Re: [PyOpenGL-Users] Pyopengl same as opengl?

[Christopher A. <chr...@gm...>]

I have used OpenGL in a number of languages (Python, Java, C, and C+=20
+). As Enrike said, PyOpenGL is just a thin layer over C libraries. I =20=

found OpenGL to run pretty much at speed in Python. Python itself, =20
however, is quite a bit slower.  So, to get the best performance, you =20=

want to do as little computation as possible in Python itself. Make =20
heavy use of display lists and libraries like Numeric (or Numpy).

It does take a little more thought to get good fps, but on the flip =20
side, Python is a great high level OO language and the support for =20
OpenGL is really quite good. Unlike some libraries (like the ones =20
I've used under Java), PyOpenGL really works almost identically to =20
the way that it does under C (with some nice Pythonic touches). This =20
is really exactly what Python is meant for - giving a nice high level =20=

glue interface on top of high performance, low level C libraries.

As a side note, I just used PyOpenGL to teach my graphics course this =20=

spring and it worked great. My students could put all of their focus =20
on the OpenGL and the Python pretty much got out of the way.



On Jun 12, 2006, at 10:57 AM, altern wrote:

> hi Tham
>
> Tham Ting Hoi escribi=F3:
>> is pyopengl similar to opengl in its performace?
>
> Looks like none has answered you about this. I cannot give too much =20=

> info
> as I have hardly use openGL outside of python. But as far as I
> understand pyopengl is pretty fast as it is just a tiny layer of =20
> python
> on top of C opengl code, what it is NOT that fast compared to C, is
> Python. This means that if you do very simple program your performance
> could be ok, but if there is a lot of python code to be executed every
> frame then you will find that the frame rate will drop.
>
> Keep in mind that opengl can be used within many different languages,
> each of them offers benefits and drawbacks.
>
> however, as i said before, i am not an expert at all.
>
>> thanks for any answer.
>
> i hope it helps
>
> best
>
> --
> enrike
>
>
>
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