> Note that with OPenGL in general, its the transforming that buys you > performance -- when you push brand new data to be rendered, it takes a lot > of time to push that data to the video card, so drawing the first time > doesn't buy you much. But if you need to re-render that same data in a > different view, say zooming in or out, etc, then GL can fly -- if that > transformation can be done on the GPU. > > As far as I understand it, that's what vispy is doing.
Exactly. Note that pushing data on the GPU is not that slow: 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. ------------------------------------------------------------------------------ Dive into the World of Parallel Programming The Go Parallel Website, sponsored by Intel and developed in partnership with Slashdot Media, is your hub for all things parallel software development, from weekly thought leadership blogs to news, videos, case studies, tutorials and more. Take a look and join the conversation now. http://goparallel.sourceforge.net/ _______________________________________________ Matplotlib-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
