Actually, that's OpenCL. And if they use OpenCL, AMD will have the advantage.

Are you saying that if they DO use CUDA, they still won't use it for stitching? Why not? What good can CUDA do besides that?

EDIT:
The thread you linked me to had this,
"We will never go for CUDA, because it is proprietary. If we are going to use more GPU power, it will be through OpenCL for cross-hardware concerns. BTW : we already made test with OpenCL : it is really good."

Is that the word of an actual Kolor employee or just someone on the forums? How can we be sure?

Last edited by Track (2013-01-09 18:31:43)

mediavets wrote:

Track wrote:

The thread you linked me to had this,
"We will never go for CUDA, because it is proprietary. If we are going to use more GPU power, it will be through OpenCL for cross-hardware concerns. BTW : we already made test with OpenCL : it is really good."

Is that the word of an actual Kolor employee or just someone on the forums? How can we be sure?

That's the word of Alexandre Jenny one of the founders of Kolor.

Ah, thank you. I e-mailed him. Hope he responds.

Hi all,

Autopano use GPU only through OpenGL shaders. No OpenCL, no CUDA.
Why ? Mainly for compatibility reasons across architectures (Mac/Linux/Windows) since manufacturers does not provide same support on different archs.

Regards,
Thomas

Hello Georg,

1. we can buy our NVIDIAs or our AMD cards according our other preferences (3D blender, gaming, PS, price, whatever) and both are exchangable in quality and in autopano power?

Both are supported. I cannot give any opinion about quality of them. The gpu is used the same way for nvidia and amd, so at equivalent power, performance should be the almost equivalent.

2. Does autopano profit from more GDDR Memory?

If I understand well, GDDR is the momery located on the graphics card, and then is used to store textures and other graphics stuff, so yes we benefit from that.

3. can autopano profit from 2,3,4 graphic cards in one Computer (SLI by nvidia, Crossfire on Radeons) or does autopano only use the Memory of one graphic card?

No, Autopano only use 1 gpu.

4. is it planned for 3.1, 3.2,...,4.0 version that autopano also can use (by choice, automatically, by settings) the graphic card for rendering or other stages except the preview?

There are plans to improve performance of Autopano, and then using more the gpu is one way to achieve that.

Regards,
Thomas

gkaefer wrote:

Hi Thomas,

thanks for your information. good to know point 3. so investing currently money in one card with more memory is not "wasted" money, whereas buying two lets say 4GB cards is wasted...
and I really hope this is on the todo/feature/whish list for a future version. One 8GB card for 4000euro or using 2x4GB cards for 2x500euro is not only a technical issue

Liebe Gruesse,
Georg

So glad that I bought two 85 euro cards to find that out ;-) Crossfire did kick in but APG did nothing with the second card, not even when having two editors open, as situation where it should not be to difficult to use the second card for the second editor.........

i can understand using two cards for one editor is a bit hard, but alternating each next openen editor to another card should not be that much a trouble.

When editing lots of panorama's it is nice to alt-tab to another editor while waiting for one preview to finish.  Just when I open up four ore more editors that one GPU is just not fast enough....

HansKeesom wrote:

It would really speed up my workflow.

It would speed up your editor. Nothing else afaik.

best, Klaus

Last edited by klausesser (2013-03-24 12:58:03)

I recommend having a look at this video :

https://developer.nvidia.com/content/nv … tc-keynote

(2h30mn but very instructive !)