Optional
Blend mode override. Same default as EffectDrawOpts.blend: "premultiplied" to the canvas, "none" to a render target.
"premultiplied"
"none"
Advance a persistent target's read/write buffers after the copy. Default: true. See EffectDrawOpts.swap.
true
Blend mode override. Same default as EffectDrawOpts.blend:
"premultiplied"to the canvas,"none"to a render target.