/*
==============
RenderBumpTriangles
==============
*/
static void RenderBumpTriangles( srfTriangles_t *lowMesh, renderBump_t *rb ) {
int i, j;
RB_SetGL2D();
qglDisable( GL_CULL_FACE );
qglColor3f( 1, 1, 1 );
qglMatrixMode( GL_PROJECTION );
qglLoadIdentity();
qglOrtho( 0, 1, 1, 0, -1, 1 );
qglDisable( GL_BLEND );
qglMatrixMode( GL_MODELVIEW );
qglLoadIdentity();
qglDisable( GL_DEPTH_TEST );
qglClearColor(1,0,0,1);
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
qglColor3f( 1, 1, 1 );
// create smoothed normals for the surface, which might be
// different than the normals at the vertexes if the
// surface uses unsmoothedNormals, which only takes the
// normal from a single triangle. We need properly smoothed
// normals to make sure that the traces always go off normal
// to the true surface.
idVec3 *lowMeshNormals = (idVec3 *)Mem_ClearedAlloc( lowMesh->numVerts * sizeof( *lowMeshNormals ) );
R_DeriveFacePlanes( lowMesh );
R_CreateSilIndexes( lowMesh ); // recreate, merging the mirrored verts back together
const idPlane *planes = lowMesh->facePlanes;
for ( i = 0 ; i < lowMesh->numIndexes ; i += 3, planes++ ) {
for ( j = 0 ; j < 3 ; j++ ) {
int index;
index = lowMesh->silIndexes[i+j];
lowMeshNormals[index] += (*planes).Normal();
}
}
// normalize and replicate from silIndexes to all indexes
for ( i = 0 ; i < lowMesh->numIndexes ; i++ ) {
lowMeshNormals[lowMesh->indexes[i]] = lowMeshNormals[lowMesh->silIndexes[i]];
lowMeshNormals[lowMesh->indexes[i]].Normalize();
}
// rasterize each low poly face
for ( j = 0 ; j < lowMesh->numIndexes ; j+=3 ) {
// pump the event loop so the window can be dragged around
Sys_GenerateEvents();
RasterizeTriangle( lowMesh, lowMeshNormals, j/3, rb );
qglClearColor(1,0,0,1);
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
qglRasterPos2f( 0, 1 );
qglPixelZoom( glConfig.vidWidth / (float)rb->width, glConfig.vidHeight / (float)rb->height );
qglDrawPixels( rb->width, rb->height, GL_RGBA, GL_UNSIGNED_BYTE, rb->localPic );
qglPixelZoom( 1, 1 );
qglFlush();
GLimp_SwapBuffers();
}
Mem_Free( lowMeshNormals );
}
/*
==================
RB_ARB2_DrawInteractions
==================
*/
void RB_ARB2_DrawInteractions( void ) {
viewLight_t *vLight;
const idMaterial *lightShader;
GL_SelectTexture( 0 );
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
//
// for each light, perform adding and shadowing
//
for ( vLight = backEnd.viewDef->viewLights ; vLight ; vLight = vLight->next ) {
backEnd.vLight = vLight;
// do fogging later
if ( vLight->lightShader->IsFogLight() ) {
continue;
}
if ( vLight->lightShader->IsBlendLight() ) {
continue;
}
if ( !vLight->localInteractions && !vLight->globalInteractions
&& !vLight->translucentInteractions ) {
continue;
}
lightShader = vLight->lightShader;
// clear the stencil buffer if needed
if ( vLight->globalShadows || vLight->localShadows ) {
backEnd.currentScissor = vLight->scissorRect;
if ( r_useScissor.GetBool() ) {
qglScissor( backEnd.viewDef->viewport.x1 + backEnd.currentScissor.x1,
backEnd.viewDef->viewport.y1 + backEnd.currentScissor.y1,
backEnd.currentScissor.x2 + 1 - backEnd.currentScissor.x1,
backEnd.currentScissor.y2 + 1 - backEnd.currentScissor.y1 );
}
qglClear( GL_STENCIL_BUFFER_BIT );
} else {
// no shadows, so no need to read or write the stencil buffer
// we might in theory want to use GL_ALWAYS instead of disabling
// completely, to satisfy the invarience rules
qglStencilFunc( GL_ALWAYS, 128, 255 );
}
if ( r_useShadowVertexProgram.GetBool() ) {
qglEnable( GL_VERTEX_PROGRAM_ARB );
qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, VPROG_STENCIL_SHADOW );
RB_StencilShadowPass( vLight->globalShadows );
RB_ARB2_CreateDrawInteractions( vLight->localInteractions );
qglEnable( GL_VERTEX_PROGRAM_ARB );
qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, VPROG_STENCIL_SHADOW );
RB_StencilShadowPass( vLight->localShadows );
RB_ARB2_CreateDrawInteractions( vLight->globalInteractions );
qglDisable( GL_VERTEX_PROGRAM_ARB ); // if there weren't any globalInteractions, it would have stayed on
} else {
RB_StencilShadowPass( vLight->globalShadows );
RB_ARB2_CreateDrawInteractions( vLight->localInteractions );
RB_StencilShadowPass( vLight->localShadows );
RB_ARB2_CreateDrawInteractions( vLight->globalInteractions );
}
// translucent surfaces never get stencil shadowed
if ( r_skipTranslucent.GetBool() ) {
continue;
}
qglStencilFunc( GL_ALWAYS, 128, 255 );
backEnd.depthFunc = GLS_DEPTHFUNC_LESS;
RB_ARB2_CreateDrawInteractions( vLight->translucentInteractions );
backEnd.depthFunc = GLS_DEPTHFUNC_EQUAL;
}
// disable stencil shadow test
qglStencilFunc( GL_ALWAYS, 128, 255 );
GL_SelectTexture( 0 );
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
}
void idGLDrawableMaterial::draw(int x, int y, int w, int h) {
const idMaterial *mat = material;
if (mat) {
qglViewport(x, y, w, h);
qglScissor(x, y, w, h);
qglMatrixMode(GL_PROJECTION);
qglClearColor( 0.1f, 0.1f, 0.1f, 0.0f );
qglClear(GL_COLOR_BUFFER_BIT);
if (worldDirty) {
InitWorld();
renderLight_t parms;
idDict spawnArgs;
spawnArgs.Set("classname", "light");
spawnArgs.Set("name", "light_1");
spawnArgs.Set("origin", "0 0 0");
idStr str;
sprintf(str, "%f %f %f", light, light, light);
spawnArgs.Set("_color", str);
gameEdit->ParseSpawnArgsToRenderLight( &spawnArgs, &parms );
lightDef = world->AddLightDef( &parms );
idImage *img = (mat->GetNumStages() > 0) ? mat->GetStage(0)->texture.image : mat->GetEditorImage();
if (img == NULL) {
common->Warning("Unable to load image for preview for %s", mat->GetName());
return;
}
int width = img->uploadWidth;
int height = img->uploadHeight;
width *= scale;
height *= scale;
srfTriangles_t *tris = worldModel->AllocSurfaceTriangles( 4, 6 );
tris->numVerts = 4;
tris->numIndexes = 6;
tris->indexes[0] = 0;
tris->indexes[1] = 1;
tris->indexes[2] = 2;
tris->indexes[3] = 3;
tris->indexes[4] = 1;
tris->indexes[5] = 0;
tris->verts[0].xyz.x = 64;
tris->verts[0].xyz.y = -xOffset + 0 - width / 2;
tris->verts[0].xyz.z = yOffset + 0 - height / 2;
tris->verts[0].st.x = 1;
tris->verts[0].st.y = 1;
tris->verts[1].xyz.x = 64;
tris->verts[1].xyz.y = -xOffset + width / 2;
tris->verts[1].xyz.z = yOffset + height / 2;
tris->verts[1].st.x = 0;
tris->verts[1].st.y = 0;
tris->verts[2].xyz.x = 64;
tris->verts[2].xyz.y = -xOffset + 0 - width / 2;
tris->verts[2].xyz.z = yOffset + height / 2;
tris->verts[2].st.x = 1;
tris->verts[2].st.y = 0;
tris->verts[3].xyz.x = 64;
tris->verts[3].xyz.y = -xOffset + width / 2;
tris->verts[3].xyz.z = yOffset + 0 - height / 2;
tris->verts[3].st.x = 0;
tris->verts[3].st.y = 1;
tris->verts[0].normal = tris->verts[1].xyz.Cross(tris->verts[3].xyz);
tris->verts[1].normal = tris->verts[2].normal = tris->verts[3].normal = tris->verts[0].normal;
AddTris(tris, mat);
worldModel->FinishSurfaces();
renderEntity_t worldEntity;
memset( &worldEntity, 0, sizeof( worldEntity ) );
if ( mat->HasGui() ) {
worldEntity.gui[ 0 ] = mat->GlobalGui();
}
worldEntity.hModel = worldModel;
worldEntity.axis = mat3_default;
worldEntity.shaderParms[0] = 1;
worldEntity.shaderParms[1] = 1;
worldEntity.shaderParms[2] = 1;
worldEntity.shaderParms[3] = 1;
modelDef = world->AddEntityDef( &worldEntity );
worldDirty = false;
}
renderView_t refdef;
// render it
renderSystem->BeginFrame(w, h);
memset( &refdef, 0, sizeof( refdef ) );
refdef.vieworg.Set(viewAngle, 0, 0);
refdef.viewaxis = idAngles(0,0,0).ToMat3();
refdef.shaderParms[0] = 1;
refdef.shaderParms[1] = 1;
refdef.shaderParms[2] = 1;
refdef.shaderParms[3] = 1;
refdef.width = SCREEN_WIDTH;
refdef.height = SCREEN_HEIGHT;
refdef.fov_x = 90;
refdef.fov_y = 2 * atan((float)h / w) * idMath::M_RAD2DEG;
refdef.time = eventLoop->Milliseconds();
world->RenderScene( &refdef );
int frontEnd, backEnd;
renderSystem->EndFrame( &frontEnd, &backEnd );
qglMatrixMode( GL_MODELVIEW );
qglLoadIdentity();
}
}
/*
* 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_BeginDrawingView
Any mirrored or portaled views have already been drawn, so prepare
to actually render the visible surfaces for this view
=================
*/
void RB_BeginDrawingView (void) {
int clearBits = 0;
// sync with gl if needed
if ( r_finish->integer == 1 && !glState.finishCalled ) {
qglFinish ();
glState.finishCalled = qtrue;
}
if ( r_finish->integer == 0 ) {
glState.finishCalled = qtrue;
}
// we will need to change the projection matrix before drawing
// 2D images again
backEnd.projection2D = qfalse;
//
// set the modelview matrix for the viewer
//
SetViewportAndScissor();
// ensures that depth writes are enabled for the depth clear
GL_State( GLS_DEFAULT );
// clear relevant buffers
clearBits = GL_DEPTH_BUFFER_BIT;
if ( r_measureOverdraw->integer || r_shadows->integer == 2 )
{
clearBits |= GL_STENCIL_BUFFER_BIT;
}
if ( r_fastsky->integer && !( backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) )
{
clearBits |= GL_COLOR_BUFFER_BIT; // FIXME: only if sky shaders have been used
qglClearColor( 0.8f, 0.7f, 0.4f, 1 ); // FIXME: get color of sky
}
qglClear( clearBits );
if ( ( backEnd.refdef.rdflags & RDF_HYPERSPACE ) )
{
RB_Hyperspace();
return;
}
else
{
backEnd.isHyperspace = qfalse;
}
glState.faceCulling = -1; // force face culling to set next time
// we will only draw a sun if there was sky rendered in this view
backEnd.skyRenderedThisView = qfalse;
// clip to the plane of the portal
if ( backEnd.viewParms.isPortal ) {
float plane[4];
double plane2[4];
plane[0] = backEnd.viewParms.portalPlane.normal[0];
plane[1] = backEnd.viewParms.portalPlane.normal[1];
plane[2] = backEnd.viewParms.portalPlane.normal[2];
plane[3] = backEnd.viewParms.portalPlane.dist;
plane2[0] = DotProduct (backEnd.viewParms.or.axis[0], plane);
plane2[1] = DotProduct (backEnd.viewParms.or.axis[1], plane);
plane2[2] = DotProduct (backEnd.viewParms.or.axis[2], plane);
plane2[3] = DotProduct (plane, backEnd.viewParms.or.origin) - plane[3];
qglLoadMatrixf( s_flipMatrix );
qglClipPlane (GL_CLIP_PLANE0, plane2);
qglEnable (GL_CLIP_PLANE0);
} else {
qglDisable (GL_CLIP_PLANE0);
}
}
/*
================
RB_StageIteratorSky
All of the visible sky triangles are in tess
Other things could be stuck in here, like birds in the sky, etc
================
*/
void RB_StageIteratorSky( void ) {
int clearBits = 0;
if ( r_fastsky->integer ) {
if (r_fastsky->integer == 2 && !(backEnd.refdef.rdflags & RDF_NOWORLDMODEL)) {
clearBits |= GL_COLOR_BUFFER_BIT; // FIXME: only if sky shaders have been used
if (*r_fastSkyColor->string) {
int v, tr, tg, tb;
v = r_fastSkyColor->integer;
tr = (v & 0xff0000) / 0x010000;
tg = (v & 0x00ff00) / 0x000100;
tb = (v & 0x0000ff) / 0x000001;
qglClearColor((float)tr / 255.0, (float)tg / 255.0, (float)tb / 255.0, 1.0);
} else {
qglClearColor(0.0f, 0.0f, 0.0f, 1.0f); // FIXME: get color of sky
}
qglClear(clearBits);
}
return;
}
// go through all the polygons and project them onto
// the sky box to see which blocks on each side need
// to be drawn
RB_ClipSkyPolygons( &tess );
// r_showsky will let all the sky blocks be drawn in
// front of everything to allow developers to see how
// much sky is getting sucked in
if ( r_showsky->integer ) {
qglDepthRange( 0.0, 0.0 );
} else {
qglDepthRange( 1.0, 1.0 );
}
// draw the outer skybox
if ( tess.shader->sky.outerbox[0] && tess.shader->sky.outerbox[0] != tr.defaultImage ) {
qglColor3f( tr.identityLight, tr.identityLight, tr.identityLight );
qglPushMatrix ();
GL_State( 0 );
GL_Cull( CT_FRONT_SIDED );
qglTranslatef (backEnd.viewParms.or.origin[0], backEnd.viewParms.or.origin[1], backEnd.viewParms.or.origin[2]);
DrawSkyBox( tess.shader );
qglPopMatrix();
}
// generate the vertexes for all the clouds, which will be drawn
// by the generic shader routine
R_BuildCloudData( &tess );
if (tess.numVertexes) {
// yes, sky has cloud stages
RB_StageIteratorGeneric();
}
// draw the inner skybox
//FIXME not even done
// back to normal depth range
qglDepthRange( 0.0, 1.0 );
// note that sky was drawn so we will draw a sun later
backEnd.skyRenderedThisView = qtrue;
}
/*
==============
Z_Draw
==============
*/
void Z_Draw (void)
{
#ifdef DBG_WINDOWPOS
CheckWatchit ("Z_Draw");
#endif
brush_t *brush;
float w, h;
double start, end;
qtexture_t *q;
float top, bottom;
vec3_t org_top, org_bottom, dir_up, dir_down;
int xCam = z.width/3;
if (!active_brushes.next)
return; // not valid yet
if (z.timing)
start = Sys_DoubleTime ();
//
// clear
//
qglViewport(0, 0, z.width, z.height);
qglClearColor (
g_qeglobals.d_savedinfo.colors[COLOR_GRIDBACK][0],
g_qeglobals.d_savedinfo.colors[COLOR_GRIDBACK][1],
g_qeglobals.d_savedinfo.colors[COLOR_GRIDBACK][2],
0);
/* GL Bug */
/* When not using hw acceleration, gl will fault if we clear the depth
