Octane material in UV Editor

[aneuwahl]

Hello,
I'm experiencing an issue in UV editing with Octane materials.
Using the unwrap texturing method, when I draw the rectangle to show the texture I get a grey rectangle and the texture also disappears from the object.
Using a standard non-Octane material works fine.

Two identical objects

Normal behaviour with standard material

This is what I get applying an Octane material to the object

Another issue evident in the first image is that in rendered viewports objects with Octane Material applied don't receive shadows...



My setup: Win7 64 bit, 8 GB ram, GTX560Ti videocard with 1GB vram , Nvidia 335.23 driver, Rhino 5 SR8 64-bit build 5.8.40305.11495, OctaneRender for Rhino 1.53.1.22 version, OctaneRender 1.53.1 version.

[face_off]

Hi.

I couldn't reproduce this issue. Could you pls post the exact steps I need to take?

Thanks

Paul

[aneuwahl]

Yes, of course.
I create an object, I assign to it a material with a texture, then in object properties panel in the texture mapping tab I click on the Unwrap button, I select a non-self-intersecting loop of edges on the object (http://docs.mcneel.com/rhino/5/help/en- ... ap_command), then on the same texture mapping tab I click on the "UV Editor" button. Now I'm asked to draw a rectangle, and in the rectangle Rhino places the material texture overlapped with the unwrap of the surface the material is applied to.
This works with a standard Rhino material, but with an Octane material I get the grey rectangle shown above.

[face_off]

Thanks - I've been able to reproduce the issue, and have escalated it to McNeel. I will let you know when I get a response back from them. In the meantime, you will need to change the material type of the object back to "Basic Material" to edit the UV's - doing so will loose the assigned texturemap - and I suspect this is related to the problem.

Paul

[aneuwahl]

Great.
Any idea about the other problem? In rendered viewports objects with Octane Material applied seems to be not receiving shadows...

[face_off]

Any idea about the other problem? In rendered viewports objects with Octane Material applied seems to be not receiving shadows...

I wasn't able to reproduce this. I am getting the same shadows on the object regardless of if it is a Rhino or an Octane material. Are you able to post a single sample scene here which illustrates the problem pls?

Paul

[aneuwahl]

Hmm... Perhaps I'm misleaded by some very bright situations I've been working on recently.
In the first of the above images you can see the left torus tha seems completely flat, but I reused a glossy material that creates this effect (which anyway I think is exaggerated by the viewport renderer).
I'll test a bit more on this...
Thank you

[face_off]

The above issue (UV Editing a mesh with an Octane material assigned) is partially fixed in the next release of the plugin (you will be able to edit UV's, but not see the underlying texturemap). The full fix will be done with Rhino5 SR10 is released.

Paul

[aneuwahl]

Can't wait!


Thank you!