SPIRV-Cross/shaders-msl/vulkan/vert/vulkan-vertex.vk.vert

#version 310 es

void main()
{
   gl_Position = float(gl_VertexIndex + gl_InstanceIndex) * vec4(1.0, 2.0, 3.0, 4.0);
}
Enhance MSL testing and add numerous MSL test cases. Add to suite of MSL tests and references any existing GLSL tests that successfully convert GLSL->SPIRV->MSL and compile as MSL. test_shaders_helper() ignores hidden files that start with '.', to avoid accidentally finding hidden OSX files such as .DS_Store. Use xcrun to compile MSL shaders instead of hard-coded path to Metal compiler. Wrap calls to xcrun in exception handling to ignore if Xcode not installed. For MSL tests, move call to validate_shader_msl() to after call to regression_check() to allow a converted MSL shader to be saved for manual review even if it doesn't successfully compile as MSL. 2017-01-31 03:55:21 +00:00			`#version 310 es`

			`void main()`
			`{`
			`gl_Position = float(gl_VertexIndex + gl_InstanceIndex) * vec4(1.0, 2.0, 3.0, 4.0);`
			`}`