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#Actualluca-deltodesco

Posted 26 September 2012 - 02:10 PM

(This is my understanding)

Volume density approach means that you're not necessarigly looking for intersections with rays against individual hair strands, but against an adaptive iso-surface, you terminate when the distance from the ray point to the hair is within a given tolerance, and that tolerance can be adapted based on distance from the camera so that aliasing, and need for super-sampling is decreased. (Aka as distance increases from camera, you can increase the tolerance so that the distance from ray to the hair strand remains roughly constant in screen space)

#1luca-deltodesco

Posted 26 September 2012 - 02:09 PM

(This is my understanding)

Volume density approach means that you're not necessarigly looking for intersections with rays against individual hair strands, but against an adaptive iso-surface, you terminate when the distance from the ray point to the hair is within a given tolerance, and that tolerance can be adapted based on distance from the camera so that aliasing, and need for super-sampling is decreased. (Aka hair implicitly get's 'thicker' as it get's closer to camera as it does so in screen space)

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