View Full Version : Green Psyche wall
January 17th, 2008, 12:00 PM
So my boss built a nice(well sorta nice) psyche wall over the weekend in our green room. The problem is it has this horrible hotspot right in the middle of the curve running the whole length no matter how you light it. It's all painted with some HomeDepot matte paint. Any good ideas on a solution? Is the $100/gallon chroma paint really worth it?
I've looked all over the net and found didley squat on building a psyche wall so any help would be great.
January 17th, 2008, 12:10 PM
what exactly is a psyche wall? i really have no idea.. sorry for my lack of knowledge..
January 17th, 2008, 02:21 PM
I believe it is spelled "Syc" - Psyche might be a type of person you find in a mental institution :-) A syc wall is a wall with a curve where the wall meets the floor, so it creates a seamless transition. It is commonly used in greenscreen studios to promote even lighting across the entire background. If there was a corner instead of a curve, the lighting would not work.
Shrunkenhead - sorry I don't have any suggestions for the lighting.
January 17th, 2008, 02:31 PM
oh ok thanks for the lesson ;) :thumbsup: always good to learn new stuff. I knew about this type of greenscreen i just didnt know the proper name for it.
January 17th, 2008, 02:43 PM
To be fully enlightned check this out:
January 17th, 2008, 02:48 PM
guess I was wrong, it is "Cyc", not "Syc" :)
January 17th, 2008, 04:44 PM
well you were a lot closer than "psyche"
I knew there had to be another spelling when google came up with ziltch.
I was in the mindset of "psychology" and how you trick the camera into thinking the wall isn't there.(if that makes any sense)
But any Ideas on how to get rid of the hotspot?
I was also thinking a larger radius might help. But the room is kinda small that's why we made is small. It's about 2 ft radius.
January 17th, 2008, 06:06 PM
It should still work, you'll have a little more touching up to do in post.
January 17th, 2008, 06:27 PM
you could always roto around that area, i know its no ideal but it shouldnt be too bad, definitely usable.
January 17th, 2008, 08:39 PM
I've done some tests and yeah it works fine for me. I just worry about some of our clients. We do enough shooting and sending footage elsewhere for keying that it worries me. Maybe we'll just wait and see if there are any complaints before doing anything about it.
February 13th, 2008, 07:52 PM
when shooting a green syke wall its all about lighting. Using Chroma Green Kino Flo lights helps a LOT. If you dont have this, you can use 1k lamps, but you NEED Chimeras prefereably with blue/green gels. Lighting green or blue with yellow tungsten light is NEVER fun.