filament/samples/materials/sandboxLitSolidRefraction.mat

material {
    name : SolidRefraction,
    shadingModel : lit,
    refractionType : solid,
    refractionMode : cubemap,
    parameters : [
        {
            type : float,
            name : alpha
        },
        {
            type : float3,
            name : baseColor
        },
        {
            type : float,
            name : roughness
        },
        {
            type : float,
            name : metallic
        },
        {
            type : float3,
            name : sheenColor
        },
        {
            type : float,
            name : sheenRoughness
        },
        {
            type : float,
            name : clearCoat
        },
        {
            type : float,
            name : clearCoatRoughness
        },
        {
            type : float,
            name : anisotropy
        },
        {
            type : float3,
            name : absorption
        },
        {
            type : float,
            name : thickness
        },
        {
            type : float,
            name : ior
        },
        {
            type : float,
            name : transmission
        },
        {
            type : float,
            name : dispersion
        },
        {
            type : float4,
            name : emissive
        }
    ],
    specularAntiAliasing : true
}

fragment {
    void material(inout MaterialInputs material) {
        prepareMaterial(material);
        material.baseColor.rgb = materialParams.baseColor * materialParams.alpha;
        material.baseColor.a = materialParams.alpha;
        material.roughness = materialParams.roughness;
        material.metallic = materialParams.metallic;
        material.sheenColor = materialParams.sheenColor;
        material.sheenRoughness = materialParams.sheenRoughness;
        material.clearCoat = materialParams.clearCoat;
        material.clearCoatRoughness = materialParams.clearCoatRoughness;
        material.anisotropy = materialParams.anisotropy;
        material.absorption = materialParams.absorption;
        material.thickness = materialParams.thickness;
        material.ior = materialParams.ior;
        material.transmission = materialParams.transmission;
        material.dispersion = materialParams.dispersion;
        material.emissive = materialParams.emissive;
    }
}