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Core implementation of Physical Based Rendering.

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This commit is contained in:
Areloch 2018-09-15 20:19:57 -05:00
parent 54f1d8c18e
commit b4a1d18f42
148 changed files with 4464 additions and 1016 deletions
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42
Engine/source/gfx/gl/gfxGLOcclusionQuery.cpp
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@ -25,7 +25,9 @@
#include "gfx/gl/tGL/tGL.h"
GFXGLOcclusionQuery::GFXGLOcclusionQuery(GFXDevice* device) :
GFXOcclusionQuery(device), mQuery(-1)
GFXOcclusionQuery(device),
mQuery(-1),
mTesting(false)
{
}
@ -37,16 +39,29 @@ GFXGLOcclusionQuery::~GFXGLOcclusionQuery()
bool GFXGLOcclusionQuery::begin()
{
if(mQuery == -1)
if (GFXDevice::getDisableOcclusionQuery())
return true;
if (!glIsQuery(mQuery))
glGenQueries(1, &mQuery);
glBeginQuery(GL_SAMPLES_PASSED, mQuery);
if (!mTesting)
{
glBeginQuery(GL_SAMPLES_PASSED, mQuery);
mTesting = true;
}
return true;
}
void GFXGLOcclusionQuery::end()
{
if (GFXDevice::getDisableOcclusionQuery())
return;
if (!glIsQuery(mQuery))
return;
glEndQuery(GL_SAMPLES_PASSED);
mTesting = false;
}
GFXOcclusionQuery::OcclusionQueryStatus GFXGLOcclusionQuery::getStatus(bool block, U32* data)
@ -55,16 +70,33 @@ GFXOcclusionQuery::OcclusionQueryStatus GFXGLOcclusionQuery::getStatus(bool bloc
// then your system is GPU bound.
PROFILE_SCOPE(GFXGLOcclusionQuery_getStatus);
if(mQuery == -1)
if (GFXDevice::getDisableOcclusionQuery())
return NotOccluded;
if (!glIsQuery(mQuery))
return NotOccluded;
GLint numPixels = 0;
GLint queryDone = false;
if (block)
queryDone = true;
{
while (!queryDone)
{
//If we're stalled out, proceed with worst-case scenario -BJR
if (GFX->mFrameTime->getElapsedMs()>4)
{
this->begin();
this->end();
return NotOccluded;
}
glGetQueryObjectiv(mQuery, GL_QUERY_RESULT_AVAILABLE, &queryDone);
}
}
else
{
glGetQueryObjectiv(mQuery, GL_QUERY_RESULT_AVAILABLE, &queryDone);
}
if (queryDone)
glGetQueryObjectiv(mQuery, GL_QUERY_RESULT, &numPixels);