diff --git a/src/gl/renderer/gl_postprocess.cpp b/src/gl/renderer/gl_postprocess.cpp
index 92dd0bc80a..efc9e19111 100644
--- a/src/gl/renderer/gl_postprocess.cpp
+++ b/src/gl/renderer/gl_postprocess.cpp
@@ -866,7 +866,7 @@ void FGLRenderer::DrawPresentTexture(const GL_IRECT &box, bool applyGamma)
 		mPresentShader->InvGamma.Set(1.0f / clamp<float>(Gamma, 0.1f, 4.f));
 		mPresentShader->Contrast.Set(clamp<float>(vid_contrast, 0.1f, 3.f));
 		mPresentShader->Brightness.Set(clamp<float>(vid_brightness, -0.8f, 0.8f));
-		mPresentShader->Saturation.Set(clamp<float>(vid_saturation, -3.0f, 3.f));
+		mPresentShader->Saturation.Set(clamp<float>(vid_saturation, -15.0f, 15.f));
 	}
 	mPresentShader->Scale.Set(mScreenViewport.width / (float)mBuffers->GetWidth(), mScreenViewport.height / (float)mBuffers->GetHeight());
 	RenderScreenQuad();
diff --git a/src/gl/stereo3d/gl_interleaved3d.cpp b/src/gl/stereo3d/gl_interleaved3d.cpp
index 686802e6a3..a499f6e0e6 100644
--- a/src/gl/stereo3d/gl_interleaved3d.cpp
+++ b/src/gl/stereo3d/gl_interleaved3d.cpp
@@ -107,7 +107,7 @@ static void prepareInterleavedPresent(FPresentStereoShaderBase& shader)
 		shader.InvGamma.Set(1.0f / clamp<float>(Gamma, 0.1f, 4.f));
 		shader.Contrast.Set(clamp<float>(vid_contrast, 0.1f, 3.f));
 		shader.Brightness.Set(clamp<float>(vid_brightness, -0.8f, 0.8f));
-		shader.Saturation.Set(clamp<float>(vid_saturation, -3.0f, 3.0f));
+		shader.Saturation.Set(clamp<float>(vid_saturation, -15.0f, 15.0f));
 	}
 	shader.Scale.Set(
 		GLRenderer->mScreenViewport.width / (float)GLRenderer->mBuffers->GetWidth(),
diff --git a/wadsrc/static/language.enu b/wadsrc/static/language.enu
index e07f4bf7d7..bb428fa601 100644
--- a/wadsrc/static/language.enu
+++ b/wadsrc/static/language.enu
@@ -2657,7 +2657,8 @@ MUSIC_DM2INT = "dm2int";
 DSPLYMNU_GLOPT		= "OpenGL Renderer";
 DSPLYMNU_SWOPT		= "Software Renderer";
 DSPLYMNU_GAMMA		= "Gamma correction";
-DSPLYMNU_CONTRAST 	="Contrast";
+DSPLYMNU_CONTRAST 	= "Contrast";
+DSPLYMNU_SATURATION = "Saturation";
 DSPLYMNU_HWGAMMA	= "Hardware Gamma";
 
 // OpenGL Options
diff --git a/wadsrc/static/menudef.txt b/wadsrc/static/menudef.txt
index a7e6cc4e95..e6183c15c2 100644
--- a/wadsrc/static/menudef.txt
+++ b/wadsrc/static/menudef.txt
@@ -734,14 +734,15 @@ OptionMenu "VideoOptions" protected
 	
 	Submenu "$DSPLYMNU_GLOPT", 			"OpenGLOptions"
 	Submenu "$DSPLYMNU_SWOPT", 			"SWROptions"
-	Submenu "$GLMNU_DYNLIGHT",	"GLLightOptions"
+	Submenu "$GLMNU_DYNLIGHT",			"GLLightOptions"
 	Submenu "$DSPLYMNU_SCOREBOARD", 			"ScoreboardOptions"
 	StaticText " "
-	Slider "$DSPLYMNU_SCREENSIZE",				"screenblocks", 3.0, 12.0, 1.0, 0
+	Slider "$DSPLYMNU_SCREENSIZE",				"screenblocks", 				3.0, 12.0, 1.0, 0
 
-	Slider "$DSPLYMNU_GAMMA",			"Gamma",						0.75, 3.0, 0.05, 2
+	Slider "$DSPLYMNU_GAMMA",					"Gamma",						0.75, 3.0, 0.05, 2
 	Slider "$DSPLYMNU_BRIGHTNESS",				"vid_brightness",				-0.8,0.8, 0.05,2
-	Slider "$DSPLYMNU_CONTRAST",					"vid_contrast",	   				0.1, 3.0, 0.1
+	Slider "$DSPLYMNU_CONTRAST",				"vid_contrast",	   				0.1, 3.0, 0.1
+	Slider "$DSPLYMNU_SATURATION",				"vid_saturation",  				-3.0, 3.0, 0.25
 	Option "$DSPLYMNU_HWGAMMA",					"vid_hwgamma", "HWGammaModes"
 
 	Option "$DSPLYMNU_VSYNC",					"vid_vsync", "OnOff"
diff --git a/wadsrc/static/shaders/glsl/present.fp b/wadsrc/static/shaders/glsl/present.fp
index 3683d6bd15..9a53e0eb53 100644
--- a/wadsrc/static/shaders/glsl/present.fp
+++ b/wadsrc/static/shaders/glsl/present.fp
@@ -10,7 +10,11 @@ uniform float Saturation;
 
 vec4 ApplyGamma(vec4 c)
 {
-	vec3 valgray = (0.3 * c.r + 0.59 * c.g + 0.11 * c.b) * (1 - Saturation) + c.rgb * Saturation;
+	vec3 valgray;
+	if (Saturation != 1.0) // attempt to cool things a bit, this calculation makes the GPU run really hot
+		valgray = (0.3 * c.r + 0.59 * c.g + 0.11 * c.b) * (1 - Saturation) + c.rgb * Saturation;
+	else
+		valgray = c.rgb;
 	vec3 val = valgray * Contrast - (Contrast - 1.0) * 0.5;
 	val += Brightness * 0.5;
 	val = pow(max(val, vec3(0.0)), vec3(InvGamma));