#version 460

layout (location = 0) out vec2 outUV;

void main()
{
    outUV = vec2((gl_VertexIndex << 1) & 2, gl_VertexIndex & 2);
//    gl_Position = vec4(outUV * 2.0f + -1.0f, 0.0f, 1.0f);
    gl_Position = vec4(outUV * 2.0 - 1.0, 1.0, 1.0);
}