Gamma correction corrected....

core/math.jai

@@ -42,13 +42,6 @@ Vector3i :: struct {
     z: int;
 }
 
-Color :: #type,isa Vector4;
-
-Colored_Vert :: struct {
-    position: Vector2;
-    color   : Color;
-}
-
 AABB :: struct {
     min: Vector3 = .{FLOAT32_INFINITY, FLOAT32_INFINITY, FLOAT32_INFINITY};
     max: Vector3 = .{-FLOAT32_INFINITY, -FLOAT32_INFINITY, -FLOAT32_INFINITY};
@@ -423,6 +416,60 @@ ease_in_out_sine :: (x: float) -> float {
     return -(cos(PI * x) - 1.0) * 0.5;
 }
 
+// Color
+Color :: #type,isa Vector4;
+
+Colored_Vert :: struct {
+    position: Vector2;
+    color   : Color;
+}
+
+linear_to_srgb :: (c: float) -> float {
+    if (c <= 0.0031308)
+        return 12.92 * c;
+    else
+        return 1.055 * pow(c, 1.0 / 2.4) - 0.055;
+}
+
+linear_to_srgb :: (c: Vector3) -> Vector3 {
+    return Vector3.{
+        linear_to_srgb(c.x),
+        linear_to_srgb(c.y),
+        linear_to_srgb(c.z)
+    };
+}
+
+linear_to_srgb :: (c: $T) -> T {
+    srgb_color := c;
+    srgb_color.x = linear_to_srgb(c.x);
+    srgb_color.y = linear_to_srgb(c.y);
+    srgb_color.z = linear_to_srgb(c.z);
+    return srgb_color;
+}
+
+srgb_to_linear :: (c: float) -> float {
+    if c <= 0.04045
+        return c / 12.92;
+    else
+        return pow((c + 0.055) / 1.055, 2.4);
+}
+
+srgb_to_linear :: (c: Vector3) -> Vector3 {
+    return float3(
+        srgbToLinear(c.r),
+        srgbToLinear(c.g),
+        srgbToLinear(c.b)
+    );
+}
+
+srgb_to_linear :: (c: $T) -> T {
+    linear_color := c;
+    linear_color.x = srgb_to_linear(c.x);
+    linear_color.y = srgb_to_linear(c.y);
+    linear_color.z = srgb_to_linear(c.z);
+    return linear_color;
+}
+
 #import "PCG";
 #import "Math";
 #load "frustum.jai";