3dmax how to change the direction of the floor grain
Add a -UVW texture modifier to your floor in the modifier, then point the UVW map modifier, rotate it with the rotary tool, and remember to turn into the U Sub-level inside to go, otherwise the whole floor will rotate!
Use the uv map in the modifier
1. Open the scene and render it in the perspective. 2. Find the floor map, right mouse button rotated 90 degrees clockwise. 3. To return to the scene, the floor texture orientation has changed and rendered in the perspective for validation.