[PD] pix_texture on the gpu?

IOhannes m zmoelnig zmoelnig at iem.at
Tue Nov 29 09:20:16 CET 2011

Hash: SHA1

On 2011-11-29 05:40, ronni montoya wrote:
> Hello, pix_texture seems a little bit slow when i iterate a geo with
> texture.  I was wondering if there is a way of doing the same in the
> gpu?
> Should it be possible to assign a texture to a geo but using the gpu?
> which is the best way?

in the default use case, [pix_texture] transfers image data from main
memory to GPU memory, so all subsequent actions involve GPU only.

so to answer your question: pix_texture does not run on the gpu but is
the bridge between cpu and gpu. that's by definition. it's hard to do
anything about it.

if you want to use the same texture for multiple Geos, you should put
the [pix_texture] outside of the iteration, so you ensure to only once
transfer the image to the GPU and then use it however often you like.

you can also use a GPU-based texture generated by one [pix_texture]
within another [pix_texture] by using their 2nd iolets.

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