void HDRStage::postProcess(DrawEnv *pEnv)
{
Window *win = pEnv->getWindow();
if(win->hasExtension(_uiFramebuffer_object_extension) == false)
{
FNOTICE(("Framebuffer objects not supported on Window %p!\n", win));
return;
}
GLDrawBuffersEXTProcT glDrawBuffersEXTProc =
reinterpret_cast<GLDrawBuffersEXTProcT>(
win->getFunction(_uiFuncDrawBuffers));
glColor3f(1.f, 1.f, 1.f);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
HDRStageData *pData = pEnv->getData<HDRStageData *>(_iDataSlotId);
if(pData == NULL)
{
return;
}
if((pData->getWidth () != pEnv->getPixelWidth() ) ||
(pData->getHeight() != pEnv->getPixelHeight()) )
{
resizeStageData(pData,
pEnv->getPixelWidth(),
pEnv->getPixelHeight());
}
// Shrink to w/2 h/2
FrameBufferObject *pShrinkTarget = pData->getShrinkRenderTarget();
ChunkMaterial *pSHM = pData->getShrinkMaterial();
pShrinkTarget->activate(pEnv);
glViewport(0,
0,
pEnv->getPixelWidth () / 2,
pEnv->getPixelHeight() / 2);
State *pShrinkState = pSHM->getState();
pEnv->activateState(pShrinkState, NULL);
glBegin(GL_QUADS);
{
glTexCoord2f(0.00, 0.00);
glVertex2f (0.00, 0.00);
glTexCoord2f(1.00, 0.00);
glVertex2f (1.00, 0.00);
glTexCoord2f(1.00, 1.00);
glVertex2f (1.00, 1.00);
glTexCoord2f(0.00, 1.00);
glVertex2f (0.00, 1.00);
}
glEnd();
pShrinkTarget->deactivate(pEnv);
// Shrink to w/4 h/4
FrameBufferObject *pBlurTarget = pData->getBlurRenderTarget();
pBlurTarget->editMFDrawBuffers()->clear();
pBlurTarget->editMFDrawBuffers()->push_back(GL_COLOR_ATTACHMENT0_EXT);
pBlurTarget->activate(pEnv);
glViewport(0,
0,
pEnv->getPixelWidth () / 4,
pEnv->getPixelHeight() / 4);
ChunkMaterial *pBLM = pData->getBlurMaterial();
State *pBlurState = pBLM->getState();
pEnv->activateState(pBlurState, NULL);
glBegin(GL_QUADS);
{
glTexCoord2f(0.00, 0.00);
glVertex2f (0.00, 0.00);
glTexCoord2f(1.00, 0.00);
glVertex2f (1.00, 0.00);
glTexCoord2f(1.00, 1.00);
glVertex2f (1.00, 1.00);
glTexCoord2f(0.00, 1.00);
glVertex2f (0.00, 1.00);
}
glEnd();
// HBlur
StateOverride oOverride;
GLenum aDrawBuffers[] = { GL_COLOR_ATTACHMENT1_EXT };
oOverride.addOverride(pData->getHBlurShader()->getClassId(),
pData->getHBlurShader());
pEnv->activateState(pBlurState, &oOverride);
glDrawBuffersEXTProc(1, aDrawBuffers);
glBegin(GL_QUADS);
{
glTexCoord2f(0.00, 0.00);
glVertex2f (0.00, 0.00);
glTexCoord2f(1.00, 0.00);
glVertex2f (1.00, 0.00);
glTexCoord2f(1.00, 1.00);
glVertex2f (1.00, 1.00);
glTexCoord2f(0.00, 1.00);
glVertex2f (0.00, 1.00);
}
glEnd();
// VBlur
StateOverride oOverride1;
oOverride1.addOverride(pData->getVBlurShader()->getClassId(),
pData->getVBlurShader());
pEnv->activateState(pBlurState, &oOverride1);
aDrawBuffers[0] = GL_COLOR_ATTACHMENT0_EXT;
glDrawBuffersEXTProc(1, aDrawBuffers);
glBegin(GL_QUADS);
{
glTexCoord2f(0.00, 0.00);
glVertex2f (0.00, 0.00);
glTexCoord2f(1.00, 0.00);
glVertex2f (1.00, 0.00);
glTexCoord2f(1.00, 1.00);
glVertex2f (1.00, 1.00);
glTexCoord2f(0.00, 1.00);
glVertex2f (0.00, 1.00);
}
glEnd();
pBlurTarget->deactivate(pEnv);
// Tonemap pass
glDisable(GL_DEPTH_TEST);
glViewport(pEnv->getPixelLeft (),
pEnv->getPixelBottom(),
pEnv->getPixelWidth (),
pEnv->getPixelHeight());
ChunkMaterial *pTCM = pData->getToneMappingMaterial();
State *pTState = pTCM->getState();
