may need to do some map specific hackery in the future
resolutionScale.InitForMap( NULL );
}
/*
* R_IssueOcclusionQuery
*/
int R_IssueOcclusionQuery( int query, entity_t *e, vec3_t mins, vec3_t maxs )
{
static vec4_t verts[8];
static mesh_t mesh;
static elem_t indices[] =
{
0, 1, 2, 1, 2, 3, // top
7, 5, 6, 5, 6, 4, // bottom
4, 0, 6, 0, 6, 2, // front
3, 7, 1, 7, 1, 5, // back
0, 1, 4, 1, 4, 5, // left
7, 6, 3, 6, 3, 2, // right
};
int i;
vec3_t bbox[8];
if( query < 0 )
return -1;
if( r_queriesBits[query>>3] & ( 1<<( query&7 ) ) )
return -1;
r_queriesBits[query>>3] |= ( 1<<( query&7 ) );
R_RenderOccludingSurfaces();
mesh.numVerts = 8;
mesh.xyzArray = verts;
mesh.numElems = 36;
mesh.elems = indices;
r_occlusionShader->flags &= ~( SHADER_CULL_BACK | SHADER_CULL_FRONT );
qglBeginQueryARB( GL_SAMPLES_PASSED_ARB, r_occlusionQueries[query] );
R_TransformEntityBBox( e, mins, maxs, bbox, qfalse );
for( i = 0; i < 8; i++ )
Vector4Set( verts[i], bbox[i][0], bbox[i][1], bbox[i][2], 1 );
R_RotateForEntity( e );
R_BackendSetPassMask( GLSTATE_MASK & ~GLSTATE_DEPTHWRITE );
R_PushMesh( &mesh, qfalse, MF_NONBATCHED|MF_NOCULL );
R_RenderMeshBuffer( &r_occluderMB, NULL );
qglEndQueryARB( GL_SAMPLES_PASSED_ARB );
return query;
}
/*
* RB_RenderDrawSurfList
*/
void
RB_RenderDrawSurfList(drawSurf_t *drawSurfs, int numDrawSurfs)
{
material_t *shader, *oldShader;
int fogNum, oldFogNum;
int entityNum, oldEntityNum;
int dlighted, oldDlighted;
int pshadowed, oldPshadowed;
qbool depthRange, oldDepthRange, isCrosshair, wasCrosshair;
int i;
drawSurf_t *drawSurf;
int oldSort;
float originalTime;
float depth[2];
FBO_t * fbo = NULL;
qbool inQuery = qfalse;
/* save original time for entity shader offsets */
originalTime = backEnd.refdef.floatTime;
/* clear the z buffer, set the modelview, etc */
RB_BeginDrawingView ();
fbo = glState.currentFBO;
/* draw everything */
oldEntityNum = -1;
backEnd.currentEntity = &tr.worldEntity;
oldShader = NULL;
oldFogNum = -1;
oldDepthRange = qfalse;
wasCrosshair = qfalse;
oldDlighted = qfalse;
oldPshadowed = qfalse;
oldSort = -1;
depthRange = qfalse;
depth[0] = 0.f;
depth[1] = 1.f;
backEnd.pc.c_surfaces += numDrawSurfs;
for(i = 0, drawSurf = drawSurfs; i < numDrawSurfs; i++, drawSurf++){
if(drawSurf->sort == oldSort){
/* fast path, same as previous sort */
rb_surfaceTable[ *drawSurf->surface ](drawSurf->surface);
continue;
}
oldSort = drawSurf->sort;
R_DecomposeSort(drawSurf->sort, &entityNum, &shader, &fogNum, &dlighted, &pshadowed);
/*
* change the tess parameters if needed
* a "entityMergable" shader is a shader that can have surfaces from seperate
* entities merged into a single batch, like smoke and blood puff sprites */
if(shader != oldShader || fogNum != oldFogNum || dlighted != oldDlighted || pshadowed !=
oldPshadowed
|| (entityNum != oldEntityNum && !shader->entityMergable)){
if(oldShader != NULL){
RB_EndSurface();
