matplotlib-devel Mailing List for matplotlib

On Mar 13, 2015, at 12:50 PM, Cyrille Rossant <cyr...@gm...> wrote:
> Exactly. Note that pushing data on the GPU is not that slow:
No -- and something has to be pushed to the video card at some point anyway.
But my experience is that if you need to push the data to the CPU,
that pretty much overwhelms the advantages you get by rendering on the
GPU.
And OpenGL only supports simple primitives -- so it's substantially
more a pain to do something as sole as render a filled polygon, let
alone a spline.
And yes, back In the day, it was faster to render on the video card,
but CPUs have gotten a lot faster, and memory busses not so much.
But whatever, I think we all agree that pushing the transformations to
the GPU is the big win.
-CHB
> in one
> second, you can send hundreds of millions of points on a modern GPU.
> However it would be a bit slow to send large amounts of data at every
> frame.
>
> GPU-based transformations are extremely fast, and you have full
> control on how they're implemented; in the end, it's just arbitrary C
> code that runs on the GPU on a per-vertex or per-pixel basis.