#version 410

in vec2 xy;
in vec2 uv;
uniform float z = 0.999999;

out vec2 uvV;

void main(void)
{
    // Draw against the very back of the visible cube.
    vec4 pos = vec4(xy.x, xy.y, z, 1.0);
    gl_Position = pos;

    uvV = uv;
}