buffer bit on the first pass. The hack fix is to set the GL_DEPTH_BUFFER_BIT
only after Z_Draw() has been called once. Yeah, right. */
qglClear(glbitClear);
glbitClear |= GL_DEPTH_BUFFER_BIT;
qglMatrixMode(GL_PROJECTION);
qglLoadIdentity ();
w = z.width/2 / z.scale;
h = z.height/2 / z.scale;
qglOrtho (-w, w, z.origin[2]-h, z.origin[2]+h, -8, 8);
qglDisable(GL_TEXTURE_2D);
qglDisable(GL_TEXTURE_1D);
qglDisable(GL_DEPTH_TEST);
qglDisable(GL_BLEND);
//
// now draw the grid
//
Z_DrawGrid ();
//
// draw stuff
//
qglDisable(GL_CULL_FACE);
qglShadeModel (GL_FLAT);
qglPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
qglDisable(GL_TEXTURE_2D);
qglDisable(GL_BLEND);
qglDisable(GL_DEPTH_TEST);
// draw filled interiors and edges
dir_up[0] = 0 ; dir_up[1] = 0; dir_up[2] = 1;
dir_down[0] = 0 ; dir_down[1] = 0; dir_down[2] = -1;
VectorCopy (z.origin, org_top);
org_top[2] = g_MaxWorldCoord;
VectorCopy (z.origin, org_bottom);
org_bottom[2] = g_MinWorldCoord;
for (brush = active_brushes.next ; brush != &active_brushes ; brush=brush->next)
{
if (brush->bFiltered)
continue;
if (brush->mins[0] >= z.origin[0]
|| brush->maxs[0] <= z.origin[0]
|| brush->mins[1] >= z.origin[1]
|| brush->maxs[1] <= z.origin[1])
continue;
if (!Brush_Ray (org_top, dir_down, brush, &top))
continue;
top = org_top[2] - top;
if (!Brush_Ray (org_bottom, dir_up, brush, &bottom))
continue;
bottom = org_bottom[2] + bottom;
q = brush->brush_faces->pShader->getTexture();
qglColor3f (q->color[0], q->color[1], q->color[2]);
qglBegin (GL_QUADS);
qglVertex2f (-xCam, bottom);
qglVertex2f (xCam, bottom);
qglVertex2f (xCam, top);
qglVertex2f (-xCam, top);
qglEnd ();
qglColor3f (1,1,1);
qglBegin (GL_LINE_LOOP);
qglVertex2f (-xCam, bottom);
qglVertex2f (xCam, bottom);
qglVertex2f (xCam, top);
qglVertex2f (-xCam, top);
qglEnd ();
}
//
// now draw selected brushes
//
for (brush = selected_brushes.next ; brush != &selected_brushes ; brush=brush->next)
{
if ( !(brush->mins[0] >= z.origin[0]
|| brush->maxs[0] <= z.origin[0]
|| brush->mins[1] >= z.origin[1]
|| brush->maxs[1] <= z.origin[1]) )
{
if (Brush_Ray (org_top, dir_down, brush, &top))
{
top = org_top[2] - top;
if (Brush_Ray (org_bottom, dir_up, brush, &bottom))
{
bottom = org_bottom[2] + bottom;
q = brush->brush_faces->pShader->getTexture();
qglColor3f (q->color[0], q->color[1], q->color[2]);
qglBegin (GL_QUADS);
qglVertex2f (-xCam, bottom);
qglVertex2f (xCam, bottom);
qglVertex2f (xCam, top);
qglVertex2f (-xCam, top);
qglEnd ();
}
}
}
qglColor3fv(g_qeglobals.d_savedinfo.colors[COLOR_SELBRUSHES]);
qglBegin (GL_LINE_LOOP);
qglVertex2f (-xCam, brush->mins[2]);
qglVertex2f (xCam, brush->mins[2]);
qglVertex2f (xCam, brush->maxs[2]);
qglVertex2f (-xCam, brush->maxs[2]);
qglEnd ();
}
ZDrawCameraIcon ();
qglFinish();
QE_CheckOpenGLForErrors();
if (z.timing)
{
end = Sys_DoubleTime ();
Sys_Printf ("z: %i ms\n", (int)(1000*(end-start)));
}
}
/*
=============
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;
RB_RenderDrawSurfList( cmd->drawSurfs, cmd->numDrawSurfs );
// Dynamic Glow/Flares:
/*
The basic idea is to render the glowing parts of the scene to an offscreen buffer, then take
that buffer and blur it. After it is sufficiently blurred, re-apply that image back to
the normal screen using a additive blending. To blur the scene I use a vertex program to supply
four texture coordinate offsets that allow 'peeking' into adjacent pixels. In the register
combiner (pixel shader), I combine the adjacent pixels using a weighting factor. - Aurelio
*/
// Render dynamic glowing/flaring objects.
if ( !(backEnd.refdef.rdflags & RDF_NOWORLDMODEL) && g_bDynamicGlowSupported && r_DynamicGlow->integer )
{
// Copy the normal scene to texture.
qglDisable( GL_TEXTURE_2D );
qglEnable( GL_TEXTURE_RECTANGLE_EXT );
qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, tr.sceneImage );
qglCopyTexSubImage2D( GL_TEXTURE_RECTANGLE_EXT, 0, 0, 0, backEnd.viewParms.viewportX, backEnd.viewParms.viewportY, backEnd.viewParms.viewportWidth, backEnd.viewParms.viewportHeight);
qglDisable( GL_TEXTURE_RECTANGLE_EXT );
qglEnable( GL_TEXTURE_2D );
// Just clear colors, but leave the depth buffer intact so we can 'share' it.
qglClearColor( 0.0f, 0.0f, 0.0f, 0.0f );
qglClear( GL_COLOR_BUFFER_BIT );
// Render the glowing objects.
g_bRenderGlowingObjects = true;
RB_RenderDrawSurfList( cmd->drawSurfs, cmd->numDrawSurfs );
g_bRenderGlowingObjects = false;
qglFinish();
// Copy the glow scene to texture.
qglDisable( GL_TEXTURE_2D );
qglEnable( GL_TEXTURE_RECTANGLE_EXT );
qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, tr.screenGlow );
qglCopyTexSubImage2D( GL_TEXTURE_RECTANGLE_EXT, 0, 0, 0, backEnd.viewParms.viewportX, backEnd.viewParms.viewportY, backEnd.viewParms.viewportWidth, backEnd.viewParms.viewportHeight );
qglDisable( GL_TEXTURE_RECTANGLE_EXT );
qglEnable( GL_TEXTURE_2D );
// Resize the viewport to the blur texture size.
const int oldViewWidth = backEnd.viewParms.viewportWidth;
const int oldViewHeight = backEnd.viewParms.viewportHeight;
backEnd.viewParms.viewportWidth = r_DynamicGlowWidth->integer;
backEnd.viewParms.viewportHeight = r_DynamicGlowHeight->integer;
SetViewportAndScissor();
// Blur the scene.
RB_BlurGlowTexture();
// Copy the finished glow scene back to texture.
qglDisable( GL_TEXTURE_2D );
qglEnable( GL_TEXTURE_RECTANGLE_EXT );
qglBindTexture( GL_TEXTURE_RECTANGLE_EXT, tr.blurImage );
qglCopyTexSubImage2D( GL_TEXTURE_RECTANGLE_EXT, 0, 0, 0, 0, 0, backEnd.viewParms.viewportWidth, backEnd.viewParms.viewportHeight );
qglDisable( GL_TEXTURE_RECTANGLE_EXT );
qglEnable( GL_TEXTURE_2D );
// Set the viewport back to normal.
backEnd.viewParms.viewportWidth = oldViewWidth;
backEnd.viewParms.viewportHeight = oldViewHeight;
SetViewportAndScissor();
qglClear( GL_COLOR_BUFFER_BIT );
// Draw the glow additively over the screen.
RB_DrawGlowOverlay();
}
return (const void *)(cmd + 1);
}
/*
=============
RB_DrawBuffer
=============
*/
const void *RB_DrawBuffer( const void *data ) {
const drawBufferCommand_t *cmd;
cmd = (const drawBufferCommand_t *)data;
qglDrawBuffer( cmd->buffer );
// clear screen for debugging
if (!( backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) && tr.world && tr.refdef.rdflags & RDF_doLAGoggles)
{
const fog_t *fog = &tr.world->fogs[tr.world->numfogs];
qglClearColor(fog->parms.color[0], fog->parms.color[1], fog->parms.color[2], 1.0f );
qglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
}
else if (!( backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) && tr.world && tr.world->globalFog != -1 && tr.sceneCount)//don't clear during menus, wait for real scene
{
const fog_t *fog = &tr.world->fogs[tr.world->globalFog];
qglClearColor(fog->parms.color[0], fog->parms.color[1], fog->parms.color[2], 1.0f );
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
}
else if ( r_clear->integer )
{ // clear screen for debugging
int i = r_clear->integer;
if (i == 42) {
i = Q_irand(0,8);
}
switch (i)
{
default:
qglClearColor( 1, 0, 0.5, 1 );
break;
case 1:
qglClearColor( 1.0, 0.0, 0.0, 1.0); //red
break;
case 2:
qglClearColor( 0.0, 1.0, 0.0, 1.0); //green
break;
case 3:
qglClearColor( 1.0, 1.0, 0.0, 1.0); //yellow
break;
case 4:
qglClearColor( 0.0, 0.0, 1.0, 1.0); //blue
break;
case 5:
qglClearColor( 0.0, 1.0, 1.0, 1.0); //cyan
break;
case 6:
qglClearColor( 1.0, 0.0, 1.0, 1.0); //magenta
break;
case 7:
qglClearColor( 1.0, 1.0, 1.0, 1.0); //white
break;
case 8:
qglClearColor( 0.0, 0.0, 0.0, 1.0); //black
break;
}
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
}
return (const void *)(cmd + 1);
}
/*
====================
RE_BeginFrame
If running in stereo, RE_BeginFrame will be called twice
for each RE_EndFrame
====================
*/
void RE_BeginFrame(stereoFrame_t stereoFrame)
{
drawBufferCommand_t *cmd = NULL;
colorMaskCommand_t *colcmd = NULL;
if (!tr.registered)
{
return;
}
glState.finishCalled = qfalse;
tr.frameCount++;
tr.frameSceneNum = 0;
//
// do overdraw measurement
//
if (r_measureOverdraw->integer)
{
if (glConfig.stencilBits < 4)
{
ri.Printf(PRINT_ALL, "Warning: not enough stencil bits to measure overdraw: %d\n", glConfig.stencilBits);
ri.Cvar_Set("r_measureOverdraw", "0");
r_measureOverdraw->modified = qfalse;
}
else if (r_shadows->integer == 2)
{
ri.Printf(PRINT_ALL, "Warning: stencil shadows and overdraw measurement are mutually exclusive\n");
ri.Cvar_Set("r_measureOverdraw", "0");
r_measureOverdraw->modified = qfalse;
}
else
{
R_IssuePendingRenderCommands();
qglEnable(GL_STENCIL_TEST);
qglStencilMask(~0U);
qglClearStencil(0U);
qglStencilFunc(GL_ALWAYS, 0U, ~0U);
qglStencilOp(GL_KEEP, GL_INCR, GL_INCR);
}
r_measureOverdraw->modified = qfalse;
}
else
{
// this is only reached if it was on and is now off
if (r_measureOverdraw->modified)
{
R_IssuePendingRenderCommands();
qglDisable(GL_STENCIL_TEST);
}
r_measureOverdraw->modified = qfalse;
}
//
// texturemode stuff
//
if (r_textureMode->modified)
{
R_IssuePendingRenderCommands();
GL_TextureMode(r_textureMode->string);
r_textureMode->modified = qfalse;
}
//
// NVidia stuff
//
// fog control
if (glConfig.NVFogAvailable && r_nv_fogdist_mode->modified)
{
r_nv_fogdist_mode->modified = qfalse;
if (!Q_stricmp(r_nv_fogdist_mode->string, "GL_EYE_PLANE_ABSOLUTE_NV"))
{
glConfig.NVFogMode = (int)GL_EYE_PLANE_ABSOLUTE_NV;
}
else if (!Q_stricmp(r_nv_fogdist_mode->string, "GL_EYE_PLANE"))
{
glConfig.NVFogMode = (int)GL_EYE_PLANE;
}
else if (!Q_stricmp(r_nv_fogdist_mode->string, "GL_EYE_RADIAL_NV"))
{
glConfig.NVFogMode = (int)GL_EYE_RADIAL_NV;
}
else
{
// in case this was really 'else', store a valid value for next time
glConfig.NVFogMode = (int)GL_EYE_RADIAL_NV;
ri.Cvar_Set("r_nv_fogdist_mode", "GL_EYE_RADIAL_NV");
}
}
//
// gamma stuff
//
if (r_gamma->modified)
{
r_gamma->modified = qfalse;
R_IssuePendingRenderCommands();
R_SetColorMappings();
}
// check for errors
if (!r_ignoreGLErrors->integer)
{
int err;
R_IssuePendingRenderCommands();
if ((err = qglGetError()) != GL_NO_ERROR)
{
ri.Error(ERR_FATAL, "RE_BeginFrame() - glGetError() failed (0x%x)!", err);
}
}
if (glConfig.stereoEnabled)
{
if (!(cmd = R_GetCommandBuffer(sizeof(*cmd))))
{
return;
}
cmd->commandId = RC_DRAW_BUFFER;
if (stereoFrame == STEREO_LEFT)
{
cmd->buffer = (int)GL_BACK_LEFT;
}
else if (stereoFrame == STEREO_RIGHT)
{
cmd->buffer = (int)GL_BACK_RIGHT;
}
else
{
ri.Error(ERR_FATAL, "RE_BeginFrame: Stereo is enabled, but stereoFrame was %i", stereoFrame);
}
}
else
{
if (r_anaglyphMode->integer)
{
if (r_anaglyphMode->modified)
{
// clear both, front and backbuffer.
qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
backEnd.colorMask[0] = GL_FALSE;
backEnd.colorMask[1] = GL_FALSE;
backEnd.colorMask[2] = GL_FALSE;
backEnd.colorMask[3] = GL_FALSE;
qglClearColor(0.0f, 0.0f, 0.0f, 1.0f);
if (glRefConfig.framebufferObject)
{
// clear all framebuffers
if (tr.msaaResolveFbo)
{
FBO_Bind(tr.msaaResolveFbo);
qglClear(GL_COLOR_BUFFER_BIT);
}
if (tr.renderFbo)
{
FBO_Bind(tr.renderFbo);
qglClear(GL_COLOR_BUFFER_BIT);
}
if (tr.screenScratchFbo)
{
FBO_Bind(tr.screenScratchFbo);
qglClear(GL_COLOR_BUFFER_BIT);
}
FBO_Bind(NULL);
}
qglDrawBuffer(GL_FRONT);
qglClear(GL_COLOR_BUFFER_BIT);
qglDrawBuffer(GL_BACK);
qglClear(GL_COLOR_BUFFER_BIT);
r_anaglyphMode->modified = qfalse;
}
if (stereoFrame == STEREO_LEFT)
{
if (!(cmd = R_GetCommandBuffer(sizeof(*cmd))))
{
return;
}
if (!(colcmd = R_GetCommandBuffer(sizeof(*colcmd))))
{
return;
}
}
else if (stereoFrame == STEREO_RIGHT)
{
clearDepthCommand_t *cldcmd;
if (!(cldcmd = R_GetCommandBuffer(sizeof(*cldcmd))))
{
return;
}
cldcmd->commandId = RC_CLEARDEPTH;
if (!(colcmd = R_GetCommandBuffer(sizeof(*colcmd))))
{
return;
}
}
else
{
ri.Error(ERR_FATAL, "RE_BeginFrame: Stereo is enabled, but stereoFrame was %i", stereoFrame);
}
R_SetColorMode(colcmd->rgba, stereoFrame, r_anaglyphMode->integer);
colcmd->commandId = RC_COLORMASK;
}
else
{
if (stereoFrame != STEREO_CENTER)
{
ri.Error(ERR_FATAL, "RE_BeginFrame: Stereo is disabled, but stereoFrame was %i", stereoFrame);
}
if (!(cmd = R_GetCommandBuffer(sizeof(*cmd))))
{
return;
}
}
if (cmd)
{
cmd->commandId = RC_DRAW_BUFFER;
if (r_anaglyphMode->modified)
{
qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
backEnd.colorMask[0] = 0;
backEnd.colorMask[1] = 0;
backEnd.colorMask[2] = 0;
backEnd.colorMask[3] = 0;
r_anaglyphMode->modified = qfalse;
}
if (!Q_stricmp(r_drawBuffer->string, "GL_FRONT"))
{
cmd->buffer = (int)GL_FRONT;
}
else
{
cmd->buffer = (int)GL_BACK;
}
}
}
tr.refdef.stereoFrame = stereoFrame;
}
/*
===============
RB_ShowImages
Draw all the images to the screen, on top of whatever
was there. This is used to test for texture thrashing.
