Comments on: BitmapMaterial tips http://labs.hellokeita.com/2007/11/28/bitmapmaterial-tips/ Yet another labs blog Fri, 21 Nov 2008 17:08:28 +0000 http://wordpress.org/?v=2.6.3 By: labs.hellokeita.com » BitmapData.lock benchmark http://labs.hellokeita.com/2007/11/28/bitmapmaterial-tips/#comment-34 labs.hellokeita.com » BitmapData.lock benchmark Tue, 04 Dec 2007 10:22:40 +0000 http://labs.hellokeita.com/2007/11/28/bitmapmaterial-tips/#comment-34 [...] read the Thomas Pfeiffer aka Kiroukou (the Sandy3D creator and project leader) commented on my previous post. Here’s what he said. Indeed Sandy does a clone of the original texture, for few reasons: - [...] [...] read the Thomas Pfeiffer aka Kiroukou (the Sandy3D creator and project leader) commented on my previous post. Here’s what he said. Indeed Sandy does a clone of the original texture, for few reasons: - [...]

]]> By: Thomas P http://labs.hellokeita.com/2007/11/28/bitmapmaterial-tips/#comment-32 Thomas P Tue, 04 Dec 2007 08:50:41 +0000 http://labs.hellokeita.com/2007/11/28/bitmapmaterial-tips/#comment-32 Hi, Indeed Sandy does a clone of the original texture, for few reasons: - avoid an unfortunate dispose call. - allowing to have a setTransparency method to dynamically change the transparency without changing the original bitmapdata of the user. Concerning the lock() and unclock() are you sure it has a performance impact? as far I know, this can't provide any performance boost since the bitmapdata isn't attached to the flash display list. When the object is out of stage, there's no advantage to lock it. But I'd be interessted to have your feedback about that, and your performance test. Best, Thomas Hi,
Indeed Sandy does a clone of the original texture, for few reasons:
- avoid an unfortunate dispose call.
- allowing to have a setTransparency method to dynamically change the transparency without changing the original bitmapdata of the user.

Concerning the lock() and unclock() are you sure it has a performance impact?
as far I know, this can’t provide any performance boost since the bitmapdata isn’t attached to the flash display list. When the object is out of stage, there’s no advantage to lock it.
But I’d be interessted to have your feedback about that, and your performance test.

Best,
Thomas

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