Q: I have been messing around with 3ds4 at school and I am trying to do something that well I just can't figure out... (grin)

I would like to be able to make a wood floor that will reflect what is above it. I move a camera around and would like it to work in an animation.


A: For your wooden floor you need a so-called Automatic Flat Mirror (along with the texture mapping...). In the Material Editor, create the material, then go to the last mapping slot and click on the A sign. Now the slot says Automatic. Click on the word to adjust the settings. Turn Flat Mirror to Yes and select OK. It is VERY important how you assign this material to your object. If you have a 3D floor (like a flat box), select only the upper faces (Select/Faces/Window) and assign the material to the selection (Material/Assign/Faces *Selected*) Because you might have texture mappings, you still need Mapping coordinates, but they have nothing to do with the reflection itself. Never assign a flat mirror to a whole object.

It is impotant to know that the mirror is visible only at the side with the normals, even with Force-2-Sided ON. And two flat mirrors cannot see each-other's reflections! (Non-flat can, but they work bad with flat surfaces.)