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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | #!F-adobe-helvetica-medium-r-normal--18*
#!N
#!N #!Rlight Light #!N #!N Category
#!N #!N #!Lcatren,dxall760 h Rendering #!EL #!N #!N Function #!N #!N Creates a distant
light source. #!N #!N Syntax #!CForestGreen #!N #!N #!F-adobe-courier-bold-r-normal--18* #!N #!F-adobe-times-bold-r-normal--18*
light #!EF = Light( #!F-adobe-times-bold-r-normal--18* where, color, camera #!EF ); #!EF
#!N #!N #!EC #!N #!N Inputs #!T,1,91,276,461,646 #!F-adobe-times-medium-r-normal--14* #!F-adobe-times-bold-r-normal--18* #!N TAB
Name TAB Type TAB Default TAB Description #!EF #!N TAB where
TAB vector or camera TAB [0 0 1] TAB position or
direction of light #!N TAB color TAB vector or string TAB
[1 1 1] TAB color and intensity of light #!N TAB
camera TAB flag TAB 0 TAB 0: fixed direction #!N TAB
- TAB - TAB - TAB 1: direction relative to camera
#!N TAB - TAB - TAB - TAB #!EF #!N #!N
Outputs #!T,1,161,321,646 #!F-adobe-times-medium-r-normal--14* #!F-adobe-times-bold-r-normal--18* #!N TAB Name TAB Type TAB Description
#!EF #!N TAB light TAB light TAB a distant light #!N
TAB - TAB - TAB #!EF #!N #!N Functional Details #!N
#!N #!I0 #!N #!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* #!F-adobe-times-bold-r-normal--18* where #!EF #!EF
#!I50 #!N specifies the direction to the light source. If this
parameter is specified as a camera rather than as a vector,
the module positions the light source behind the camera and to
its left (this is also the default light supplied by Data
Explorer). #!N #!I0 #!N #!F-adobe-times-bold-r-normal--18* #!F-adobe-times-bold-r-normal--18* color #!EF #!EF #!I50 #!N
specifies the color and intensity of the light either as an
RGB vector or as a color-name string. The color name must
be one of the defined color-name strings (see #!Lcolor,dxall792 h Color #!EL ). #!N
#!I0 #!N #!F-adobe-times-bold-r-normal--18* #!F-adobe-times-bold-r-normal--18* camera #!EF #!EF #!I50 #!N specifies that
#!F-adobe-times-bold-r-normal--18* where #!EF is to be interpreted relative to the camera
coordinate system rather than the world coordinate system. #!N #!N If
#!F-adobe-times-bold-r-normal--18* where #!EF is a camera, then the specification #!F-adobe-times-bold-r-normal--18* camera
#!EF = 0 is an error. #!I0 #!N #!N #!N #!N
Use the Collect module to incorporate the output light in the
scene given to the Render, Display, or Image. #!N #!N If
no light is present in the object passed to the Render,
Display, or Image tool, a distant light of color [1 1
1] (behind and 45 degrees to the left of the viewer)
is automatically incorporated in the scene. A small amount of ambient
light is also used. Data Explorer removes these default lights if
any light has been specified. The effect of the system's default
lights by combining an ambient light (generated by using the default
settings of AmbientLight) with the distant light generated by the Light
module when a camera is specified for the #!F-adobe-times-bold-r-normal--18* where #!EF
parameter. #!N #!N Lights have no effect on volume-rendered objects. #!N
#!N Example Visual Programs #!CForestGreen #!N #!N #!F-adobe-courier-bold-r-normal--18* #!N ThunderGlyphSheet.net #!N
UsingLight.net #!EF #!N #!N #!EC #!N #!N See Also #!N #!N
#!Lambligh,dxall766 h AmbientLight #!EL , #!Lcollect,dxall788 h Collect #!EL , #!Lcolor,dxall792 h Color #!EL , #!Lconvert,dxall799 h Convert #!EL #!N #!N #!N #!F-adobe-times-medium-i-normal--18*
Next Topic #!EF #!N #!N #!Llist,dxall885 h List #!EL #!N #!F-adobe-times-medium-i-normal--18* #!N
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