// The screen coordinates in normalized coordinates (0-1)
struct Input {
	float2 vertex_position;
};

struct Output {
	float4 position;
};

Output main(Input input) {
	Output output;
	output.position = float4(
		-1.0 + (2.0 * input.vertex_position.x),
		 1.0 - (2.0 * input.vertex_position.y),
		0.0, 1.0);
	return output;
}