pEnv->activateState(pTState, NULL);
glBegin(GL_QUADS);
{
glTexCoord2f(0.00, 0.00);
glVertex2f (0.00, 0.00);
glTexCoord2f(1.00, 0.00);
glVertex2f (1.00, 0.00);
glTexCoord2f(1.00, 1.00);
glVertex2f (1.00, 1.00);
glTexCoord2f(0.00, 1.00);
glVertex2f (0.00, 1.00);
}
glEnd();
glEnable(GL_DEPTH_TEST);
pEnv->deactivateState();
glPopMatrix();
}
void HDRStage::postProcess(DrawEnv *pEnv)
{
UInt32 uiActiveFBO = pEnv->getActiveFBO();
Window *win = pEnv->getWindow();
if(win->hasExtOrVersion(_uiFramebufferObjectExt, 0x0300, 0x0200) == false)
{
FNOTICE(("Framebuffer objects not supported on Window %p!\n",
static_cast<void *>(win)));
return;
}
OSGGETGLFUNCBYID_GL3( glDrawBuffers,
osgGlDrawBuffers,
_uiFuncDrawBuffers,
win);
glColor3f(1.f, 1.f, 1.f);
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
HDRStageData *pData = pEnv->getData<HDRStageData *>(_iDataSlotId);
if(pData == NULL)
{
return;
}
// Shrink to w/2 h/2
FrameBufferObject *pShrinkTarget = pData->getShrinkRenderTarget();
ChunkMaterial *pSHM = pData->getShrinkMaterial();
pShrinkTarget->activate(pEnv);
glViewport(0,
0,
pEnv->getPixelWidth () / 2,
pEnv->getPixelHeight() / 2);
State *pShrinkState = pSHM->getState();
pEnv->activateState(pShrinkState, NULL);
this->renderQuad();
pShrinkTarget->deactivate(pEnv);
// Shrink to w/4 h/4
FrameBufferObject *pBlurTarget = pData->getBlurRenderTarget();
pBlurTarget->editMFDrawBuffers()->clear();
pBlurTarget->editMFDrawBuffers()->push_back(GL_COLOR_ATTACHMENT0_EXT);
pBlurTarget->activate(pEnv);
glViewport(0,
0,
pEnv->getPixelWidth () / 4,
pEnv->getPixelHeight() / 4);
ChunkMaterial *pBLM = pData->getBlurMaterial();
State *pBlurState = pBLM->getState();
pEnv->activateState(pBlurState, NULL);
this->renderQuad();
GLenum aDrawBuffers[] = { GL_COLOR_ATTACHMENT0_EXT };
// HBlur
pBlurTarget->activate(pEnv);
glViewport(0,
0,
pEnv->getPixelWidth () / 4,
pEnv->getPixelHeight() / 4);
#define OVERSHADER 1
#if OVERSHADER
StateOverride oOverride;
oOverride.addOverride(pData->getHBlurShader()->getClassId(),
pData->getHBlurShader());
pEnv->activateState(pBlurState, &oOverride);
#else
pData->getHBlurShader()->activate(pEnv);
#endif
aDrawBuffers[0] = GL_COLOR_ATTACHMENT1_EXT;
osgGlDrawBuffers(1, aDrawBuffers);
this->renderQuad();
#if !OVERSHADER
pData->getHBlurShader()->deactivate(pEnv);
#endif
// VBlur
#if OVERSHADER
StateOverride oOverride1;
oOverride1.addOverride(pData->getVBlurShader()->getClassId(),
pData->getVBlurShader());
pEnv->activateState(pBlurState, &oOverride1);
#else
pData->getVBlurShader()->activate(pEnv);
#endif
aDrawBuffers[0] = GL_COLOR_ATTACHMENT0_EXT;
osgGlDrawBuffers(1, aDrawBuffers);
this->renderQuad();
#if !OVERSHADER
pData->getVBlurShader()->deactivate(pEnv);
#endif
if(uiActiveFBO == 0)
{
pBlurTarget->deactivate(pEnv);
}
else
{
FrameBufferObject::activateFBOById(pEnv, uiActiveFBO);
}
// Tonemap pass
glDisable(GL_DEPTH_TEST);
glViewport(pEnv->getPixelLeft (),
pEnv->getPixelBottom(),
pEnv->getPixelWidth (),
pEnv->getPixelHeight());
ChunkMaterial *pTCM = pData->getToneMappingMaterial();
State *pTState = pTCM->getState();
pEnv->activateState(pTState, NULL);
this->renderQuad();
glEnable(GL_DEPTH_TEST);
pEnv->deactivateState();
glPopMatrix();
}
