Collision & spatial queries · 10 / 10
Broad Phase / Narrow Phase
候補抽出の後に精密な接触判定を行う。
Compare in motion
Interactive model
多数の接触候補
AReference
すべての組を候補にする
BBroad Phase / Narrow Phase100%
衝突処理を二段で効率化できる
Scrub to pause and inspect. At 0%, B matches A; at 100%, B shows the effect. The scene repeats every 8 seconds.
Look for: 粗い候補の後に精密判定 → 本当の接触が残る。
This model simplifies the technique to show its use case and effect. Operation counts describe the model; they are not performance measurements.
Read the storyboard
例: 多数の接触候補
1. Start
全物体が動く
2. Change
粗い候補の後に精密判定
3. Result
本当の接触が残る
How it works
1. Input
全物体の組
2. Process
粗い候補を先に抽出
3. Result
候補だけ精密判定
Further reading
Box2D Collision ↗A general reference for this subcategory.