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Directional Lightでキャラだけライトを当てたい

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メモ用

トゥーンマテリアルとかは、Directional Lightしか見なかったり、舞台照明を当てるよりも、別のDirectionalLightで当てた方が綺麗になりがち。

チャンネルで切り分ける。

image.png

Movableにしないと、チャンネルの切り替えは上手くいかないらしい。

その他設定。SkySphereとかVolume系に影響を与えないようにする。

以下チャッピーからコピペ。試した。

  • Lighting Channels → Channel 2だけON
  • Atmosphere Sun Light → OFF
  • Volumetric Scattering Intensity → 0
  • Affect Translucent Lighting → OFF
  • Cast Shadows on Clouds → OFF
  • Cast Shadows on Atmosphere → OFF
  • Cast Cloud Shadows → OFF
  • Light Shaftを使っているならそれもOFF

特に最重要なのが Atmosphere Sun Light = OFF です。この項目がONだと、そのDirectional LightはSky Atmosphere・Cloud・太陽ディスクに直接関与します。これはLighting Channelとは別です。([Epic Games Developers][2])

https://dev.epicgames.com/documentation/unreal-engine/using-lighting-channels-in-unreal-engine?utm_source=chatgpt.com "Using Lighting Channels in Unreal Engine | Unreal Engine 5.8 Documentation | Epic Developer Community"

https://dev.epicgames.com/documentation/unreal-engine/directional-lights-in-unreal-engine?utm_source=chatgpt.com "Directional Lights in Unreal Engine | Unreal Engine 5.8 Documentation | Epic Developer Community"

https://www.ultradynamicsky.com/Documentation/V8/8-0?utm_source=chatgpt.com "Ultra Dynamic Sky 8.0 Documentation"

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