[PD] display lists - was: Re: lua scripting for pd objects

Thomas Grill gr at grrrr.org
Sun Apr 13 18:40:41 CEST 2008

i really have next to no GEM knowledge, but i was always asking  
myself whether GEM compiles the GL commands to display lists.
If yes, is that structured by using separate gemheads, if no, why  
isn't it used?
If display lists are used i would think it shouldn't make a lot of  
difference which language is used for the GL commands (apart from  
changing parameters maybe).

Am 13.04.2008 um 16:38 schrieb Frank Barknecht:

> Hallo,
> cyrille henry hat gesagt: // cyrille henry wrote:
>>> luagl is not as fast as C, but it's already much faster than using
>>> lots of separators or double gemheads.
>>> Regarding Gem-externals: Does anyone have a simple template project
>>> how to write and compile a custom Gem external? This could be very
>>> useful, but I'm a bit confused how to do this in a simple way.
>> use a gem object (like cube).
>> search and replace "cube" by the name of your object in both the  
>> ccp and h
>> file.
>> use this makefile (adjust the name of the file / src directory).
>> it should compile.
> Thanks a lot Cyrille. I made a little "benchmark" of a [linebuffer]
> object in luagl vs. a quickly hacked C++ version (warning, very ugly
> code!! Includes bugs I didn't care to fix for now.)
> In this case, Lua does compare quite well with the C++ version on my
> machine.
> Ciao
> -- 
>  Frank Barknecht                                     _  
> ______footils.org__<lua-c- 
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