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Allow rendering with bloom to a user provided render target (untested) (#43)

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This commit is contained in:
kaetemi 2013-06-17 00:45:17 +02:00
parent 968e0579fe
commit 23e3393d2e
2 changed files with 51 additions and 25 deletions
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5
code/nel/include/nel/3d/bloom_effect.h
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@ -83,6 +83,7 @@ public:
// If window size exceeds 256*256 the textures used to apply blur are reinitialized with
// 256*256 size. If a dimension is less than 256, the texture is initialized with the nearer
// power of 2, lower than this window dimension.
void initBloom(UTexture &renderTarget);
void initBloom();
// Called at the end of renderAll method in the main loop, recover stretched texture, apply
@ -131,13 +132,15 @@ private:
uint8 _DensityBloom;
// render target textures
// used to display scene
// used to display scene (FIXME: redundant when user render target provided...)
NLMISC::CSmartPtr<NL3D::ITexture> _InitText;
// used as stretched texture from _InitText, as displayed texture in first blur pass,
// and as render target in second blur pass.
NLMISC::CSmartPtr<NL3D::ITexture> _BlurFinalTex;
// used as render target in first blur pass, and as displayed texture on second blur pass.
NLMISC::CSmartPtr<NL3D::ITexture> _BlurHorizontalTex;
/// User provided render target.
NLMISC::CSmartPtr<NL3D::ITexture> m_UserRenderTarget;
// materials

