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Author Topic: Texture with texture count larger than 1 is very slow on screen  (Read 4289 times)

3DandVR

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Texture with texture count larger than 1 is very slow on screen
« on: October 03, 2017, 12:29:18 AM »
Hello,

it is my first question here. I am from Austria and my English isn´t the best ;)
Some experience I have made with Photoscan in the last year but now I have larger projects.
They are made from ~1200 photos 24MPixel.

With my workstation Dual Xeon E5-2689v4, 128GB RAM and two GTX1080ti all works fine.
But now I ran into an issue with the texture building process on larger textures.
Uploading to other sites is sometimes restricted to 4k or 8k texture files.

I hope somebody can help me with my problem.
My Version of Photoscan Standard is 1.3.3 Build 4827, Windows 10 pro, Nvidia Driver is 385.41

When I build a texture for my model with 16M Faces at 16384x16384 x1 there is no problem to view it with ~5FPS (pan, tilt, moving) on the general screen.

But when I made a 8192x8192 x4 or a 4096x4096 x16 texture, there is now no way to view it. Even a 4096x4096 x2 does not work. It takes now for every step 20 seconds to react, to move, tilt or pan and sometimes Photoscan isn´t react at all.

Is there a way to do it properly, is it normal, or ist an higher texture count only good for high-field/Ortho models?

Thank you all for helping.

Alexey Pasumansky

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Re: Texture with texture count larger than 1 is very slow on screen
« Reply #1 on: October 03, 2017, 08:48:15 AM »
Hello 3DandVR,

Can you please confirm, if the same behavior is observed in the version 1.3.4?
Best regards,
Alexey Pasumansky,
Agisoft LLC

3DandVR

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Re: Texture with texture count larger than 1 is very slow on screen
« Reply #2 on: October 05, 2017, 09:48:18 AM »
Hello 3DandVR,

Can you please confirm, if the same behavior is observed in the version 1.3.4?
With Version 1.3.4 5067 I observed the same behavior.
I tried 4096x4096 x4

Is it possible that Photoscan uses only the onboard GPU from the Server Motherboard instead of the GTX1080ti for the texture?
Without texture viewing speed is normal fast even at 40M Faces.

I have both GTX1080ti, VOB-Support and Performance optimization enabled. SLI is not enabled.

SAV

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Re: Texture with texture count larger than 1 is very slow on screen
« Reply #3 on: October 05, 2017, 10:09:32 AM »
Hi 3DandVR,

Maybe check your settings within the NVIDIA control panel and make sure that your GTX1080 Ti is always enabled/activated when using PhotoScan. There is a possibility that your GTX is only used for processing, but not for viewing/rendering purposes, as you pointed out in your last post.

Regards,
SAV




martinho.lourenco

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Re: Texture with texture count larger than 1 is very slow on screen
« Reply #4 on: October 07, 2017, 01:50:30 AM »
Hello!

I experienced the same problem and apparently everything is enabled on the nvidia control panel.

Regards