Adjust clip-space for Metal

spirv_msl.cpp

@@ -1176,9 +1176,10 @@ void CompilerMSL::emit_fixup()
 	{
 		if (options.vertex.fixup_clipspace)
 		{
-			const char *suffix = backend.float_literal_suffix ? "f" : "";
+			/*const char *suffix = backend.float_literal_suffix ? "f" : "";
 			statement(qual_pos_var_name, ".z = 2.0", suffix, " * ", qual_pos_var_name, ".z - ", qual_pos_var_name,
-			          ".w;", "    // Adjust clip-space for Metal");
+			          ".w;", "    // Adjust clip-space for Metal");*/
+            statement(qual_pos_var_name, ".z = (", qual_pos_var_name, ".z + ", qual_pos_var_name, ".w) * 0.5;       // Adjust clip-space for Metal");
 		}
 
 		if (msl_config.flip_vert_y)

spirv_msl.hpp

@@ -28,8 +28,8 @@ namespace spirv_cross
 struct MSLConfiguration
 {
 	uint32_t vtx_attr_stage_in_binding = 0;
-	bool flip_vert_y = true;
-	bool flip_frag_y = true;
+	bool flip_vert_y = false;
+	bool flip_frag_y = false;
 	bool is_rendering_points = false;
 };