Also called by RE_EndRegistration
===============
*/
void RB_ShowImages( void ) {
int i;
image_t *image;
float x, y, w, h;
int start, end;
if ( !backEnd.projection2D ) {
RB_SetGL2D();
}
qglClear( GL_COLOR_BUFFER_BIT );
qglFinish();
start = ri.Milliseconds();
for ( i = 0 ; i < tr.numImages ; i++ ) {
image = tr.images[i];
w = glConfig.vidWidth / 40;
h = glConfig.vidHeight / 30;
x = i % 40 * w;
y = i / 30 * h;
// show in proportional size in mode 2
if ( r_showImages->integer == 2 ) {
w *= image->uploadWidth / 512.0f;
h *= image->uploadHeight / 512.0f;
}
#ifdef USE_OPENGLES
GLfloat tex[] = {
0, 0,
1, 0,
1, 1,
0, 1 };
GLfloat vtx[] = {
x, y,
x + w, y,
x + w, y + h,
x, y + h };
GLboolean text = qglIsEnabled(GL_TEXTURE_COORD_ARRAY);
GLboolean glcol = qglIsEnabled(GL_COLOR_ARRAY);
if (glcol)
qglDisableClientState(GL_COLOR_ARRAY);
if (!text)
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
qglTexCoordPointer( 2, GL_FLOAT, 0, tex );
qglVertexPointer ( 2, GL_FLOAT, 0, vtx );
qglDrawArrays( GL_TRIANGLE_FAN, 0, 4 );
if (glcol)
qglEnableClientState(GL_COLOR_ARRAY);
if (!text)
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
#else
GL_Bind( image );
qglBegin( GL_QUADS );
qglTexCoord2f( 0, 0 );
qglVertex2f( x, y );
qglTexCoord2f( 1, 0 );
qglVertex2f( x + w, y );
qglTexCoord2f( 1, 1 );
qglVertex2f( x + w, y + h );
qglTexCoord2f( 0, 1 );
qglVertex2f( x, y + h );
qglEnd();
#endif
}
qglFinish();
end = ri.Milliseconds();
ri.Printf( PRINT_ALL, "%i msec to draw all images\n", end - start );
}
/*
=================
RB_BeginDrawingView
Any mirrored or portaled views have already been drawn, so prepare
to actually render the visible surfaces for this view
=================
*/
void RB_BeginDrawingView (void) {
int clearBits = 0;
// sync with gl if needed
if ( r_finish->integer == 1 && !glState.finishCalled ) {
qglFinish ();
glState.finishCalled = qtrue;
}
if ( r_finish->integer == 0 ) {
glState.finishCalled = qtrue;
}
// we will need to change the projection matrix before drawing
// 2D images again
backEnd.projection2D = qfalse;
if (glRefConfig.framebufferObject)
{
FBO_t *fbo = backEnd.viewParms.targetFbo;
// FIXME: HUGE HACK: render to the screen fbo if we've already postprocessed the frame and aren't drawing more world
// drawing more world check is in case of double renders, such as skyportals
if (fbo == NULL && !(backEnd.framePostProcessed && (backEnd.refdef.rdflags & RDF_NOWORLDMODEL)))
fbo = tr.renderFbo;
if (tr.renderCubeFbo && fbo == tr.renderCubeFbo)
{
cubemap_t *cubemap = &tr.cubemaps[backEnd.viewParms.targetFboCubemapIndex];
FBO_AttachImage(fbo, cubemap->image, GL_COLOR_ATTACHMENT0_EXT, backEnd.viewParms.targetFboLayer);
}
FBO_Bind(fbo);
}
//
// set the modelview matrix for the viewer
//
SetViewportAndScissor();
// ensures that depth writes are enabled for the depth clear
GL_State( GLS_DEFAULT );
// clear relevant buffers
clearBits = GL_DEPTH_BUFFER_BIT;
if ( r_measureOverdraw->integer || r_shadows->integer == 2 )
{
clearBits |= GL_STENCIL_BUFFER_BIT;
}
if ( r_fastsky->integer && !( backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) )
{
clearBits |= GL_COLOR_BUFFER_BIT; // FIXME: only if sky shaders have been used
}
// clear to black for cube maps
if (tr.renderCubeFbo && backEnd.viewParms.targetFbo == tr.renderCubeFbo)
{
clearBits |= GL_COLOR_BUFFER_BIT;
}
qglClear( clearBits );
if ( ( backEnd.refdef.rdflags & RDF_HYPERSPACE ) )
{
RB_Hyperspace();
return;
}
else
{
backEnd.isHyperspace = qfalse;
}
// we will only draw a sun if there was sky rendered in this view
backEnd.skyRenderedThisView = qfalse;
// clip to the plane of the portal
if ( backEnd.viewParms.isPortal ) {
#if 0
float plane[4];
GLdouble plane2[4];
plane[0] = backEnd.viewParms.portalPlane.normal[0];
plane[1] = backEnd.viewParms.portalPlane.normal[1];
plane[2] = backEnd.viewParms.portalPlane.normal[2];
plane[3] = backEnd.viewParms.portalPlane.dist;
plane2[0] = DotProduct (backEnd.viewParms.or.axis[0], plane);
plane2[1] = DotProduct (backEnd.viewParms.or.axis[1], plane);
plane2[2] = DotProduct (backEnd.viewParms.or.axis[2], plane);
plane2[3] = DotProduct (plane, backEnd.viewParms.or.origin) - plane[3];
#endif
GL_SetModelviewMatrix( s_flipMatrix );
}
}
/*
==================
GL_Setup3D
TODO: time is messed up
==================
*/
void GL_Setup3D (int time){
double clipPlane[4];
QGL_LogPrintf("---------- RB_Setup3D ----------\n");
backEnd.projection2D = false;
backEnd.time = time;
backEnd.floatTime = MS2SEC(Sys_Milliseconds());
backEnd.viewport.x = backEnd.viewParms.viewport.x;
backEnd.viewport.y = backEnd.viewParms.viewport.y;
backEnd.viewport.width = backEnd.viewParms.viewport.width;
backEnd.viewport.height = backEnd.viewParms.viewport.height;
backEnd.scissor.x = backEnd.viewParms.scissor.x;
backEnd.scissor.y = backEnd.viewParms.scissor.y;
backEnd.scissor.width = backEnd.viewParms.scissor.width;
backEnd.scissor.height = backEnd.viewParms.scissor.height;
backEnd.coordScale[0] = 1.0f / backEnd.viewport.width;
backEnd.coordScale[1] = 1.0f / backEnd.viewport.height;
backEnd.coordBias[0] = -backEnd.viewport.x * backEnd.coordScale[0];
backEnd.coordBias[1] = -backEnd.viewport.y * backEnd.coordScale[1];
backEnd.depthFilling = false;
backEnd.debugRendering = false;
backEnd.currentColorCaptured = SORT_BAD;
backEnd.currentDepthCaptured = false;
// Set up the viewport
GL_Viewport(backEnd.viewport);
// Set up the scissor
GL_Scissor(backEnd.viewport);
// Set up the depth bounds
if (glConfig.depthBoundsTestAvailable)
GL_DepthBounds(0.0f, 1.0f);
// Set the projection matrix
GL_LoadMatrix(GL_PROJECTION, backEnd.viewParms.projectionMatrix);
// Set the modelview matrix
GL_LoadIdentity(GL_MODELVIEW);
// Set the GL state
GL_PolygonMode(GL_FILL);
GL_Disable(GL_CULL_FACE);
GL_Disable(GL_POLYGON_OFFSET_FILL);
GL_Disable(GL_BLEND);
GL_Disable(GL_ALPHA_TEST);
GL_Disable(GL_DEPTH_TEST);
GL_Disable(GL_STENCIL_TEST);
GL_DepthRange(0.0f, 1.0f);
GL_ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
GL_DepthMask(GL_TRUE);
GL_StencilMask(255);
// Enable the clip plane if needed
if (backEnd.viewParms.viewType != VIEW_MIRROR)
qglDisable(GL_CLIP_PLANE0);
else {
clipPlane[0] = -DotProduct(backEnd.viewParms.axis[1], backEnd.viewParms.clipPlane.normal);
clipPlane[1] = DotProduct(backEnd.viewParms.axis[2], backEnd.viewParms.clipPlane.normal);
clipPlane[2] = -DotProduct(backEnd.viewParms.axis[0], backEnd.viewParms.clipPlane.normal);
clipPlane[3] = DotProduct(backEnd.viewParms.origin, backEnd.viewParms.clipPlane.normal) - backEnd.viewParms.clipPlane.dist;
qglEnable(GL_CLIP_PLANE0);
qglClipPlane(GL_CLIP_PLANE0, clipPlane);
}
// Enable multisampling if available
if (glConfig.multiSamples > 1)
qglEnable(GL_MULTISAMPLE);
// Clear the buffers
qglClearColor(0.0f, 0.0f, 0.0f, 1.0f);
qglClearDepth(1.0f);
qglClearStencil(0);
if (backEnd.viewParms.primaryView)
qglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
else
qglClear(GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
// Check for errors
if (!r_ignoreGLErrors->integerValue)
GL_CheckForErrors();
QGL_LogPrintf("--------------------\n");
}
/*
===============
GLimp_SetMode
===============
*/
static int GLimp_SetMode(int mode, qboolean fullscreen, qboolean noborder)
{
const char *glstring;
int perChannelColorBits;
int colorBits, depthBits, stencilBits;
int samples;
int i = 0;
SDL_Surface *icon = NULL;
Uint32 flags = SDL_WINDOW_SHOWN | SDL_WINDOW_OPENGL;
SDL_DisplayMode desktopMode;
int display = 0;
int x = SDL_WINDOWPOS_UNDEFINED, y = SDL_WINDOWPOS_UNDEFINED;
ri.Printf( PRINT_ALL, "Initializing OpenGL display\n");
if ( r_allowResize->integer )
flags |= SDL_WINDOW_RESIZABLE;
#ifdef USE_ICON
icon = SDL_CreateRGBSurfaceFrom(
(void *)CLIENT_WINDOW_ICON.pixel_data,
CLIENT_WINDOW_ICON.width,
CLIENT_WINDOW_ICON.height,
CLIENT_WINDOW_ICON.bytes_per_pixel * 8,
CLIENT_WINDOW_ICON.bytes_per_pixel * CLIENT_WINDOW_ICON.width,
#ifdef Q3_LITTLE_ENDIAN
0x000000FF, 0x0000FF00, 0x00FF0000, 0xFF000000
#else
0xFF000000, 0x00FF0000, 0x0000FF00, 0x000000FF
#endif
);
#endif
// If a window exists, note its display index
if( SDL_window != NULL )
display = SDL_GetWindowDisplayIndex( SDL_window );
if( SDL_GetDesktopDisplayMode( display, &desktopMode ) == 0 )
{
displayAspect = (float)desktopMode.w / (float)desktopMode.h;
ri.Printf( PRINT_ALL, "Display aspect: %.3f\n", displayAspect );
}
else
{
Com_Memset( &desktopMode, 0, sizeof( SDL_DisplayMode ) );
ri.Printf( PRINT_ALL,
"Cannot determine display aspect, assuming 1.333\n" );
}
ri.Printf (PRINT_ALL, "...setting mode %d:", mode );
if (mode == -2)
{
// use desktop video resolution
if( desktopMode.h > 0 )
{
glConfig.vidWidth = desktopMode.w;
glConfig.vidHeight = desktopMode.h;
}
else
{
glConfig.vidWidth = 640;
glConfig.vidHeight = 480;
ri.Printf( PRINT_ALL,
"Cannot determine display resolution, assuming 640x480\n" );
}
glConfig.windowAspect = (float)glConfig.vidWidth / (float)glConfig.vidHeight;
}
else if ( !R_GetModeInfo( &glConfig.vidWidth, &glConfig.vidHeight, &glConfig.windowAspect, mode ) )
{
ri.Printf( PRINT_ALL, " invalid mode\n" );
return RSERR_INVALID_MODE;
}
ri.Printf( PRINT_ALL, " %d %d\n", glConfig.vidWidth, glConfig.vidHeight);
// Center window
if( r_centerWindow->integer && !fullscreen )
{
x = ( desktopMode.w / 2 ) - ( glConfig.vidWidth / 2 );
y = ( desktopMode.h / 2 ) - ( glConfig.vidHeight / 2 );
}
// Destroy existing state if it exists
if( SDL_glContext != NULL )
{
SDL_GL_DeleteContext( SDL_glContext );
SDL_glContext = NULL;
}
if( SDL_window != NULL )
{
SDL_GetWindowPosition( SDL_window, &x, &y );
ri.Printf( PRINT_DEVELOPER, "Existing window at %dx%d before being destroyed\n", x, y );
SDL_DestroyWindow( SDL_window );
SDL_window = NULL;
}
if( fullscreen )
{
flags |= SDL_WINDOW_FULLSCREEN;
glConfig.isFullscreen = qtrue;
}
else
{
if( noborder )
flags |= SDL_WINDOW_BORDERLESS;
glConfig.isFullscreen = qfalse;
}
colorBits = r_colorbits->value;
if ((!colorBits) || (colorBits >= 32))
colorBits = 24;
if (!r_depthbits->value)
depthBits = 24;
else
depthBits = r_depthbits->value;
stencilBits = r_stencilbits->value;
samples = r_ext_multisample->value;
for (i = 0; i < 16; i++)
{
int testColorBits, testDepthBits, testStencilBits;
// 0 - default
// 1 - minus colorBits
// 2 - minus depthBits
// 3 - minus stencil
if ((i % 4) == 0 && i)
{
// one pass, reduce
switch (i / 4)
{
case 2 :
if (colorBits == 24)
colorBits = 16;
break;
case 1 :
if (depthBits == 24)
depthBits = 16;
else if (depthBits == 16)
depthBits = 8;
case 3 :
if (stencilBits == 24)
stencilBits = 16;
else if (stencilBits == 16)
stencilBits = 8;
}
}
testColorBits = colorBits;
testDepthBits = depthBits;
testStencilBits = stencilBits;
if ((i % 4) == 3)
{ // reduce colorBits
if (testColorBits == 24)
testColorBits = 16;
}
if ((i % 4) == 2)
{ // reduce depthBits
if (testDepthBits == 24)
testDepthBits = 16;
else if (testDepthBits == 16)
testDepthBits = 8;
}
if ((i % 4) == 1)
{ // reduce stencilBits
if (testStencilBits == 24)
testStencilBits = 16;
else if (testStencilBits == 16)
testStencilBits = 8;
else
testStencilBits = 0;
}
if (testColorBits == 24)
perChannelColorBits = 8;
else
perChannelColorBits = 4;
#ifdef __sgi /* Fix for SGIs grabbing too many bits of color */
if (perChannelColorBits == 4)
perChannelColorBits = 0; /* Use minimum size for 16-bit color */
/* Need alpha or else SGIs choose 36+ bit RGB mode */
SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, 1);
#endif
SDL_GL_SetAttribute( SDL_GL_RED_SIZE, perChannelColorBits );
SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, perChannelColorBits );
SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, perChannelColorBits );
SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, testDepthBits );
SDL_GL_SetAttribute( SDL_GL_STENCIL_SIZE, testStencilBits );
SDL_GL_SetAttribute( SDL_GL_MULTISAMPLEBUFFERS, samples ? 1 : 0 );
SDL_GL_SetAttribute( SDL_GL_MULTISAMPLESAMPLES, samples );
if(r_stereoEnabled->integer)
{
glConfig.stereoEnabled = qtrue;
SDL_GL_SetAttribute(SDL_GL_STEREO, 1);
}
else
{
glConfig.stereoEnabled = qfalse;
SDL_GL_SetAttribute(SDL_GL_STEREO, 0);
}
SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
#if 0 // if multisampling is enabled on X11, this causes create window to fail.
