Hi,

I am fighting the known z-sorting issue using alphaBlending. Is there a way to set z indicies by hand? That way I could determine myself how the objects are ordered (its pretty simple in my case).

Thanks

Unfortunately it’s not quite as simple to control z-sorting in 4.0 as it was in previous versions, as it’s controlled automatically on the GPU rather than in AS3. Use alphaThreshold instead of alphaBlending. It gives a harder edge, but otherwise works as you’d expect. There are other threads explaining what happens with alphaBlending.

Good Luck!

Thanks,

yes I’ve read them all but using alphaTreshold gives unsatisfiying results in my case.. So absolutely no way to control the z index by hand?

Noone has an idea? Not even a way to change the sorting algorithm or anything?

There must be a way, basically alphaBlending can not be utilized this way..

Thanks in advance

rewb0rn - 11 November 2011 11:47 AM

Noone has an idea? Not even a way to change the sorting algorithm or anything?

There must be a way, basically alphaBlending can not be utilized this way..

Thanks in advance

It’s a brute-force workaround, but you can offset positions in subgeometries away from the Mesh’s position.  It doesn’t change the apparent view distance, but the underlying offset forces the z-ordering to be what you want. It won’t work for all situations, but in my use cases it works like a charm.  Code posted here:

http://away3d.com/forum/viewthread/2285/#10681