Luxar Viewer API Documentation - v2026.9.22
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    Interface PhysicalCompositingInputs

    The five inputs the compositing decision is a pure function of.

    interface PhysicalCompositingInputs {
        opacity: number;
        vertexAlpha: boolean;
        alphaCutoff: number | undefined;
        transmission: number;
        refractData: boolean;
    }
    Index
    opacity vertexAlpha alphaCutoff transmission refractData
    opacity: number
    vertexAlpha: boolean
    alphaCutoff: number | undefined
    transmission: number

    The material's transmission; > 0 is glass and composites as translucent.

    refractData: boolean

    Luxar refract_data: the glass draws AFTER the emissive data instead of before it (spec §3.4 Phase 3). Meaningless without transmission > 0, and inert then.

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