I would watch the hell out of an anime about the quaternions
December 17, 2025 at 12:00 AM
I would watch the hell out of an anime about the quaternions
I don’t even know why this popped into my head, I was not thinking about either isekai or army of darkness. Before I lost track of my mind I had been thinking about the quaternions
December 16, 2025 at 11:33 PM
I don’t even know why this popped into my head, I was not thinking about either isekai or army of darkness. Before I lost track of my mind I had been thinking about the quaternions
i like the quaternions but that's because i'm a better mathematician than I am a programmer
December 16, 2025 at 9:04 PM
i like the quaternions but that's because i'm a better mathematician than I am a programmer
Trying to wrap my head around quaternions.
December 16, 2025 at 2:43 PM
Trying to wrap my head around quaternions.
Basis/global_basis is your friend. Although ive heard they can be alittle slower (performance wise) then something like Quaternions. So idk if what i built can use quats instead
December 16, 2025 at 2:05 PM
Basis/global_basis is your friend. Although ive heard they can be alittle slower (performance wise) then something like Quaternions. So idk if what i built can use quats instead
I'm not convinced I'll ever understand quaternions.
December 16, 2025 at 7:14 AM
I'm not convinced I'll ever understand quaternions.
Fortunately, you don't need to know if you use quaternions.
But now you need to know quaternions. Ah.
But now you need to know quaternions. Ah.
December 16, 2025 at 2:05 AM
Fortunately, you don't need to know if you use quaternions.
But now you need to know quaternions. Ah.
But now you need to know quaternions. Ah.
Should point out that "physics" in game context is super simple physics. Really just Newton's three laws and the concept of friction and uh... that's it. The rest is Yet More Vector Maths.
Also quaternions. Which in theory are part of vector maths, but they're really their own wacky thing.
Also quaternions. Which in theory are part of vector maths, but they're really their own wacky thing.
December 16, 2025 at 1:32 AM
Should point out that "physics" in game context is super simple physics. Really just Newton's three laws and the concept of friction and uh... that's it. The rest is Yet More Vector Maths.
Also quaternions. Which in theory are part of vector maths, but they're really their own wacky thing.
Also quaternions. Which in theory are part of vector maths, but they're really their own wacky thing.
I learned in my physics class for non majors that Hamilton did great things and then wasted the end of his life on quaternions. I always thought that was terribly unfair. 3d rotations are a pain to deal with. I try to avoid them, but quaterions are clever if you really have to.
December 14, 2025 at 9:43 PM
I learned in my physics class for non majors that Hamilton did great things and then wasted the end of his life on quaternions. I always thought that was terribly unfair. 3d rotations are a pain to deal with. I try to avoid them, but quaterions are clever if you really have to.
the main reason this wouldn't work is that I'm always subtooting what computer shit I'm working on. you'd be able to figure out that I made a specific Theseus game in July 2026 because I was complaining on mastodon about getting quaternions working in Klik'n'Play
December 13, 2025 at 10:12 PM
the main reason this wouldn't work is that I'm always subtooting what computer shit I'm working on. you'd be able to figure out that I made a specific Theseus game in July 2026 because I was complaining on mastodon about getting quaternions working in Klik'n'Play
This explains my difficulty with the quaternions (self esteem issues)
December 13, 2025 at 7:25 PM
This explains my difficulty with the quaternions (self esteem issues)
Wrote a blog post about one of my bugbears: quaternions! wareya.wordpress.com/2025/12/08/s...
Short bit: On Quaternions
It is common for game engines to use quaternions, and it’s important for programmers to understand them, but this should not be taken as confirmation that quaternions are the default or main …
wareya.wordpress.com
December 12, 2025 at 10:36 PM
Wrote a blog post about one of my bugbears: quaternions! wareya.wordpress.com/2025/12/08/s...
if you slice an onion into 4 parts do you end up with quaternions? 🧅
December 12, 2025 at 8:53 PM
if you slice an onion into 4 parts do you end up with quaternions? 🧅
Lol quaternions, spawns from hell
December 12, 2025 at 6:56 PM
Lol quaternions, spawns from hell
i may never in my life understand quaternions but if anyone got me Transform.Rotate() got me.
why spawn things in the correct orientation if you can spawn them wrong and then put them right
why spawn things in the correct orientation if you can spawn them wrong and then put them right
December 12, 2025 at 4:47 PM
i may never in my life understand quaternions but if anyone got me Transform.Rotate() got me.
