After you've linked a DWG file that has been exported from Revit, you may find that some of the materials that were created in Revit could be used on new geometry you're adding while working on the model in 3ds Max. Reusing a material is often easier than creating a brand new one.

For example, let's say a wall element in the Revit project has a brick material that you'd like to use on an object you added to the model while working in 3ds Max. If you simply apply the material to the new object, you'll find that the texture map does not show as it does on the wall that came from Revit. This is because UVW coordinates of the new object are not set up to coordinate with the Tiling parameters of the Revit material.

When using Revit materials with objects created in 3ds Max, there are really two things to keep in mind;

• All materials from Revit use real-world scaling.
• Real-world scaling must be active for objects you've created in 3ds Max.

There are a few way to make sure your 3ds Max objects are using real-world scale.

• If you're working with a primitive object, like a box or cylinder, make sure Real-World Map Size is active.
• For more complex objects, apply a UVW Map modifier and make sure Real-World Map Size is active.
• Assign the object a MapScaler modifier.