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Re: depth testing: none of them seems to be correct?


On 13 Jul 2007, at 18:54, Allan Schaffer wrote: 

No to both - this is a general characteristic of Z buffer + alpha.
Alpha transparency requires the geometry be sorted from back-to-front.

Thanks for that, just to clarify can I confirm that you would need to programatically figure out your
ordering in some kind of pre-pass.... As rendering layer is not an input that can be changed by the composition
this can't be achieved in quartz composer (tiger version) can it?

Roger
CoreMelt


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References: 
 >depth testing: none of them seems to be correct? (From: Roger Bolton <email@hidden>)
 >Re: depth testing: none of them seems to be correct? (From: Karan Lyons <email@hidden>)
 >Re: depth testing: none of them seems to be correct? (From: Roger Bolton <email@hidden>)
 >Re: depth testing: none of them seems to be correct? (From: Karan Lyons <email@hidden>)
 >Re: depth testing: none of them seems to be correct? (From: Roger Bolton <email@hidden>)
 >Re: depth testing: none of them seems to be correct? (From: Roger Bolton <email@hidden>)
 >Re: depth testing: none of them seems to be correct? (From: Karan Lyons <email@hidden>)
 >Re: depth testing: none of them seems to be correct? (From: Roger Bolton <email@hidden>)
 >Re: depth testing: none of them seems to be correct? (From: Allan Schaffer <email@hidden>)



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