// If not allowing software GL, demand accelerated
if( !r_allowSoftwareGL->integer )
SDL_GL_SetAttribute( SDL_GL_ACCELERATED_VISUAL, 1 );
#endif
if( ( SDL_window = SDL_CreateWindow( CLIENT_WINDOW_TITLE, x, y,
glConfig.vidWidth, glConfig.vidHeight, flags ) ) == 0 )
{
ri.Printf( PRINT_DEVELOPER, "SDL_CreateWindow failed: %s\n", SDL_GetError( ) );
continue;
}
if( fullscreen )
{
SDL_DisplayMode mode;
switch( testColorBits )
{
case 16: mode.format = SDL_PIXELFORMAT_RGB565; break;
case 24: mode.format = SDL_PIXELFORMAT_RGB24; break;
default: ri.Printf( PRINT_DEVELOPER, "testColorBits is %d, can't fullscreen\n", testColorBits ); continue;
}
mode.w = glConfig.vidWidth;
mode.h = glConfig.vidHeight;
mode.refresh_rate = glConfig.displayFrequency = ri.Cvar_VariableIntegerValue( "r_displayRefresh" );
mode.driverdata = NULL;
if( SDL_SetWindowDisplayMode( SDL_window, &mode ) < 0 )
{
ri.Printf( PRINT_DEVELOPER, "SDL_SetWindowDisplayMode failed: %s\n", SDL_GetError( ) );
continue;
}
}
SDL_SetWindowIcon( SDL_window, icon );
if( ( SDL_glContext = SDL_GL_CreateContext( SDL_window ) ) == NULL )
{
ri.Printf( PRINT_DEVELOPER, "SDL_GL_CreateContext failed: %s\n", SDL_GetError( ) );
continue;
}
qglClearColor( 0, 0, 0, 1 );
qglClear( GL_COLOR_BUFFER_BIT );
SDL_GL_SwapWindow( SDL_window );
SDL_GL_SetSwapInterval( r_swapInterval->integer );
glConfig.colorBits = testColorBits;
glConfig.depthBits = testDepthBits;
glConfig.stencilBits = testStencilBits;
ri.Printf( PRINT_ALL, "Using %d color bits, %d depth, %d stencil display.\n",
glConfig.colorBits, glConfig.depthBits, glConfig.stencilBits );
break;
}
SDL_FreeSurface( icon );
if( !SDL_window )
{
ri.Printf( PRINT_ALL, "Couldn't get a visual\n" );
return RSERR_INVALID_MODE;
}
GLimp_DetectAvailableModes();
glstring = (char *) qglGetString (GL_RENDERER);
ri.Printf( PRINT_ALL, "GL_RENDERER: %s\n", glstring );
return RSERR_OK;
}
/*
=================
RB_BeginDrawingView
Any mirrored or portaled views have already been drawn, so prepare
to actually render the visible surfaces for this view
=================
*/
void RB_BeginDrawingView (void) {
int clearBits = 0;
// sync with gl if needed
if ( r_finish->integer == 1 && !glState.finishCalled ) {
qglFinish ();
glState.finishCalled = qtrue;
}
if ( r_finish->integer == 0 ) {
glState.finishCalled = qtrue;
}
// we will need to change the projection matrix before drawing
// 2D images again
backEnd.projection2D = qfalse;
if (glRefConfig.framebufferObject)
{
// FIXME: HUGE HACK: render to the screen fbo if we've already postprocessed the frame and aren't drawing more world
// drawing more world check is in case of double renders, such as skyportals
if (backEnd.viewParms.targetFbo == NULL)
{
if (!tr.renderFbo || (backEnd.framePostProcessed && (backEnd.refdef.rdflags & RDF_NOWORLDMODEL)))
{
FBO_Bind(NULL);
}
else
{
FBO_Bind(tr.renderFbo);
}
}
else
{
FBO_Bind(backEnd.viewParms.targetFbo);
// FIXME: hack for cubemap testing
if (tr.renderCubeFbo && backEnd.viewParms.targetFbo == tr.renderCubeFbo)
{
//qglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_CUBE_MAP_POSITIVE_X + backEnd.viewParms.targetFboLayer, backEnd.viewParms.targetFbo->colorImage[0]->texnum, 0);
qglFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_CUBE_MAP_POSITIVE_X + backEnd.viewParms.targetFboLayer, tr.cubemaps[backEnd.viewParms.targetFboCubemapIndex]->texnum, 0);
}
}
}
//
// set the modelview matrix for the viewer
//
SetViewportAndScissor();
// ensures that depth writes are enabled for the depth clear
GL_State( GLS_DEFAULT );
// clear relevant buffers
clearBits = GL_DEPTH_BUFFER_BIT;
if ( r_measureOverdraw->integer || r_shadows->integer == 2 )
{
clearBits |= GL_STENCIL_BUFFER_BIT;
}
if ( r_fastsky->integer && !( backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) )
{
clearBits |= GL_COLOR_BUFFER_BIT; // FIXME: only if sky shaders have been used
#ifdef _DEBUG
qglClearColor( 0.8f, 0.7f, 0.4f, 1.0f ); // FIXME: get color of sky
#else
qglClearColor( 0.0f, 0.0f, 0.0f, 1.0f ); // FIXME: get color of sky
#endif
}
// clear to white for shadow maps
if (backEnd.viewParms.flags & VPF_SHADOWMAP)
{
clearBits |= GL_COLOR_BUFFER_BIT;
qglClearColor( 1.0f, 1.0f, 1.0f, 1.0f );
}
// clear to black for cube maps
if (tr.renderCubeFbo && backEnd.viewParms.targetFbo == tr.renderCubeFbo)
{
clearBits |= GL_COLOR_BUFFER_BIT;
qglClearColor( 0.0f, 0.0f, 0.0f, 1.0f );
}
qglClear( clearBits );
if ( ( backEnd.refdef.rdflags & RDF_HYPERSPACE ) )
{
RB_Hyperspace();
return;
}
else
{
backEnd.isHyperspace = qfalse;
}
glState.faceCulling = -1; // force face culling to set next time
// we will only draw a sun if there was sky rendered in this view
backEnd.skyRenderedThisView = qfalse;
// clip to the plane of the portal
if ( backEnd.viewParms.isPortal ) {
#if 0
float plane[4];
double plane2[4];
plane[0] = backEnd.viewParms.portalPlane.normal[0];
plane[1] = backEnd.viewParms.portalPlane.normal[1];
plane[2] = backEnd.viewParms.portalPlane.normal[2];
plane[3] = backEnd.viewParms.portalPlane.dist;
plane2[0] = DotProduct (backEnd.viewParms.or.axis[0], plane);
plane2[1] = DotProduct (backEnd.viewParms.or.axis[1], plane);
plane2[2] = DotProduct (backEnd.viewParms.or.axis[2], plane);
plane2[3] = DotProduct (plane, backEnd.viewParms.or.origin) - plane[3];
#endif
GL_SetModelviewMatrix( s_flipMatrix );
}
}
/*
=================
RB_BeginDrawingView
Any mirrored or portaled views have already been drawn, so prepare
to actually render the visible surfaces for this view
=================
*/
static void RB_BeginDrawingView (void) {
int clearBits = GL_DEPTH_BUFFER_BIT;
// sync with gl if needed
if ( r_finish->integer == 1 && !glState.finishCalled ) {
qglFinish ();
glState.finishCalled = qtrue;
}
if ( r_finish->integer == 0 ) {
glState.finishCalled = qtrue;
}
// we will need to change the projection matrix before drawing
// 2D images again
backEnd.projection2D = qfalse;
//
// set the modelview matrix for the viewer
//
SetViewportAndScissor();
// ensures that depth writes are enabled for the depth clear
GL_State( GLS_DEFAULT );
// clear relevant buffers
if ( r_measureOverdraw->integer || r_shadows->integer == 2 || tr_stencilled )
{
clearBits |= GL_STENCIL_BUFFER_BIT;
tr_stencilled = false;
}
if (skyboxportal)
{
if ( backEnd.refdef.rdflags & RDF_SKYBOXPORTAL )
{ // portal scene, clear whatever is necessary
if (r_fastsky->integer || (backEnd.refdef.rdflags & RDF_NOWORLDMODEL) )
{ // fastsky: clear color
// try clearing first with the portal sky fog color, then the world fog color, then finally a default
clearBits |= GL_COLOR_BUFFER_BIT;
if (tr.world && tr.world->globalFog != -1)
{
const fog_t *fog = &tr.world->fogs[tr.world->globalFog];
qglClearColor(fog->parms.color[0], fog->parms.color[1], fog->parms.color[2], 1.0f );
}
else
{
qglClearColor ( 0.3f, 0.3f, 0.3f, 1.0 );
}
}
}
}
else
{
if ( r_fastsky->integer && !( backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) && !g_bRenderGlowingObjects )
{
if (tr.world && tr.world->globalFog != -1)
{
const fog_t *fog = &tr.world->fogs[tr.world->globalFog];
qglClearColor(fog->parms.color[0], fog->parms.color[1], fog->parms.color[2], 1.0f );
}
else
{
qglClearColor( 0.3f, 0.3f, 0.3f, 1 ); // FIXME: get color of sky
}
clearBits |= GL_COLOR_BUFFER_BIT; // FIXME: only if sky shaders have been used
}
}
if ( !( backEnd.refdef.rdflags & RDF_NOWORLDMODEL ) && ( r_DynamicGlow->integer && !g_bRenderGlowingObjects ) )
{
if (tr.world && tr.world->globalFog != -1)
{ //this is because of a bug in multiple scenes I think, it needs to clear for the second scene but it doesn't normally.
