noun
ambient light source
Technical term in computer graphics and lighting design for a light source that provides overall illumination without a specific direction.
3Dシーンでは、環境光源を設定して全体の明るさを調整します。
In a 3D scene, you set an ambient light source to adjust the overall brightness.
Compound of 環境 (かんきょう, 'environment') and 光源 (こうげん, 'light source').