[osg-users] HDR Skybox

Rob rchadwic at gmail.com
Tue Mar 31 08:25:14 PDT 2009


Can anyone help me with loading 6 hdr images into a cubic texture? The code below seems to work, but the images are sort of crazy anywhere the value of the colors is greater than one. I'm guessing that somehow I'm messing up the pixel format, but I can't figure it out. 


Code:

	osg::TextureCubeMap* mTexture;
	osg::Image* mImage00 = ODTWTextureManager::GetPtr()->ReadImageFile(name + "_c00" + type);
	osg::Image* mImage01 = ODTWTextureManager::GetPtr()->ReadImageFile(name + "_c01" + type);
	osg::Image* mImage02 = ODTWTextureManager::GetPtr()->ReadImageFile(name + "_c02" + type);
	osg::Image* mImage03 = ODTWTextureManager::GetPtr()->ReadImageFile(name + "_c03" + type);
	osg::Image* mImage04 = ODTWTextureManager::GetPtr()->ReadImageFile(name + "_c04" + type);
	osg::Image* mImage05 = ODTWTextureManager::GetPtr()->ReadImageFile(name + "_c05" + type);
	cout << " Image 5 format: " << mImage05->getInternalTextureFormat() << endl;

	mTexture = new osg::TextureCubeMap();
	mTexture->setClientStorageHint(true);
	mTexture->setImage(osg::TextureCubeMap::POSITIVE_X,mImage00);
	mTexture->setImage(osg::TextureCubeMap::NEGATIVE_X,mImage01);
	mTexture->setImage(osg::TextureCubeMap::POSITIVE_Y,mImage02);
	mTexture->setImage(osg::TextureCubeMap::NEGATIVE_Y,mImage03);
	mTexture->setImage(osg::TextureCubeMap::POSITIVE_Z,mImage04);
	mTexture->setImage(osg::TextureCubeMap::NEGATIVE_Z,mImage05);
	cout << " Cube format: " << mImage05->getInternalTextureFormat() << endl;

	
	mTexture->setWrap(osg::Texture2D::WRAP_S,osg::Texture2D::CLAMP_TO_EDGE);
    mTexture->setWrap(osg::Texture2D::WRAP_T,osg::Texture2D::CLAMP_TO_EDGE);

	osg::Uniform* mUniform = new osg::Uniform(inSampler.c_str(),inTexunit);
	mCurrentMaterial->addUniform(mUniform); 

	mCurrentMaterial->setTextureAttributeAndModes(inTexunit,mTexture);




thanks!

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