#version 330 core
in float Height;
out vec4 FragColor;

void main() {
    float h = (Height + 16)/32.0f;	// shift and scale the height into a grayscale value
    // FragColor = vec4(h, h, h, 1.0);
    if (Height < 1.01f) {
        FragColor = vec4(0.2f, 0.3f, 0.3f, 1.0f);
    } else {
        FragColor = vec4(1, 1, 1, 1.0);
    }
}