There's not really a need to disable any settings especially the ones that you want to actually adjust. Makes sense, right? And yeah index=1 is what you need. It disables the Fresnel effect.
Also, tutorials are a waste of money. I've never seen a good Octane tutorial EVER. Including the ones in the manuals section. It's like watching a tutorial on how to walk or ride a bike. Pointless. Pure logic and common sense is all you need.
If you want to be ahead of 95% of C4DOctane users, just learn the Octane Render first ( misleadingly named Standalone ). And checkout "Standalone" topics. IMHO the biggest mistake that beginners are making is just focusing on the plugin. The plugin is just a different user interface for Octane Render and it can be confusing sometimes because of the C4D interface limitations that it has to deal with.
I bought c4d plugin when it was still in beta and there was no Mac version then so I couldn't even use it. That's before there were ANY tutorials for it and by the time people started making them I already had finished client projects. That's because I learned the Octane Render first. Every plugin feature just made much more sense after that and I could clearly see the difference between the C4D interface and actual Octane Render features. Today I can also see A LOT of the advantages of the plugin too.
Regards
Milan