}
RB_BeginSurface(shader, fogNum);
backEnd.pc.c_surfBatches++;
oldShader = shader;
oldFogNum = fogNum;
oldDlighted = dlighted;
oldPshadowed = pshadowed;
}
/*
* change the modelview matrix if needed
* */
if(entityNum != oldEntityNum){
qbool sunflare = qfalse;
depthRange = isCrosshair = qfalse;
#ifdef REACTION
/* if we were rendering to a FBO and the previous entity was a sunflare
* and the current one isn't, switch back to the main fbo */
if(oldEntityNum != -1 && fbo &&
RF_SUNFLARE == (backEnd.refdef.entities[oldEntityNum].e.renderfx & RF_SUNFLARE) &&
0 == (backEnd.refdef.entities[entityNum].e.renderfx & RF_SUNFLARE)){
if(inQuery){
inQuery = qfalse;
qglEndQueryARB(GL_SAMPLES_PASSED_ARB);
}
FBO_Bind(fbo);
qglDepthRange(depth[0], depth[1]);
}
#endif
if(entityNum != ENTITYNUM_WORLD){
backEnd.currentEntity = &backEnd.refdef.entities[entityNum];
backEnd.refdef.floatTime = originalTime - backEnd.currentEntity->e.shaderTime;
/* we have to reset the shaderTime as well otherwise image animations start
* from the wrong frame */
tess.shaderTime = backEnd.refdef.floatTime - tess.shader->timeOffset;
/* set up the transformation matrix */
R_RotateForEntity(backEnd.currentEntity, &backEnd.viewParms, &backEnd.or);
/* set up the dynamic lighting if needed */
if(backEnd.currentEntity->needDlights){
R_TransformDlights(backEnd.refdef.num_dlights, backEnd.refdef.dlights,
&backEnd.or);
}
#ifdef REACTION
/* if the current entity is a sunflare */
if(backEnd.currentEntity->e.renderfx & RF_SUNFLARE){
/* if we're rendering to a fbo */
if(fbo){
copyv3(backEnd.currentEntity->e.origin,
backEnd.sunFlarePos);
/* switch FBO */
FBO_Bind(tr.godRaysFbo);
qglClearColor(0.0f, 0.0f, 0.0f, 1.0f);
qglClear(GL_COLOR_BUFFER_BIT);
qglDepthRange(1.f, 1.f);
if(glRefConfig.occlusionQuery && !inQuery &&
!backEnd.hasSunFlare){
inQuery = qtrue;
tr.sunFlareQueryActive[tr.sunFlareQueryIndex] = qtrue;
qglBeginQueryARB(
GL_SAMPLES_PASSED_ARB,
tr.sunFlareQuery[tr.sunFlareQueryIndex]);
}
/* backEnd.hasSunFlare = qtrue; */
sunflare = qtrue;
}else{
depthRange = qtrue;
}
}
#endif
if(backEnd.currentEntity->e.renderfx & RF_DEPTHHACK){
/* hack the depth range to prevent view model from poking into walls */
depthRange = qtrue;
if(backEnd.currentEntity->e.renderfx & RF_CROSSHAIR)
isCrosshair = qtrue;
}
}else{
backEnd.currentEntity = &tr.worldEntity;
backEnd.refdef.floatTime = originalTime;
backEnd.or = backEnd.viewParms.world;
/* we have to reset the shaderTime as well otherwise image animations on
* the world (like water) continue with the wrong frame */
tess.shaderTime = backEnd.refdef.floatTime - tess.shader->timeOffset;
R_TransformDlights(backEnd.refdef.num_dlights, backEnd.refdef.dlights,
&backEnd.or);
}
GL_SetModelviewMatrix(backEnd.or.modelMatrix);
/*
* change depthrange. Also change projection matrix so first person weapon does not look like coming
* out of the screen.
