dzonatan wrote:
I went out of my way to get myself a green screen in hopes to cover up yellow spots I had in the corners but for whatever reason they are still there:
Seems Im going to have to get a blanket instead.
Hmm...sorry to hear you went through all that trouble. Specifically, a
green screen will do nothing for iPi Motion capture. A green screen is used for chromakey shooting for visual fx and it isn't particularly useful for iPi Motion Capture. (See note at the end for why I used to have a green screen in our garage.)
If you're trying go block light, you need black-out material, which you can purchase in fabric stores like Jo Ann. It's pretty cheap and it's designed to do exactly what you're describing. Here's an example:
Blackout FabricBlack-out fabric can specifically help Kinect capture because UV pollution from outdoor lighting can affect the quality of capture data. I used this fabric to make a cover for an SLA printer to help block-out UV light, as well as dust, from entering the housing and it's been very effective. But for Kinect motion capture, I normally avoid shooting in the daytime altogether because our living room has many windows and I can't block all of them.
Roclon and Duvateen are some common brands for light blocking material. I think Roclon works fine and it's a whole lot cheaper.
Alternatively, you can get roll-up shades made of black-out material at hardware stores like Lowe's or Home Depot. We got a pair for my daughter's bed room years ago when she was a toddler so she wouldn't wake up so darn early in the morning, and they really worked well for that! Nowadays, I use black-out shades in our computer room to eliminate outdoor light when working on color sensitive projects. The kind I got was designed so you can easily cut the roller down to fit your window. I don't recall what they cost but I know they're a whole lot cheaper than black-out curtains. Here's an example of one kind from Home Depot:
Bali Cut-to-Size White Cordless 12mm Blackout Vinyl Roller ShadeSeeing the pics of your room, the shades might be more convenient for you?
In some of my early iPi videos (like from five years ago,) you might have noticed I have a green screen environment but this is because I occasionally needed to shoot chromakey footage for my work. The fact that I had a green screen in the room is mostly incidental but it did hide a lot of the clutter stored along the wall, which could affect PS3 recording at the time. Plus, it kinda looked cool. :)
The green screen there would have made no difference for improving Kinect based capture though. And light blocking fabric wouldn't have mattered either because the garage doesn't even have windows.
Hopefully, your green screen won't go to waste--they're actually very useful in vfx production. Coincidentally, I am restoring our green screen later this month to use for our 'motion capture short film' but this is for compositing live action footage and has nothing to do with the motion capture process itself.