ActionScript 3 :: Reset Collection Of Properties Or Create New Instance?

Apr 10, 2012

I have a Matrix which I recycle and use for drawing DisplayObject instances onto a Bitmap. At the moment, I reset the Matrix before I render each item, like this:
_matrix.a = 1;
_matrix.b = 0;
_matrix.c = 0;
_matrix.d = 1;
_matrix.tx = 0;
_matrix.ty = 0;

Would it be better to do the above, or to simply do this?:
_matrix = new Matrix();
Generally I would say the former, however I'm unsure if in the case of Matrix there is some heavy stuff going on for each of those properties that I reset (mathematically).

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