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Light Modification
1/n
From Blender
At present, only
a few parameters of Blender lights are usable to modify aspect under
Povray. This restriction is not only due to the python interface (like
in the material panel), there only isn't any equivalent. In the weeks
to come, the control options should increase and refine, perhaps in a
particular panel dedicated to these operations in the graphic interface.
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Old version to 2.3
New interface
Lamp :
standard light_source, it is a point light in space that illuminate in
all directions.
Spot : like light_source
but with spotlight option.
SpotSi : define the
radius of the spot, radius
SpotBl : define the
size of shadowy light,
tightness et falloff
Sun :
light_source whose rays are cast in the same way thanks to the parallel
option.
Hemi:
not used.
quad: Activate the the
fade attenuation Shadow or Buf.Shadow: activate or deactivate the
shadows casting . If the button is not depressed the option
shadowless is added to the ligh source.
Halo: Activate the
reaction to media.
Square: Activate the use
of area_light with the values
:<8, 0, 0> <0, 0, 8> 4, 4, plus adaptative 0, jitter,
orient,circular onlyShadow: Active la projection de photons
R: gives the Red value of
color rgb
G: gives the Green value
of color rgb
B: gives the blue value
of color rgb
Energy: multiply color
rgb<R,G,B>*Energy
Negative: reverse the
sign of Energy
Dist: gives the value for
Fade_Distance. Exactly as the Fade_Power the exportation of this value
is selected in the graphic interface of Povanim.
Layer : activate the
light_group option for all the layers in wich the lamp is used. Not
very efficient under megapov wich can manage only one light-group per
object, this option is totaly
handled by povray3.5. |
Global
light control
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It is
sometimes necessary to modify all the light sources at the same
time. To do so you have to use the button Set Global ight.
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This button
activates a cursor that you slide to the left or to the right to set
the value that will multiply the intensity of lights
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