[GEM-dev] 2textures + gemframebuffer

[cyrille henry]

marius schebella a écrit :
> cyrille henry wrote:
>>
>>
>> marius schebella a écrit :
>>> hey cyrille,
>>> thanks a lot! everything is working now!
>> cool
>>> I also think it is strange that you have to render the last texture 
>>> (23) before the shader (13).
>> 23 is rendered after 13.
>> what i think is strange is that the last framebuffer can not be 
>> computed after rendering to texunit 1 and 2 (gemhead 21 and 22)
> 
> 
> it is difficult to tell, whether a frame is delayed by 1, but change 13 
> to 24, and it still works.
yes, your're right.
but then, changing the 23 to 25 does not work.

> 
>>> is there any possibility to influence the pix size other than loading 
>>> images that have the same dimen as the gemframebuffer?
>> yes, you can.
>> in your shader, just use texcoord0 * size_frambuffer.xy / 
>> size_dummy_image.xy
> 
> naa, I don't want to send additional parameters to the shader, rather 
> use a set of images with predefined sizes and swap them.
or use a pix_resize, or any object that can change/ create the size of create a dummy image

cyrille

> I guess 
> gemframebuffer dimen will be one of 256*256 or 320*240 or 512*512 or 
> 1024*1024 or maybe some more. this is really a problem on the Pd side, 
> and I would like to keep all the hacks and workarounds inside Pd, then 
> it will work with standard shaders.
> marius.
> 
>