const fog_t *fog = &tr.world->fogs[tr.world->globalFog];
qglClearColor(fog->parms.color[0], fog->parms.color[1], fog->parms.color[2], 1.0f );
clearBits |= GL_COLOR_BUFFER_BIT;
}
}
// If this pass is to just render the glowing objects, don't clear the depth buffer since
// we're sharing it with the main scene (since the main scene has already been rendered). -AReis
if ( g_bRenderGlowingObjects )
{
clearBits &= ~GL_DEPTH_BUFFER_BIT;
}
if (clearBits)
{
qglClear( clearBits );
}
if ( ( backEnd.refdef.rdflags & RDF_HYPERSPACE ) )
{
RB_Hyperspace();
return;
}
else
{
backEnd.isHyperspace = qfalse;
}
glState.faceCulling = -1; // force face culling to set next time
// we will only draw a sun if there was sky rendered in this view
backEnd.skyRenderedThisView = qfalse;
// clip to the plane of the portal
if ( backEnd.viewParms.isPortal ) {
float plane[4];
double plane2[4];
plane[0] = backEnd.viewParms.portalPlane.normal[0];
plane[1] = backEnd.viewParms.portalPlane.normal[1];
plane[2] = backEnd.viewParms.portalPlane.normal[2];
plane[3] = backEnd.viewParms.portalPlane.dist;
plane2[0] = DotProduct (backEnd.viewParms.ori.axis[0], plane);
plane2[1] = DotProduct (backEnd.viewParms.ori.axis[1], plane);
plane2[2] = DotProduct (backEnd.viewParms.ori.axis[2], plane);
plane2[3] = DotProduct (plane, backEnd.viewParms.ori.origin) - plane[3];
qglLoadMatrixf( s_flipMatrix );
qglClipPlane (GL_CLIP_PLANE0, plane2);
qglEnable (GL_CLIP_PLANE0);
} else {
qglDisable (GL_CLIP_PLANE0);
}
}
/*
====================
RE_BeginFrame
If running in stereo, RE_BeginFrame will be called twice
for each RE_EndFrame
====================
*/
void RE_BeginFrame( stereoFrame_t stereoFrame ) {
drawBufferCommand_t *cmd = NULL;
colorMaskCommand_t *colcmd = NULL;
if ( !tr.registered ) {
return;
}
glState.finishCalled = qfalse;
tr.frameCount++;
tr.frameSceneNum = 0;
//
// do overdraw measurement
//
if ( r_measureOverdraw->integer ) {
if ( glConfig.stencilBits < 4 ) {
ri.Printf( PRINT_ALL, "Warning: not enough stencil bits to measure overdraw: %d\n", glConfig.stencilBits );
ri.Cvar_Set( "r_measureOverdraw", "0" );
r_measureOverdraw->modified = qfalse;
} else if ( r_shadows->integer == 2 ) {
ri.Printf( PRINT_ALL, "Warning: stencil shadows and overdraw measurement are mutually exclusive\n" );
ri.Cvar_Set( "r_measureOverdraw", "0" );
r_measureOverdraw->modified = qfalse;
} else
{
R_IssuePendingRenderCommands();
qglEnable( GL_STENCIL_TEST );
qglStencilMask( ~0U );
qglClearStencil( 0U );
qglStencilFunc( GL_ALWAYS, 0U, ~0U );
qglStencilOp( GL_KEEP, GL_INCR, GL_INCR );
}
r_measureOverdraw->modified = qfalse;
} else
{
// this is only reached if it was on and is now off
if ( r_measureOverdraw->modified ) {
R_IssuePendingRenderCommands();
qglDisable( GL_STENCIL_TEST );
}
r_measureOverdraw->modified = qfalse;
}
//
// texturemode stuff
//
if ( r_textureMode->modified ) {
R_IssuePendingRenderCommands();
GL_TextureMode( r_textureMode->string );
r_textureMode->modified = qfalse;
}
//
// ATI stuff
//
// TRUFORM
if ( qglPNTrianglesiATI ) {
// tess
if ( r_ati_truform_tess->modified ) {
r_ati_truform_tess->modified = qfalse;
// cap if necessary
if ( r_ati_truform_tess->value > glConfig.ATIMaxTruformTess ) {
ri.Cvar_Set( "r_ati_truform_tess", va( "%d",glConfig.ATIMaxTruformTess ) );
}
qglPNTrianglesiATI( GL_PN_TRIANGLES_TESSELATION_LEVEL_ATI, r_ati_truform_tess->value );
}
// point mode
if ( r_ati_truform_pointmode->modified ) {
r_ati_truform_pointmode->modified = qfalse;
// GR - shorten the mode name
if ( !Q_stricmp( r_ati_truform_pointmode->string, "LINEAR" ) ) {
glConfig.ATIPointMode = (int)GL_PN_TRIANGLES_POINT_MODE_LINEAR_ATI;
// GR - fix point mode change
} else if ( !Q_stricmp( r_ati_truform_pointmode->string, "CUBIC" ) ) {
glConfig.ATIPointMode = (int)GL_PN_TRIANGLES_POINT_MODE_CUBIC_ATI;
} else {
// bogus value, set to valid
glConfig.ATIPointMode = (int)GL_PN_TRIANGLES_POINT_MODE_CUBIC_ATI;
ri.Cvar_Set( "r_ati_truform_pointmode", "LINEAR" );
}
qglPNTrianglesiATI( GL_PN_TRIANGLES_POINT_MODE_ATI, glConfig.ATIPointMode );
}
// normal mode
if ( r_ati_truform_normalmode->modified ) {
r_ati_truform_normalmode->modified = qfalse;
// GR - shorten the mode name
if ( !Q_stricmp( r_ati_truform_normalmode->string, "LINEAR" ) ) {
glConfig.ATINormalMode = (int)GL_PN_TRIANGLES_NORMAL_MODE_LINEAR_ATI;
// GR - fix normal mode change
} else if ( !Q_stricmp( r_ati_truform_normalmode->string, "QUADRATIC" ) ) {
glConfig.ATINormalMode = (int)GL_PN_TRIANGLES_NORMAL_MODE_QUADRATIC_ATI;
} else {
// bogus value, set to valid
glConfig.ATINormalMode = (int)GL_PN_TRIANGLES_NORMAL_MODE_LINEAR_ATI;
ri.Cvar_Set( "r_ati_truform_normalmode", "LINEAR" );
}
qglPNTrianglesiATI( GL_PN_TRIANGLES_NORMAL_MODE_ATI, glConfig.ATINormalMode );
}
}
//
// NVidia stuff
//
// fog control
if ( glConfig.NVFogAvailable && r_nv_fogdist_mode->modified ) {
r_nv_fogdist_mode->modified = qfalse;
if ( !Q_stricmp( r_nv_fogdist_mode->string, "GL_EYE_PLANE_ABSOLUTE_NV" ) ) {
glConfig.NVFogMode = (int)GL_EYE_PLANE_ABSOLUTE_NV;
} else if ( !Q_stricmp( r_nv_fogdist_mode->string, "GL_EYE_PLANE" ) ) {
glConfig.NVFogMode = (int)GL_EYE_PLANE;
} else if ( !Q_stricmp( r_nv_fogdist_mode->string, "GL_EYE_RADIAL_NV" ) ) {
glConfig.NVFogMode = (int)GL_EYE_RADIAL_NV;
} else {
// in case this was really 'else', store a valid value for next time
glConfig.NVFogMode = (int)GL_EYE_RADIAL_NV;
ri.Cvar_Set( "r_nv_fogdist_mode", "GL_EYE_RADIAL_NV" );
}
}
//
// gamma stuff
//
if ( r_gamma->modified ) {
r_gamma->modified = qfalse;
R_IssuePendingRenderCommands();
R_SetColorMappings();
}
// check for errors
if ( !r_ignoreGLErrors->integer ) {
int err;
R_IssuePendingRenderCommands();
if ( ( err = qglGetError() ) != GL_NO_ERROR ) {
ri.Error( ERR_FATAL, "RE_BeginFrame() - glGetError() failed (0x%x)!", err );
}
}
if (glConfig.stereoEnabled) {
if( !(cmd = R_GetCommandBuffer(sizeof(*cmd))) )
return;
cmd->commandId = RC_DRAW_BUFFER;
if ( stereoFrame == STEREO_LEFT ) {
cmd->buffer = (int)GL_BACK_LEFT;
} else if ( stereoFrame == STEREO_RIGHT ) {
cmd->buffer = (int)GL_BACK_RIGHT;
} else {
ri.Error( ERR_FATAL, "RE_BeginFrame: Stereo is enabled, but stereoFrame was %i", stereoFrame );
}
}
else
{
if(r_anaglyphMode->integer)
{
if(r_anaglyphMode->modified)
{
// clear both, front and backbuffer.
qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
backEnd.colorMask[0] = GL_FALSE;
backEnd.colorMask[1] = GL_FALSE;
backEnd.colorMask[2] = GL_FALSE;
backEnd.colorMask[3] = GL_FALSE;
if (glRefConfig.framebufferObject)
{
// clear all framebuffers
if (tr.msaaResolveFbo)
{
FBO_Bind(tr.msaaResolveFbo);
qglClear(GL_COLOR_BUFFER_BIT);
}
if (tr.renderFbo)
{
FBO_Bind(tr.renderFbo);
qglClear(GL_COLOR_BUFFER_BIT);
}
FBO_Bind(NULL);
}
qglDrawBuffer(GL_FRONT);
qglClear(GL_COLOR_BUFFER_BIT);
qglDrawBuffer(GL_BACK);
qglClear(GL_COLOR_BUFFER_BIT);
r_anaglyphMode->modified = qfalse;
}
if(stereoFrame == STEREO_LEFT)
{
if( !(cmd = R_GetCommandBuffer(sizeof(*cmd))) )
return;
if( !(colcmd = R_GetCommandBuffer(sizeof(*colcmd))) )
return;
}
else if(stereoFrame == STEREO_RIGHT)
{
clearDepthCommand_t *cldcmd;
if( !(cldcmd = R_GetCommandBuffer(sizeof(*cldcmd))) )
return;
cldcmd->commandId = RC_CLEARDEPTH;
if( !(colcmd = R_GetCommandBuffer(sizeof(*colcmd))) )
return;
}
else
ri.Error( ERR_FATAL, "RE_BeginFrame: Stereo is enabled, but stereoFrame was %i", stereoFrame );
R_SetColorMode(colcmd->rgba, stereoFrame, r_anaglyphMode->integer);
colcmd->commandId = RC_COLORMASK;
}
else
{
if(stereoFrame != STEREO_CENTER)
ri.Error( ERR_FATAL, "RE_BeginFrame: Stereo is disabled, but stereoFrame was %i", stereoFrame );
if( !(cmd = R_GetCommandBuffer(sizeof(*cmd))) )
return;
}
if(cmd)
{
cmd->commandId = RC_DRAW_BUFFER;
if(r_anaglyphMode->modified)
{
qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
backEnd.colorMask[0] = 0;
backEnd.colorMask[1] = 0;
backEnd.colorMask[2] = 0;
backEnd.colorMask[3] = 0;
r_anaglyphMode->modified = qfalse;
}
if (!Q_stricmp(r_drawBuffer->string, "GL_FRONT"))
cmd->buffer = (int)GL_FRONT;
else
cmd->buffer = (int)GL_BACK;
}
}
tr.refdef.stereoFrame = stereoFrame;
}
/*
===============
RB_ShowImages
Draw all the images to the screen, on top of whatever
was there. This is used to test for texture thrashing.
Also called by RE_EndRegistration
===============
*/
void RB_ShowImages( void ) {
int i;
image_t *image;
float x, y, w, h;
int start, end;
#ifdef VCMODS_OPENGLES
vec2_t texcoords[4] = { {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f} };
vec2_t verts[4];
glIndex_t indicies[6] = { 0, 1, 2, 0, 3, 2};
#endif
if ( !backEnd.projection2D ) {
RB_SetGL2D();
}
qglClear( GL_COLOR_BUFFER_BIT );
qglFinish();
start = ri.Milliseconds();
#ifdef VCMODS_OPENGLES
qglEnableClientState( GL_TEXTURE_COORD_ARRAY );
#endif
for ( i=0 ; i<tr.numImages ; i++ ) {
image = tr.images[i];
w = glConfig.vidWidth / 20;
h = glConfig.vidHeight / 15;
x = i % 20 * w;
y = i / 20 * h;
// show in proportional size in mode 2
if ( r_showImages->integer == 2 ) {
w *= image->uploadWidth / 512.0f;
h *= image->uploadHeight / 512.0f;
}
#ifdef VCMODS_OPENGLES
verts[0][0] = x; verts[0][1] = y;
verts[1][0] = x+w; verts[1][1] = y;
verts[2][0] = x+w; verts[2][1] = y+h;
verts[3][0] = x; verts[3][1] = y+h;
qglTexCoordPointer( 2, GL_FLOAT, 0, texcoords );
qglVertexPointer ( 2, GL_FLOAT, 0, verts );
qglDrawElements( GL_TRIANGLE_STRIP, 6, GL_INDEX_TYPE, indicies );
#else
GL_Bind( image );
qglBegin (GL_QUADS);
qglTexCoord2f( 0, 0 );
qglVertex2f( x, y );
qglTexCoord2f( 1, 0 );
qglVertex2f( x + w, y );
qglTexCoord2f( 1, 1 );
qglVertex2f( x + w, y + h );
qglTexCoord2f( 0, 1 );
qglVertex2f( x, y + h );
qglEnd();
#endif
}
#ifdef VCMODS_OPENGLES
qglDisableClientState( GL_TEXTURE_COORD_ARRAY );
#endif
qglFinish();
end = ri.Milliseconds();
ri.Printf( PRINT_ALL, "%i msec to draw all images\n", end - start );
}
/*
=================
RB_BeginDrawingView
Any mirrored or portaled views have already been drawn, so prepare
to actually render the visible surfaces for this view
=================
*/
void RB_BeginDrawingView(void)
{
int clearBits = 0;
// sync with gl if needed
if(r_finish->integer == 1 && !glState.finishCalled)
{
qglFinish();
glState.finishCalled = qtrue;
}
if(r_finish->integer == 0)
{
glState.finishCalled = qtrue;
}
// we will need to change the projection matrix before drawing
// 2D images again
backEnd.projection2D = qfalse;
//
// set the modelview matrix for the viewer
//
SetViewportAndScissor();
// ensures that depth writes are enabled for the depth clear
GL_State(GLS_DEFAULT);
////////// (SA) modified to ensure one glclear() per frame at most
// clear relevant buffers
clearBits = 0;
if(r_measureOverdraw->integer || r_shadows->integer == 2)
{
clearBits |= GL_STENCIL_BUFFER_BIT;
}
if(r_uiFullScreen->integer)
{
clearBits = GL_DEPTH_BUFFER_BIT; // (SA) always just clear depth for menus
}
else if(skyboxportal)
{
if(backEnd.refdef.rdflags & RDF_SKYBOXPORTAL) // portal scene, clear whatever is necessary
{
clearBits |= GL_DEPTH_BUFFER_BIT;
if(r_fastsky->integer || backEnd.refdef.rdflags & RDF_NOWORLDMODEL) // fastsky: clear color
{
// try clearing first with the portal sky fog color, then the world fog color, then finally a default
clearBits |= GL_COLOR_BUFFER_BIT;
if(glfogsettings[FOG_PORTALVIEW].registered)
{
qglClearColor(glfogsettings[FOG_PORTALVIEW].color[0], glfogsettings[FOG_PORTALVIEW].color[1], glfogsettings[FOG_PORTALVIEW].color[2], glfogsettings[FOG_PORTALVIEW].color[3]);
}
else if(glfogNum > FOG_NONE && glfogsettings[FOG_CURRENT].registered)
{
qglClearColor(glfogsettings[FOG_CURRENT].color[0], glfogsettings[FOG_CURRENT].color[1], glfogsettings[FOG_CURRENT].color[2], glfogsettings[FOG_CURRENT].color[3]);
}
else
{
// qglClearColor ( 1.0, 0.0, 0.0, 1.0 ); // red clear for testing portal sky clear
qglClearColor(0.5, 0.5, 0.5, 1.0);
}
}
else // rendered sky (either clear color or draw quake sky)
{
if(glfogsettings[FOG_PORTALVIEW].registered)
{
qglClearColor(glfogsettings[FOG_PORTALVIEW].color[0], glfogsettings[FOG_PORTALVIEW].color[1], glfogsettings[FOG_PORTALVIEW].color[2], glfogsettings[FOG_PORTALVIEW].color[3]);
if(glfogsettings[FOG_PORTALVIEW].clearscreen) // portal fog requests a screen clear (distance fog rather than quake sky)
{
clearBits |= GL_COLOR_BUFFER_BIT;
}
}
}
}
else // world scene with portal sky, don't clear any buffers, just set the fog color if there is one
{
clearBits |= GL_DEPTH_BUFFER_BIT; // this will go when I get the portal sky rendering way out in the zbuffer (or not writing to zbuffer at all)
if(glfogNum > FOG_NONE && glfogsettings[FOG_CURRENT].registered)
{
if(backEnd.refdef.rdflags & RDF_UNDERWATER)
{
if(glfogsettings[FOG_CURRENT].mode == GL_LINEAR)
{
clearBits |= GL_COLOR_BUFFER_BIT;
}
}
else if(!(r_portalsky->integer)) // portal skies have been manually turned off, clear bg color
{
clearBits |= GL_COLOR_BUFFER_BIT;
}
qglClearColor(glfogsettings[FOG_CURRENT].color[0], glfogsettings[FOG_CURRENT].color[1], glfogsettings[FOG_CURRENT].color[2], glfogsettings[FOG_CURRENT].color[3]);
}
}
}
else // world scene with no portal sky
{
clearBits |= GL_DEPTH_BUFFER_BIT;
// NERVE - SMF - we don't want to clear the buffer when no world model is specified
if(backEnd.refdef.rdflags & RDF_NOWORLDMODEL)
{
clearBits &= ~GL_COLOR_BUFFER_BIT;
}
// -NERVE - SMF
// (SA) well, this is silly then
else if(r_fastsky->integer) // || backEnd.refdef.rdflags & RDF_NOWORLDMODEL
{
clearBits |= GL_COLOR_BUFFER_BIT;
if(glfogsettings[FOG_CURRENT].registered) // try to clear fastsky with current fog color
{
qglClearColor(glfogsettings[FOG_CURRENT].color[0], glfogsettings[FOG_CURRENT].color[1], glfogsettings[FOG_CURRENT].color[2], glfogsettings[FOG_CURRENT].color[3]);
}
else
{
// qglClearColor ( 0.0, 0.0, 1.0, 1.0 ); // blue clear for testing world sky clear
qglClearColor(0.5, 0.5, 0.5, 1.0);
}
}
else // world scene, no portal sky, not fastsky, clear color if fog says to, otherwise, just set the clearcolor
{
if(glfogsettings[FOG_CURRENT].registered) // try to clear fastsky with current fog color
{
qglClearColor(glfogsettings[FOG_CURRENT].color[0], glfogsettings[FOG_CURRENT].color[1], glfogsettings[FOG_CURRENT].color[2], glfogsettings[FOG_CURRENT].color[3]);
if(glfogsettings[FOG_CURRENT].clearscreen) // world fog requests a screen clear (distance fog rather than quake sky)
{
clearBits |= GL_COLOR_BUFFER_BIT;
}
