Interactivity very poor

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Interactivity very poor

Postby mitchino » Wed Jun 19, 2019 6:36 am

mitchino Wed Jun 19, 2019 6:36 am
How can I speed up Octane? I don't mean the actual rendering, I mean during look dev in c4d. If I have the live viewer running, every tiny change I make in c4d has a delay. For example I click on one of the little dots to include an object in the render or exclude it, there is a 2 second delay between clicking the dot, and it's colour changing. Or I double click an Octane material to edit it, again there is a few seconds of delay before the material window opens. It's incredibly frustrating to work like this. If I pause the live viewer everything speeds up, but when I unpause the changes aren't recognised and I have to resend the scene. That then takes a very long time as Octane has to export ALL the materials in the scene even if I only have one showing in the live viewer.

I'm on OSX on a 12x 3.46GHz Cheesegrater with 1 x 1080ti and 1 x 980ti, running Octane 4.04 r2. As I said, when actually doing final renders I have no problem at all with the speed, it's just the interactivity while working that is so slow it's unbearable.
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Re: Interactivity very poor

Postby aoktar » Wed Jun 19, 2019 9:28 am

aoktar Wed Jun 19, 2019 9:28 am
You don't need resend after unpause. Just make some clicks on viewport or elements of scene.
Other than this that sounds like you have a busy gpu operation by the heavy rendering. Are you with eGPU and set priorities for that?
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Re: Interactivity very poor

Postby mitchino » Wed Jun 19, 2019 4:14 pm

mitchino Wed Jun 19, 2019 4:14 pm
Hi Aoktar, my GPUs are internal, the 1080ti is set to be the main card.

I think I've asked this before, but why does Octane have to recompute every material in a document, even if I've only got one material on one object visible for rendering? Is there a way to 'hide' materials from Octane that aren't actually going to be rendered?
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Re: Interactivity very poor

Postby aoktar » Wed Jun 19, 2019 6:26 pm

aoktar Wed Jun 19, 2019 6:26 pm
It has to reload all materials by safety. But has not to reload textures on restart of rendering in Live Viewer. Measure it.
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Re: Interactivity very poor

Postby mitchino » Thu Jun 20, 2019 8:35 pm

mitchino Thu Jun 20, 2019 8:35 pm
I had a hard crash during a render, and restarted the mac - since when interactivity in Octane is about ten times better. I suspect there is a memory leak going on, the longer Octane is running, the poorer the performance gets. Is there a way to purge GPU memory so I can get performance back without restarting the mac?
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Re: Interactivity very poor

Postby aoktar » Thu Jun 20, 2019 9:42 pm

aoktar Thu Jun 20, 2019 9:42 pm
mitchino wrote:I had a hard crash during a render, and restarted the mac - since when interactivity in Octane is about ten times better. I suspect there is a memory leak going on, the longer Octane is running, the poorer the performance gets. Is there a way to purge GPU memory so I can get performance back without restarting the mac?

Rather than a memory leak, you may be on low VRAM/RAM. Just restart C4D for that and close other programs.
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Re: Interactivity very poor

Postby mitchino » Fri Jun 21, 2019 1:56 pm

mitchino Fri Jun 21, 2019 1:56 pm
Restarting c4d doesn't make much difference, restarting the mac is like having a new machine and Octane is fully interactive again.
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Re: Interactivity very poor

Postby aoktar » Fri Jun 21, 2019 2:11 pm

aoktar Fri Jun 21, 2019 2:11 pm
mitchino wrote:Restarting c4d doesn't make much difference, restarting the mac is like having a new machine and Octane is fully interactive again.

It sounds weird so! Are you using different softwares while using Octane?
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Re: Interactivity very poor

Postby mitchino » Mon Jun 24, 2019 9:50 am

mitchino Mon Jun 24, 2019 9:50 am
Usually I have Photoshop open and sometimes Illustrator, and I always have Safari running so I can amuse myself while rendering!
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Re: Interactivity very poor

Postby mitchino » Fri Jul 05, 2019 4:38 pm

mitchino Fri Jul 05, 2019 4:38 pm
Bringing this thread back as I still find interactivity is poor when the live viewer is running.

I notice that when the live viewer is running, and I'm editing materials or objects, or switching on and off render visibility for objects, the octane status bar at the bottom left of the c4d interface says "check other time 2.116" or "check other time 2.093".

Does that mean Octane is stopping me doing things for 2 seconds every time I make a change? It feels like it. What are the 'others' it's checking anyway?
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