* */
if(oldDepthRange != depthRange || wasCrosshair != isCrosshair){
if(depthRange){
if(backEnd.viewParms.stereoFrame != STEREO_CENTER){
if(isCrosshair){
if(oldDepthRange){
/* was not a crosshair but now is, change back proj matrix */
GL_SetProjectionMatrix(
backEnd.viewParms.projectionMatrix);
}
}else{
viewParms_t temp = backEnd.viewParms;
R_SetupProjection(&temp, r_znear->value, 0, qfalse);
GL_SetProjectionMatrix(temp.projectionMatrix);
}
}
#ifdef REACTION
if(!oldDepthRange){
depth[0] = 0;
depth[1] = 0.3f;
qglDepthRange (0, 0.3);
}
#endif
}else{
if(!wasCrosshair && backEnd.viewParms.stereoFrame != STEREO_CENTER){
GL_SetProjectionMatrix(backEnd.viewParms.projectionMatrix);
}
if(!sunflare)
qglDepthRange (0, 1);
depth[0] = 0;
depth[1] = 1;
}
oldDepthRange = depthRange;
wasCrosshair = isCrosshair;
}
oldEntityNum = entityNum;
}
/* add the triangles for this surface */
rb_surfaceTable[ *drawSurf->surface ](drawSurf->surface);
}
backEnd.refdef.floatTime = originalTime;
/* draw the contents of the last shader batch */
if(oldShader != NULL){
RB_EndSurface();
}
if(inQuery){
inQuery = qfalse;
qglEndQueryARB(GL_SAMPLES_PASSED_ARB);
}
FBO_Bind(fbo);
/* go back to the world modelview matrix */
GL_SetModelviewMatrix(backEnd.viewParms.world.modelMatrix);
/* if ( depthRange ) { */
qglDepthRange (0, 1);
/* } */
#if 0
RB_DrawSun();
#endif
/* darken down any stencil shadows */
RB_ShadowFinish();
/* add light flares on lights that aren't obscured */
RB_RenderFlares();
if(glRefConfig.framebufferObject)
FBO_Bind(NULL);
}
/*
=============
RB_DrawSurfs
=============
*/
const void *RB_DrawSurfs( const void *data ) {
const drawSurfsCommand_t *cmd;
// finish any 2D drawing if needed
if ( tess.numIndexes ) {
RB_EndSurface();
}
cmd = (const drawSurfsCommand_t *)data;
backEnd.refdef = cmd->refdef;
backEnd.viewParms = cmd->viewParms;
// clear the z buffer, set the modelview, etc
RB_BeginDrawingView ();
if (glRefConfig.framebufferObject && (backEnd.viewParms.flags & VPF_DEPTHCLAMP) && glRefConfig.depthClamp)
{
qglEnable(GL_DEPTH_CLAMP);
}
if (glRefConfig.framebufferObject && !(backEnd.refdef.rdflags & RDF_NOWORLDMODEL) && (r_depthPrepass->integer || (backEnd.viewParms.flags & VPF_DEPTHSHADOW)))
{
FBO_t *oldFbo = glState.currentFBO;
backEnd.depthFill = qtrue;
qglColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
RB_RenderDrawSurfList( cmd->drawSurfs, cmd->numDrawSurfs );
qglColorMask(!backEnd.colorMask[0], !backEnd.colorMask[1], !backEnd.colorMask[2], !backEnd.colorMask[3]);
backEnd.depthFill = qfalse;
if (tr.msaaResolveFbo)
{
// If we're using multisampling, resolve the depth first
FBO_FastBlit(tr.renderFbo, NULL, tr.msaaResolveFbo, NULL, GL_DEPTH_BUFFER_BIT, GL_NEAREST);
}
else if (tr.renderFbo == NULL)
{
// If we're rendering directly to the screen, copy the depth to a texture
GL_BindToTMU(tr.renderDepthImage, 0);
qglCopyTexImage2D(GL_TEXTURE_2D, 0, GL_DEPTH_COMPONENT24, 0, 0, glConfig.vidWidth, glConfig.vidHeight, 0);
}
if (r_ssao->integer)
{
// need the depth in a texture we can do GL_LINEAR sampling on, so copy it to an HDR image
FBO_BlitFromTexture(tr.renderDepthImage, NULL, NULL, tr.hdrDepthFbo, NULL, NULL, NULL, 0);
}
if (r_sunlightMode->integer && backEnd.viewParms.flags & VPF_USESUNLIGHT)
{
vec4_t quadVerts[4];
vec2_t texCoords[4];
vec4_t box;
