POINTLIGHT command

Places point lights.

Icon:

描述(D)

Places point lights for use with renderings. A point light represents sources that illuminate in all directions, such as a bare lightbulb, and it so has no target.
  1. Glyph for a point light illuminating in all directions.
  2. Sphere illuminated by the point light.
Note: Unlike all other light types, point lights do not have a target or vector associated with them. Drawings can have more than one point light.

Options within the command

名称(N)
Specifies a name for the light so that it can be identified by the LightList command.
强度系数
Specifies the intensity of the light.
状态
Toggles the use of this light.
光度
Specifies the photometric properties of the light.
强度
Sets the intensity expressed in candela.
通量
Sets the luminous flux expressed in lumens.
照度
Sets the illuminance expressed in lux or foot-candles.
距离(D)
Sets a distance expressed in drawing units.
颜色(C)
Sets the color.
?
Lists the names of available colors.
开氏温度
Sets a color temperature expressed in degrees Kelvin.
阴影
Specifies the look of shadows cast by this light.
关闭(O)
Disables the calculation of shadows for the light.
鲜明
Displays shadows with sharp edges. Use this option to increase performance.
柔和贴图
Displays realistic shadows with soft edges.
柔和采样
Displays realistic shadows with softer shadows based on extended light sources.
造型
Sets the shape of the light.
圆盘
Sets the radius of the disk.
矩形
Sets the length and width of the rectangle.
样本
Specifies the sampling size of the shadow.
Note: Larger numbers are more accurate but take longer to render.
可见
Toggles the shape visibility.
衰减
Specifies how the illumination falls off with distance from the light.
衰减类型
Specifies the type of attenuation.
无
No attenuation so that the distance to the light source has no influence.
线性反比
Attenuation is the inverse of the linear distance from the light.
Note: At a distance of 2 units from the light source, light is half as strong. At a distance of 4 units, light is one quarter as strong.
平方反比
Attenuation is the inverse of the square of the distance from the light.
Note: At a distance of 2 units, light is one quarter as strong. At a distance of 4 units, light is one sixteenth as strong.
使用限制
Toggles whether the extent of the illumination is limited.
衰减起始限制
Defines the point where the light starts to shine, measured from the center of the light.
衰减终止限制
Defines the point where the light stops to shine, measured from the center of the light.
筛选颜色
Specifies the color of the light.
索引颜色
Specifies an Index color.
Hsl
Specifies the color using three parameters Hue, Saturation and Lightness.
颜色薄
Specifies a bookcolor name.