2. Do a depth render with additive blending, clockwise polygon culling.
3. Subtract 1 from 2 (or 2 from 1, whichever works), and you get precisely how much that pixel is "inside" the volumetric in question.
January 16, 2010
Volumetric Rendering in Realtime
1. Do a depth render with additive blending, counterclockwise polygon culling
2. Do a depth render with additive blending, clockwise polygon culling.
3. Subtract 1 from 2 (or 2 from 1, whichever works), and you get precisely how much that pixel is "inside" the volumetric in question.
2. Do a depth render with additive blending, clockwise polygon culling.
3. Subtract 1 from 2 (or 2 from 1, whichever works), and you get precisely how much that pixel is "inside" the volumetric in question.
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