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Re: Mixing translucent objects in a GL scene

Posted by Demoscene Passivist on Feb 04, 2012; 12:40pm
URL: https://forum.jogamp.org/Mixing-translucent-objects-in-a-GL-scene-tp3697955p3715434.html

>What is the reason for unavailable functions?

Normally its a driver "issue" were the vendor simply does not support an OpenGL feature, usually because its not supported by his hardware.

>Is that due to my hardware? Should I add open gl extensions?

As far as I know glBlendFunc is part of the OpenGL 1.2 core spec, so it should be no "unsupported extension" issue. It was an extension back in the days, but that was ages ago . Also I can't imagine a hardware today that is not capable of implementing 1.2 core profile.

I myself am using glBlendFunc hereand it works fine, so its no general JOGL issue. Seems its somehow related to ur driver and/or platform ...

ps. Maybe doublecheck that ur platform is really using the hardware driver and not some sort of software fallback only supporting GL <1.2 ...