#version 460
layout(location = 0) in vec4 v_color;
layout(location = 1) in float depth;
layout(location = 2) in vec3 v_normal_vs;

layout(location = 0) out vec4 out_color;

void main() {
    vec3 light_dir = normalize(vec3(0.5, 1.0, 0.8));

    float ambient  = 0.2;
    float diffuse  = max(dot(v_normal_vs, light_dir), 0.0);
    float lighting = ambient + (1.0 - ambient) * diffuse;

    out_color = vec4(v_color.rgb * lighting, v_color.a);
}