not correctly assign materials

Hi 3dcgi,

I am going to take a guess at what the problem might be as there is not enough information in the puzzles to diagnose what is happening.

In order to change materials from one material in your scene to another those materials have to already exist and be assigned to an object.

This can be done by creating some simple triangles and assigning each material so a single object/triangle that is out of camera view.

If you don’t do this the material you had assigned is removed from memory and there is no way to get it back. Also if it’s not assigned to a material at the time of load or at the time prior to you needing it…it can not be called upon to replace an existing material.

Example:
If your scene has a cube and in your 3d project file you have the a chrome material assigned to the cube but also in you material libray you have a red material and a blue material but they are not assigned to any object in your scene. You export to V3d. You will not be able to assign the red or blue to the cube.

However, if you add two triangles objects to the scene, a red triangle with the red material and a blue triangle with the blue material export the scene to v3d. Through puzzles, you will be able to change the color of your chrome cube to red or blue.

Good. Correct One addition: An additional material user may be represented by any hidden (invisible) primitive. For example, you can assign 6 material to one cube: one material per face. Or you can use a sub-divided plane with the same result. The main condition: materials must have additional users to store them in the scene if they are supposed to be replaced.