Interior Scene, help please!

Forums: Interior Scene, help please!
Discuss or ask critique about your current works
Forum rules
Important notice: All artwork submitted on our public gallery forums gallery forums may or may not be used by OTOY for publication on our website gallery.
If you do not want us to publish your art, please mention it in your post clearly. (put a very red small diagonal cross in the left right corner of the image)
Any images already published on the gallery will be removed if the original author asks us to do so.
We recommend placing your credits on the images so you benefit from the exposure too, and use a minimum image width of 1200 pixels, and use pathtracing or PMC. Thanks for your attention, The OctaneRender Team.


For new users: this forum is moderated. Your first post will appear only after it has been reviewed by a moderator, so it will not show up immediately.

This is necessary to avoid this forum being flooded by spam.

Interior Scene, help please!

Postby jsuarezbattle » Fri Feb 17, 2017 9:27 pm

jsuarezbattle Fri Feb 17, 2017 9:27 pm
Hey all, C4D Forum seems to be locked for new posts, and I really need help.

Rendering interior scene, cloning Octane lights on the ceiling, and there's a window with a daylight system outside. For some reason render is super noisy between the ceiling and the walls, no matter what I do.

Running a 2x GTX 1080 system / Octane Render C4D V3.05.3 / 2.06 million triangles


I am using DL because Path tracing and PMC is taking way too long. I am rendering an animation at 4K resolution so I can't do 2 hours per frame, need to stay quick, with DL its around 25 minutes/frame. Post production noise reduction helps a bit but I really need to figure this out the best that I can straight out of C4D.
jsuarezbattle
 
Posts: 7
Joined: Fri Feb 17, 2017 7:57 pm

Re: Interior Scene, help please!

Postby aoktar » Fri Feb 17, 2017 9:37 pm

aoktar Fri Feb 17, 2017 9:37 pm
Have you watched render optimisation video tutorial?
Octane For Cinema 4D developer / 3d generalist

3930k / 16gb / 780ti + 1070/1080 / psu 1600w / numerous hw
User avatar
aoktar
Octane Plugin Developer
Octane Plugin Developer
 
Posts: 13429
Joined: Tue Mar 23, 2010 8:28 pm
Location: Türkiye

Re: Interior Scene, help please!

Postby jsuarezbattle » Fri Feb 17, 2017 9:54 pm

jsuarezbattle Fri Feb 17, 2017 9:54 pm
aoktar wrote:Have you watched render optimisation video tutorial?


Yes, and I have also read the documentation and FAQ's posts, nothing seems to help. Increasing samples doesn't help. Any tips you can give me? any other information you need to see to help me out?
jsuarezbattle
 
Posts: 7
Joined: Fri Feb 17, 2017 7:57 pm

Re: Interior Scene, help please!

Postby aoktar » Fri Feb 17, 2017 10:06 pm

aoktar Fri Feb 17, 2017 10:06 pm
Spending the your time on everything and testing will help much to understand how works and affects the things. Your render times are crazy long for this kind of scene.

Don't use high poly counts on emissive geometry.
Don't put them under transparent objects.
Use lowres dummy objects for illuminating the scenes.
Increase samples of emissions.
disable caustics by caustic_blur=1 or near.
Check coherent_ratio and other parameters.
Check forum posts for sample scenes and for previous posts about optimisations.

check this: viewtopic.php?f=5&t=43062&hilit=corona+demo+scene&start=30
Octane For Cinema 4D developer / 3d generalist

3930k / 16gb / 780ti + 1070/1080 / psu 1600w / numerous hw
User avatar
aoktar
Octane Plugin Developer
Octane Plugin Developer
 
Posts: 13429
Joined: Tue Mar 23, 2010 8:28 pm
Location: Türkiye

Re: Interior Scene, help please!

Postby jsuarezbattle » Fri Feb 17, 2017 10:19 pm

jsuarezbattle Fri Feb 17, 2017 10:19 pm
aoktar wrote:Spending the your time on everything and testing will help much to understand how works and affects the things. Your render times are crazy long for this kind of scene.

Don't use high poly counts on emissive geometry.
Don't put them under transparent objects.
Use lowres dummy objects for illuminating the scenes.
Increase samples of emissions.
disable caustics by caustic_blur=1 or near.
Check coherent_ratio and other parameters.
Check forum posts for sample scenes and for previous posts about optimisations.

check this: viewtopic.php?f=5&t=43062&hilit=corona+demo+scene&start=30



Thank you Aoktar, but any tips on getting rid of that noise while keeping render times decent? We need to render about 2000 frames so really need to stay below 30min per frame.
jsuarezbattle
 
Posts: 7
Joined: Fri Feb 17, 2017 7:57 pm

Re: Interior Scene, help please!

