OTOY Forums

hi
i tried to play with octane few times for the past few days. i see a great potential and times of realtime rendering at home coming close.
yet still i lack some knowledge regarding the setup of a scene. tried to use forum's search feature but "blender camera" has given me no results...

can anybody explain howto setup scene regarding camera and light? is there a way for octane to use blender camera and some meshlights?
tried to setup simple interior but couldnt get the camera right and when played with materials / hdr / lens settings - octane crashes often - dont know if this is related to my machine or OS or driver (recent)

nevertheless octane have already made a great change - best wishes RAD&TEAM - hope i can afford it sometime (non-commercial license pls!)

cheers

tom

Hey Tom. Currently Octane is not able to import your camera position and settings. Mesh emitters arent available yet either. For the crashes, its related to Octane, everyone have those problems.

Cheers

Chris wrote:Hey Tom. Currently Octane is not able to import your camera position and settings. Mesh emitters arent available yet either. For the crashes, its related to Octane, everyone have those problems.

Cheers

okay - may i ask then how do u get yours UV maps eksported? from blender via export script...i mapped them and they render within blender but not within octane...

You can bake your blender light rig on an HDR file.
Make a chrome sphere in your blender and bake reflections of the chrome sphere.

You end up with an HDR that emmit light inside Octane just like your meshlight in blender.

Simple

I dont use Blender, i use 3ds Max & Maya.
My guess is that you havent put your textures and OBJ file in the same folder, or perhaps there is something wrong with your export settings.

hey,

here's the optimal settings in blender to export to OBJ.
just make sure you have UV mapped your objects that you want to add textures onto prior to exporting,
and blender will also export the diffuse maps to the OBJ file,
and these should be loaded automagically by octane when you import the OBJ.

blender will also copy the textures to the directory where you export the OBJ file.
you can examine the MTL file that gets written together with the OBJ file with a text editor like notepad,
to check what blender wrote, eg the full paths to the textures.
if no full path is given, just the texture image file eg texturefile.jpg or so,
it octane will look for it in the same directory as the OBJ and MTL file are.

Radiance

we're in the process of setting up some documentation about this and other 3d apps.

Radiance

thanx rad!

Sam wrote:You can bake your blender light rig on an HDR file.
Make a chrome sphere in your blender and bake reflections of the chrome sphere.

You end up with an HDR that emmit light inside Octane just like your meshlight in blender.

Simple

thanks - can u explain how exactly? how to setup scene regarding scene size, where to position the lights? what type of lights is best to use and how to save it later (.exr ?)

i didnt find anything on goole...

Take your favorite model
Make a nice light rig inside blender
Replace your favorite model by a chrome sphere (approx the same size than the model)
Make your chome sphere only 100% reflective
Bake the reflection of your sphere in a .exr or .hdr file
Delete your light rig inside blender
Replace the chrome sphere by your favorite model
Put the .exr or .hdr on a big sphere or in the environement slot
Adjust the big sphere size or the environement size
Render
Done

What do you don't understand ?
By the way I don't use blender, I only baked HDR in Cinema 4D or lightwave but its always the same method.
I didn't find tutorials on internet, I read that from a book.