Re: [matplotlib-devel] Kivy backend

[Michael D. <md...@st...>]

Giving it a cursory glance, I think it's mostly current.  Is there 
something specific that isn't working for you?

Mike

On 03/23/2015 08:09 AM, Achyut Rastogi wrote:
> Hello,
> I am having trouble following the instructions given here --> 
> https://github.com/matplotlib/matplotlib/blob/master/lib/matplotlib/backends/backend_template.py#L16 
> it feels like the code was refractored (changed?) and those 
> instructions never updated?
>
> On Sun, Mar 15, 2015 at 6:23 AM, Chris Barker - NOAA Federal 
> <chr...@no... <mailto:chr...@no...>> wrote:
>
>     On Mar 13, 2015, at 12:50 PM, Cyrille Rossant
>     <cyr...@gm... <mailto: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.
>
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