Postby aoktar » Fri Feb 17, 2017 10:24 pm

aoktar Fri Feb 17, 2017 10:24 pm
These are main tips to get better render times and less noise. Always evaluate and change illumination sources to see differences. There's no exact one solution. It can be differ by scenes and objects.
I hope some artist see this topic and post better explanations for you.
Octane For Cinema 4D developer / 3d generalist

3930k / 16gb / 780ti + 1070/1080 / psu 1600w / numerous hw
User avatar
aoktar
Octane Plugin Developer
Octane Plugin Developer
 
Posts: 13429
Joined: Tue Mar 23, 2010 8:28 pm
Location: Türkiye

Re: Interior Scene, help please!

Postby jsuarezbattle » Fri Feb 17, 2017 10:47 pm

jsuarezbattle Fri Feb 17, 2017 10:47 pm
aoktar wrote:These are main tips to get better render times and less noise. Always evaluate and change illumination sources to see differences. There's no exact one solution. It can be differ by scenes and objects.
I hope some artist see this topic and post better explanations for you.


Thanks Aoktar, seems like I'm going to have to keep playing with the settings.

As far as ilumination types, what do you mean? IES files? what other type of illumination is available for Octane? Still want to stay with Direct Lighting for quick renders, no PMC or PT.
jsuarezbattle
 
Posts: 7
Joined: Fri Feb 17, 2017 7:57 pm

Re: Interior Scene, help please!

Postby aoktar » Fri Feb 17, 2017 10:57 pm

aoktar Fri Feb 17, 2017 10:57 pm
Yes playing and testing will help much. Here's a very good video for you question. It will explain better than me. It's for V2 but still apliable to V3.

See lighting video.
https://docs.otoy.com/#28Cinema4D_Plugin_Edition
Octane For Cinema 4D developer / 3d generalist

3930k / 16gb / 780ti + 1070/1080 / psu 1600w / numerous hw
User avatar
aoktar
Octane Plugin Developer
Octane Plugin Developer
 
Posts: 13429
Joined: Tue Mar 23, 2010 8:28 pm
Location: Türkiye

Re: Interior Scene, help please!

Postby Diepgroen » Sat Feb 18, 2017 2:15 am

Diepgroen Sat Feb 18, 2017 2:15 am
There is a cheat which seems to reduce noise and render times by 70% but you have to be carefull because it can make your render look flat. I think if you can balance this technique out. It should work.
This technique was aimed at interior scenes and suggested by a user RyanRoye in the Lightwave Plugin forums

Thread: https://render.otoy.com/forum/viewtopic.php?f=36&t=58805#p301855

Let us know if this improves your render.
Diepgroen
Licensed Customer
Licensed Customer
 
Posts: 5
Joined: Sun Nov 27, 2016 2:22 am

Re: Interior Scene, help please!

Postby jsuarezbattle » Sat Feb 18, 2017 2:42 am

jsuarezbattle Sat Feb 18, 2017 2:42 am
Diepgroen wrote:There is a cheat which seems to reduce noise and render times by 70% but you have to be carefull because it can make your render look flat. I think if you can balance this technique out. It should work.
This technique was aimed at interior scenes and suggested by a user RyanRoye in the Lightwave Plugin forums

Thread: https://render.otoy.com/forum/viewtopic.php?f=36&t=58805#p301855

Let us know if this improves your render.


Thank you for the input. I was indeed trying to have my walls be emissive, but then the render was looking SUPER bright, even with the emission set to 0.5.

My walls are white, so I can cheat by making them emissive, which I am going to ask, this would be achieved by adding a texture emission to the emission material correct? which is what I am doing. How is the person in the post you suggested doing it if the walls are so dark?

I tried this on the walls and ceiling to get rid of those dark areas, I'll try it again soon and post some pictures. Reducing render times by 70% would be great!
jsuarezbattle
 
Posts: 7
Joined: Fri Feb 17, 2017 7:57 pm
Next

Return to Works In Progress


Who is online

Users browsing this forum: No registered users and 3 guests

Thu Jul 09, 2020 2:20 am [ UTC ]