Daniel Hai » Re-use your BitmapData objects, speed up your apps

This is a post that I started writing about 5 months ago, and I may not be posting for a while, so here’s some info I gathered when doing per-frame analysis of Onyx’s bitmap rendering engine …. I tried to optimize per-frame bitmapdata drawing, since there were so many bitmapdata events happening on a per frame basis. The flow for one layer was as follows: var bitmap = new BitmapData(); bitmap.dra

[hoehoe3]

BitmapDataオブジェクトの速度比較

[suttang]

BitmapData new するよりも clone + fillRect の方が早い

[oki448jp]

BitmapDataオブジェクトの速度比較

[nitoyon]

BitmapData の速度比較。draw、new が遅い。可能ならば clone か copyPixels。new よりも clone＋fillRect の方が早い！