diff --git a/src/v_framebuffer.cpp b/src/v_framebuffer.cpp
index 43204c8be..722596c35 100644
--- a/src/v_framebuffer.cpp
+++ b/src/v_framebuffer.cpp
@@ -305,31 +305,6 @@ void DFrameBuffer::InitPalette()
 	UpdatePalette();
 }
 
-//==========================================================================
-//
-//
-//
-//==========================================================================
-
-void DFrameBuffer::BuildGammaTable(uint16_t *gammaTable)
-{
-	float gamma = clamp<float>(Gamma, 0.1f, 4.f);
-	float contrast = clamp<float>(vid_contrast, 0.1f, 3.f);
-	float bright = clamp<float>(vid_brightness, -0.8f, 0.8f);
-
-	double invgamma = 1 / gamma;
-	double norm = pow(255., invgamma - 1);
-
-	for (int i = 0; i < 256; i++)
-	{
-		double val = i * contrast - (contrast - 1) * 127;
-		val += bright * 128;
-		if (gamma != 1) val = pow(val, invgamma) / norm;
-
-		gammaTable[i] = gammaTable[i + 256] = gammaTable[i + 512] = (uint16_t)clamp<double>(val * 256, 0, 0xffff);
-	}
-}
-
 //==========================================================================
 //
 // DFrameBuffer :: GetCaps
diff --git a/src/v_video.h b/src/v_video.h
index 58b9e7fa8..2fd3f7e13 100644
--- a/src/v_video.h
+++ b/src/v_video.h
@@ -329,7 +329,6 @@ protected:
 	template<class T>
 	bool ParseDrawTextureTags(FTexture *img, double x, double y, uint32_t tag, T& tags, DrawParms *parms, bool fortext) const;
 	void DrawTextCommon(FFont *font, int normalcolor, double x, double y, const char *string, DrawParms &parms);
-	void BuildGammaTable(uint16_t *gt);
 
 	F2DDrawer m2DDrawer;
 private: