Boolean Operations on Imported Objects
Note: It is necessary to edit the way the DXF behaves in a Boolean operation. So you need to select the "E". Then select the "Solid When Boolean Rendering" box.
If you do not select this the object will behave as a shell instead of a solid.
Import your object into Bryce in the usual manner by selecting "File" from the menu and then "Import Object".
Once you have your imported object into Bryce you will most likely have to ungroup it by clicking the U.
Ungrouping the objects is necessary to get to the base models. You will need to ungroup all of the RDS model groups. You will know there are no more groups to ungroup when the "U" is not in the selection options.
Next select the "E" for edit and select the "Solid when boolean rendering" box.
When doing this tutorial, I found that RDS models do not necessarily have to have this checked. However, you need to know this option is available just in case you have problems with other boolean operations. So it’s a good idea to have this checked just so you get in the habit of doing it.
Don’t forget to smooth it by selecting the "E", dragging the slider to the top, and clicking the smooth button.
With all of the imported object selected, click the attribute box (the "A") and set the attributes to positive for the imports.
Next create whatever object you want to boolean with your imported object (I chose a cylinder) and set its attributes to negative just as you did above.
Position the imported objects and the object you want to perform the boolean with so that they intersect.
Next select all of the objects (the imported object and the negative boolean object and group them)
Now when you render the object it will cut the hole out of the imported RDS object. Why anyone would drill a hole in a gun barrel is beyond my comprehension.