attribute vec4 attr_Position;
attribute vec4 attr_TexCoord0;

varying vec2   var_ScreenTex;

void main()
{
	gl_Position = attr_Position;
	var_ScreenTex = attr_TexCoord0.xy;
	//vec2 screenCoords = gl_Position.xy / gl_Position.w;
	//var_ScreenTex = screenCoords * 0.5 + 0.5;
}