Type Alias: EffectSurface

EffectSurface = "filter" | "shader"

Defined in: attributes/shape/effects/effect-data.ts:27

How a backend must realise an effect.

"filter" (the default) — the effect transforms colours in place, so it composes as a plain image filter alongside its neighbours in the chain.
"shader" — the effect resamples pixel positions (warps, bands, or otherwise reads neighbouring texels), so it needs the content snapshotted into a texture and redrawn through a lens rather than composed.

This is a statement about the effect, not about any particular backend: it says the effect needs random access to its source, which is why it belongs here next to lerp/equals rather than in the renderer.