When you use the “upload files” button to import 3ds files into 3DXplorer objects or scenes, these tips can be helpful:
The texture files should be placed in the same folder than the 3DS file itself at the time of upload. 3DXplorer will find them.
It’s recommended that texture files width/height don’t exceed 512 pixels. You can always reduce the size of a texture (with Photoshop, Paintshop…) without altering its visual aspect. Only the resolution will decrease as you decrease the size of a texture.
To keep good real time performances, it’s recommended to avoid “big” textures in a scene. All featured websites have less than 10 “big” textures.