1 files changed, 26 insertions, 0 deletions
diff --git a/shaders/include/color_utils.h b/shaders/include/color_utils.h
new file mode 100644
index 0000000..11c2d9e
--- /dev/null
+++ b/shaders/include/color_utils.h
@@ -0,0 +1,26 @@
+vec3 linear_to_srgb(vec3 color)
+{
+    color = clamp(color, 0.0f, 1.0f);
+     
+    return mix(
+        pow(color, vec3(1.0f / 2.4f)) * 1.055f - 0.055f,
+        color * 12.92f,
+        less_than(color, 0.0031308f)
+    );
+}
+ 
+vec3 srgb_to_linear(vec3 color)
+{
+    color = clamp(color, 0.0f, 1.0f);
+     
+    return mix(
+        pow(((color + 0.055f) / 1.055f), vec3(2.4f)),
+        color / 12.92f,
+        less_than(color, 0.04045f)
+    );
+}
+
+float luminance(vec3 rgb)
+{
+    return dot(rgb, vec3(0.2126f, 0.7152f, 0.0722f));
+}