Subject:
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Animation problem
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Newsgroups:
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lugnet.cad
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Date:
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Tue, 22 Aug 2006 22:11:52 GMT
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Viewed:
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1434 times
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Hi,
I've made a simple animation in PovRay. I've edited the file coming out
from L3P with these camera commands:
camera {
location <52+ 550 * sin(2*pi*clock),-140,5+ 550 * cos(2*pi*clock )>
sky -y
right -4/3*x
look_at <52,-60,0>
angle 65
rotate <0,0,0>
}
This is simply camera rotating around the object.
Light is static, one and simple:
light_source { <452,-1320,-763> rgb 0.7 }
I've generated quite a lot of frames, put them together (anyone has some
good cmdline driven tool to do that?) and...
Something is wrong. The shadows are pulsating. It's easy to find two
subsequent frames which have totally different shadows.
I'm using POV 3.5 on Windows, radiosity is turned on:
global_settings {
radiosity {
pretrace_start 0.08
pretrace_end 0.04
count 35
nearest_count 5
error_bound 1.8
recursion_limit 3
low_error_factor .5
gray_threshold 0.0
minimum_reuse 0.015
brightness 1
adc_bailout 0.01/2
}
}
I do admit I'm just a half-ape just cut'n'pasting from various sources :o)
So, anybody knows where is the problem? Why does it look like the
shadows are 'random'?
Regards,
Jindroush
http://www.kostky.org - For Czech LEGO fans.
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Message has 1 Reply:
 | | Re: Animation problem
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| (...) Hi Jindrich, Did I briefly speak to you at 1000steine land about this? Try turning off radiosity and see if the problem goes away. The way that povray approximates radiosity could easily be to blame. Tim (18 years ago, 23-Aug-06, to lugnet.cad)
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