I’m hoping someone might be able to be able to identify the problem with this render. We’ve got a plane with hair+fur for grass, and another plane over with with an alpha channel opacity map for a laser.

The problem seems to center around hair and fur not recognizing the opacity map for the laser. Any ideas?

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Would you mind posting the file so we have something to play with and troubleshoot?

Max Design 2012 SP2 / Win 7 Pro
NVidia Quadro FX 4800 x 2 (non sli)
HP Z800 - 2 Xeon X5680 @ 3.33 GHz; 36 GB ram

Go into Effects and try changing the Composite Method to GBuffer.

EDIT
That GBuffer thing is supposed to deal with this but doesn’t. With mr it makes no difference, with scanlline it tries, but get’s it wrong.
With mr it seems to render the bit behind in mr prim, which doesn’t look the same as the rest of the hair. With scanline it just misses out the hair behind unless you use GBuffer.
If you use mr prim or geometry it’s not a problem.

looks like a bug to me:

Max 8/9/2008 behave like expected with the G-Buffer option enabled
Max 2009 SP1 Ext1 here trashes the output, effect/error is dependant on the new settingss in “Buffer rendering options”
Well gooooooood quality managment again ADESK…
If you look at the alpha channel you’ see what a thrashed rendering looks like....

please file a bug report on this !

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