PBR n00b question: What’s an appropriate L vector when doing split-sum IBL with no analytical lights?
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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Specular reflection direction, possibly bent towards the normal depending on surface roughness.
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https://seblagarde.files.wordpress.com/2015/07/course_notes_moving_frostbite_to_pbr_v32.pdf … has a reasonably useful overview.
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Good stuff, thanks for sharing!
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