OK, here is a little tutorial about how to get rFactor1 gmt's into 3DSMax.
This is for 3DSMax2010, because that is the last Version where ISI-Tools to convert to gmt's are available.
But the scheme is the same for e.g. Max2009, you only have to get the matching ISI-Plugin for your Max-Version.
I hope i don't forget something to mention, if you find any missing things or mistakes in the description, please post here.
At first do the following things:
1. Get the rFactor Max Plugin for your Max Version from the
rFactor1 Dev-Corner.
In this case we use the one for the 2010 Max Version
Download rFactorMax2010_32bit.zip
Extract the zip file into the 3DSMax2010\plugins folder
2. Get the gmt-importer.
Download importGMT2.zip
Extract the zip file of the importer into the 3DSMax2010\Scripts\Startup folder
3. Get the rFactor Mas-Tool to extract the MAS-files.
Download mas_203.zip
Extract the zip-file into a folder of your choice.
4. Open the Mas-Tool, open the Coreshaders.Mas that you can find in:
[your rFactor1 Installation folder]\GameData\Shared
and extract the whole content into the 3DSMax2010\hardwareshaders folder
Now open 3DSMax and click on the Utilities-symbol (the hammer) at the right upper side, then in the opening windowclick on the Button "Configure Button Sets", set the "Total Buttons" to 2 and add "MAX Script" and "GMT Converter v2.45c"with a doubleclick from the left side Window.
Then safe the new Set e.g. as "rFactor 1" and click "OK".
After that is done, you can choose this set by clicking on the Button "Sets", as the active one.
When you want to get the gmt files into Max now, you can extract the Mas-files of a track or car with the Mas-Tooland put the content into a new folder.
I always would suggest to put the gmt and textures together into the same folder, because you don't have to set any paths in Max then.
When your work is done, the gmt and textures can be seperated again before you build the new MAS-files.
When all needed MAS-files are extracted, open 3DSMax and click on the Button "MAX Script" from your new Button-Set.
A new menue opens where you can choose the "GMT2 Importer" in the Utilites Dropdown-menue.
In the now opening menue, you can choose between "Import a single File" or "Import a Directory".
To import a complete track, you choose "Import a Directory", point to the folder where the extracted gmt's are and click "OK".
Now the gmt's should get loaded what can last a while, depending of the amount of gmt's and textures and your PC-specifications.
Be patient, it sometimes can last REALLY a while.
(To export the objects from MAX into rF1 gmt format, just click on the Button "GMT Converter v2.45c" from your Button-Set, to open the export-dialog.)