diff --git a/libs/gfx/include/psemek/gfx/effect/blur.hpp b/libs/gfx/include/psemek/gfx/effect/blur.hpp
index f06c67ba..de31ec4a 100644
--- a/libs/gfx/include/psemek/gfx/effect/blur.hpp
+++ b/libs/gfx/include/psemek/gfx/effect/blur.hpp
@@ -10,7 +10,7 @@ namespace psemek::gfx
 
 	struct hblur
 	{
-		hblur(int size, float sigma);
+		hblur(int size, float sigma, float gamma = 1.f);
 		~hblur();
 
 		void invoke(texture_2d const & src, render_target const & dst);
@@ -21,7 +21,7 @@ namespace psemek::gfx
 
 	struct vblur
 	{
-		vblur(int size, float sigma);
+		vblur(int size, float sigma, float gamma = 1.f);
 		~vblur();
 
 		void invoke(texture_2d const & src, render_target const & dst);
diff --git a/libs/gfx/source/effect/blur.cpp b/libs/gfx/source/effect/blur.cpp
index 1db0065c..158ae7c5 100644
--- a/libs/gfx/source/effect/blur.cpp
+++ b/libs/gfx/source/effect/blur.cpp
@@ -45,6 +45,7 @@ const vec2 direction = vec2(@BLUR_DIRECTION@);
 
 uniform sampler2D u_texture;
 uniform vec2 u_inv_texture_size;
+uniform float u_gamma;
 
 in vec2 texcoord;
 
@@ -57,13 +58,13 @@ void main()
 	{
 		vec4 p = texture(u_texture, texcoord + float(i) * direction * u_inv_texture_size);
 		float c = coeffs[i + BLUR_SIZE];
-		result.rgb += p.rgb * p.a * c;
+		result.rgb += pow(p.rgb, vec3(1.0 / u_gamma)) * p.a * c;
 		result.a += p.a * c;
 	}
 	if (result.a == 0.0)
 		out_color = result;
 	else
-		out_color = vec4(result.rgb / result.a, result.a);
+		out_color = vec4(pow(result.rgb / result.a, vec3(u_gamma)), result.a);
 }
 )";
 
@@ -116,11 +117,12 @@ void main()
 		gfx::program program;
 		gfx::array array;
 
-		blur_impl(int size, float sigma, bool horizontal)
+		blur_impl(int size, float sigma, float gamma, bool horizontal)
 			: program(blur_vs, generate_blur_fs_source(size, sigma, horizontal))
 		{
 			program.bind();
 			program["u_texture"] = 0;
+			program["u_gamma"] = gamma;
 		}
 
 		void invoke(texture_2d const & src, render_target const & dst)
@@ -145,8 +147,8 @@ void main()
 		using blur_impl::blur_impl;
 	};
 
-	hblur::hblur(int size, float sigma)
-		: pimpl_{make_impl(size, sigma, true)}
+	hblur::hblur(int size, float sigma, float gamma)
+		: pimpl_{make_impl(size, sigma, gamma, true)}
 	{}
 
 	hblur::~hblur() = default;
@@ -162,8 +164,8 @@ void main()
 		using blur_impl::blur_impl;
 	};
 
-	vblur::vblur(int size, float sigma)
-		: pimpl_{make_impl(size, sigma, false)}
+	vblur::vblur(int size, float sigma, float gamma)
+		: pimpl_{make_impl(size, sigma, gamma, false)}
 	{}
 
 	vblur::~vblur() = default;