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#11
24th November 2009, 04:35 PM
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Not much help when projecting on something "weird" like you said, but for real projection screen materials some manufacturers do include a color spectrum reproduction chart in the specifications. I know it's the case for Gerriets projection material for example (their documentation material should be used as a reference for all other projection material manufacturers imho).
one example on the third page of that pdf: http://www.gerriets.com/_download/pr...ter/201302.pdf 
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#12
24th November 2009, 05:20 PM
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Calibrating your monitor and the projector screen is a good start: http://vjforums.com/showthread.php?t=30830 Color management is the technical term for which there is a lot of information available.
Last edited by visualove; 24th November 2009 at 05:27 PM.
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#13
24th November 2009, 07:56 PM
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Quote:
Quote:
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#14
26th November 2009, 07:42 AM
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Brightness perception isn't linear, so 50% red + 50% green isn't going to appear as bright as 100% red or 100% green, and 100% red probably doesn't appear twice as bright as 50% red...
You say you're projecting onto something weird. Do you have a choice of projector, though? Maybe using a much higher powered projector will give you scope to balance your colours more, or, if nothing else, allow you to have most of your content at reduced brightness, and only use full power for special parts that you want to pop (eg a bright white glint on the edge of a logo). -spxl
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#15
26th November 2009, 09:59 AM
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yeah calibrating a projector often reduces the brightness of the image quite considerably, for most VJ applications a calibrated projector is not required and it could be argued that you'd be better off adjusting the image for maximum impact (high contrast bright output) rather than accurate colour reproduction.
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