diff --git a/Source/Core/VideoBackends/D3D/main.cpp b/Source/Core/VideoBackends/D3D/main.cpp
index 88e33a5119..bdf30230b3 100644
--- a/Source/Core/VideoBackends/D3D/main.cpp
+++ b/Source/Core/VideoBackends/D3D/main.cpp
@@ -83,7 +83,7 @@ void InitBackendInfo()
 	g_Config.backend_info.bSupports3DVision = true;
 	g_Config.backend_info.bSupportsPostProcessing = false;
 	g_Config.backend_info.bSupportsPaletteConversion = true;
-	g_Config.backend_info.bSupportsClipControl = true;
+	g_Config.backend_info.bSupportsClipControl = false;
 
 	IDXGIFactory* factory;
 	IDXGIAdapter* ad;
diff --git a/Source/Core/VideoBackends/OGL/Render.cpp b/Source/Core/VideoBackends/OGL/Render.cpp
index 008437a7cb..f09bd75663 100644
--- a/Source/Core/VideoBackends/OGL/Render.cpp
+++ b/Source/Core/VideoBackends/OGL/Render.cpp
@@ -1245,7 +1245,7 @@ void Renderer::SetViewport()
 		};
 		glViewport(iceilf(X), iceilf(Y), iceilf(Width), iceilf(Height));
 	}
-	glDepthRangef(GLNear, GLFar);
+	glDepthRangef(GLFar, GLNear);
 }
 
 void Renderer::ClearScreen(const EFBRectangle& rc, bool colorEnable, bool alphaEnable, bool zEnable, u32 color, u32 z)
diff --git a/Source/Core/VideoCommon/VertexShaderGen.cpp b/Source/Core/VideoCommon/VertexShaderGen.cpp
index 45bd8d71f3..d4715a1f34 100644
--- a/Source/Core/VideoCommon/VertexShaderGen.cpp
+++ b/Source/Core/VideoCommon/VertexShaderGen.cpp
@@ -380,6 +380,10 @@ static inline void GenerateVertexShader(T& out, u32 components, API_TYPE api_typ
 	//write the true depth value, if the game uses depth textures pixel shaders will override with the correct values
 	//if not early z culling will improve speed
 	if (g_ActiveConfig.backend_info.bSupportsClipControl)
+	{
+		out.Write("o.pos.z = -o.pos.z;\n");
+	}
+	else if (api_type == API_D3D)
 	{
 		out.Write("o.pos.z = o.pos.w + o.pos.z;\n");
 	}
@@ -387,7 +391,7 @@ static inline void GenerateVertexShader(T& out, u32 components, API_TYPE api_typ
 	{
 		// this results in a scale from -1..0 to -1..1 after perspective
 		// divide
-		out.Write("o.pos.z = o.pos.w + o.pos.z * 2.0;\n");
+		out.Write("o.pos.z = o.pos.z * -2.0 - o.pos.w;\n");
 
 		// the next steps of the OGL pipeline are:
 		// (x_c,y_c,z_c,w_c) = o.pos  //switch to OGL spec terminology