SPOTLIGHT command
Creates a spotlight.
Icon:
描述(D)
Creates a spotlight, which casts a narrow beam towards a target point.
Note: The options of this command are influenced by the value of LIGHTUNITS system variable.
Options within the command
- 指定来源位置
- Specifies the location of the light in 3D space.
- 指定目标位置
- Specifies the location of the target.
- 名称(N)
- Specifies the name for the spotlight.
- 强度系数
- Specifies the intensity of the light.
- 状态
- Toggles the use of this light.
- ON
- Light is included when calculating rendering.
- 关闭
- Light is excluded.
- 光度
- Specifies the photometric properties of the light.
- 强度
- Enter the intensity expressed in candela (Cd).
- 通量
- Enter the luminous flux in lumens (Lm).
- 照度
- Enter the illuminance expressed in lux (Lx) or foot-candles (Fc).
- 距离(D)
- Enter a distance expressed in drawing units.
- 颜色(C)
- Enter a color name.
- ?
- Lists the names of available colors.
- 开氏温度
- Enter Kelvin temperature expressed in degrees Kelvin.
- 聚光
- Specifies the angle of the hotspot, the area of light concentration.
- 衰减
- Specifies the angle of weaker illuminations surrounding the hotspot.
- 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.
- 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.
- Shadow sample
- Specify the sampling size of the shadow.
- 可见
- Casts a shadow that represents shapes (more accurate) or is rectangular (faster to render).
- 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.
- 平方反比
- Attenuation is the inverse of the square of the distance from the light.
- 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.
- Enter true color
- The RGB color model is an additive color model in which red, green, and blue light are added together in various ways to reproduce a broad array of colors. The component values are stored as integer numbers in the range 0 to 255, the range that a single 8-bit byte can offer (by encoding 256 distinct values).
- 索引颜色
- Specifies an AutoCAD Color Index color.
- Hsl
- Specifies the color using three parameters Hue, Saturation and Lightness.
- 颜色薄
- Enter a name from a colorbook.
- 退出
- Concludes the command and creates the light.