Volumetric Generators!

Forums: Volumetric Generators!
Generic forum to discuss Octane Render, post ideas and suggest improvements.
Forum rules
Please add your OS and Hardware Configuration in your signature, it makes it easier for us to help you analyze problems. Example: Win 7 64 | Geforce GTX680 | i7 3770 | 16GB

Re: Volumetric Generators!

Postby profbetis » Sat Dec 22, 2012 8:22 pm

profbetis Sat Dec 22, 2012 8:22 pm
Here is a zip containing the .ocs file and the sphere.obj file as requested! :D
Attachments
VolumetricGenerator_Octane.zip
Here is the scene file with the sphere model file (but you can use any model because it's the material that matters)
(60.74 KiB) Downloaded 464 times
GTX 1080Ti 11GB (3x), Water-cooled
Intel i7-5820K 6-core @ 3.3GHz
Windows 10 Pro 64-bit, 32GB RAM
User avatar
profbetis
Licensed Customer
Licensed Customer
 
Posts: 279
Joined: Tue Dec 21, 2010 11:00 am

Re: Volumetric Generators!

Postby Chris » Sun Dec 23, 2012 9:43 am

Chris Sun Dec 23, 2012 9:43 am
Nice stuff dude :) Thanks! Would it be possible to use this for volumetric lighting also you think?

Chris
________________________________________________________
Win 7 64 | 1x GeForce GTX Titan | AMD Phenom II X6 3.20Ghz | 16GB
User avatar
Chris
Licensed Customer
Licensed Customer
 
Posts: 439
Joined: Thu Jan 14, 2010 5:01 pm
Location: Norway

Re: Volumetric Generators!

Postby FractalBuddha » Sun Dec 23, 2012 5:31 pm

FractalBuddha Sun Dec 23, 2012 5:31 pm
Thank you for sharing. I will have fun with this.
Imagine reality

2 x GTX 560 | i7 | windows 7
User avatar
FractalBuddha
Licensed Customer
Licensed Customer
 
Posts: 73
Joined: Sat Oct 22, 2011 2:26 am

Re: Volumetric Generators!

Postby profbetis » Sun Dec 23, 2012 5:36 pm

profbetis Sun Dec 23, 2012 5:36 pm
Yeah I bet so! Care to try it out and post something? I'm curious as well.

I'm glad you guys are enjoying this! :D
GTX 1080Ti 11GB (3x), Water-cooled
Intel i7-5820K 6-core @ 3.3GHz
Windows 10 Pro 64-bit, 32GB RAM
User avatar
profbetis
Licensed Customer
Licensed Customer
 
Posts: 279
Joined: Tue Dec 21, 2010 11:00 am

Re: Volumetric Generators!

Postby Refracty » Sun Dec 23, 2012 7:18 pm

Refracty Sun Dec 23, 2012 7:18 pm
Great experiments :)
User avatar
Refracty
Licensed Customer
Licensed Customer
 
Posts: 1598
Joined: Wed Dec 01, 2010 6:42 pm
Location: 3D-Visualisierung Köln

Re: Volumetric Generators!

Postby ROUBAL » Sun Dec 23, 2012 9:53 pm

ROUBAL Sun Dec 23, 2012 9:53 pm
Thank you very much for this very interesting setup.

I have played a bit with the settings, and I have added some post production tweaking.

Open the SantaTravel.ocs file and click on the sphere.obj node : you will see the gifts deliveries of Santa all around the world, in real time ! ;)
Attachments
SantaTravel.zip
See Santa delivery travel in real time !o)
(60.38 KiB) Downloaded 323 times
French Blender user - CPU : intel Quad QX9650 at 3GHz - 8GB of RAM - Windows 7 Pro 64 bits. Display GPU : GeForce GTX 480 (2 Samsung 2443BW-1920x1600 monitors). External GPUs : two EVGA GTX 580 3GB in a Cubix GPU-Xpander Pro 2. NVidia Driver : 368.22.
User avatar
ROUBAL
Licensed Customer
Licensed Customer
 
Posts: 2199
Joined: Mon Jan 25, 2010 5:25 pm
Location: FRANCE

Re: Volumetric Generators!

Postby FractalBuddha » Sun Dec 23, 2012 10:20 pm

FractalBuddha Sun Dec 23, 2012 10:20 pm
Here are my first test.

In this one I used sinewave with circular enabled.
The centre of the sphere seam to always be at the centre of the whole model ( the red cube ).
The tree blocks have the same material.
circular.png


For fun I placed a light source in the midle of a bloc with turbulence scattering.
light inside cloud.png


I want to find a way to control where I place the clouds and do not have the surface problems.
Imagine reality

2 x GTX 560 | i7 | windows 7
User avatar
FractalBuddha
Licensed Customer
Licensed Customer
 
Posts: 73
Joined: Sat Oct 22, 2011 2:26 am

Re: Volumetric Generators!

Postby profbetis » Sun Dec 23, 2012 11:41 pm

profbetis Sun Dec 23, 2012 11:41 pm
LOL Roubal that's pretty clever :D

FractalBuddha those are some cool tests! Maybe there is a way to 3D offset the generator so that the center of the sphere is different, like a PSR transformation.

Perhaps we need another map similar to Falloff Map, but instead like "Depth Map" which may not be the best name for it because it would be confused with the traditional meaning. This Depth Map would be like depth from the surface of the object. Like how Stroke works in photoshop, but INTO the object. like submerging it. 3D Distance from the closest surface, or surface normal and measure inwards. idk... I feel like volumetric stuff could be way more involved and controlled.
GTX 1080Ti 11GB (3x), Water-cooled
Intel i7-5820K 6-core @ 3.3GHz
Windows 10 Pro 64-bit, 32GB RAM
User avatar
profbetis
Licensed Customer
Licensed Customer
 
Posts: 279
Joined: Tue Dec 21, 2010 11:00 am

Re: Volumetric Generators!

Postby manalokos » Mon Dec 24, 2012 5:26 am

manalokos Mon Dec 24, 2012 5:26 am
It seems Octane makes rays escape the scatter calculation after some bounces, that is why the clouds are a bit transparent, specially if the volume is very thick.
It would be a great asset to have the possibility to increase this maximum scatter bounce, specially for fog, clouds, smoke, as the current scattering algorithm is not unbiased, nor phisically correct...
manalokos
Licensed Customer
Licensed Customer
 
Posts: 438
Joined: Fri Nov 18, 2011 4:43 pm

Re: Volumetric Generators!

Postby FractalBuddha » Fri Dec 28, 2012 2:55 am

FractalBuddha Fri Dec 28, 2012 2:55 am
I don't really like the result but I share it to help having better one eventually.
I wanted to simulate a fire with smoke in my workplace. The orange shape at top-left is the emmiter.
I placed a plane in front of the camera with settings similar to profbetis

smoke.png
Imagine reality

2 x GTX 560 | i7 | windows 7
User avatar
FractalBuddha
Licensed Customer
Licensed Customer
 
Posts: 73
Joined: Sat Oct 22, 2011 2:26 am
PreviousNext

Return to General Discussion


Who is online

Users browsing this forum: adrianr and 8 guests

Thu Mar 28, 2024 9:10 am [ UTC ]