I’m getting a bit bored and my wrist is starting to hurt a little from operating the mouse so much. I’m not done recategorizing my blog posts, but I only have one year’s range left - March 2006 - March 2007. Hopefully that was a twelve month period in which I didn’t write too much. Boy-oh-boy did I learn my lesson about not backing up. Also, I was jumping from 2.1 to 2.3 so perhaps I was bound to run into those problems. Once I’m done with that, there are some pretty neat developments which have recently happened on vimeo as well as some exciting news on “Sugar” and “Trick or Treat”.

  

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Broke categories….now all of my posts are uncategorized….

everything else appears to be working well….

now to fix the categories again….

  

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I was reading 3D World Issue #95 and they had a tutorial for Blender in the Questions section. It involved having a ball hit a wall of bricks and knocking them down. This is tedious to animate brick by brick, but relatively simple with the Blender physics engine. The following animation only took me about 15-20 minutes to get set up.


Collisions from djotaku on Vimeo.


But you may notice a problem here. The ball appears to accelerate as it leaves the bricks. That’s because the tutorial was just a quick example of how to do the task at hand. So I set about to find out what was going on and why my ball was not obeying the conservation of energy. It turns out that the settings as described in the magazine kept continuously giving the ball energy. So I had to adjust it so that it would only get energy at the beginning. After that, I got something much more realistic.

Collisions (Newton’s Laws) from djotaku on Vimeo.

  

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