1 files changed, 15 insertions, 0 deletions
diff --git a/indra/newview/app_settings/shaders/class2/windlight/gammaF.glsl b/indra/newview/app_settings/shaders/class2/windlight/gammaF.glsl
index 68db7fcbb1..a32a572461 100644
--- a/indra/newview/app_settings/shaders/class2/windlight/gammaF.glsl
+++ b/indra/newview/app_settings/shaders/class2/windlight/gammaF.glsl
@@ -28,6 +28,21 @@ uniform int no_atmo;
 vec3 getAtmosAttenuation();
 vec3 getAdditiveColor();
 
+vec3 srgb_to_linear(vec3 col);
+vec3 linear_to_srgb(vec3 col);
+
+vec3 scaleSoftClipFragLinear(vec3 light)
+{ // identical to non-linear version and that's probably close enough
+    if (no_atmo == 1)
+    {
+        return light;
+    }
+    //soft clip effect:
+    light = 1. - clamp(light, vec3(0.), vec3(1.));
+    light = 1. - pow(light, vec3(gamma)); // s/b inverted already CPU-side
+    return light;
+}
+
 vec3 scaleSoftClipFrag(vec3 light)
 {
     if (no_atmo == 1)