You may need to decrease the 'specular threshhold' setting. The default
is 0.15, which crudely means that any specular reflection less than 15%
is not accounted for. Depending on how precise you want to go you could
go down to -dt .05 or less, or even to 0, but that may bog down the
calculation.
···
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Sent: Thursday, May 21, 2009 5:01 AM
... I have tried to test my "sample" with a glow sky where I rotate
the sample around the x axis. However when I am above a tilt of 45
degrees I get a reflectance of 0... ( My sample have the dimensions 3.5
x 3.5 in x and y and my rtrace point is placed close to the x axis
(0.2))
...
Anne
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