}
}
}
if(clearBits)
{
qglClear(clearBits);
}
//----(SA) done
if((backEnd.refdef.rdflags & RDF_HYPERSPACE))
{
RB_Hyperspace();
return;
}
else
{
backEnd.isHyperspace = qfalse;
}
glState.faceCulling = -1; // force face culling to set next time
// we will only draw a sun if there was sky rendered in this view
backEnd.skyRenderedThisView = qfalse;
// clip to the plane of the portal
if(backEnd.viewParms.isPortal)
{
float plane[4];
double plane2[4];
plane[0] = backEnd.viewParms.portalPlane.normal[0];
plane[1] = backEnd.viewParms.portalPlane.normal[1];
plane[2] = backEnd.viewParms.portalPlane.normal[2];
plane[3] = backEnd.viewParms.portalPlane.dist;
plane2[0] = DotProduct(backEnd.viewParms.or.axis[0], plane);
plane2[1] = DotProduct(backEnd.viewParms.or.axis[1], plane);
plane2[2] = DotProduct(backEnd.viewParms.or.axis[2], plane);
plane2[3] = DotProduct(plane, backEnd.viewParms.or.origin) - plane[3];
qglLoadMatrixf(s_flipMatrix);
qglClipPlane(GL_CLIP_PLANE0, plane2);
qglEnable(GL_CLIP_PLANE0);
}
else
{
qglDisable(GL_CLIP_PLANE0);
}
}
/*
============
FBO_Init
============
*/
void FBO_Init(void)
{
int i;
int hdrFormat, multisample = 0;
ri.Printf(PRINT_ALL, "------- FBO_Init -------\n");
if(!glRefConfig.framebufferObject)
return;
tr.numFBOs = 0;
GL_CheckErrors();
R_IssuePendingRenderCommands();
hdrFormat = GL_RGBA8;
if (r_hdr->integer && glRefConfig.textureFloat)
hdrFormat = GL_RGBA16F_ARB;
if (glRefConfig.framebufferMultisample)
qglGetIntegerv(GL_MAX_SAMPLES, &multisample);
if (r_ext_framebuffer_multisample->integer < multisample)
multisample = r_ext_framebuffer_multisample->integer;
if (multisample < 2 || !glRefConfig.framebufferBlit)
multisample = 0;
if (multisample != r_ext_framebuffer_multisample->integer)
ri.Cvar_SetValue("r_ext_framebuffer_multisample", (float)multisample);
// only create a render FBO if we need to resolve MSAA or do HDR
// otherwise just render straight to the screen (tr.renderFbo = NULL)
if (multisample && glRefConfig.framebufferMultisample)
{
tr.renderFbo = FBO_Create("_render", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_CreateBuffer(tr.renderFbo, hdrFormat, 0, multisample);
FBO_CreateBuffer(tr.renderFbo, GL_DEPTH_COMPONENT24, 0, multisample);
R_CheckFBO(tr.renderFbo);
tr.msaaResolveFbo = FBO_Create("_msaaResolve", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_AttachImage(tr.msaaResolveFbo, tr.renderImage, GL_COLOR_ATTACHMENT0, 0);
FBO_AttachImage(tr.msaaResolveFbo, tr.renderDepthImage, GL_DEPTH_ATTACHMENT, 0);
R_CheckFBO(tr.msaaResolveFbo);
}
else if (r_hdr->integer)
{
tr.renderFbo = FBO_Create("_render", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_AttachImage(tr.renderFbo, tr.renderImage, GL_COLOR_ATTACHMENT0, 0);
FBO_AttachImage(tr.renderFbo, tr.renderDepthImage, GL_DEPTH_ATTACHMENT, 0);
R_CheckFBO(tr.renderFbo);
}
// clear render buffer
// this fixes the corrupt screen bug with r_hdr 1 on older hardware
if (tr.renderFbo)
{
GL_BindFramebuffer(GL_FRAMEBUFFER, tr.renderFbo->frameBuffer);
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
}
if (tr.screenScratchImage)
{
tr.screenScratchFbo = FBO_Create("screenScratch", tr.screenScratchImage->width, tr.screenScratchImage->height);
FBO_AttachImage(tr.screenScratchFbo, tr.screenScratchImage, GL_COLOR_ATTACHMENT0, 0);
FBO_AttachImage(tr.screenScratchFbo, tr.renderDepthImage, GL_DEPTH_ATTACHMENT, 0);
R_CheckFBO(tr.screenScratchFbo);
}
if (tr.sunRaysImage)
{
tr.sunRaysFbo = FBO_Create("_sunRays", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_AttachImage(tr.sunRaysFbo, tr.sunRaysImage, GL_COLOR_ATTACHMENT0, 0);
FBO_AttachImage(tr.sunRaysFbo, tr.renderDepthImage, GL_DEPTH_ATTACHMENT, 0);
R_CheckFBO(tr.sunRaysFbo);
}
if (MAX_DRAWN_PSHADOWS && tr.pshadowMaps[0])
{
for( i = 0; i < MAX_DRAWN_PSHADOWS; i++)
{
tr.pshadowFbos[i] = FBO_Create(va("_shadowmap%d", i), tr.pshadowMaps[i]->width, tr.pshadowMaps[i]->height);
// FIXME: this next line wastes 16mb with 16x512x512 sun shadow maps, skip if OpenGL 4.3+ or ARB_framebuffer_no_attachments
FBO_CreateBuffer(tr.pshadowFbos[i], GL_RGBA8, 0, 0);
FBO_AttachImage(tr.pshadowFbos[i], tr.pshadowMaps[i], GL_DEPTH_ATTACHMENT, 0);
R_CheckFBO(tr.pshadowFbos[i]);
}
}
if (tr.sunShadowDepthImage[0])
{
for (i = 0; i < 4; i++)
{
tr.sunShadowFbo[i] = FBO_Create("_sunshadowmap", tr.sunShadowDepthImage[i]->width, tr.sunShadowDepthImage[i]->height);
// FIXME: this next line wastes 16mb with 4x1024x1024 sun shadow maps, skip if OpenGL 4.3+ or ARB_framebuffer_no_attachments
// This at least gets sun shadows working on older GPUs (Intel)
FBO_CreateBuffer(tr.sunShadowFbo[i], GL_RGBA8, 0, 0);
FBO_AttachImage(tr.sunShadowFbo[i], tr.sunShadowDepthImage[i], GL_DEPTH_ATTACHMENT, 0);
R_CheckFBO(tr.sunShadowFbo[i]);
}
}
if (tr.screenShadowImage)
{
tr.screenShadowFbo = FBO_Create("_screenshadow", tr.screenShadowImage->width, tr.screenShadowImage->height);
FBO_AttachImage(tr.screenShadowFbo, tr.screenShadowImage, GL_COLOR_ATTACHMENT0, 0);
R_CheckFBO(tr.screenShadowFbo);
}
if (tr.textureScratchImage[0])
{
for (i = 0; i < 2; i++)
{
tr.textureScratchFbo[i] = FBO_Create(va("_texturescratch%d", i), tr.textureScratchImage[i]->width, tr.textureScratchImage[i]->height);
FBO_AttachImage(tr.textureScratchFbo[i], tr.textureScratchImage[i], GL_COLOR_ATTACHMENT0, 0);
R_CheckFBO(tr.textureScratchFbo[i]);
}
}
if (tr.calcLevelsImage)
{
tr.calcLevelsFbo = FBO_Create("_calclevels", tr.calcLevelsImage->width, tr.calcLevelsImage->height);
FBO_AttachImage(tr.calcLevelsFbo, tr.calcLevelsImage, GL_COLOR_ATTACHMENT0, 0);
R_CheckFBO(tr.calcLevelsFbo);
}
if (tr.targetLevelsImage)
{
tr.targetLevelsFbo = FBO_Create("_targetlevels", tr.targetLevelsImage->width, tr.targetLevelsImage->height);
FBO_AttachImage(tr.targetLevelsFbo, tr.targetLevelsImage, GL_COLOR_ATTACHMENT0, 0);
R_CheckFBO(tr.targetLevelsFbo);
}
if (tr.quarterImage[0])
{
for (i = 0; i < 2; i++)
{
tr.quarterFbo[i] = FBO_Create(va("_quarter%d", i), tr.quarterImage[i]->width, tr.quarterImage[i]->height);
FBO_AttachImage(tr.quarterFbo[i], tr.quarterImage[i], GL_COLOR_ATTACHMENT0, 0);
R_CheckFBO(tr.quarterFbo[i]);
}
}
if (tr.hdrDepthImage)
{
tr.hdrDepthFbo = FBO_Create("_hdrDepth", tr.hdrDepthImage->width, tr.hdrDepthImage->height);
FBO_AttachImage(tr.hdrDepthFbo, tr.hdrDepthImage, GL_COLOR_ATTACHMENT0, 0);
R_CheckFBO(tr.hdrDepthFbo);
}
if (tr.screenSsaoImage)
{
tr.screenSsaoFbo = FBO_Create("_screenssao", tr.screenSsaoImage->width, tr.screenSsaoImage->height);
FBO_AttachImage(tr.screenSsaoFbo, tr.screenSsaoImage, GL_COLOR_ATTACHMENT0, 0);
R_CheckFBO(tr.screenSsaoFbo);
}
if (tr.renderCubeImage)
{
tr.renderCubeFbo = FBO_Create("_renderCubeFbo", tr.renderCubeImage->width, tr.renderCubeImage->height);
FBO_AttachImage(tr.renderCubeFbo, tr.renderCubeImage, GL_COLOR_ATTACHMENT0, 0);
FBO_CreateBuffer(tr.renderCubeFbo, GL_DEPTH_COMPONENT24_ARB, 0, 0);
R_CheckFBO(tr.renderCubeFbo);
}
GL_CheckErrors();
GL_BindFramebuffer(GL_FRAMEBUFFER, 0);
glState.currentFBO = NULL;
}
/*
* RB_BeginDrawingView
*
* Any mirrored or portaled views have already been drawn, so prepare
* to actually render the visible surfaces for this view
*/
void
RB_BeginDrawingView(void)
{
int clearBits = 0;
/* sync with gl if needed */
if(r_finish->integer == 1 && !glState.finishCalled){
qglFinish ();
glState.finishCalled = qtrue;
}
if(r_finish->integer == 0){
glState.finishCalled = qtrue;
}
/* we will need to change the projection matrix before drawing
* 2D images again */
backEnd.projection2D = qfalse;
if(glRefConfig.framebufferObject){
/* FIXME: HUGE HACK: render to the screen fbo if we've already postprocessed the frame and aren't drawing more world */
if(backEnd.viewParms.targetFbo == tr.renderFbo && backEnd.framePostProcessed &&
(backEnd.refdef.rdflags & RDF_NOWORLDMODEL)){
FBO_Bind(tr.screenScratchFbo);
}else{
FBO_Bind(backEnd.viewParms.targetFbo);
}
}
/*
* set the modelview matrix for the viewer
* */
SetViewportAndScissor();
/* ensures that depth writes are enabled for the depth clear */
GL_State(GLS_DEFAULT);
/* clear relevant buffers */
clearBits = GL_DEPTH_BUFFER_BIT;
if(r_measureOverdraw->integer || r_shadows->integer == 2){
clearBits |= GL_STENCIL_BUFFER_BIT;
}
if(r_fastsky->integer && !(backEnd.refdef.rdflags & RDF_NOWORLDMODEL)){
clearBits |= GL_COLOR_BUFFER_BIT; /* FIXME: only if sky shaders have been used */
#ifdef _DEBUG
qglClearColor(0.8f, 0.7f, 0.4f, 1.0f); /* FIXME: get color of sky */
#else
qglClearColor(0.0f, 0.0f, 0.0f, 1.0f); /* FIXME: get color of sky */
#endif
}
/* clear to white for shadow maps */
if(backEnd.viewParms.isShadowmap){
clearBits |= GL_COLOR_BUFFER_BIT;
qglClearColor(1.0f, 1.0f, 1.0f, 1.0f);
}
qglClear(clearBits);
if((backEnd.refdef.rdflags & RDF_HYPERSPACE)){
RB_Hyperspace();
return;
}else{
backEnd.isHyperspace = qfalse;
}
glState.faceCulling = -1; /* force face culling to set next time */
/* we will only draw a sun if there was sky rendered in this view */
backEnd.skyRenderedThisView = qfalse;
#ifdef REACTION
backEnd.hasSunFlare = qfalse;
#endif
/* clip to the plane of the portal */
if(backEnd.viewParms.isPortal){
float plane[4];
double plane2[4];
plane[0] = backEnd.viewParms.portalPlane.normal[0];
plane[1] = backEnd.viewParms.portalPlane.normal[1];
plane[2] = backEnd.viewParms.portalPlane.normal[2];
plane[3] = backEnd.viewParms.portalPlane.dist;
plane2[0] = dotv3 (backEnd.viewParms.or.axis[0], plane);
plane2[1] = dotv3 (backEnd.viewParms.or.axis[1], plane);
plane2[2] = dotv3 (backEnd.viewParms.or.axis[2], plane);
plane2[3] = dotv3 (plane, backEnd.viewParms.or.origin) - plane[3];
GL_SetModelviewMatrix(s_flipMatrix);
}
}
/*
==================
RB_R200_DrawInteractions
==================
*/
void RB_R200_DrawInteractions( void ) {
qglEnable( GL_STENCIL_TEST );
for ( viewLight_t *vLight = backEnd.viewDef->viewLights ; vLight ; vLight = vLight->next ) {
// do fogging later
if ( vLight->lightShader->IsFogLight() ) {
continue;
}
if ( vLight->lightShader->IsBlendLight() ) {
continue;
}
backEnd.vLight = vLight;
RB_LogComment( "---------- RB_RenderViewLight 0x%p ----------\n", vLight );
// clear the stencil buffer if needed
if ( vLight->globalShadows || vLight->localShadows ) {
backEnd.currentScissor = vLight->scissorRect;
if ( r_useScissor.GetBool() ) {
qglScissor( backEnd.viewDef->viewport.x1 + backEnd.currentScissor.x1,
backEnd.viewDef->viewport.y1 + backEnd.currentScissor.y1,
backEnd.currentScissor.x2 + 1 - backEnd.currentScissor.x1,
backEnd.currentScissor.y2 + 1 - backEnd.currentScissor.y1 );
}
qglClear( GL_STENCIL_BUFFER_BIT );
} else {
// no shadows, so no need to read or write the stencil buffer
// we might in theory want to use GL_ALWAYS instead of disabling
// completely, to satisfy the invarience rules
qglStencilFunc( GL_ALWAYS, 128, 255 );
}
if ( r_useShadowVertexProgram.GetBool() ) {
qglEnable( GL_VERTEX_PROGRAM_ARB );
qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, VPROG_STENCIL_SHADOW );
RB_StencilShadowPass( vLight->globalShadows );
RB_R200_ARB_CreateDrawInteractions( vLight->localInteractions );
qglEnable( GL_VERTEX_PROGRAM_ARB );
qglBindProgramARB( GL_VERTEX_PROGRAM_ARB, VPROG_STENCIL_SHADOW );
RB_StencilShadowPass( vLight->localShadows );
RB_R200_ARB_CreateDrawInteractions( vLight->globalInteractions );
qglDisable( GL_VERTEX_PROGRAM_ARB ); // if there weren't any globalInteractions, it would have stayed on
} else {
RB_StencilShadowPass( vLight->globalShadows );
RB_R200_ARB_CreateDrawInteractions( vLight->localInteractions );
RB_StencilShadowPass( vLight->localShadows );
RB_R200_ARB_CreateDrawInteractions( vLight->globalInteractions );
}
if ( r_skipTranslucent.GetBool() ) {
continue;
}
// disable stencil testing for translucent interactions, because
// the shadow isn't calculated at their point, and the shadow
// behind them may be depth fighting with a back side, so there
// isn't any reasonable thing to do
qglStencilFunc( GL_ALWAYS, 128, 255 );
RB_R200_ARB_CreateDrawInteractions( vLight->translucentInteractions );
}
}
/*
====================
RE_BeginFrame
If running in stereo, RE_BeginFrame will be called twice
for each RE_EndFrame
====================
*/
void RE_BeginFrame( stereoFrame_t stereoFrame ) {
drawBufferCommand_t *cmd = NULL;
colorMaskCommand_t *colcmd = NULL;
if ( !tr.registered ) {
return;
}
glState.finishCalled = qfalse;
tr.frameCount++;
tr.frameSceneNum = 0;
//
// do overdraw measurement
//
#ifndef HAVE_GLES
if ( r_measureOverdraw->integer )
{
if ( glConfig.stencilBits < 4 )
{
ri.Printf( PRINT_ALL, "Warning: not enough stencil bits to measure overdraw: %d\n", glConfig.stencilBits );
ri.Cvar_Set( "r_measureOverdraw", "0" );
r_measureOverdraw->modified = qfalse;
}
else if ( r_shadows->integer == 2 )
{
ri.Printf( PRINT_ALL, "Warning: stencil shadows and overdraw measurement are mutually exclusive\n" );
ri.Cvar_Set( "r_measureOverdraw", "0" );
r_measureOverdraw->modified = qfalse;
}
else
{
R_IssuePendingRenderCommands();
qglEnable( GL_STENCIL_TEST );
qglStencilMask( ~0U );
qglClearStencil( 0U );
qglStencilFunc( GL_ALWAYS, 0U, ~0U );
qglStencilOp( GL_KEEP, GL_INCR, GL_INCR );
}
r_measureOverdraw->modified = qfalse;
}
else
{
// this is only reached if it was on and is now off
if ( r_measureOverdraw->modified ) {
R_IssuePendingRenderCommands();
qglDisable( GL_STENCIL_TEST );
}
r_measureOverdraw->modified = qfalse;
}
#endif
//
// texturemode stuff
//
if ( r_textureMode->modified ) {
R_IssuePendingRenderCommands();
GL_TextureMode( r_textureMode->string );
r_textureMode->modified = qfalse;
}
//
// gamma stuff
//
if ( r_gamma->modified ) {
r_gamma->modified = qfalse;
R_IssuePendingRenderCommands();
R_SetColorMappings();
}
// check for errors
if ( !r_ignoreGLErrors->integer )
{
int err;
R_IssuePendingRenderCommands();
if ((err = qglGetError()) != GL_NO_ERROR)
ri.Error(ERR_FATAL, "RE_BeginFrame() - glGetError() failed (0x%x)!", err);
}
#ifndef HAVE_GLES
if (glConfig.stereoEnabled) {
if( !(cmd = R_GetCommandBuffer(sizeof(*cmd))) )
return;
cmd->commandId = RC_DRAW_BUFFER;
if ( stereoFrame == STEREO_LEFT ) {
cmd->buffer = (int)GL_BACK_LEFT;
} else if ( stereoFrame == STEREO_RIGHT ) {
cmd->buffer = (int)GL_BACK_RIGHT;
} else {
ri.Error( ERR_FATAL, "RE_BeginFrame: Stereo is enabled, but stereoFrame was %i", stereoFrame );
}
}
else
{
if(r_anaglyphMode->integer)
{
if(r_anaglyphMode->modified)
{
// clear both, front and backbuffer.
qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
qglClearColor(0.0f, 0.0f, 0.0f, 1.0f);
qglDrawBuffer(GL_FRONT);
qglClear(GL_COLOR_BUFFER_BIT);
qglDrawBuffer(GL_BACK);
qglClear(GL_COLOR_BUFFER_BIT);
r_anaglyphMode->modified = qfalse;
}
if(stereoFrame == STEREO_LEFT)
{
if( !(cmd = R_GetCommandBuffer(sizeof(*cmd))) )
return;
if( !(colcmd = R_GetCommandBuffer(sizeof(*colcmd))) )
return;
}
else if(stereoFrame == STEREO_RIGHT)
{
clearDepthCommand_t *cldcmd;
if( !(cldcmd = R_GetCommandBuffer(sizeof(*cldcmd))) )
return;
cldcmd->commandId = RC_CLEARDEPTH;
if( !(colcmd = R_GetCommandBuffer(sizeof(*colcmd))) )
return;
}
else
ri.Error( ERR_FATAL, "RE_BeginFrame: Stereo is enabled, but stereoFrame was %i", stereoFrame );
R_SetColorMode(colcmd->rgba, stereoFrame, r_anaglyphMode->integer);
colcmd->commandId = RC_COLORMASK;
}
else
#endif
{
if(stereoFrame != STEREO_CENTER)
ri.Error( ERR_FATAL, "RE_BeginFrame: Stereo is disabled, but stereoFrame was %i", stereoFrame );
if( !(cmd = R_GetCommandBuffer(sizeof(*cmd))) )
return;
}
if(cmd)
{
cmd->commandId = RC_DRAW_BUFFER;
#ifndef HAVE_GLES
if(r_anaglyphMode->modified)
{
qglColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
r_anaglyphMode->modified = qfalse;
}
if (!Q_stricmp(r_drawBuffer->string, "GL_FRONT"))
cmd->buffer = (int)GL_FRONT;
else
#endif
cmd->buffer = (int)GL_BACK;
}
#ifndef HAVE_GLES
}
#endif
tr.refdef.stereoFrame = stereoFrame;
}
/*
==================
RB_STD_FogAllLights
==================
*/
void RB_STD_FogAllLights(void)
{
viewLight_t *vLight;
if (r_skipFogLights.GetBool() || r_showOverDraw.GetInteger() != 0
|| backEnd.viewDef->isXraySubview /* dont fog in xray mode*/
) {
return;
}
RB_LogComment("---------- RB_STD_FogAllLights ----------\n");
qglDisable(GL_STENCIL_TEST);
for (vLight = backEnd.viewDef->viewLights ; vLight ; vLight = vLight->next) {
backEnd.vLight = vLight;
if (!vLight->lightShader->IsFogLight() && !vLight->lightShader->IsBlendLight()) {
continue;
}
#if 0 // _D3XP disabled that
if (r_ignore.GetInteger()) {
// we use the stencil buffer to guarantee that no pixels will be
// double fogged, which happens in some areas that are thousands of
// units from the origin
backEnd.currentScissor = vLight->scissorRect;
if (r_useScissor.GetBool()) {
qglScissor(backEnd.viewDef->viewport.x1 + backEnd.currentScissor.x1,
backEnd.viewDef->viewport.y1 + backEnd.currentScissor.y1,
backEnd.currentScissor.x2 + 1 - backEnd.currentScissor.x1,
backEnd.currentScissor.y2 + 1 - backEnd.currentScissor.y1);
}
qglClear(GL_STENCIL_BUFFER_BIT);
qglEnable(GL_STENCIL_TEST);
// only pass on the cleared stencil values
qglStencilFunc(GL_EQUAL, 128, 255);
// when we pass the stencil test and depth test and are going to draw,
// increment the stencil buffer so we don't ever draw on that pixel again
qglStencilOp(GL_KEEP, GL_KEEP, GL_INCR);
}
#endif
if (vLight->lightShader->IsFogLight()) {
RB_FogPass(vLight->globalInteractions, vLight->localInteractions);
} else if (vLight->lightShader->IsBlendLight()) {
RB_BlendLight(vLight->globalInteractions, vLight->localInteractions);
}
qglDisable(GL_STENCIL_TEST);
}
qglEnable(GL_STENCIL_TEST);
}
/*
=============
RB_DrawBuffer
=============
*/
const void *RB_DrawBuffer( const void *data ) {
const drawBufferCommand_t *cmd;
cmd = (const drawBufferCommand_t *)data;
qglDrawBuffer( cmd->buffer );
// clear screen for debugging
if (tr.world && tr.refdef.doLAGoggles)
{
fog_t *fog = &tr.world->fogs[tr.world->numfogs];
qglClearColor(fog->parms.color[0], fog->parms.color[1], fog->parms.color[2], 1.0f );
qglClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
}
else if (tr.world && tr.world->globalFog != -1)
{
const unsigned int i = tr.world->fogs[tr.world->globalFog].colorInt;
qglClearColor( ( (byte *)&i )[0] / 255.0, ( (byte *)&i )[1] / 255.0, ( (byte *)&i )[2] / 255.0, 1.0 );
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
}
else if ( r_clear->integer )
{ // clear screen for debugging
int i = r_clear->integer;
if (i == 42) {
i = Q_irand(0,8);
}
switch (i)
{
default:
qglClearColor( 1, 0, 0.5, 1 );
break;
case 1:
qglClearColor( 1.0, 0.0, 0.0, 1.0); //red
break;
case 2:
qglClearColor( 0.0, 1.0, 0.0, 1.0); //green
break;
case 3:
qglClearColor( 1.0, 1.0, 0.0, 1.0); //yellow
break;
case 4:
qglClearColor( 0.0, 0.0, 1.0, 1.0); //blue
break;
case 5:
qglClearColor( 0.0, 1.0, 1.0, 1.0); //cyan
break;
case 6:
qglClearColor( 1.0, 0.0, 1.0, 1.0); //magenta
break;
case 7:
qglClearColor( 1.0, 1.0, 1.0, 1.0); //white
break;
case 8:
qglClearColor( 0.0, 0.0, 0.0, 1.0); //black
break;
}
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
}
return (const void *)(cmd + 1);
}
/*
============
FBO_Init
============
*/
void FBO_Init(void)
{
int i;
// int width, height, hdrFormat, multisample;
int hdrFormat, multisample;
ri.Printf(PRINT_ALL, "------- FBO_Init -------\n");
if(!glRefConfig.framebufferObject)
return;
tr.numFBOs = 0;
GL_CheckErrors();
R_IssuePendingRenderCommands();
/* if(glRefConfig.textureNonPowerOfTwo)
{
width = glConfig.vidWidth;
height = glConfig.vidHeight;
}
else
{
width = NextPowerOfTwo(glConfig.vidWidth);
height = NextPowerOfTwo(glConfig.vidHeight);
} */
hdrFormat = GL_RGBA8;
if (r_hdr->integer && glRefConfig.framebufferObject && glRefConfig.textureFloat)
{
hdrFormat = GL_RGBA16F_ARB;
}
qglGetIntegerv(GL_MAX_SAMPLES_EXT, &multisample);
if (r_ext_framebuffer_multisample->integer < multisample)
{
multisample = r_ext_framebuffer_multisample->integer;
}
if (multisample < 2 || !glRefConfig.framebufferBlit)
multisample = 0;
if (multisample != r_ext_framebuffer_multisample->integer)
{
ri.Cvar_SetValue("r_ext_framebuffer_multisample", (float)multisample);
}
// only create a render FBO if we need to resolve MSAA or do HDR
// otherwise just render straight to the screen (tr.renderFbo = NULL)
if (multisample && glRefConfig.framebufferMultisample)
{
tr.renderFbo = FBO_Create("_render", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_Bind(tr.renderFbo);
FBO_CreateBuffer(tr.renderFbo, hdrFormat, 0, multisample);
FBO_CreateBuffer(tr.renderFbo, GL_DEPTH_COMPONENT24_ARB, 0, multisample);
R_CheckFBO(tr.renderFbo);
tr.msaaResolveFbo = FBO_Create("_msaaResolve", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_Bind(tr.msaaResolveFbo);
//FBO_CreateBuffer(tr.msaaResolveFbo, hdrFormat, 0, 0);
FBO_AttachTextureImage(tr.renderImage, 0);
//FBO_CreateBuffer(tr.msaaResolveFbo, GL_DEPTH_COMPONENT24_ARB, 0, 0);
R_AttachFBOTextureDepth(tr.renderDepthImage->texnum);
R_CheckFBO(tr.msaaResolveFbo);
}
else if (r_hdr->integer)
{
tr.renderFbo = FBO_Create("_render", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_Bind(tr.renderFbo);
//FBO_CreateBuffer(tr.renderFbo, hdrFormat, 0, 0);
FBO_AttachTextureImage(tr.renderImage, 0);
//FBO_CreateBuffer(tr.renderFbo, GL_DEPTH_COMPONENT24_ARB, 0, 0);
R_AttachFBOTextureDepth(tr.renderDepthImage->texnum);
R_CheckFBO(tr.renderFbo);
}
// clear render buffer
// this fixes the corrupt screen bug with r_hdr 1 on older hardware
if (tr.renderFbo)
{
FBO_Bind(tr.renderFbo);
qglClearColor( 1, 0, 0.5, 1 );
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
FBO_Bind(NULL);
}
if (r_drawSunRays->integer)
{
tr.sunRaysFbo = FBO_Create("_sunRays", tr.renderDepthImage->width, tr.renderDepthImage->height);
FBO_Bind(tr.sunRaysFbo);
FBO_AttachTextureImage(tr.sunRaysImage, 0);
R_AttachFBOTextureDepth(tr.renderDepthImage->texnum);
R_CheckFBO(tr.sunRaysFbo);
}
// FIXME: Don't use separate color/depth buffers for a shadow buffer
if (MAX_DRAWN_PSHADOWS && tr.pshadowMaps[0])
{
for( i = 0; i < MAX_DRAWN_PSHADOWS; i++)
{
tr.pshadowFbos[i] = FBO_Create(va("_shadowmap%d", i), tr.pshadowMaps[i]->width, tr.pshadowMaps[i]->height);
FBO_Bind(tr.pshadowFbos[i]);
//FBO_CreateBuffer(tr.pshadowFbos[i], GL_RGBA8, 0, 0);
FBO_AttachTextureImage(tr.pshadowMaps[i], 0);
FBO_CreateBuffer(tr.pshadowFbos[i], GL_DEPTH_COMPONENT24_ARB, 0, 0);
//R_AttachFBOTextureDepth(tr.textureDepthImage->texnum);
R_CheckFBO(tr.pshadowFbos[i]);
}
}
if (tr.sunShadowDepthImage[0])
{
for ( i = 0; i < 4; i++)
{
tr.sunShadowFbo[i] = FBO_Create("_sunshadowmap", tr.sunShadowDepthImage[i]->width, tr.sunShadowDepthImage[i]->height);
FBO_Bind(tr.sunShadowFbo[i]);
//FBO_CreateBuffer(tr.sunShadowFbo[i], GL_RGBA8, 0, 0);
//FBO_AttachTextureImage(tr.sunShadowImage, 0);
qglDrawBuffer(GL_NONE);
qglReadBuffer(GL_NONE);
//FBO_CreateBuffer(tr.sunShadowFbo, GL_DEPTH_COMPONENT24_ARB, 0, 0);
R_AttachFBOTextureDepth(tr.sunShadowDepthImage[i]->texnum);
R_CheckFBO(tr.sunShadowFbo[i]);
}
tr.screenShadowFbo = FBO_Create("_screenshadow", tr.screenShadowImage->width, tr.screenShadowImage->height);
FBO_Bind(tr.screenShadowFbo);
FBO_AttachTextureImage(tr.screenShadowImage, 0);
R_CheckFBO(tr.screenShadowFbo);
}
for (i = 0; i < 2; i++)
{
tr.textureScratchFbo[i] = FBO_Create(va("_texturescratch%d", i), tr.textureScratchImage[i]->width, tr.textureScratchImage[i]->height);
FBO_Bind(tr.textureScratchFbo[i]);
//FBO_CreateBuffer(tr.textureScratchFbo[i], GL_RGBA8, 0, 0);
FBO_AttachTextureImage(tr.textureScratchImage[i], 0);
R_CheckFBO(tr.textureScratchFbo[i]);
}
{
tr.calcLevelsFbo = FBO_Create("_calclevels", tr.calcLevelsImage->width, tr.calcLevelsImage->height);
FBO_Bind(tr.calcLevelsFbo);
//FBO_CreateBuffer(tr.calcLevelsFbo, hdrFormat, 0, 0);
FBO_AttachTextureImage(tr.calcLevelsImage, 0);
R_CheckFBO(tr.calcLevelsFbo);
}
{
tr.targetLevelsFbo = FBO_Create("_targetlevels", tr.targetLevelsImage->width, tr.targetLevelsImage->height);
FBO_Bind(tr.targetLevelsFbo);
//FBO_CreateBuffer(tr.targetLevelsFbo, hdrFormat, 0, 0);
FBO_AttachTextureImage(tr.targetLevelsImage, 0);
R_CheckFBO(tr.targetLevelsFbo);
}
for (i = 0; i < 2; i++)
{
tr.quarterFbo[i] = FBO_Create(va("_quarter%d", i), tr.quarterImage[i]->width, tr.quarterImage[i]->height);
FBO_Bind(tr.quarterFbo[i]);
//FBO_CreateBuffer(tr.quarterFbo[i], hdrFormat, 0, 0);
FBO_AttachTextureImage(tr.quarterImage[i], 0);
R_CheckFBO(tr.quarterFbo[i]);
}
if (r_ssao->integer)
{
tr.hdrDepthFbo = FBO_Create("_hdrDepth", tr.hdrDepthImage->width, tr.hdrDepthImage->height);
FBO_Bind(tr.hdrDepthFbo);
FBO_AttachTextureImage(tr.hdrDepthImage, 0);
