SPIRV-Cross/shaders-msl-no-opt/vert/viewport-index.msl2.invalid.vert

#version 450
#extension GL_ARB_shader_viewport_layer_array : require

layout(location = 0) in vec4 coord;

void main()
{
	gl_Position = coord;
	gl_ViewportIndex = int(coord.z);
}
MSL: Handle the ViewportIndex builtin. This requires MSL 2.0+. Also, force `ViewportIndex` and `Layer` to be defined as the correct type, which is always `uint` in MSL. Since Metal doesn't yet have geometry shaders, the vertex shader (or tessellation evaluation shader == "post-tessellation vertex shader" in Metal jargon) is the only kind of shader that can set this output. This currently requires an extension to Vulkan, which causes validation of the SPIR-V binaries for the test cases to fail. Therefore, the test cases are marked "invalid", even though they're actually perfectly valid SPIR-V--they just won't work without the `SPV_EXT_shader_viewport_index_layer` extension. 2018-09-12 23:00:17 +00:00			`#version 450`
			`#extension GL_ARB_shader_viewport_layer_array : require`

			`layout(location = 0) in vec4 coord;`

			`void main()`
			`{`
			`gl_Position = coord;`
			`gl_ViewportIndex = int(coord.z);`
			`}`