More information in tutorial

[Lurler]

It would be nice if you could consider updating the tutorial to include additional information.

Unfortunately a lot of the concepts are unclear from the very brief tutorial that exists currently. Rather than a demo maybe you can just go over various concepts in the library and explain them? This would certainly help people trying to understand how to use it.

Also, in my particular case I'm finding it difficult to understand how to address the fact that I'm using Z-up and all of the game is build around it, but the Jitter uses Y-up it seems. So, I'm not sure how I can combine this together other than changing all of my code to also be Y-Up.

Also, when creating various shapes and adding them to a certain position it is unclear what is used as an origin. For example what part of the cube is positioned at the position point? Is it one of the sides or center? If it's a side then which one? How do world orientation affects which side of the cube is the origin? Etc. There are a lot of such nuances that are not explained anywhere that would be nice to know.

Sorry if my questions seem silly, but I've never used a 3D physics engine before and only have experience with 2D physics engine where everything is much simpler.