The BRL-CAD Logo depicts two interlocked nodes. Modeling the new Logo in BRL-CAD in CSG (without NURBS, without polygons) requires some careful arrangement, but can provide an attractive three dimensional rendering that we can use for a number of purposes.

NOTE: The two segments you model MUST be two or more regions hinged together.  You can have center pins or not, you decide, but they MUST join together in some fashion.  Look at a hinge on a door near you.  Also, note that most images of our new logo show the black and red portions not connected but your version of the model MUST connect them together.

The output of this task will be a .g file of BRL-CAD logo and a rendered image.  This command run within MGED should help give you an interesting render:

References:

• http://brlcad.org/images/angelov_256.png
• http://brlcad.org/d/node/92
• Introduction to MGED at http://brlcad.org/wiki/Documentation