Finding a good way to do this has stumped me for a while now: assume I have a selection box with a set of points in it. By dragging the corners you can scale the (distance between) points in the box. Now for an axis aligned box this is easy. Take a corner as an anchor point (subtract this corner from each point, scale it, then add it to ...
Hi - I'm an artist involved with building various sorts of computer controlled machines. I've started prototyping a gimble-based XY painting machine and have realized that the maths needed are out of my reach. I'm a decent enough programmer but not strong in math- esp. 3D math. To get a sense of what I'm needing to do, it might be help...
I have been trying to find some well presented and explained Vector and Quaternion resources recently to brush up on my 3D skills, and have been having some trouble. Most of the resources I have found tend skip over the high-level reason that performing a particular operation is useful, and dives straight into jargon and proofs that te...
I'm currently writing a very simple game engine for an assignment and to make the code a lot nicer I've decided to use a vector math library. One of my lecturers showed me the Sony Vector Math library which is used in the Bullet Physics engine and it's great as far as I can see. I've got it working on Linux nicely but I'm having problems...