moons 0.0.3

Moon celestial simulation crate for the MilkyWay SolarSystem workspace
Documentation 
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#[derive(Debug, Clone, Copy, PartialEq)]
pub struct PbrMaterial {
    pub albedo: [f32; 3],
    pub roughness: f32,
    pub metallic: f32,
}

impl PbrMaterial {
    pub fn regolith() -> Self {
        Self {
            albedo: [0.42, 0.42, 0.40],
            roughness: 0.96,
            metallic: 0.0,
        }
    }

    pub fn mare_basalt() -> Self {
        Self {
            albedo: [0.22, 0.22, 0.24],
            roughness: 0.91,
            metallic: 0.02,
        }
    }

    pub fn polar_ice() -> Self {
        Self {
            albedo: [0.75, 0.80, 0.85],
            roughness: 0.35,
            metallic: 0.0,
        }
    }
}