setAmbientLight 设置场景环境光

setAmbientLight

类型: MethodDeclaration

所属类: SceneContext

定义位置: scene.ts

描述

设置场景环境光

参数 red: 红[0-255]

参数 green: 绿[0-255]

参数 blue: 蓝[0-255]

参数 easingId: 过渡曲线ID

参数 duration: 持续时间(毫秒)

参数

参数名	类型	描述	默认值
red	number	-	-
green	number	-	-
blue	number	-	-
easingId	string	-	''
duration	number	-	n0

返回值

类型: void

源代码

位置: 第 994 行

public setAmbientLight(red: number, green: number, blue: number, easingId: string = '', duration: number = 0): void {
    const updaters = this.updaters
    const ambient = this.ambient
    if (duration > 0) {
      let elapsed = 0
      const sRed = ambient.red
      const sGreen = ambient.green
      const sBlue = ambient.blue
      const easing = Easing.get(easingId)
      // 创建ambient更新器
      updaters.set('ambient', {
        update: deltaTime => {
          elapsed += deltaTime
          const time = easing.get(elapsed / duration)
          ambient.red = Math.clamp(sRed * (1 - time) + red * time, 0, 255)
          ambient.green = Math.clamp(sGreen * (1 - time) + green * time, 0, 255)
          ambient.blue = Math.clamp(sBlue * (1 - time) + blue * time, 0, 255)
          GL.setAmbientLight(ambient)
          // 过渡结束，延迟删除更新器
          if (elapsed >= duration) {
            updaters.deleteDelay('ambient')
          }
        }
      })
    } else {
      updaters.deleteDelay('ambient')
      ambient.red = red
      ambient.green = green
      ambient.blue = blue
      GL.setAmbientLight(ambient)
    }
  }

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文档生成时间：2025/7/21 20:53:39