Curves & interpolation · 5 / 10
Non-Uniform Rational B-Spline
重みとノットを使って円弧などを精密に表す。
Compare in motion
Interactive demo
円弧状の軌道
AReference
円弧の弦を進む
BNon-Uniform Rational B-Spline100%
円弧などの正確な軌道を作れる
Scrub to pause and inspect. At 0%, B matches A; at 100%, B shows the effect. The scene repeats every 8 seconds.
Look for: 重みとノットで形を保つ → 精密な円弧を通る。
A small visual example of a game use case. Games combine these techniques with assets and other effects.
Read the storyboard
例: 円弧状の軌道
1. Start
曲線の始点
2. Change
重みとノットで形を保つ
3. Result
精密な円弧を通る
How it works
1. Input
制御点・ノット・重み
2. Process
有理式で合成
3. Result
円弧も表せる曲線
Further reading
The Book of Shaders — Shaping Functions ↗A general reference for this subcategory.