diff --git a/orx-fx/src/main/kotlin/color/ColorCorrection.kt b/orx-fx/src/main/kotlin/color/ColorCorrection.kt
index 4467f37a..eb86c2c5 100644
--- a/orx-fx/src/main/kotlin/color/ColorCorrection.kt
+++ b/orx-fx/src/main/kotlin/color/ColorCorrection.kt
@@ -19,10 +19,18 @@ class ColorCorrection : Filter(Shader.createFromCode(filterVertexCode, filterFra
     @DoubleParameter("hue shift", -180.0, 180.0, order = 3)
     var hueShift: Double by parameters
 
+    @DoubleParameter("gamma", 0.0, 5.0, order = 4)
+    var gamma: Double by parameters
+
+    @DoubleParameter("opacity", 0.0, 1.0, order = 5)
+    var opacity: Double by parameters
+
     init {
         contrast = 0.0
         brightness = 0.0
         saturation = 0.0
         hueShift = 0.0
+        gamma = 1.0
+        opacity = 1.0
     }
 }
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diff --git a/orx-fx/src/main/resources/org/openrndr/extra/fx/gl3/color/color-correction.frag b/orx-fx/src/main/resources/org/openrndr/extra/fx/gl3/color/color-correction.frag
index 6b48e502..bbf51acf 100644
--- a/orx-fx/src/main/resources/org/openrndr/extra/fx/gl3/color/color-correction.frag
+++ b/orx-fx/src/main/resources/org/openrndr/extra/fx/gl3/color/color-correction.frag
@@ -6,6 +6,8 @@ uniform float brightness;
 uniform float saturation;
 uniform float contrast;
 uniform float hueShift;
+uniform float gamma;
+uniform float opacity;
 
 uniform sampler2D tex0;
 in vec2 v_texCoord0;
@@ -56,7 +58,8 @@ vec3 shiftHue(in vec3 col, in float Shift) {
 void main() {
     vec4 color = texture(tex0, v_texCoord0);
     vec4 nc = (color.a == 0.0) ? vec4(0.0) : vec4(color.rgb / color.a, color.a);
+    nc.rgb = pow(nc.rgb, vec3(gamma));
     nc.rgb = shiftHue(nc.rgb, (hueShift/360.0));
     vec4 cc = brightnessMatrix(brightness) * contrastMatrix((contrast + 1)) * saturationMatrix(saturation + 1) * nc;
-    o_color = vec4(cc.rgb, 1.0) * color.a;
+    o_color = vec4(cc.rgb, 1.0) * color.a * opacity;
 }
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