I have stopped any further development of this Ruby script.
I'm afraid it stays as it is - warts and all !
Otoy's Octane now has it own custom made SUp exporter which is better integrated and works more efficiently [it has 'binary' coding].

Zorro2 used in conjunction will SectionCutFace will delete the unwanted half of the model [in a copy!] so you can render the section-cut in Octane...
You can get both Plugins from the SketchUcation PluginStore:
http://sketchucation.com/pluginstore?pln=SectionCutFace
http://sketchucation.com ...

Read the start of the OBJ file in a test editor.
It shows the expected relative path to the MTL file - usually it's just the file name as it is in the same folder as the OBJ [e.g. "objname.mtl"].

Read the MTL file in a text editor.
It shows the expected relative paths for any image files used for ...

TIG,
Thank you for the update. It seems that it works faster than previous versions.

PS. I am looking for the line in your code that is responsible for precision. Could you please help. I'd like sometimes to use only four digits and sometimes eight. It would be very convenient to have precision ...

This version has the (c) dates corrected to 2014 etc.
The Help PDF is also updated to suit...
This version is still compatible with SketchUp v2014...
As usual...
Install it by extracting the contents of the ZIP into your Plugins folder, maintaining all helper files within their subfolders, as seen ...

How to install rbz? There is a lot of help :)

https://www.google.pl/search?q=how+to+install+rbz+plugin&oq=how+to+install+rbz&aqs=chrome.1.69i57j0l5.12405j0j7&sourceid=chrome&espv=210&es_sm=122&ie=UTF-8 Assuming you have v8 [latest update, >=M2 ] or any newer SketchUp - v2013 or v2014, then open ...

sorry if it´s a stupid question ...but what file i need to rename whit subfix. rbz?....Octane_loader.rb???Octane_1_00.rb??? i have not the plugins folder I created it...Thanks Yes it is a rather daft idea :?
SO IT'S NO !
Just rename the ZIP with .RBZ at the end.
Then you can Auto-Install its ...

Hi TIG,

Thank you for your time and hard work. Thank you very much.

I want to report a bug when creating animations.
My project is called "animacja". Unfortunately, the plugin creates a file animacja_anim.obj but trying to load animacja.obj and pops up an error.

I have one more question. In ...

This version is also compatible with SketchUp v2014...
As usual...
Install it by extracting the contents of the ZIP into your Plugins folder, maintaining all helper files within their subfolders, as seen inside the ZIP, when appropriate.
Restart Sketchup to auto-load it.
Read the instructions ...

It will crash SketchUp v2014... because it is not compatible with that new version of SketchUp/Ruby !