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Beer–Lambert Law / Transmittance

通過距離と密度で光を減衰させる。

Compare in motion

Interactive model

濃くなる霧

Synchronized comparison

AReference

霧の吸収なし

BBeer–Lambert Law / Transmittance100%

霧の厚さに応じて透過光が減る

Loading demo…

Speed

Time1.20 / 8.00 sB · effect amount100%

Scrub to pause and inspect. At 0%, B matches A; at 100%, B shows the effect. The scene repeats every 8 seconds.

Look for: 距離と密度で透過率が減る → 遠方が暗く薄れる。

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: 濃くなる霧

1. Start
短い距離を光が通る
2. Change
距離と密度で透過率が減る
3. Result
遠方が暗く薄れる

霧の厚さに応じて透過光が減る。時間変化を示す模式図です。実際の描画結果や処理速度を再現したものではありません。

How it works

1. Input
密度と通過距離
2. Process
指数関数で透過率を減らす
3. Result
奥ほど暗い光

A schematic of Beer–Lambert Law / Transmittance. It shows the relationship between input, process, and result; exact values and rendering depend on the implementation.

Compare in motion

濃くなる霧

How it works

Further reading