Narrows any value to a RenderTargetTexture — the seam a backend uses
to tell "sample the framebuffer I rendered into" from "upload these bytes".
Written exactly like isParticleDrawable: a marker property plus the one
member the caller will actually reach for, so a partially-formed object is
rejected rather than half-accepted.
Narrows any value to a RenderTargetTexture — the seam a backend uses to tell "sample the framebuffer I rendered into" from "upload these bytes".
Written exactly like
isParticleDrawable: a marker property plus the one member the caller will actually reach for, so a partially-formed object is rejected rather than half-accepted.