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render/vulkan: correct sRBG gamma expansion in shader

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(cherry picked from commit 5ae8ce807a)
This commit is contained in:
Félix Poisot 2024-01-23 19:54:22 +00:00 • committed by Simon Zeni
parent 108be5ef47
commit e3760fb1b7
1 changed files with 3 additions and 1 deletions
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4
render/vulkan/shaders/texture.frag
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@ -16,7 +16,9 @@ layout (constant_id = 0) const int TEXTURE_TRANSFORM = 0;
#define TEXTURE_TRANSFORM_SRGB 1 #define TEXTURE_TRANSFORM_SRGB 1
float srgb_channel_to_linear(float x) { float srgb_channel_to_linear(float x) {
return max(x / 12.92, pow((x + 0.055) / 1.055, 2.4)); return mix(x / 12.92,
pow((x + 0.055) / 1.055, 2.4),
x > 0.04045);
} }
vec4 srgb_color_to_linear(vec4 color) { vec4 srgb_color_to_linear(vec4 color) {