diff --git a/Source/Plugins/Plugin_VideoDX9/Src/PixelShaderCache.cpp b/Source/Plugins/Plugin_VideoDX9/Src/PixelShaderCache.cpp
index 6691a659b7..3f8bf95f05 100644
--- a/Source/Plugins/Plugin_VideoDX9/Src/PixelShaderCache.cpp
+++ b/Source/Plugins/Plugin_VideoDX9/Src/PixelShaderCache.cpp
@@ -199,9 +199,10 @@ static LPDIRECT3DPIXELSHADER9 CreateCopyShader(int copyMatrixType, int depthConv
 
 	if(depthConversionType != DEPTH_CONVERSION_TYPE_NONE)
 	{
-		// Here, we need to downscale texcol a bit since frac(1.0) will indeed return 0.0f, ceil() takes care of restoring the precision
-		WRITE(p, "float4 EncodedDepth = frac((texcol.r * (16777215.0f/16777216.0f)) * float4(1.0f,256.0f,256.0f*256.0f,1.0f));\n"
-		         "texcol = ceil(EncodedDepth * float4(255.0f,255.0f,255.0f,15.0f)) / float4(255.0f,255.0f,255.0f,15.0f);\n");
+		// Watch out for the fire fumes effect in Metroid it's really sensitive to this,
+		// the lighting in RE0 is also way beyond sensitive since the "good value" is hardcoded and Dolphin is almost always off.
+		WRITE(p, "float4 EncodedDepth = frac(texcol.r * (16777215.f/16777216.f) * float4(1.0f,256.0f,256.0f*256.0f,1.0f));\n"
+		         "texcol = floor(EncodedDepth * float4(256.f,256.f,256.f,15.0f)) / float4(255.0f,255.0f,255.0f,15.0f);\n");
 	}
 	else
 	{