FBO_Bind(tr.screenShadowFbo);
box[0] = backEnd.viewParms.viewportX * tr.screenShadowFbo->width / (float)glConfig.vidWidth;
box[1] = backEnd.viewParms.viewportY * tr.screenShadowFbo->height / (float)glConfig.vidHeight;
box[2] = backEnd.viewParms.viewportWidth * tr.screenShadowFbo->width / (float)glConfig.vidWidth;
box[3] = backEnd.viewParms.viewportHeight * tr.screenShadowFbo->height / (float)glConfig.vidHeight;
qglViewport(box[0], box[1], box[2], box[3]);
qglScissor(box[0], box[1], box[2], box[3]);
box[0] = backEnd.viewParms.viewportX / (float)glConfig.vidWidth;
box[1] = backEnd.viewParms.viewportY / (float)glConfig.vidHeight;
box[2] = box[0] + backEnd.viewParms.viewportWidth / (float)glConfig.vidWidth;
box[3] = box[1] + backEnd.viewParms.viewportHeight / (float)glConfig.vidHeight;
texCoords[0][0] = box[0]; texCoords[0][1] = box[3];
texCoords[1][0] = box[2]; texCoords[1][1] = box[3];
texCoords[2][0] = box[2]; texCoords[2][1] = box[1];
texCoords[3][0] = box[0]; texCoords[3][1] = box[1];
box[0] = -1.0f;
box[1] = -1.0f;
box[2] = 1.0f;
box[3] = 1.0f;
VectorSet4(quadVerts[0], box[0], box[3], 0, 1);
VectorSet4(quadVerts[1], box[2], box[3], 0, 1);
VectorSet4(quadVerts[2], box[2], box[1], 0, 1);
VectorSet4(quadVerts[3], box[0], box[1], 0, 1);
GL_State( GLS_DEPTHTEST_DISABLE );
GLSL_BindProgram(&tr.shadowmaskShader);
GL_BindToTMU(tr.renderDepthImage, TB_COLORMAP);
if (r_shadowCascadeZFar->integer != 0)
{
GL_BindToTMU(tr.sunShadowDepthImage[0], TB_SHADOWMAP);
GL_BindToTMU(tr.sunShadowDepthImage[1], TB_SHADOWMAP2);
GL_BindToTMU(tr.sunShadowDepthImage[2], TB_SHADOWMAP3);
GL_BindToTMU(tr.sunShadowDepthImage[3], TB_SHADOWMAP4);
GLSL_SetUniformMat4(&tr.shadowmaskShader, UNIFORM_SHADOWMVP, backEnd.refdef.sunShadowMvp[0]);
GLSL_SetUniformMat4(&tr.shadowmaskShader, UNIFORM_SHADOWMVP2, backEnd.refdef.sunShadowMvp[1]);
GLSL_SetUniformMat4(&tr.shadowmaskShader, UNIFORM_SHADOWMVP3, backEnd.refdef.sunShadowMvp[2]);
GLSL_SetUniformMat4(&tr.shadowmaskShader, UNIFORM_SHADOWMVP4, backEnd.refdef.sunShadowMvp[3]);
}
else
{
GL_BindToTMU(tr.sunShadowDepthImage[3], TB_SHADOWMAP);
GLSL_SetUniformMat4(&tr.shadowmaskShader, UNIFORM_SHADOWMVP, backEnd.refdef.sunShadowMvp[3]);
}
GLSL_SetUniformVec3(&tr.shadowmaskShader, UNIFORM_VIEWORIGIN, backEnd.refdef.vieworg);
{
vec4_t viewInfo;
vec3_t viewVector;
float zmax = backEnd.viewParms.zFar;
float ymax = zmax * tan(backEnd.viewParms.fovY * M_PI / 360.0f);
float xmax = zmax * tan(backEnd.viewParms.fovX * M_PI / 360.0f);
float zmin = r_znear->value;
VectorScale(backEnd.refdef.viewaxis[0], zmax, viewVector);
GLSL_SetUniformVec3(&tr.shadowmaskShader, UNIFORM_VIEWFORWARD, viewVector);
VectorScale(backEnd.refdef.viewaxis[1], xmax, viewVector);
GLSL_SetUniformVec3(&tr.shadowmaskShader, UNIFORM_VIEWLEFT, viewVector);
VectorScale(backEnd.refdef.viewaxis[2], ymax, viewVector);
GLSL_SetUniformVec3(&tr.shadowmaskShader, UNIFORM_VIEWUP, viewVector);
VectorSet4(viewInfo, zmax / zmin, zmax, 0.0, 0.0);
GLSL_SetUniformVec4(&tr.shadowmaskShader, UNIFORM_VIEWINFO, viewInfo);
}
RB_InstantQuad2(quadVerts, texCoords); //, color, shaderProgram, invTexRes);
}
if (r_ssao->integer)
{
vec4_t quadVerts[4];
vec2_t texCoords[4];
FBO_Bind(tr.quarterFbo[0]);
qglViewport(0, 0, tr.quarterFbo[0]->width, tr.quarterFbo[0]->height);
qglScissor(0, 0, tr.quarterFbo[0]->width, tr.quarterFbo[0]->height);
VectorSet4(quadVerts[0], -1, 1, 0, 1);
VectorSet4(quadVerts[1], 1, 1, 0, 1);
VectorSet4(quadVerts[2], 1, -1, 0, 1);
VectorSet4(quadVerts[3], -1, -1, 0, 1);
texCoords[0][0] = 0; texCoords[0][1] = 1;
texCoords[1][0] = 1; texCoords[1][1] = 1;
texCoords[2][0] = 1; texCoords[2][1] = 0;
texCoords[3][0] = 0; texCoords[3][1] = 0;
GL_State( GLS_DEPTHTEST_DISABLE );
GLSL_BindProgram(&tr.ssaoShader);
GL_BindToTMU(tr.hdrDepthImage, TB_COLORMAP);
{
vec4_t viewInfo;
float zmax = backEnd.viewParms.zFar;
float zmin = r_znear->value;
VectorSet4(viewInfo, zmax / zmin, zmax, 0.0, 0.0);
GLSL_SetUniformVec4(&tr.ssaoShader, UNIFORM_VIEWINFO, viewInfo);
}
RB_InstantQuad2(quadVerts, texCoords); //, color, shaderProgram, invTexRes);
FBO_Bind(tr.quarterFbo[1]);
qglViewport(0, 0, tr.quarterFbo[1]->width, tr.quarterFbo[1]->height);
qglScissor(0, 0, tr.quarterFbo[1]->width, tr.quarterFbo[1]->height);
GLSL_BindProgram(&tr.depthBlurShader[0]);
GL_BindToTMU(tr.quarterImage[0], TB_COLORMAP);
GL_BindToTMU(tr.hdrDepthImage, TB_LIGHTMAP);
{
vec4_t viewInfo;
float zmax = backEnd.viewParms.zFar;
float zmin = r_znear->value;
VectorSet4(viewInfo, zmax / zmin, zmax, 0.0, 0.0);
GLSL_SetUniformVec4(&tr.depthBlurShader[0], UNIFORM_VIEWINFO, viewInfo);
}
RB_InstantQuad2(quadVerts, texCoords); //, color, shaderProgram, invTexRes);
FBO_Bind(tr.screenSsaoFbo);
qglViewport(0, 0, tr.screenSsaoFbo->width, tr.screenSsaoFbo->height);
qglScissor(0, 0, tr.screenSsaoFbo->width, tr.screenSsaoFbo->height);
GLSL_BindProgram(&tr.depthBlurShader[1]);
GL_BindToTMU(tr.quarterImage[1], TB_COLORMAP);
GL_BindToTMU(tr.hdrDepthImage, TB_LIGHTMAP);
{
vec4_t viewInfo;
float zmax = backEnd.viewParms.zFar;
float zmin = r_znear->value;
VectorSet4(viewInfo, zmax / zmin, zmax, 0.0, 0.0);
GLSL_SetUniformVec4(&tr.depthBlurShader[1], UNIFORM_VIEWINFO, viewInfo);
}
RB_InstantQuad2(quadVerts, texCoords); //, color, shaderProgram, invTexRes);
}
// reset viewport and scissor
FBO_Bind(oldFbo);
SetViewportAndScissor();
}
if (glRefConfig.framebufferObject && (backEnd.viewParms.flags & VPF_DEPTHCLAMP) && glRefConfig.depthClamp)
{
qglDisable(GL_DEPTH_CLAMP);
}
if (!(backEnd.viewParms.flags & VPF_DEPTHSHADOW))
{
RB_RenderDrawSurfList( cmd->drawSurfs, cmd->numDrawSurfs );
if (r_drawSun->integer)
{
RB_DrawSun(0.1, tr.sunShader);
}
if (r_drawSunRays->integer)
{
FBO_t *oldFbo = glState.currentFBO;
FBO_Bind(tr.sunRaysFbo);
qglClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
qglClear( GL_COLOR_BUFFER_BIT );
if (glRefConfig.occlusionQuery)
{
tr.sunFlareQueryActive[tr.sunFlareQueryIndex] = qtrue;
qglBeginQueryARB(GL_SAMPLES_PASSED_ARB, tr.sunFlareQuery[tr.sunFlareQueryIndex]);
}
RB_DrawSun(0.3, tr.sunFlareShader);
if (glRefConfig.occlusionQuery)
{
qglEndQueryARB(GL_SAMPLES_PASSED_ARB);
}
FBO_Bind(oldFbo);
}
// darken down any stencil shadows
RB_ShadowFinish();
// add light flares on lights that aren't obscured
RB_RenderFlares();
}
if (glRefConfig.framebufferObject && tr.renderCubeFbo && backEnd.viewParms.targetFbo == tr.renderCubeFbo)
{
FBO_Bind(NULL);
GL_SelectTexture(TB_CUBEMAP);
GL_BindToTMU(tr.cubemaps[backEnd.viewParms.targetFboCubemapIndex], TB_CUBEMAP);
qglGenerateMipmapEXT(GL_TEXTURE_CUBE_MAP);
GL_SelectTexture(0);
}
return (const void *)(cmd + 1);
}