Rendering at 5k in Cororna 6 HELP

[hunter1st]

Hi guys, can you tell me if there is something special i have to do in the render setting to get my machines to render a 5k image? I Tried sending it but it gets stuck on the calculation stage. I have 16gb of ram.

Any help would be great


Thanks

[Juraj]

5K rendering can take 5GB, but also 50GB :- ) It does depend on your scene. Do you have displacement in your scene ? Does it render in low-res ? How much ram does it eat then ?

[racoonart]

You should also check your "internal resolution" setting. It should not be used (= 1) when rendering big resolutions.

[johan belmans]

If you are using Max, make sure "Page Large Images to Disk" is switched off.
You can find it under Asset Tracking/Global Settings and Defaults for Bitmap Proxies.

You always can split up your images in four parts, render them out seperately (with blow up if I am not mistaken) and stick them together in for example Photoshop.

Good luck

[hunter1st]

5K rendering can take 5GB, but also 50GB :- ) It does depend on your scene. Do you have displacement in your scene ? Does it render in low-res ? How much ram does it eat then ?

Hi Juraj,

Its is a memory issue because i almost run out ram during parsing. Its only a small scene of a bathroom with a small displacement on some towels. It renders fine at 3k.
I did get it working after reading on another forum about the internal resolution. But this isnt really a fix for the problem as it just renders really noisy and producing what looks like fire flys that never converge. I had to smash a load of neat image noise reduction on it to get a decent image.

I hope this is something that will be fixed in future releases? Or should I just buy more ram lol. Currently I have 32gb

[hunter1st]

If you are using Max, make sure "Page Large Images to Disk" is switched off.
You can find it under Asset Tracking/Global Settings and Defaults for Bitmap Proxies.

You always can split up your images in four parts, render them out seperately (with blow up if I am not mistaken) and stick them together in for example Photoshop.

Good luck

Thanks Belly

I always leave page large images to disk off. Its off by default too i think. Splitting my image into for isnt really what I want to do but its an option i suppose.

[Juraj]

There must be some other issue in that scene.

Internal resolution isn't problem, I am rendering 7680px in Internal res=2, so 15k px width, and even the gigantic scene with forests, disps etc. (Kogan house), took only 20GB.
Subdivide your towel mesh, and then limit your max. disp subdiv to some low number (8?) and see if it doesn't give you indentical result.

What is the total ram usage with and without disp ?

Also, internal res doesn't affect overall quality, noise or 'artifacts'. It just downsamples internally after tone-mapping so you have cleaner edges around highlights. Nothing more, nothing less.

[hunter1st]

There must be some other issue in that scene.

Internal resolution isn't problem, I am rendering 7680px in Internal res=2, so 15k px width, and even the gigantic scene with forests, disps etc. (Kogan house), took only 20GB.
Subdivide your towel mesh, and then limit your max. disp subdiv to some low number (8?) and see if it doesn't give you indentical result.

What is the total ram usage with and without disp ?

Also, internal res doesn't affect overall quality, noise or 'artifacts'. It just downsamples internally after tone-mapping so you have cleaner edges around highlights. Nothing more, nothing less.

Hey Juraj,

My ram usage was 30gb and i have 32. Im thinking it may have been the displacement on my towels. I set the screen size under displacement to 0.4? is this too low?

I just rendered the final image with Internal Res at 1. im going to get a more powerful machine. loving corona atm.

Quick question though. How do i activate the VFB adjustments while rendering? so i can tweak the image live? I had it in the previous build but its gone in the latest alpha.

[Juraj]

Yeah, <1 and default max 100 subdivs can generate..what, tens of millions of polies for literally zero additional detail.

<1 is literally sub-pixel detail which at 5k is almost absurdly obscene."

Click on 'Tools'

[hunter1st]

Yeah, <1 and default max 100 subdivs can generate..what, tens of millions of polies for literally zero additional detail.

<1 is literally sub-pixel detail which at 5k is almost absurdly obscene."

Click on 'Tools'

ok cheers, ill make sure i keep it above one in the future


isn't the tool bar meant to be in the VFB?  see the image

[romullus]

isn't the tool bar meant to be in the VFB?  see the image

What version is this?

[hunter1st]

isn't the tool bar meant to be in the VFB?  see the image

What version is this?

hey romullus

well it was meant to be v7 for some reason my tools bar wasn't there. Just reinstalled it, now its fine.

cheers