When exporting 3D model to BIMx with Global Ilumination activated, the
process is so slow than is unusable. We need multithreading core for
this process so that time for that export process is reduced eight, ten
or more times.
I can't understand why we can do something so common like a stair that
overlaps itself. I know you can do with two or more stair objects, but
this is a tedious work and simply imposible in a stair made of steel
extruded pieces with their intersection...