Hello Chris,

Excuse me to come back on this question. But can you help me about width image size and drivers ? Do you know if there is optimization with the NVidia driver 180.44 and images with size multiple of 16 px in width ? If the answer is yes, i have to resize my images because i use 768 textures with different size at 4 fps (enough for me but if i can optimize, why not ;). (I use GeForce 9700M GTS on Ubuntu 9.04).
Thanx.
++

Jack


Le 24 juin 09 à 16:55, Jack a écrit :

Thanx Chris, but the solution given by Iohannes seems to work perfectly.
However, is it better for performance to give to an image a width multiple of 16 in any cases or not ?
I use the last NVidia driver 180.44 on Ubuntu 9.04.
++

Jack


Le 24 juin 09 à 16:32, chris clepper a écrit :

On Wed, Jun 24, 2009 at 8:53 AM, Jack <jack@rybn.org> wrote:

However, there is something very strange if it's about memory because on my MacPro 2x2.66 GHz Dual-Core Intel Xeon, i have only 256 MB on the GPU and all works fine on it (only 2 fps but it is not so slow).
The size of the images are between 127x108 and 72x123 pixels (so the total size at 24bit is near 12 MB ! : 127x108x3x300/1048576 = 11.77 MB).

Most of the drivers have optimizations for images that are a multiple of 16 in width, so maybe try using 128 pixel wide images and see if that helps.


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