Google Code-in

Create a 3D model of an hourglass that has sand in it.

• https://www.google.com/search?q=hourglass&tbm=isch

BRL-CAD provides several ways to model 3D geometry including a graphical tool named mged, another named archer, and various ways to create geometry using scripts. Create your model using BRL-CAD, not via import. Create one top-level combination to group everything together. The 'hyp' primitive might be helpful...

Start with some MGED tutorials if you haven't yet, which are a separate task! You can learn the basics of 3D modeling in just an hour or two.

SUBMIT a PNG image, your geometry in BRL-CAD ".g" file format, and a text explaining how&why you made your model the way that you did.