[PD] 3 1/2 shaders help!

[vade]

ok, thats what I thought, so its not only an issue with sampler2DRect.

Thanks for clarifying.

On Nov 6, 2007, at 9:39 PM, marius schebella wrote:

> well, as soon as you try to use gl_MultiTexCoord1, it does not work
> anymore. I think using gl_MultiTexCoord0 sometimes works, even with
> images of different sizes, but for example the lumaglyph does not work
> without gl_MultiTexCoord1. I don't know how the information can be
> passed from gemstate.
> marius.
>
> vade wrote:
>> if that is the issue, then it should (?) work for sampler2D and
>> texture2D, but I thought we had tested that the other night at the
>> Patching Circle and found it to not work?
>>
>> ill write a simple shader shortly using square textures as inputs  
>> and we
>> can test the theory out.
>>
>>
>> On Nov 6, 2007, at 9:13 PM, marius schebella wrote:
>>
>>> yes, I was referring to cyrille's mail
>>> http://lists.puredata.info/pipermail/pd-list/2007-07/052026.html
>>> but that is already included in the current version.
>>> also, this mail seems to be related to the problem
>>> http://lists.puredata.info/pipermail/gem-dev/2007-08/002873.html
>>> marius.
>>>
>>> vade wrote:
>>>> Hi.
>>>>
>>>> I was working a bit with Marius on porting the shaders, and would  
>>>> love
>>>> to figure out the issues with multitexturing with GLSL programs.  
>>>> If a
>>>> developer (chris?) would be kind enough to point me in the right
>>>> direction...
>>>>
>>>> Marius mentioned an email a while ago pointing out a typo in a  
>>>> GEM c
>>>> file. Reports indicated that fixing this typo resolved  
>>>> multitexturing
>>>> issues. Marius checked the latest GEM builds included with Extended
>>>> (0.4.xxx), which do include the fix for the typo (i rather than 1),
>>>> however neither of us seem to be making any leeway wrt  
>>>> multitexturing.
>>>>
>>>> Id love any pointers.
>>>>
>>>> Thanks,
>>>>
>>>> On Nov 4, 2007, at 7:38 PM, marius schebella wrote:
>>>>
>>>>> hey,
>>>>> I was working on shaders recently and put some stuff online
>>>>> http://www.parasitaere-kapazitaeten.net/Pd/4shaders
>>>>> shader #3 is the most advanced, uses a normal map texture.
>>>>> but I am still running into problems when using multiple  
>>>>> shaders. the
>>>>> problem (again) is, that gl_MultiTexCoords1 does not get the  
>>>>> correct
>>>>> values passed from GEM.
>>>>> so the 4th shader should use two images of different sizes, but  
>>>>> I only
>>>>> got it working very rudimentary. If anyone can help me with  
>>>>> this, it
>>>>> would solve a very big problem! (chris?)
>>>>> Thanks to vade so far for his support!
>>>>> marius.
>>>>>
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