Update only the frame UVs for one sprite.
The sprite keeps its explicit sizePx/saved size. For atlas-driven size changes, call updateSprite2DIndex(layer, index, { frame, sizePx }). Existing flip state is preserved for non-degenerate UV ranges.
sizePx
updateSprite2DIndex(layer, index, { frame, sizePx })
Update only the frame UVs for one sprite.
The sprite keeps its explicit
sizePx/saved size. For atlas-driven size changes, callupdateSprite2DIndex(layer, index, { frame, sizePx }). Existing flip state is preserved for non-degenerate UV ranges.