[PD] Iterative processes on textures in GEM
IOhannes m zmoelnig
zmoelnig at iem.at
Thu Jul 15 10:09:11 CEST 2004
> Hello All!
> I want to perform an iterative process to a texture in GEM.
> Is there a delwrite~ type object for GEM, something that
> would hold a snapshot of a texture and emit copies of what
> ever texture was last recieved on bangs?
a) are you sure you are talking about textures - as opposed to
a pixel-image (or just image,...) is an image-data representation in
main-memory. this is, what almost all [pix_-objects work on.
a texture is the image-data uploaded to the openGL-server (in most
cases: your gfx-card); there are very view operations you can do on
textures, as there is no direct access to that data any more (well,
modern gfx-cards would support pixel-fx that are executed on the GPU,
but Gem does not yet)
b) supposed you are talking about images: the object that does exactly
what you are describing is [pix_buf], a buffer for images. (can either
be banged or emit a copy of the image each render-cycle automatically
c) if you want to do feedbacks, you should also have a look at
[pix_buffer] (something completely different!), [pix_buffer_read] and
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