Blender to Octane materials

Forums: Blender to Octane materials
Post, discuss and share handy resources like textures, models and HDRI maps in this forum.
Forum rules
Please do not post any material that is copyrighted or restricted from public use in any way. OTOY NZ LTD and it's forum members are not liable for any copyright infringements on material in this forum. Please contact us if this is the case and we will remove the material in question.

Blender to Octane materials

Postby tommy5 » Fri Jan 29, 2010 9:50 pm

tommy5 Fri Jan 29, 2010 9:50 pm
Hi,
if you use Octane demo and Blender, you might want to set blender materials to get the desired materials in octane.
so here are some tips (all setting in blender exporter and octane importer are default):

- to get diffuse material, set specularity value to zero, and choose color that u want
- to get specular material slide index of refraction ;) IOR above 1.0 (and spec above 0.0)
- in every other situation you will get glossy material, see picture for settings that affect material
- to get textures, best way is to unwrap your model and apply image in UV/image editor, test it with Alt+Z, you can even leave it without material.
You can have multiple images (not UV coordinates) on single mesh.


If you want to get more, you can edit obj/mtl file in text editor, here is little help:
Code: Select all
newmtl material_name
Ka  0.1 0 0      # ambient values                    -> its ambient color in world setting multiplied with Amb slider
Kd  1 0 0        # diffuse values                    -> Ref slider in Shaders panel multiplied by color
Ks  1 1 1        # specular values                   -> Spec slider in Shaders panel multiplied by spec color
Ns  10           # sharpness of specular highlight   -> Hard slider in Shaders panel (roughness in glossy mat in octane)
map_Ka test.jpg  # texture map file name
d  0.5           # transparency amount               -> Alpha slider (reflection in specular mat. in octane)
Ni  1.33         # index of refraction               -> IOR slider   (index in specular mat. in octane)
lum 1            # illumination model.
illum = 1 no specular highlights, illum = 2 light normaly

note that Octane may read them in different way, and have some own settings...
like roughness is converted from blender range (1-511) to octane range (40-10000)

tommy5
cheers!
Attachments
002PathtracingTestMaterials.jpg
Blender2OctaneScreenShot.png
Last edited by tommy5 on Fri Feb 05, 2010 7:31 pm, edited 1 time in total.
Win 7 32bit | Core 2Duo E6550 @ 2,33GHz | 4GB | Geforce GTX260 Core 216
User avatar
tommy5
Licensed Customer
Licensed Customer
 
Posts: 19
Joined: Thu Jan 28, 2010 11:35 am
Location: Croatia

Re: Blender to Octane materials

Postby radiance » Fri Jan 29, 2010 10:22 pm

radiance Fri Jan 29, 2010 10:22 pm
how i about i add more import options to our OBJ import preferences panel,
and add a preset system where you can store profiles.

then people on the forums can help to make the perfect profiles for different apps,
and i include them in the application as built-in presets ?

Radiance
Win 7 x64 & ubuntu | 2x GTX480 | Quad 2.66GHz | 8GB
User avatar
radiance
 
Posts: 7633
Joined: Wed Oct 21, 2009 2:33 pm

Re: Blender to Octane materials

Postby James » Fri Jan 29, 2010 10:38 pm

James Fri Jan 29, 2010 10:38 pm
May I move this to resources?
Kubuntu 9.04 | Nvidia Gainward 9500 GT | Intel Core2 Quad 2.40 Ghz | 4 GB RAM
User avatar
James
 
Posts: 525
Joined: Wed Oct 21, 2009 2:57 pm
Location: Edinburgh

Re: Blender to Octane materials

Postby tommy5 » Fri Jan 29, 2010 10:49 pm

tommy5 Fri Jan 29, 2010 10:49 pm
@james: sure!

@radiance: presets will be great!
btw, dont know how difficult and time consuming is to change/work on OBJ parser, and what long term goal is? to have Octane puged into host apps's via plugins?

tnx!
Win 7 32bit | Core 2Duo E6550 @ 2,33GHz | 4GB | Geforce GTX260 Core 216
User avatar
tommy5
Licensed Customer
Licensed Customer
 
Posts: 19
Joined: Thu Jan 28, 2010 11:35 am
Location: Croatia

Re: Blender to Octane materials

Postby havensole » Mon Feb 01, 2010 6:22 pm

havensole Mon Feb 01, 2010 6:22 pm
Thanks for the info tommy. That really will help how long it takes me to to setup a scene in Octane. It is kind of a pain when one has quite a few materials in the scene. I am curious how the RIB import will work as materials are often tweaked when brought into Octane and it wouldn't make sense to have to go through every frame in an animation to edit the materials. Granted I have only done a little work with RIB and blender and So I might be talking crazy talk. :)
System 1: EVGA gtx470 1280Mb and MSI gtx470 1280 in Cubix Xpander for Octane, AMD 945, 4Gb Ram
All systems are at stock speeds and settings.
havensole
Licensed Customer
Licensed Customer
 
Posts: 463
Joined: Fri Jan 15, 2010 9:31 pm
Location: Rialto, CA USA

Re: Blender to Octane materials

Postby harrisyu » Tue Feb 02, 2010 12:54 am

harrisyu Tue Feb 02, 2010 12:54 am
How about make some TAG in .OBJ file,and we can build script to setup all the parameters that octane need and export?
Or a script system for octane,is more flex to import everything. :D
Seven 64bit | GTX 260 896mb | Phenom II X4 965 3.4GHz | 4GB DDR3
harrisyu
Licensed Customer
Licensed Customer
 
Posts: 14
Joined: Sun Jan 17, 2010 2:34 am

Re: Blender to Octane materials

Postby tony » Tue Feb 02, 2010 9:26 pm

tony Tue Feb 02, 2010 9:26 pm
Hi:

You can tell me how to do in blender for octane:

- Curtain material

- Applying alpha channel. eg tree leaf

Thank you.
tony
 
Posts: 3
Joined: Mon Feb 01, 2010 10:39 pm

Re: Blender to Octane materials

Postby Sam » Tue Feb 02, 2010 9:43 pm

Sam Tue Feb 02, 2010 9:43 pm
Tree leaf use alpha maps
Alpha maps are soon in Octane but not yet available

For curtain you use alpha maps and single sheet SSS (for realistic curtains)
Same thing, alpha maps are not in Octane yet, SSS too is not in Octane yet
http://Kuto.ch - Samuel Zeller - Freelance 3D Generalist and Graphic designer from Switzerland
User avatar
Sam
Licensed Customer
Licensed Customer
 
Posts: 1012
Joined: Mon Jan 11, 2010 10:06 am
Location: Geneva

Return to Resources and Sharing


Who is online

Users browsing this forum: No registered users and 1 guest

Thu Dec 05, 2019 8:25 pm [ UTC ]