RichardRussell
Posts: 154
Joined: Thu Jun 21, 2012 10:48 am

VC4 driver and display lists

Thu Jul 06, 2017 11:30 am

I've got 'simple' OpenGL programs running successfully with the VC4 GL driver, but programs that use display lists are not rendering anything except the background colour (although glGetError returns zero). Before attempting more detailed debugging, are there any known issues regarding the use of display lists with the VC4 driver?

Richard.

jamesh
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 19579
Joined: Sat Jul 30, 2011 7:41 pm

Re: VC4 driver and display lists

Thu Jul 06, 2017 3:23 pm

Probably best to bug report on Eric's github. https://github.com/anholt/mesa
Principal Software Engineer at Raspberry Pi (Trading) Ltd.
Please direct all questions to the forum, I do not do support via PM.

RichardRussell
Posts: 154
Joined: Thu Jun 21, 2012 10:48 am

Re: VC4 driver and display lists

Thu Jul 06, 2017 7:01 pm

As you were; it wasn't a problem with the VC4 driver. Turned out to be an obscure bug in the ARM edition of my BBC BASIC interpreter, causing the MOD function (modulus of an array) to misbehave, and this was mucking up the 3D computations.

Richard.

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