varying vec4 color;

uniform int button;

void main( void ) {
	gl_Position = gl_Vertex;
	//gl_Position.xy *= vec2(1.0, 1.2);
	gl_Position.xy /= vec2(1280, 720)*0.5;
	gl_Position.xy -= 1.0;
	gl_Position.y *= -1.0;

	if(button == 0)
		color = vec4(1.0);
	else if (button == 1)
		color = vec4(0.1, 1.0, 0.9, 1.0);
	else
		color = vec4(0.0, 0.3, 1.0, 1.0);
}