he first step in creating a custom track is the model. To create a model, you can use Sketchup or any other 3D modeling software. Your model should not have more than 10000 polys and not more than 21 textures. After you have created your model, you should export it as .obj and and then you have two opportunities
1. Use EFE: When you use EFE, you only have to click File-New from File-CTR Graphics (CGFX) and select your model as obj.Insert the name of the course (Gctr_GlideLake for example). Then click the save symbol and save it somewhere. Now open the .szs of the course you want to replace and you are done. This is the faster way , but the textures have no transparency and your CT will most likely lag.
2. Use the NW4C Plugins (http://store.dshack.org/index.php?/file/3-ds-and-3ds-hack-pack/). To use them, move the plugins to your Maya/3DSMax folder and start them with the .bat inside the hackpack.Since I use Maya and I couldn´t find out how to use this in 3DSMax, I will explain this for Maya Users. First open