Hi,

Matt S. has left the following comment at Model a "B" using BRL-CAD http://www.google-melange.com/gci/task/view/google/gci2012/7949231:


The rendering looks good


But the model needs some work yet. The key to CSG modelling with primitaves is to think of buiding solid shapes by adding things up, then removing the stuff you don't want.

For example, one could build a "P" by creating, say, a circular cylinder, then putting a hole in it by removing a smaller circular cylinder, then removing some the resulting tours to create an arc, then attaching a rectangular shape to the arc.

In doing things this way, you would have a number of shapes, and the interaction between them defines regions.

The number of approaches are pretty much limitless!


Greetings,
The Google Open Source Programs Team


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