利用者・トーク:Taniwha/FOR-and-parenting
2012年3月15日 (木) 10:45時点におけるwiki>Rkingによる版 (v1)
Questions to Answer
Some of these we already know, others we need to figure out:
- What is an object's Origin?
- Exactly what is Parenting?
- Precisely what is a Frame of Reference?
- What are some examples of when this simplifies things?
- What is this "Inverse" deal?
- How is it useful?
- Do BGE physics take FOR into account for everything?
- What bpy properties can we observe?
- So what bpy calls calculate the true World coordinates?
- What about the BGE calls?
Fragments of Resources
- http://www.euclideanspace.com/physics/kinematics/fofr/index.htm
- Physics-focused
- Mentions Einsteinian relativity to point out Newtonian relativity
- Shows some of the matrix math involved
- http://blenderartists.org/forum/archive/index.php/t-208399.html?s=8ba3a0cd7ee981273de1078cbee99db3
- This thread shows how little real knowledge there is about it. Some people actually get some of it right... I haven't read the whole thing though.
- http://en.wikibooks.org/wiki/Blender_3D:_Noob_to_Pro/Coordinate_Spaces_in_Blender
- Is linked to in the above thread.
- I included it to show how bad the existing docs are.
- They say the space is unique to the Scene -- so we'll have to continue testing for that, but basically the rest of the stuff they say is iffy so I'm not sure.