OgreRTTexture::OgreRTTexture(Ogre::TexturePtr _texture) :
		mViewport(nullptr),
		mSaveViewport(nullptr),
		mTexture(_texture)
	{
		mProjectMatrix = Ogre::Matrix4::IDENTITY;
		Ogre::Root* root = Ogre::Root::getSingletonPtr();
		if (root != nullptr)
		{
			Ogre::RenderSystem* system = root->getRenderSystem();
			if (system != nullptr)
			{
				size_t width = mTexture->getWidth();
				size_t height = mTexture->getHeight();

				mRenderTargetInfo.maximumDepth = system->getMaximumDepthInputValue();
				mRenderTargetInfo.hOffset = system->getHorizontalTexelOffset() / float(width);
				mRenderTargetInfo.vOffset = system->getVerticalTexelOffset() / float(height);
				mRenderTargetInfo.aspectCoef = float(height) / float(width);
				mRenderTargetInfo.pixScaleX = 1.0f / float(width);
				mRenderTargetInfo.pixScaleY = 1.0f / float(height);
			}

			if (mTexture->getBuffer()->getRenderTarget()->requiresTextureFlipping())
			{
				mProjectMatrix[1][0] = -mProjectMatrix[1][0];
				mProjectMatrix[1][1] = -mProjectMatrix[1][1];
				mProjectMatrix[1][2] = -mProjectMatrix[1][2];
				mProjectMatrix[1][3] = -mProjectMatrix[1][3];
			}
		}
	}
Example #2
0
 void updateRenderInfo()
 {
     if (mRenderSystem != nullptr)
     {
         mInfo.maximumDepth = mRenderSystem->getMaximumDepthInputValue();
         mInfo.hOffset = mRenderSystem->getHorizontalTexelOffset() / float(mViewSize.width);
         mInfo.vOffset = mRenderSystem->getVerticalTexelOffset() / float(mViewSize.height);
         mInfo.aspectCoef = float(mViewSize.height) / float(mViewSize.width);
         mInfo.pixScaleX = 1.0f / float(mViewSize.width);
         mInfo.pixScaleY = 1.0f / float(mViewSize.height);
     }
 }