Nút Suy Giảm Dần của Ánh Sáng (Light Falloff Node)#

Duy Cycles (Cycles Only)

The Light Falloff node allows you to manipulate how light intensity decreases over distance. In reality light will always fall off quadratically; however, it can be useful to manipulate as a non-physically-based lighting trick. Note that using Linear or Constant falloff may cause more light to be introduced with every global illumination bounce, making the resulting image extremely bright if many bounces are used.

Đầu Vào (Inputs)#

Độ Đậm/Sức Mạnh/Cường Độ (Strength): Light strength before applying falloff modification.
Làm/Mịn Màng (Smooth): Smooth intensity of light near light sources. This can avoid harsh highlights, and reduce global illumination noise. 0.0 corresponds to no smoothing; higher values smooth more. The maximum light strength will be strength/smooth.

Tính Chất (Properties)#

Nút này không có tính chất nào cả.

Đầu Ra (Outputs)#

Bình Phương (Quadratic): Quadratic light falloff; this will leave strength unmodified if smooth is 0.0 and corresponds to reality.
Tuyến Tính (Linear): Linear light falloff, giving a slower decrease in intensity over distance.
Hằng Số/Đồng Đều/Bất Biến (Constant): Constant light falloff, where the distance to the light has no influence on its intensity.

Một Số Ví Dụ (Examples)#

Cần viết thêm <2.8.