imadr

8 ms·

61.
by imadr 5y ago
Thanks for the heads up, I'm going to rephrase the statement about gimbal lock and link you article. And just to be 100% sure, is the approach I'm using the right one: storing a quaternion instead of 3 angles, multiplying, overwri
62.
by imadr 5y ago
What would be the alternative to slerp that takes the shortest path?
63.
by imadr 5y ago
How far into algebra do you need to get to understand "Rotations of 3-dimensional real space form the topological group SO(3)"? I kinda understand that norm-1 quaternions map to rotations in 3D space somehow but I can't prove
64.
by imadr 5y ago
I made this guide on how to implement quaternions yourself and use them to rotate objects in a 3D engine. The implementation is probably not the most efficient, but I tried to make it simple enough to understand how quaternions work.
65.
Rotations with quaternions(imadr.github.io)
207 points by imadr 5y ago|154 comments
66.
by imadr 5y ago
They use KaTeX which is faster than MathJax
67.
by imadr 6y ago
I would add that using an existing engine rendering pipeline with shaders is way easier that rolling your own. Making a small software renderer from scratch is a very good way to get a good grasp on how game engines work internally.
68.
by imadr 6y ago
I think you can put your project in any directory you want with go modules
69.
by imadr 6y ago
RE2 source code is interesting, it seems to switch between simulating an NFA or a DFA depending on which is faster. However to my understanding, don't you first need to make an NFA and use subset construction to convert it to a DFA?