[osg-users] Understanding osg::CulingSet::pixelSize() and computePixelSizeVector()

[白杨]

Hi Folks,

I am tring to understand a parameter in the function
osg::CullintSet::pixelSize, _pixelSizeVector. It is computed by the function
osg::CullingSet:: computePixelSizeVector(W, P, M). Could you please explain what mathematical methods it is according to?
And especially, what these parameters following are meaning, P00, P20_00, scale_00, P23, P33?


Thanks a lot.
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