caustics constant
RenderStep
const caustics
Light through glass followed as photons into the directional map —
ShadowSettings.caustics. Drawn inside the shadow pass, so it owns no
pass of its own, and needs shadows.
Implementation
static const RenderStep caustics = RenderStep._(
'f3d.caustics',
_causticsOff,
_causticsOn,
needs: <RenderStep>{shadows},
);