The concept is simple: It is a list of layers with a name, a material and a thickness. It can be attributed to Arch objects instead of their normal Material.
Not all of the Arch objects can do something with it. So far:
- Walls and Panels use it to create multi-layer walls and panels. Windows will correctly create a hole through all the layers.
- Windows use it to attribute different materials to the different components of the window
So far it won't solve the problem of what happens when two multilayer walls meet, but I think this is already a good step forward. I'm specially happy to have found a simple, unified way to handle more complex wall definitions. The multimaterial system can easily be extended to add more properties to material layers if needed.
Another consequence is that now the "migration" of Arch to multi-solids is more or less complete. Before, the paradigm was that each arch object = one solid. Now, it is: each arch object = any number of solids.
