diff options
| author | Vito Caputo <vcaputo@pengaru.com> | 2017-08-08 10:40:14 -0700 |
|---|---|---|
| committer | Vito Caputo <vcaputo@pengaru.com> | 2019-11-13 02:17:54 -0800 |
| commit | 8acb27a788f24f85f38cf4ca45f2c3124128fa26 (patch) | |
| tree | 7b747bb9a50bf3f804ac11e03149dd347839f6fc /src/modules | |
| parent | 448362dcd54c1275ec80d16bcb4d88732f6912f2 (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.
Diffstat (limited to 'src/modules')
| -rw-r--r-- | src/modules/ray/ray.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/modules/ray/ray.c b/src/modules/ray/ray.c index 5a2dd40..c0c067e 100644 --- a/src/modules/ray/ray.c +++ b/src/modules/ray/ray.c @@ -112,7 +112,8 @@ static ray_scene_t scene = { .objects = objects, .lights = lights, .ambient_color = { .x = 1.0f, .y = 1.0f, .z = 1.0f }, - .ambient_brightness = .04f, + .ambient_brightness = .1f, + .gamma = .55f, }; static float r; |