Fade Metallic Materials

I am generating an animation set in Bongo, and rendering in Brazil. There are several parts that are individually to fade in and out smoothly. For most of the items, I am using Transparency and Gloss with success. However, two of the items are metallic.

The metallic items are composed of a Brazil Chrome Material, and a Brazil Advanced Material. I know very little about Brazil materials, other than it takes me days to set them up.

At present, I could really use some input regarding a means to fade the metallic materials.

Let me know if this should be posted in the Brazil pages.

You won’t be able to use the Chrome material for fading - you’ll have to use an Advanced Material and set the transparency IOR to 1.0

Thank you. I appreciate the input.

Will Bongo animate the reassignment of materials to an object during animations?