Physics & constraints · 4 / 10
Fixed Timestep / Substepping
決まった刻みで物理更新を進める。
Compare in motion
Interactive model
不規則な描画間隔
AReference
描画ごとに同じ距離だけ進む
BFixed Timestep / Substepping100%
描画の揺れに物理の刻みを左右されにくくできる
Scrub to pause and inspect. At 0%, B matches A; at 100%, B shows the effect. The scene repeats every 8 seconds.
Look for: 物理を一定刻みで進める → 更新間隔は揃う。
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: 不規則な描画間隔
1. Start
描画フレームが揺れる
2. Change
物理を一定刻みで進める
3. Result
更新間隔は揃う
How it works
1. Input
描画フレームの時間差
2. Process
一定幅の小刻みに分割
3. Result
安定した更新間隔
Further reading
Gaffer On Games — Integration Basics ↗A general reference for this subcategory.