#version 100

precision mediump int;
precision mediump float;


attribute vec4 position;
uniform float flipping;
varying vec2 uv;

void main()
{
	vec4 inPos = position;
    gl_Position = vec4(inPos.x, flipping * inPos.y, 0.0, 1.0);
    inPos.xy = sign(inPos.xy);
    uv = (vec2(inPos.x, -inPos.y) + 1.0)/2.0;
}