Merge pull request #1366 from kayru/orthographic_projection_epsilon

Added projection matrix epsilon that fixes depth clipping issues in some games

Source/Core/VideoCommon/VertexShaderManager.cpp

@@ -88,7 +88,7 @@ static float PHackValue(std::string sValue)
 
 void UpdateProjectionHack(int iPhackvalue[], std::string sPhackvalue[])
 {
-	float fhackvalue1 = 0, fhackvalue2 = 0;
+	float fhackvalue1 = 0, fhackvalue2 = FLT_EPSILON; // hack to fix depth clipping precision issues (such as Sonic Unleashed UI)
 	float fhacksign1 = 1.0, fhacksign2 = 1.0;
 	const char *sTemp[2];