[GEM-dev] shaders on 64bit systems

[cyrille henry]

Hello,

Le 02/12/2010 14:33, IOhannes m zmoelnig a écrit :
> On 2010-12-02 14:24, cyrille henry wrote:
>> hello,
>>
>> if things need to be broken, then i suggest not to change glsl_vertex,
>> glsl_ etc, but to create other object.
>> so the current patch will work with 32 bit system.
>> and patch using this new objects will work with both 32 and 64 bits
>> systems.
>
> ah no, this doesn't sound like a good idea.
> i'd rather have to force users to switch now than to maintain 2 separate
> sets of objects for the rest of Gem's live.
it's possible to provide the old object as abstraction based on new object.

> but read on!
>
> i investigated a bit further and have created a fix that should be
> totally transparent from the user's pov, by not using wild
> reinterpretation-casts but instead using a lookup table where the real
> GLuint IDs are mapped to small floats.
this is a very good solution...

>
> this should work (check svn)
>
i usually don't do any update 1 day befor a big performance using Gem.
i will not have time to test very soon.
but i'll have a 64 bit computer in 1 or 2 month max...

thx
Cyrille

> fgmasdr
> IOhannes
>