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View Full Version : an algorithm for order independant transparency ?



phanie
07-19-2001, 05:39 AM
hello !
have somebody ever heard something about order independant transparency described by Diefenbach ?

it seems that it's possible to render correct transparency using multipass rendering, and a double depth buffer (or shadow mapping hardware (or something like that... http://www.opengl.org/discussion_boards/ubb/confused.gif ) with alpha test ).

if somebody is using this technique, can he/she give me more details ?

Thanks http://www.opengl.org/discussion_boards/ubb/smile.gif

Stephanie

[This message has been edited by phanie (edited 07-19-2001).]

Eric
07-19-2001, 06:56 AM
Here is a link to a demo and paper (from nVIDIA).
http://partners.nvidia.com/marketing/Developer/DevRel.nsf/pages/EEFAD0772D0514D288256A4D00662526

The author is Cass Everitt whose posts you can find quite often in the advanced section of these forums (his username is... cass !).

Although this technique seems interesting, it is damn slow, even on my GeForce3...

Regards.

Eric

phanie
07-19-2001, 11:24 PM
thanks for the informations !
phanie

Eric
07-19-2001, 11:48 PM
Y a pas de quoi...

Eric

P.S.: sorry to non French-speakers http://www.opengl.org/discussion_boards/ubb/wink.gif !