Thanks for your feedback, vadhil. The program is "Bob's Track Builder Pro", available on steam. This software exports directly to rFactor. You don't need any other program. The creator (Brendon Pywell) provided a lot of detailed tutorials on youtube. On racedepartment "Downloads - Other Games" you can find more trackside objects for Bob's like trees, tirewalls and so on (called "xpacks"). Furthermore you can use my own textures of course (like grass, gravel, grounds, slopes) located in the track folders. They are already unpacked in dds-format for direct use. Maybe the main thing is to avoid sharp border edges between two different textures. To solve this problem the blending function within Bob's Track Builder is helpful - but still a bit nerve-racking ;-)
