cg1_tut_bin/src/shaders/floor-fragment.glsl

#version 330 core

in vec4 vPosition;

void main() {
	gl_FragColor = mix(vec4(1,1,1,0.5), vec4(0.8,0.8,0.8,0.5), step(0, sin(vPosition.x * 3.14159) * sin(vPosition.z * 3.14159)));
	// gl_FragColor = vec4(1,0,0,1);
}