threejs-worldgen
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    Interface MPMSnowSurfaceProps

    Props of <MPMSnowSurface>: every SnowSurfaceOptions setting plus the ones below.

    interface MPMSnowSurfaceProps {
        color?: string;
        debris?: number;
        detail?: number;
        edgeCells?: number;
        edgeDepth?: number;
        glints?: number;
        minDepth?: number;
        packedColor?: string;
        packedJp?: number;
        packedRoughness?: number;
        ref?: Ref<MPMSnowSurface | null>;
        relief?: number;
        roughness?: number;
        solver: MPMSolver;
        translucency?: number;
        translucencyColor?: string;
    }

    Hierarchy

    Index
    color? debris? detail? edgeCells? edgeDepth? glints? minDepth? packedColor? packedJp? packedRoughness? ref? relief? roughness? solver translucency? translucencyColor?
    color?: string

    Albedo of fresh snow (#rrggbb, sRGB).

    debris?: number

    Relief of the blocks drawn on debris, in grid cells: debris blocks are about the size of the simulation's cells, so where a column's particles disagree on Jp (chunks of compacted snow among fractured snow) each particle block (buffers.state.z, e.g. Voronoi clusters assigned at emission; 0…255) is drawn at its own height. 0 off.

    detail?: number

    Surface samples per grid cell along x and z. 2 (one per particle spacing) is best: other values beat against the particle lattice. Fixed at construction.

    edgeCells?: number

    Width of that blend, in grid cells, starting where the particle cover reaches full depth (~2.5 cells in from the walls).

    edgeDepth?: number

    Static snow depth just outside the domain, metres: the surface blends to it at the domain edge (0: bare ground).

    glints?: number

    Share of ~6 mm ice grains that glint (glossy, tilted facets catching the sun; faded with distance). 0 off.

    minDepth?: number

    Depth below which the cover thins out under the terrain, metres (a soft, patchy snow line rather than a seam).

    packedColor?: string

    Albedo of fully compacted snow (footprints, tracks, debris).

    packedJp?: number

    Plastic volume ratio Jp at which snow looks fully compacted (1 is fresh).

    packedRoughness?: number

    Roughness of fully compacted snow (smoother, a soft sheen).

    ref?: Ref<MPMSnowSurface | null>

    Receives the MPMSnowSurfaceImpl instance.

    relief?: number

    Height of the faint wind texture (normal detail only, faded by distance), metres.

    roughness?: number

    Roughness of fresh snow.

    solver: MPMSolver

    The solver whose snow it draws (from <MPM ref>).

    translucency?: number

    Light scattered through the snow (translucency; 0 off): lights faces turned from the sun, strongest at grazing light.

    translucencyColor?: string

    Colour of light that has travelled through snow (ice absorbs red: blue-cyan).

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