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Invisible Heads...

Posted: Sat, 14th May 2005, 3:49pm

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TimmyD

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Hi, guys,

My friend Byron had a few troubles with chromanator, sos i decided to help out, and i couldnt, so im gonna pass the torch on to you all...

The problem is, that when he tries to key out the green of a clip the following happened:


I told him to fiddle around with the white balance, and that didnt work, so i was done with my ideas, so, help, please.

Thanks,
Tim
Posted: Sat, 14th May 2005, 3:55pm

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Rawree

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You got a pic of the non keyed shot?
Posted: Sat, 14th May 2005, 4:57pm

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TimmyD

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Alright, here it is:

Posted: Sat, 14th May 2005, 5:03pm

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Serpent

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I think I am seeing the problem. Is that a grey screen perhaps? wink You need a better cam, uncompressed, vibrant green, good lighting, etc. The camera either sucks or that is the worst compression I have seen.
Posted: Sun, 15th May 2005, 1:39am

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TimmyD

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Its a webcam unsure
Posted: Sun, 15th May 2005, 4:33am

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Serpent

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Well buddy, I THINK I have definately found the problem.... You need a better screen, better lighting, better camera with all settings correct.
Posted: Sun, 15th May 2005, 6:54am

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Aculag

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Serpent, I love how the only help you can give is saying "you NEED such and such". A better screen would definitely help out, but it IS possible to get rid of the background smoothly without buying all sorts of unnecessary stuff.

For example:



I did that in about a minute in After Effects. Now, I was using the Keylight plugin, which gives excellent results with some tweaking, but I'm sure you can get similar results in Chromanator.

When selecting which color to key in Chromy, make sure you select it from the left side of the image, as that's where it's brightest. And you'll probably have to mask some stuff to get the effect you desire.

It can be done with the current equipment you have, though. Don't listen to Serpent.
Posted: Sun, 15th May 2005, 3:40pm

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TimmyD

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Alrighty, thanks guys, ill show this to Byron and have him see whats wrong.

Thanks again,
TimmyD
Posted: Mon, 16th May 2005, 4:36pm

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Simon K Jones

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Your main problem is that your greenscreen isn't green. At all. The camera itself doesn't seem to be the problem (although it isn't going to help), but you can't expect to get a good key off a pale wall easily.

Here's my attempt:



Here's a preset to set up the shot to achieve the same results:

http://tarn.fxhome.com/byronhelp.tool_preset
Posted: Mon, 16th May 2005, 9:29pm

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TimmyD

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Oh boy Tarn, now i'l have to guide him through loading it razz


Thanks, all, you're a wonderful help,
TimmyD