why spawn things in the correct orientation if you can spawn them wrong and then put them right
why spawn things in the correct orientation if you can spawn them wrong and then put them right
Unearned glory. Nepo-baby numbers. Quaternions know what the real world is like
December 12, 2025 at 1:24 AM
Unearned glory. Nepo-baby numbers. Quaternions know what the real world is like
ez, just model the hook and the shot, rewrite the player movement for the 3rd time, then there's quaternions in there somewhere, calculate unity toolbar height in pixels using code, and bam, done
December 11, 2025 at 10:17 PM
ez, just model the hook and the shot, rewrite the player movement for the 3rd time, then there's quaternions in there somewhere, calculate unity toolbar height in pixels using code, and bam, done
Random thought: you can have matrices with integer coordinates if they are only products of 90 degree rotations, but what about if you want to use rotors (quaternions) instead? Because of the double cover it's not as trivial...
December 11, 2025 at 3:10 AM
Random thought: you can have matrices with integer coordinates if they are only products of 90 degree rotations, but what about if you want to use rotors (quaternions) instead? Because of the double cover it's not as trivial...
💭 ugh if i want to try the rollback net code fps project I'd need to make fixed point quaternions UGH math....
December 10, 2025 at 11:04 PM
💭 ugh if i want to try the rollback net code fps project I'd need to make fixed point quaternions UGH math....
respectfully: it seems you are trying to shift/unify underlying SM symmetries to a "higher" level.. for a better "understanding" of physical "reality".. questions come to mind: at a lower level, what are the implications of non-commutativity of quaternions? & alternate-associativity of octonions?
December 10, 2025 at 12:12 PM
respectfully: it seems you are trying to shift/unify underlying SM symmetries to a "higher" level.. for a better "understanding" of physical "reality".. questions come to mind: at a lower level, what are the implications of non-commutativity of quaternions? & alternate-associativity of octonions?
Not in this spot. Quaternions only for translating from the calculations to Transforms afterwards.
What's happening here specifically is a vector projection of the purple bone onto the red vector, which for certain angles reverses the direction of the projection (as indicated by the cone)
What's happening here specifically is a vector projection of the purple bone onto the red vector, which for certain angles reverses the direction of the projection (as indicated by the cone)
December 9, 2025 at 3:20 PM
Not in this spot. Quaternions only for translating from the calculations to Transforms afterwards.
What's happening here specifically is a vector projection of the purple bone onto the red vector, which for certain angles reverses the direction of the projection (as indicated by the cone)
What's happening here specifically is a vector projection of the purple bone onto the red vector, which for certain angles reverses the direction of the projection (as indicated by the cone)
You’re using quaternions anywhere? That smells like inverted quarternion.
December 9, 2025 at 3:17 PM
You’re using quaternions anywhere? That smells like inverted quarternion.
Hristina Radak, Christian Scheunert, Frank H. P. Fitzek: A Closed-form Solution to the Wahba Problem for Pairwise Similar Quaternions https://arxiv.org/abs/2512.07597 https://arxiv.org/pdf/2512.07597 https://arxiv.org/html/2512.07597
December 9, 2025 at 6:40 AM
Hristina Radak, Christian Scheunert, Frank H. P. Fitzek: A Closed-form Solution to the Wahba Problem for Pairwise Similar Quaternions https://arxiv.org/abs/2512.07597 https://arxiv.org/pdf/2512.07597 https://arxiv.org/html/2512.07597
Hristina Radak, Christian Scheunert, Frank H. P. Fitzek
A Closed-form Solution to the Wahba Problem for Pairwise Similar Quaternions
https://arxiv.org/abs/2512.07597
A Closed-form Solution to the Wahba Problem for Pairwise Similar Quaternions
https://arxiv.org/abs/2512.07597
December 9, 2025 at 5:00 AM
Hristina Radak, Christian Scheunert, Frank H. P. Fitzek
A Closed-form Solution to the Wahba Problem for Pairwise Similar Quaternions
https://arxiv.org/abs/2512.07597
A Closed-form Solution to the Wahba Problem for Pairwise Similar Quaternions
https://arxiv.org/abs/2512.07597
I’m personally a fan of unit quaternions, such as 0.1826 + 0.3651i + 0.5478j + 0.7303k
December 9, 2025 at 12:59 AM
I’m personally a fan of unit quaternions, such as 0.1826 + 0.3651i + 0.5478j + 0.7303k