R_CheckFBO(tr.hdrDepthFbo);
tr.screenSsaoFbo = FBO_Create("_screenssao", tr.screenSsaoImage->width, tr.screenSsaoImage->height);
FBO_Bind(tr.screenSsaoFbo);
FBO_AttachTextureImage(tr.screenSsaoImage, 0);
R_CheckFBO(tr.screenSsaoFbo);
}
if (tr.renderCubeImage)
{
tr.renderCubeFbo = FBO_Create("_renderCubeFbo", tr.renderCubeImage->width, tr.renderCubeImage->height);
FBO_Bind(tr.renderCubeFbo);
//FBO_AttachTextureImage(tr.renderCubeImage, 0);
R_AttachFBOTexture2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB, tr.renderCubeImage->texnum, 0);
glState.currentFBO->colorImage[0] = tr.renderCubeImage;
FBO_CreateBuffer(tr.renderCubeFbo, GL_DEPTH_COMPONENT24_ARB, 0, 0);
R_CheckFBO(tr.renderCubeFbo);
}
GL_CheckErrors();
FBO_Bind(NULL);
}
void Glimp_ClearScreen(void)
{
qglClearColor(0, 0, 0, 1);
qglClear(GL_COLOR_BUFFER_BIT);
ri.GLimp_SwapFrame();
}
/*
=============
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);
}
void idGLDrawableModel::draw(int x, int y, int w, int h) {
if ( !worldModel ) {
return;
}
if ( worldModel->IsDynamicModel() != DM_STATIC ) {
//return;
}
rect.Set( x, y, w, h );
qglViewport(x, y, w, h);
qglScissor(x, y, w, h);
qglMatrixMode(GL_PROJECTION);
qglClearColor( 0.1f, 0.1f, 0.1f, 0.0f );
qglClear(GL_COLOR_BUFFER_BIT);
if (worldDirty) {
//InitWorld();
world->InitFromMap( NULL );
renderLight_t parms;
idDict spawnArgs;
spawnArgs.Set("classname", "light");
spawnArgs.Set("name", "light_1");
spawnArgs.Set("origin", "-128 0 0");
idStr str;
sprintf(str, "%f %f %f", light, light, light);
spawnArgs.Set("_color", str);
gameEdit->ParseSpawnArgsToRenderLight( &spawnArgs, &parms );
lightDef = world->AddLightDef( &parms );
renderEntity_t worldEntity;
memset( &worldEntity, 0, sizeof( worldEntity ) );
spawnArgs.Clear();
spawnArgs.Set("classname", "func_static");
spawnArgs.Set("name", spawnArgs.GetString("model"));
spawnArgs.Set("origin", "0 0 0");
if ( skinStr.Length() ) {
spawnArgs.Set( "skin", skinStr );
}
gameEdit->ParseSpawnArgsToRenderEntity(&spawnArgs, &worldEntity);
worldEntity.hModel = worldModel;
worldEntity.axis = rotation.ToMat3();
worldEntity.shaderParms[0] = 1;
worldEntity.shaderParms[1] = 1;
worldEntity.shaderParms[2] = 1;
worldEntity.shaderParms[3] = 1;
modelDef = world->AddEntityDef( &worldEntity );
worldDirty = false;
}
renderView_t refdef;
// render it
renderSystem->BeginFrame(w, h);
memset( &refdef, 0, sizeof( refdef ) );
refdef.vieworg.Set(zOffset, xOffset, -yOffset);
refdef.viewaxis = idAngles(0,0,0).ToMat3();
refdef.shaderParms[0] = 1;
refdef.shaderParms[1] = 1;
refdef.shaderParms[2] = 1;
refdef.shaderParms[3] = 1;
refdef.width = SCREEN_WIDTH;
refdef.height = SCREEN_HEIGHT;
refdef.fov_x = 90;
refdef.fov_y = 2 * atan((float)h / w) * idMath::M_RAD2DEG;
refdef.time = eventLoop->Milliseconds();
world->RenderScene( &refdef );
int frontEnd, backEnd;
renderSystem->EndFrame( &frontEnd, &backEnd );
qglMatrixMode( GL_MODELVIEW );
qglLoadIdentity();
}
/*
==============
RenderBumpFlat_f
==============
*/
void RenderBumpFlat_f( const idCmdArgs &args ) {
int width, height;
idStr source;
int i;
idBounds bounds;
srfTriangles_t *mesh;
// update the screen as we print
common->SetRefreshOnPrint( true );
width = height = 256;
// check options
for ( i = 1 ; i < args.Argc() - 1; i++ ) {
const char *s;
s = args.Argv( i );
if ( s[0] == '-' ) {
i++;
s = args.Argv( i );
}
if ( !idStr::Icmp( s, "size" ) ) {
if ( i + 2 >= args.Argc() ) {
i = args.Argc();
break;
}
width = atoi( args.Argv( i + 1 ) );
height = atoi( args.Argv( i + 2 ) );
i += 2;
} else {
common->Printf( "WARNING: Unknown option \"%s\"\n", s );
break;
}
}
if ( i != ( args.Argc() - 1 ) ) {
common->Error( "usage: renderBumpFlat [-size width height] asefile" );
return;
}
common->Printf( "Final image size: %i, %i\n", width, height );
// load the source in "fastload" mode, because we don't
// need tangent and shadow information
source = args.Argv( i );
idRenderModel *highPolyModel = renderModelManager->AllocModel();
highPolyModel->PartialInitFromFile( source );
if ( highPolyModel->IsDefaultModel() ) {
common->Error( "failed to load %s", source.c_str() );
}
// combine the high poly model into a single polyset
if ( highPolyModel->NumSurfaces() != 1 ) {
highPolyModel = CombineModelSurfaces( highPolyModel );
}
// create normals if not present in file
const modelSurface_t *surf = highPolyModel->Surface( 0 );
mesh = surf->geometry;
// bound the entire file
R_BoundTriSurf( mesh );
bounds = mesh->bounds;
SaveWindow();
ResizeWindow( width, height );
// for small images, the viewport may be less than the minimum window
qglViewport( 0, 0, width, height );
qglEnable( GL_CULL_FACE );
qglCullFace( GL_FRONT );
qglDisable( GL_STENCIL_TEST );
qglDisable( GL_SCISSOR_TEST );
qglDisable( GL_ALPHA_TEST );
qglDisable( GL_BLEND );
qglEnable( GL_DEPTH_TEST );
qglDisable( GL_TEXTURE_2D );
qglDepthMask( GL_TRUE );
qglDepthFunc( GL_LEQUAL );
qglColor3f( 1, 1, 1 );
qglMatrixMode( GL_PROJECTION );
qglLoadIdentity();
qglOrtho( bounds[0][0], bounds[1][0], bounds[0][2],
bounds[1][2], -( bounds[0][1] - 1 ), -( bounds[1][1] + 1 ) );
qglMatrixMode( GL_MODELVIEW );
qglLoadIdentity();
// flat maps are automatically anti-aliased
idStr filename;
int j, k, c;
byte *buffer;
int *sumBuffer, *colorSumBuffer;
bool flat;
int sample;
sumBuffer = (int *)Mem_Alloc( width * height * 4 * 4 );
memset( sumBuffer, 0, width * height * 4 * 4 );
buffer = (byte *)Mem_Alloc( width * height * 4 );
colorSumBuffer = (int *)Mem_Alloc( width * height * 4 * 4 );
memset( sumBuffer, 0, width * height * 4 * 4 );
flat = false;
//flat = true;
for ( sample = 0 ; sample < 16 ; sample++ ) {
float xOff, yOff;
xOff = ( ( sample & 3 ) / 4.0 ) * ( bounds[1][0] - bounds[0][0] ) / width;
yOff = ( ( sample / 4 ) / 4.0 ) * ( bounds[1][2] - bounds[0][2] ) / height;
for ( int colorPass = 0 ; colorPass < 2 ; colorPass++ ) {
qglClearColor(0.5,0.5,0.5,0);
qglClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
qglBegin( GL_TRIANGLES );
for ( i = 0 ; i < highPolyModel->NumSurfaces() ; i++ ) {
const modelSurface_t *surf = highPolyModel->Surface( i );
mesh = surf->geometry;
if ( colorPass ) {
// just render the surface color for artist visualization
for ( j = 0 ; j < mesh->numIndexes ; j+=3 ) {
for ( k = 0 ; k < 3 ; k++ ) {
int v;
float *a;
v = mesh->indexes[j+k];
qglColor3ubv( mesh->verts[v].color );
a = mesh->verts[v].xyz.ToFloatPtr();
qglVertex3f( a[0] + xOff, a[2] + yOff, a[1] );
}
}
} else {
// render as normal map
// we can either flat shade from the plane,
// or smooth shade from the vertex normals
for ( j = 0 ; j < mesh->numIndexes ; j+=3 ) {
if ( flat ) {
idPlane plane;
idVec3 *a, *b, *c;
int v1, v2, v3;
v1 = mesh->indexes[j+0];
v2 = mesh->indexes[j+1];
v3 = mesh->indexes[j+2];
a = &mesh->verts[ v1 ].xyz;
b = &mesh->verts[ v2 ].xyz;
c = &mesh->verts[ v3 ].xyz;
plane.FromPoints( *a, *b, *c );
// NULLNORMAL is used by the artists to force an area to reflect no
// light at all
if ( surf->shader->GetSurfaceFlags() & SURF_NULLNORMAL ) {
qglColor3f( 0.5, 0.5, 0.5 );
} else {
qglColor3f( 0.5 + 0.5*plane[0], 0.5 - 0.5*plane[2], 0.5 - 0.5*plane[1] );
}
qglVertex3f( (*a)[0] + xOff, (*a)[2] + yOff, (*a)[1] );
qglVertex3f( (*b)[0] + xOff, (*b)[2] + yOff, (*b)[1] );
qglVertex3f( (*c)[0] + xOff, (*c)[2] + yOff, (*c)[1] );
} else {
for ( k = 0 ; k < 3 ; k++ ) {
int v;
float *n;
float *a;
v = mesh->indexes[j+k];
n = mesh->verts[v].normal.ToFloatPtr();
// NULLNORMAL is used by the artists to force an area to reflect no
// light at all
if ( surf->shader->GetSurfaceFlags() & SURF_NULLNORMAL ) {
qglColor3f( 0.5, 0.5, 0.5 );
} else {
// we are going to flip the normal Z direction
qglColor3f( 0.5 + 0.5*n[0], 0.5 - 0.5*n[2], 0.5 - 0.5*n[1] );
}
a = mesh->verts[v].xyz.ToFloatPtr();
qglVertex3f( a[0] + xOff, a[2] + yOff, a[1] );
}
}
}
}
}
qglEnd();
qglFlush();
GLimp_SwapBuffers();
qglReadPixels( 0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE, buffer );
c = width * height;
if ( colorPass ) {
// add to the sum buffer
for ( i = 0 ; i < c ; i++ ) {
colorSumBuffer[i*4+0] += buffer[i*4+0];
colorSumBuffer[i*4+1] += buffer[i*4+1];
colorSumBuffer[i*4+2] += buffer[i*4+2];
colorSumBuffer[i*4+3] += buffer[i*4+3];
}
} else {
// normalize
for ( i = 0 ; i < c ; i++ ) {
idVec3 v;
v[0] = ( buffer[i*4+0] - 128 ) / 127.0;
v[1] = ( buffer[i*4+1] - 128 ) / 127.0;
v[2] = ( buffer[i*4+2] - 128 ) / 127.0;
v.Normalize();
buffer[i*4+0] = 128 + 127 * v[0];
buffer[i*4+1] = 128 + 127 * v[1];
buffer[i*4+2] = 128 + 127 * v[2];
}
// outline into non-drawn areas
for ( i = 0 ; i < 8 ; i++ ) {
OutlineNormalMap( buffer, width, height, 128, 128, 128 );
}
// add to the sum buffer
for ( i = 0 ; i < c ; i++ ) {
sumBuffer[i*4+0] += buffer[i*4+0];
sumBuffer[i*4+1] += buffer[i*4+1];
sumBuffer[i*4+2] += buffer[i*4+2];
sumBuffer[i*4+3] += buffer[i*4+3];
}
}
}
}
c = width * height;
// save out the color map
for ( i = 0 ; i < c ; i++ ) {
buffer[i*4+0] = colorSumBuffer[i*4+0] / 16;
buffer[i*4+1] = colorSumBuffer[i*4+1] / 16;
buffer[i*4+2] = colorSumBuffer[i*4+2] / 16;
buffer[i*4+3] = colorSumBuffer[i*4+3] / 16;
}
filename = source;
filename.StripFileExtension();
filename.Append( "_color.tga" );
R_VerticalFlip( buffer, width, height );
R_WriteTGA( filename, buffer, width, height );
// save out the local map
// scale the sum buffer back down to the sample buffer
// we allow this to denormalize
for ( i = 0 ; i < c ; i++ ) {
buffer[i*4+0] = sumBuffer[i*4+0] / 16;
buffer[i*4+1] = sumBuffer[i*4+1] / 16;
buffer[i*4+2] = sumBuffer[i*4+2] / 16;
buffer[i*4+3] = sumBuffer[i*4+3] / 16;
}
filename = source;
filename.StripFileExtension();
filename.Append( "_local.tga" );
common->Printf( "writing %s (%i,%i)\n", filename.c_str(), width, height );
R_VerticalFlip( buffer, width, height );
R_WriteTGA( filename, buffer, width, height );
// free the model
renderModelManager->FreeModel( highPolyModel );
// free our work buffer
Mem_Free( buffer );
Mem_Free( sumBuffer );
Mem_Free( colorSumBuffer );
RestoreWindow();
// stop updating the screen as we print
common->SetRefreshOnPrint( false );
common->Error( "Completed." );
}
