Confused about pixel format for glTexImage2D (for gpgpu programming)

Hello,

I am confused about what pixel format to use for glTexImage2D... I plan on
doing some gpgpu testing/development with OpenGL and DX9 cards (pixel shader
2.0/3.0?)

I fixed a gpgpu tutorial... which had a little benchmark in it... it was for
floating points only...

I am curious about integer performance ?

I learned little from the benchmark except that:

1. Some formats not working (?) or very slow (?) ATI_R, ARB_R (or something
like that)
2. 32 bit floats twice as slow as 16 bit floats.

There are so many pixel formats to choose from according to opengl documents
?!?!?

(Internal as well as the other one ?)

I have NVIDIA GTX 7900 graphics card... I also tried to view a nvidia
document about pixel formats... but it doesn't mention the G70 family...

I am very confused about all of this ?!?!?

What settings would you recommend I supply for the glTexImage2D so I get
best performance on my graphics card ?

Also what would be the best general settings so it works on all graphics
cards ?

Thanks for any help, sigh

Bye,
Skybuck

Skybuck Flying wrote:
> Hello,
>
> I am confused about what pixel format to use for glTexImage2D... I plan on
> doing some gpgpu testing/development with OpenGL and DX9 cards (pixel shader
> 2.0/3.0?)

I don't think this forum the right place for this kind of technical
questions. Doesn't Nvidia have her own web forums for these?

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http://www.swd.gov.hk/tc/index/site_...sub_addressesa

You are confused this is not a webforum.

These are newsgroups.

Bye,
Skybuck.

>>>>> "Skybuck" == Skybuck Flying <> writes:

Skybuck> You are confused this is not a webforum. These are
Skybuck> newsgroups.

oh. I thought it was twitter...