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Old June 24 2013, 08:14 PM   #1282
Lee Enfield
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Location: Germany
Re: USS Grandeur - One... More... Time!

sojourner wrote: View Post
ETA: the fifth image down. It looks like there is a smoke smudge on the underside of the right nacelle. Like someone has physically handled the model. Very strange?
That's called a "light leak". Indirect light has to be calculated in samples. And they get blurred together in the calculation. Sometimes the settings (which get defined by the artist or rendering tehnician/artist, if you have a team) don't meet the requirements of the geometry/light/material setup. But since one frame with proper settings can take up to hours, people tend to ignore little light leaks, beause its more economical for showcasing work in progress.
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