Yes, you can tweak the Octane materials for OBJ proxy objects, and those materials are saved with the Rhino scene.1. Will we be able to tweak materials once they are imported from the mtl file?
Not sure I understand this question - same as 1)? You can edit the Octane material for a proxy OBJ in the plugin. Just "material pick" the material in the Viewport, or select the host object.2. Do you intend on letting us assign materials for referenced obj's like in standalone?
Not currently possible, but may be in the future. Ideally materials could be interchanged between all the plugins and Standalone, but this will require new functionality in the Octane API.3. Will we be able to import material macros from standalone?
Paul