Fade one material into another

[atoyuser1]

What's the best way of fading out a material slowly so that the material behind it shows?:

Fade

I'd like to fade out the glass material to reveal the red material

Would I have to use a mix material?

[atoyuser1]

Ignore me, I have answered my own question. Mix material all the way!

[bepeg4d]

Ignore me, I have answered my own question. Mix material all the way!

Correct, but, please avoid to use the Mix Material, and prefer to use the Composite Material instead.
Mix Material has several limitations in C4D, works only with 2x materials, it needs to work in conjunction with 2x other node materials so it is difficult to move in another scene, it doesn't work in C4D Content Browser.
Composite Material solves all there limits.
If you select a Mix Material in Material Manager, then go to Live View menu Materials/Convert Material, it will be automatically converted into a Composite material.

Happy GPU rendering,
ciao Beppe

[atoyuser1]

Ignore me, I have answered my own question. Mix material all the way!

Correct, but, please avoid to use the Mix Material, and prefer to use the Composite Material instead.
Mix Material has several limitations in C4D, works only with 2x materials, it needs to work in conjunction with 2x other node materials so it is difficult to move in another scene, it doesn't work in C4D Content Browser.
Composite Material solves all there limits.
If you select a Mix Material in Material Manager, then go to Live View menu Materials/Convert Material, it will be automatically converted into a Composite material.

Happy GPU rendering,
ciao Beppe

ok thanks for clarifying