Is it possible to speed up this big hi-poly scene?

[tob]

Hi

 

I have a scene with two vray lights and plastic transparent material on a teapot in 3ds max.

 

 

 

 

I using irradiance map on primary bounce and light cache on second.

 

irradiance map preset: high

 

light cache subdivs 1000

 

image sampler: Apatice DMC

 

 

I want to render this really big like 6000-7000 pixel height, so I want to optimize it a bit.

 

 

Is it possible to optimize the vray settings for better render speed without to lose visible (minimal) quality?

 

 

I attached the scene file

[Jason Matthews]

Can you post your settings instead of the max file? I do not have vray on this laptop.

[BrianKitts]

yes.... use a low irradiance map preset, but boost the sample count to compensate.... you'll get much faster render times.

 

90% of my scenes are rendered rendered with either a low or med irradiance map and 30/20 samples for exteriors, and 50/20 for interiors.

[tob]

I attached the the settings in my files.

 

 

BrianKitts

Thanks for the tip, I try that

[BrianKitts]

WOOOOOO!!!!! where did you get that setup? EVERMOTION????

 

Turn your global subdivs down from 6 to 1. Fix a problem where it lies, not in the globals!

[Jason Matthews]

I definitely agree with Brian. Reduce the IR to medium preset. How about posting a rendering? The only other thing that jumps out at me is the noise threshold in the DMC Sampler. Maybe increasing it to 0.01 will reduce render time too. If I may ask, why do you have all of the settings so high? Are you having issues with noise or splotches?

 

If tweaking these settings doesn't work maybe you should reset Vray to the default settings and start over. That way you can tweak things depending on the issues you are having.

[tob]

If found settings in a tutorial and mixed them with other settings I read about rendering in high quality.

 

No I don't have any problems with noise and the only problem I have is with straight lines in the reflections ( I can use more iterations on meshsmooth) But the biggest problems is the rendertime.

 

 

I'm not ready with my model only with the material and the lighting. I attached a render with a teapot.

 

 

 

maybe I try to reset my settings and start with the "common settings" that vray recommends?

[erickdt]

Can I ask why it is you're rendering this so large?

 

E

[tob]

I want to print it to on a large epson printer 100cm width.

[erickdt]

Hmmm... Are you printing this for some purpose other than to see whether or not you can render something out large enough to print it at that size and resolution?

 

E

[Nic H]

complex scene containing one teapot?

insane settings btw!

 

would recommend looking into the 'universal settings' as far as antialiasing / DMC goes.

there is a gnomonology video that deals with this.

 

I doubt you even need GI in this scene tbh - whats going to be slow in this 'scene' is the raytracing and AA.

[tob]

I printing it out at about 1000mm x 700mm at 300 dpi that's why, and yes this is more like a test. and I don't want to interpolate it from smaller size when it's possible, with my digital camera I have to interpolate it up.

 

 

I have test settings posted here and I get some better results (only tryded on small rederings) But still it's very slow.

[erickdt]

That's a really large image you're trying to render out there. There have been very few times in my career that I've rendered something out that big. To make things harder on yourself you have one very large, what is supposed to be smooth object as the subject of your rendering. In most cases your rendering a scene with a series of object and structures in it. Because of this none of them are very large in the rendering unless they're very close to your camera. The closer something is the more obvious its flaws are going to be such as the faceting that you're dealing with now. eally the only way to deal with a problem like this (according to my limited MAX modeling knowledge) is to use meshsmooth.

 

I have to say though, this seems like kind of a pointless excercise....

 

E

[tob]

complex scene containing one teapot?

insane settings btw!

 

would recommend looking into the 'universal settings' as far as antialiasing / DMC goes.

there is a gnomonology video that deals with this.

 

I doubt you even need GI in this scene tbh - whats going to be slow in this 'scene' is the raytracing and AA.

 

 

My model is not ready yet thats why i ut a teatpot.

 

I going to try the "universal settings

 

I tried to turn of GI and it's much faster and I don't see any difference i low resolutions like 600px maybe it's visible in larger renderings?

 

Anyway thanks for every answers...

[Stephen Thomas]

Seems to me you're going about this all backwards. What's the point of trying to troubleshoot one scene then applying those settings to a completely different scene? Get your model finished, stick with the presets first off rather than just changing values to arbitrary numbers all over the place, then if you come up against specific issues ask again. This is kinda pointless at the moment if you don't mind me saying...