[PD] Arbitrary meshes/drawlines in GEM?

[cyrille henry]

dohh,

I complettely forget this one, thanks for the reminder.
it is obviouslly a good choice for this task.

cheers
c


Le 05/08/2016 à 22:32, Jack a écrit :
> There is also the [gemvertexbuffer] object to draw a mesh.
> See help and examples about it.
> ++
>
> Jack
>
>
>
> Le 05/08/2016 à 19:26, cyrille henry a écrit :
>> hello,
>>
>> for now, i thik the most optimized solution is to :
>> use a tabdump extern to send the data to a pix_set object
>> use a shader to distord a mesh_square/mesh_line geometry according to
>> this texture
>>
>> I have plan to add a message to pix_set object to read directlly the
>> table to remove the list bottleneck (and an external dependency)
>> I would also love to have time to include this functionality to
>> mesh_square...
>>
>>
>> But if you have only few thousand line to draw, [curve 2] object (with a
>> [res 2< message) and a loop will be fine on any recent computer.
>> (or GEMglBegin etc)
>>
>> cheers
>> c
>>
>>
>>
>> Le 05/08/2016 à 18:56, Daniel Iglesia a écrit :
>>> I have (large, e.g. size  >512) quickly-varying arrays of data in Pd
>>> that I'd like to turn into vertices/lines in GEM. How do I either
>>>
>>> 1) draw a large mesh (such as with jit.gl.mesh) without having to, for
>>> example, specify a [polygon] with 512 inlets
>>>
>>> or
>>>
>>> 2) send individual drawline commands to GEM (without having to, for
>>> example, use GEMglBegin with 512 GEMglVertex3f objects in a row), e.g.
>>> [drawline x y z x y z (
>>>
>>> (the only other idea I have is to use a vertex shader and send in
>>> lists of point data as a parameter to that, which hopefully doesn't
>>> have a bottleneck)
>>>
>>> thanks for any advice, Dan
>>>
>>>
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