[Mesa-users] Intel poor performance in simple OpenGL program

[Carlos Eduardo Rodrigues Diógenes]

Hi,

I have a notebook with the following video card: Intel® GMA 4500M.
lspci list it as: Intel Corporation Mobile 4 Series Chipset Integrated
Graphics Controller.

In my desktop I have the following card (with the proprietary driver
installed): GeForce 7300 LE

The program that I'm running is an example of the book "Beginning
OpenGL Game Programming" that uses lights. It's very simple. It have
three lights configured that is used to illuminate a cube that is
spinning in the center of the screen. There is also a light that spin
around the cube. The source code, with a Makefile can be found here:
http://people.gnome.org/~carlosd/lights.tar.gz (43K)

In my notebook it's take about 0.36 seconds, in average, to draw each
frame, while in my desktop it's take in average 0.08 seconds. This
time in the notebook is too long and you don't have a smooth
animation.

I guess that the problem is due the source of lights, since other
examples that doesn't use lights runs smooth in my notebook.

So, I want to now if this is a limitation of my notebook hardware or
my driver. If this is a limitation of my driver I want to help improve
it, so if in the response you could give me any advice in what to look
to understand how to implement this it will be great!

Best regards,
Carlos.