How exactly is the tile sort implemented for the programmable pipeline? For the fixed pipeline, the screen space bounding box can be calculated using the modelview and projection matrices. However, the vertex shader is free to move the vertex anywhere regardless of the modelview matrix. How is the screen space bounding box calculated in that case?
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Hello,
How exactly is the tile sort implemented for the programmable pipeline? For the fixed pipeline, the screen space bounding box can be calculated using the modelview and projection matrices. However, the vertex shader is free to move the vertex anywhere regardless of the modelview matrix. How is the screen space bounding box calculated in that case?