enceladuss 0.0.3

Enceladus celestial simulation crate for the MilkyWay SolarSystem workspace
Documentation 
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#[derive(Debug, Clone)]
pub enum UniformValue {
    Float(f32),
    Vec3([f32; 3]),
    Vec4([f32; 4]),
    Int(i32),
}

#[derive(Debug, Clone)]
pub struct ShaderUniform {
    pub name: &'static str,
    pub value: UniformValue,
}

pub struct ShaderEndpoint {
    pub name: &'static str,
    pub uniforms: Vec<ShaderUniform>,
}

impl ShaderEndpoint {
    pub fn terrain() -> Self {
        Self {
            name: "enceladus_terrain_pbr",
            uniforms: vec![
                ShaderUniform {
                    name: "u_planet_radius",
                    value: UniformValue::Float(crate::ENCELADUS_RADIUS_M as f32),
                },
                ShaderUniform {
                    name: "u_sun_direction",
                    value: UniformValue::Vec3([0.0, 1.0, 0.0]),
                },
                ShaderUniform {
                    name: "u_camera_pos",
                    value: UniformValue::Vec3([0.0, 0.0, 0.0]),
                },
                ShaderUniform {
                    name: "u_surface_temp_k",
                    value: UniformValue::Float(75.0),
                },
                ShaderUniform {
                    name: "u_ice_albedo",
                    value: UniformValue::Float(0.99),
                },
            ],
        }
    }

    pub fn plume() -> Self {
        Self {
            name: "enceladus_plume_scatter",
            uniforms: vec![
                ShaderUniform {
                    name: "u_plume_height_km",
                    value: UniformValue::Float(500.0),
                },
                ShaderUniform {
                    name: "u_plume_opacity",
                    value: UniformValue::Float(0.15),
                },
                ShaderUniform {
                    name: "u_particle_scatter_color",
                    value: UniformValue::Vec3([0.95, 0.97, 1.0]),
                },
                ShaderUniform {
                    name: "u_sun_direction",
                    value: UniformValue::Vec3([0.0, 1.0, 0.0]),
                },
            ],
        }
    }

    pub fn tiger_stripe() -> Self {
        Self {
            name: "enceladus_tiger_stripe_thermal",
            uniforms: vec![
                ShaderUniform {
                    name: "u_vent_temp_k",
                    value: UniformValue::Float(197.0),
                },
                ShaderUniform {
                    name: "u_background_temp_k",
                    value: UniformValue::Float(75.0),
                },
                ShaderUniform {
                    name: "u_thermal_glow_color",
                    value: UniformValue::Vec3([0.8, 0.6, 0.3]),
                },
                ShaderUniform {
                    name: "u_thermal_output_gw",
                    value: UniformValue::Float(15.8),
                },
            ],
        }
    }
}