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authorVito Caputo <vcaputo@pengaru.com>2017-08-08 10:40:14 -0700
committerVito Caputo <vcaputo@pengaru.com>2019-11-13 02:17:54 -0800
commit8acb27a788f24f85f38cf4ca45f2c3124128fa26 (patch)
tree7b747bb9a50bf3f804ac11e03149dd347839f6fc /src/libs/ray/ray_object_point.h
parent448362dcd54c1275ec80d16bcb4d88732f6912f2 (diff)
ray: add rudimentary gamma correction
color banding has been quite visible, and somewhat expected with a direct conversion from the linear float color space to the 8-bit integral rgb color components. A simple lookup table is used here to non-linearly map the values, table generation is taken from Greg Ward's REAL PIXELS gem in Graphics Gems II.
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