Fade in

Support Basics & Interface
1

I have an object that has multiple materials applied to different faces. How do I do a fade in of the entire object? Is the only way to key each material? Using Blender 2.55.

2

Try this:

  • add extra material, name it to e.g. ‘alpha’ and do not assign to any face,
  • for every other material turn ON Ztransp and make it as NODE material and in NODE editor, for every NODE material do:
    – add two material slots and output slot
    – in first slot choose NODE material itself and link color channel to COLOR output
    – in second slot choose ‘alpha’ material and link alpha channel to ALPHA output.
    Now you can animate alpha channel of ‘alpha’ material to fade in/out every other material of your object.
3

Thank you, that is a good technique!

4

I tried this and the object fades but it is not seethru. If it is in front of another object, it leaves a hole in that object. Is there a way to make it truly transparent without resorting to ratracing?

5

Enable Transparency>ZTransparency for all materials.