This is often caused by a vertex count that is too high for the old RenderWare engine. Try simplifying your mesh (Decimate) to reduce the polygon count.
The DFF doesn't contain the actual images; it only contains the names of the textures. Make sure your TXD file has images with names that exactly match the material names in your OBJ. Summary Table: Which Tool Should You Use? Learning Curve Blender (DragonFF) General modding, buildings, props ZModeler 2 Cars and Vehicles Paid/Trial 3ds Max (Kam's) Advanced users, complex rigging Professional Subscription convert obj to dff
Check that your materials are named correctly to match your TXD file. Apply all transformations ( Ctrl + A > All Transforms). This is often caused by a vertex count
Download the latest version of the DragonFF plugin and install it via Edit > Preferences > Add-ons in Blender. Make sure your TXD file has images with
Go to File > Import > Wavefront (.obj) and load your model. Prepare the Model: