Hi YangXiao I don't think it safe in a multi-thread program. The drawables' update callbacks are handled in Viewer::updateTraversal(), and may conflict with the last rendering traversal. Maybe you would change to single thread mode or use setDataVariance() to set the drawable to be dynamic.
Wang Rui 2008/11/9 YangXiao <[EMAIL PROTECTED]> > Thanks *Wang Rui I check color array size equal to vertex array size.* > ** > I means can i update Drawable color array in DrawableUpdateCallback? >
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