donnier 发表于 2016-12-30 11:26
var bitmap0 = new LBitmap(bitmapdata0);
var bitmap1 = new LBitmap(bitmapdata1);
bitmap1.blendM ...
canvas中的source-in就是这个效果，官方给的解释
The new shape is drawn only where both the new shape and the destination canvas overlap. Everything else is made transparent.
我也只是照着翻译一下而已
解决办法，你可能需要修改原图了
发表于 2016-12-30 11:10:22
