shaders-msl/frag/front-facing.frag

#version 310 es
precision mediump float;

layout(location = 0) out vec4 FragColor;
layout(location = 0) in vec4 vA;
layout(location = 1) in vec4 vB;

void main()
{
	if (gl_FrontFacing)
		FragColor = vA;
	else
		FragColor = vB;
}