132001f49Smrg
232001f49Smrgvoid main() {
332001f49Smrg    gl_Position = gl_Vertex;
432001f49Smrg    if (gl_Position.x < 0.5)
532001f49Smrg	gl_FrontColor = vec4(1.0, 0.0, 0.0, 1.0);
632001f49Smrg    else
732001f49Smrg	gl_FrontColor = gl_Color;
832001f49Smrg}
9