#[test]
fn ice_sputter_opacity() {
    let d = europas::rendering::dust::SputterSpriteRenderer::ice_sputter();
    assert!(d.opacity_at_height(0.0) > 0.0);
}

#[test]
fn pristine_ice_material() {
    let m = europas::rendering::materials::PbrMaterial::pristine_ice();
    assert!(m.albedo[0] > 0.5);
}

#[test]
fn chaos_terrain_material() {
    let m = europas::rendering::materials::PbrMaterial::chaos_terrain();
    assert!(m.roughness > 0.5);
}

#[test]
fn terrain_shader() {
    let s = europas::rendering::shaders::ShaderData::terrain();
    assert!(s.gamma > 2.0);
}
