Variable MaterialBlendPreset`Const`

MaterialBlendPreset: Readonly<
    {
        PREMULTIPLIED_ADDITIVE: Readonly<MaterialBlendState>;
        PREMULTIPLIED_ALPHA: Readonly<MaterialBlendState>;
        STRAIGHT_ALPHA: Readonly<MaterialBlendState>;
        STRAIGHT_ALPHA_ADDITIVE: Readonly<MaterialBlendState>;
    },
> = ...

Canonical immutable blend equations shared by materials and low-level render passes.