Reverted linear conversion on shaderbumpLUS130425

1 files changed, 13 insertions, 2 deletions

diff --git a/port/shaders/metal/default.shader.metal b/port/shaders/metal/default.shader.metal
index a771ba10..63d89fd3 100644
--- a/port/shaders/metal/default.shader.metal
+++ b/port/shaders/metal/default.shader.metal
@@ -147,6 +147,17 @@ float random(float3 value) {
     return fract(sin(random) * 143758.5453);
 }
 
+float4 fromLinear(float4 linearRGB) {
+    float3 threshold = float3(0.0031308);
+    float3 gamma = float3(1.0 / 2.4);
+    float3 scale = float3(12.92);
+    float3 offset = float3(1.055);
+    float3 subtract = float3(0.055);
+    float3 higher = offset * fast::pow(linearRGB.xyz, gamma) - subtract;
+    float3 lower = linearRGB.xyz * scale;
+    return float4(select(higher, lower, linearRGB.xyz < threshold), linearRGB.w);
+}
+
 fragment float4 fragmentShader(ProjectedVertex in [[stage_in]], constant FrameUniforms &frameUniforms [[buffer(0)]]
 @if(o_textures[0])
     , texture2d<float> uTex0 [[texture(0)]], sampler uTex0Smplr [[sampler(0)]]
@@ -277,8 +288,8 @@ fragment float4 fragmentShader(ProjectedVertex in [[stage_in]], constant FrameUn
         @if(o_invisible)
             texel.w = 0.0;
         @end
-        return texel;
+        return fromLinear(texel);
     @else
-        return float4(texel, 1.0);
+        return fromLinear(float4(texel, 1.0));
     @end
 }
\ No newline at end of file