View Full Version : New Guerrilla CG Video : The Rotation Problem

12 December 2008, 06:01 AM
Hi guys we've got a new video up at The Guerrilla CG Project ( This one is an overview of 3d rotations, called The Rotation Problem ( It's the first video that goes into that age old problemcalled gimbal lock. We'll have a follow up video that covers Euler and Gimbal in more detail.

We've also opened up the contributor forum to the public and have a new menu section WIP (work in progress) so everyone can see what we're up to. (
Rotations in 3d are not easy to understand. This video examines some of the problems surrounding 3d rotations and briefly explains the two rotation types, Euler and Quaternion. Rotations are only a problem for animators. Euler rotations experience gimbal problems while quaternion rotations lack animation curves.

Coming Soon Videos
Euler Rotations Explained (and Gimbal Lock)
Sub Division Surfaces
Bump and Displacement Mapping Overview

Andrew Silke (

12 December 2008, 06:07 AM
I just want to tell you that I love your site. Great information! I had to clean out my bookmarks so it wouldn't get lost like all the other links I bookmark.

12 December 2008, 08:23 AM
Another triumphant video that I'll move along to my students.

12 December 2008, 09:03 AM
Nicely done, mate! :)

12 December 2008, 11:12 AM
fantastic site!
Thanks for putting so much effort into making such a great resource for the community :)

12 December 2008, 12:21 PM
That was brilliant. Simple, clear and wonderfully presented.

12 December 2008, 12:39 PM
That was brilliant. Simple, clear and wonderfully presented.

i second that, love the sound effects:)

thx for sharing

12 December 2008, 01:25 PM
That was great. I never realized the rotation problem existed. I'm not really an animator, but it's good to know.

12 December 2008, 07:23 PM
great videos and music too :)

12 December 2008, 07:47 PM

was checking the other videos out on that site, thought the biped one looked intresting... clicked on it ... it plays .... and its spoken in russian or something :(

12 December 2008, 02:15 AM
These are really great, so perfectly explained. I feel like I've heard lectures hours longer on the same topic and never learned as much.

12 December 2008, 02:45 PM
thank you, clear and to the point.

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