/*
=================
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;
// 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
}
qglClear( clearBits );
//
// set the modelview matrix for the viewer
//
SetViewportAndScissor();
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_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);
}
}
/*
=================
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 )
{
glFinish();
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;
clearBits |= GL_STENCIL_BUFFER_BIT;
// ydnar: global q3 fog volume
if ( tr.world && tr.world->globalFog >= 0 )
{
clearBits |= GL_DEPTH_BUFFER_BIT;
clearBits |= GL_COLOR_BUFFER_BIT;
//
glClearColor( tr.world->fogs[ tr.world->globalFog ].shader->fogParms.color[ 0 ] * tr.identityLight,
tr.world->fogs[ tr.world->globalFog ].shader->fogParms.color[ 1 ] * tr.identityLight,
tr.world->fogs[ tr.world->globalFog ].shader->fogParms.color[ 2 ] * tr.identityLight, 1.0 );
}
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 )
{
glClearColor( 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 )
{
glClearColor( glfogsettings[ FOG_CURRENT ].color[ 0 ], glfogsettings[ FOG_CURRENT ].color[ 1 ],
glfogsettings[ FOG_CURRENT ].color[ 2 ], glfogsettings[ FOG_CURRENT ].color[ 3 ] );
}
else
{
// glClearColor ( 1.0, 0.0, 0.0, 1.0 ); // red clear for testing portal sky clear
glClearColor( 0.5, 0.5, 0.5, 1.0 );
}
}
else
{
// rendered sky (either clear color or draw quake sky)
if ( glfogsettings[ FOG_PORTALVIEW ].registered )
{
glClearColor( 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;
}
glClearColor( glfogsettings[ FOG_CURRENT ].color[ 0 ], glfogsettings[ FOG_CURRENT ].color[ 1 ],
glfogsettings[ FOG_CURRENT ].color[ 2 ], glfogsettings[ FOG_CURRENT ].color[ 3 ] );
}
else if ( !( r_portalsky->integer ) )
{
// ydnar: portal skies have been manually turned off, clear bg color
clearBits |= GL_COLOR_BUFFER_BIT;
glClearColor( 0.5, 0.5, 0.5, 1.0 );
}
}
}
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
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
glClearColor( glfogsettings[ FOG_CURRENT ].color[ 0 ], glfogsettings[ FOG_CURRENT ].color[ 1 ],
glfogsettings[ FOG_CURRENT ].color[ 2 ], glfogsettings[ FOG_CURRENT ].color[ 3 ] );
}
else
{
// glClearColor ( 0.0, 0.0, 1.0, 1.0 ); // blue clear for testing world sky clear
glClearColor( 0.05, 0.05, 0.05, 1.0 ); // JPW NERVE changed per id req was 0.5s
}
}
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
glClearColor( 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;
}
}
}
}
// ydnar: don't clear the color buffer when no world model is specified
if ( backEnd.refdef.rdflags & RDF_NOWORLDMODEL )
{
clearBits &= ~GL_COLOR_BUFFER_BIT;
}
if ( clearBits )
{
glClear( 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;
}
/*
=================
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);
}
}
/*
=================
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 );
}
}
/*
=================
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 )
{
backEnd.frameViewCount++;
// sync with gl if needed
if ( r_finish->integer == 1 && !glState.finishCalled ) {
glFinish ();
glState.finishCalled = qtrue;
}
if ( r_finish->integer == 0 ) {
glState.finishCalled = qtrue;
}
// we will need to change the projection matrix before drawing
// 2D images again
RB_SetProjection2D( qfalse );
//
// set the modelview matrix for the viewer
//
SetViewportAndScissor();
// ensures that depth writes are enabled for the depth clear
GL_State( GLS_DEFAULT );
glClear( GL_DEPTH_BUFFER_BIT );
if ( ( backEnd.refdef.rdflags & RDF_HYPERSPACE ) )
{
RB_Hyperspace();
return;
}
else
{
backEnd.isHyperspace = qfalse;
}
R_StateForceReset( TSN_Cull ); // 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];
R_StateSetModelViewMatrixCountedRaw( s_flipMatrix );
glClipPlane (GL_CLIP_PLANE0, plane2);
glEnable (GL_CLIP_PLANE0);
} else {
glDisable (GL_CLIP_PLANE0);
}
}