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4

First, to preface: the reason it's hard to find details about these hierarchical cluster culling systems because they are a still emerging field, at the very cutting edge of real-time rendering development. Only a handful of games/engines have successfully shipped something like this, and mostly not open source (UE5 being a recent exception). It is an area ...


3

Found a solution—it may not be strictly accurate for 2D, but it produces the look that I’m after. “Linear Light Shading with Linearly Transformed Cosines”, in section 1.3, describes a closed-form solution to this integral; transforming the line’s endpoints into a space local to the surface and then running them through the I_diffuse_line function from ...


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