71
code/nel/src/3d/bloom_effect.cpp
View file

@ -271,11 +271,19 @@ void CBloomEffect::initTexture(CSmartPtr<ITexture> & tex, bool isMode2D, uint32
//-----------------------------------------------------------------------------------------------------------
void CBloomEffect::initBloom() // clientcfg
void CBloomEffect::initBloom()
{
CTextureUser cu;
initBloom(cu);
}
void CBloomEffect::initBloom(UTexture &renderTarget) // clientcfg
{
if(!((CDriverUser *)_Driver)->getDriver()->supportBloomEffect())
return;
m_UserRenderTarget = dynamic_cast<CTextureUser &>(renderTarget).getITexture();
// don't activate bloom when PolygonMode is different from Filled
if (_Driver->getPolygonMode() != UDriver::Filled) return;
@ -348,14 +356,25 @@ void CBloomEffect::initBloom() // clientcfg
_DisplaySquareBlurMat.getObjectPtr()->setTexture(1, _BlurFinalTex);
}
}
// For now the user target must be the window size
// to be compatible with the existing code.
// TODO: Instead, if user render target is provided,
// assume the size of the user render target as
// the screen size to be used.
if (m_UserRenderTarget.getPtr())
{
nlassert(_WndWidth == m_UserRenderTarget->getWidth());
nlassert(_WndHeight == m_UserRenderTarget->getHeight());
_DisplayInitMat.getObjectPtr()->setTexture(0, m_UserRenderTarget);
}
NL3D::CTextureUser *txt = (_InitBloomEffect) ? (new CTextureUser(_InitText)) : (new CTextureUser());
if(!((CDriverUser *) _Driver)->setRenderTarget(*txt, 0, 0, _WndWidth, _WndHeight))
NL3D::CTextureUser txt = (_InitBloomEffect) ? (CTextureUser(m_UserRenderTarget.getPtr() ? m_UserRenderTarget : _InitText)) : (CTextureUser());
if(!((CDriverUser *) _Driver)->setRenderTarget(txt, 0, 0, _WndWidth, _WndHeight))
{
nlwarning("setRenderTarget return false with initial texture for bloom effect\n");
return;
}
delete txt;
}
//-----------------------------------------------------------------------------------------------------------
@ -371,13 +390,13 @@ void CBloomEffect::endBloom() // clientcfg
if(_Driver->getWindowWidth()==0 || _Driver->getWindowHeight()==0)
return;
CTextureUser *txt1 = (_InitBloomEffect) ? (new CTextureUser(_InitText)) : (new CTextureUser());
CTextureUser *txt2 = new CTextureUser(_BlurFinalTex);
CRect *rect1 = new CRect(0, 0, _WndWidth, _WndHeight);
CRect *rect2 = new CRect(0, 0, _BlurWidth, _BlurHeight);
CTextureUser txt1 = (_InitBloomEffect) ? (CTextureUser(m_UserRenderTarget.getPtr() ? m_UserRenderTarget : _InitText)) : (CTextureUser());
CTextureUser txt2(_BlurFinalTex);
CRect rect1(0, 0, _WndWidth, _WndHeight);
CRect rect2(0, 0, _BlurWidth, _BlurHeight);
// stretch rect
((CDriverUser *) _Driver)->stretchRect(_Scene, *txt1 , *rect1,
*txt2, *rect2);
((CDriverUser *) _Driver)->stretchRect(_Scene, txt1 , rect1,
txt2, rect2);
// horizontal blur pass
doBlur(true);
@ -387,10 +406,6 @@ void CBloomEffect::endBloom() // clientcfg
// apply blur with a blend operation
applyBlur();
delete txt1;
delete txt2;
delete rect1;
delete rect2;
}
//-----------------------------------------------------------------------------------------------------------
@ -402,13 +417,12 @@ void CBloomEffect::applyBlur()
// in opengl, display in init texture
if(_InitBloomEffect)
{
CTextureUser *txt = new CTextureUser(_InitText);
if(!((CDriverUser *) _Driver)->setRenderTarget(*txt, 0, 0, _WndWidth, _WndHeight))
CTextureUser txt(m_UserRenderTarget.getPtr() ? m_UserRenderTarget : _InitText);
if(!((CDriverUser *) _Driver)->setRenderTarget(txt, 0, 0, _WndWidth, _WndHeight))
{
nlwarning("setRenderTarget return false with initial texture for bloom effect\n");
return;
}
delete txt;
}
// display blur texture
@ -463,7 +477,9 @@ void CBloomEffect::applyBlur()
void CBloomEffect::endInterfacesDisplayBloom() // clientcfg
{
if(_InitBloomEffect)
// Render from render target to screen if necessary.
// Don't do this when the blend was done to the screen or when rendering to a user provided rendertarget.
if (_InitBloomEffect && m_UserRenderTarget.isNull())
{
if(!_Driver->supportBloomEffect() || !_Init)
return;
@ -496,6 +512,15 @@ void CBloomEffect::endInterfacesDisplayBloom() // clientcfg
_Driver->drawQuad(_DisplayQuad, _DisplayInitMat);
_Driver->setMatrixMode3D(pCam);
}
if (m_UserRenderTarget.getPtr())
{
if (_InitBloomEffect)
{
_DisplayInitMat.getObjectPtr()->setTexture(0, _InitText);
}
m_UserRenderTarget = NULL;
}
}
@ -522,14 +547,13 @@ void CBloomEffect::doBlur(bool horizontalBlur)
}
NL3D::IDriver *drvInternal = ((CDriverUser *) _Driver)->getDriver();
CTextureUser *txt = new CTextureUser(endTexture);
CTextureUser txt(endTexture);
// initialize render target
if(!((CDriverUser *) _Driver)->setRenderTarget(*txt, 0, 0, _BlurWidth, _BlurHeight))
if(!((CDriverUser *) _Driver)->setRenderTarget(txt, 0, 0, _BlurWidth, _BlurHeight))
{
nlwarning("setRenderTarget return false with blur texture for bloom effect\n");
return;
}
delete txt;
// initialize vertex program
drvInternal->activeVertexProgram(&TextureOffsetVertexProgram);
@ -578,10 +602,9 @@ void CBloomEffect::doBlur(bool horizontalBlur)
// disable render target and vertex program
drvInternal->activeVertexProgram(NULL);
txt = new CTextureUser();
((CDriverUser *)_Driver)->setRenderTarget(*txt, 0, 0, 0, 0);
CTextureUser cu;
((CDriverUser *)_Driver)->setRenderTarget(cu, 0, 0, 0, 0);
_Driver->setMatrixMode3D(pCam);
delete txt;
}
}; // NL3D