Bricks in Motion
We are a friendly filmmaking community devoted to the art of stop-motion animation using LEGO® and similar construction toys. Here, you can share your work, join our community of other brickfilmers, and participate in periodic animation contests!
A place to discuss, share, and create stop motion films.
Ad
You are not logged in. Please login or register.
Hi there.
if you would like to use an blue/greenscreen-software, which options it should have included?
What do you think is usefull, what don´t you like at other freeware like cinegobs, masterkey or wax?
I/we (the coder of GlueFace) will create a freeware greenscreen/bluescreen-software, so we would like to know these things.
Best wishes,
Mario
Last edited by mario72 (August 26, 2009 (03:04pm))
Try Stefan's Blue Screen Of Life if you can find it. I couldn't find it with a quick google search. If you can't find it, I'm sure one of our Brickfilmer Friends does and will be willing to upload it to Mediafire or something.
Oh, you missunderstand me.Or may be it is lost in translations.
I/we will coding a software like that,
But we want to know which options dou you wish, and what you don´t like at some other programms.
Better now?
Oh, sorry.
I kinda like:
- Full RGB Support for Keying
- Regional select: You use a tool like Photoshop's Polygon Lasso tool to select what areas to key. So you can still use Green Bricks
- Masking
I'll think about it more.
Masking will be possivbe - as I know. But only rectange-based, no Polygon.
RGB is cool.
And as I know will be in the first verions only uncompresssed AVI suppirted, later will be ffmpeg included for more video-format
feather, something like keylight (filters the green reflection also, very handy for lego), and thickness.
feather, something like keylight (filters the green reflection also, very handy for lego), and thickness.
I'm the coder on this project. I have the disadvantage of not having used After Effects (or any other tool), so I'm working a bit in the dark.
I'm planning on having a despill option which should remove the fringe color of the blue/green screen. This typically works by clamping the blue/green color if it exceeds the other color components of the pixel.
By feather, I assume you're referring to the creating of a blurred area between the foreground and the background images? That's one of the things I'm looking into. Mind you, I won't guarantee any features, but I'm looking into it. 
Mod edit: dcuny also wrote ...
Full RGB Support for Keying
I've told Mario that while I'm willing to accept suggestions, this is mainly intended to be an "easy to use" program targeting Brick Filmers. So, for example, I don't have to worry about things like hair and such, because everything will have crisp edges.
I'm also requiring the that algorithms for things be well documented. So (for example), I can find algorithms for supporting blue and green screens. As a result, I'm happy to provide that feature. I've only got a limited amount of time to work on this, so I don't want to be spending time trying to invent something.
For example, this looks like it might be what you're referring to.
I'm also limiting the number of features that I'll be adding, so I'm looking for the sort of things that make this the most useful for the most number of people. If you've got a very specialized feature, I won't bother with it. On the other hand, if it's something really useful that make the program much more usable, I'm very interested.
Regional select ... Masking
These go hand in hand, so here's my thoughts (at the moment):
I plan on using rectangular areas to make selections. From a coding point of view, they are a lot easier to work with than arbitrary areas. For example, it's easy to add widgets to a rectangle for resizing and moving, and it's trivial to determine if a pixel is contained in a rectangle.
The areas can be keyframed so they can move an resize. Sorry, no rotations.
I was planning on having inclusive blocks, where areas not in a masked area are transparent.
An alternative would be to have exclusive blocks, where areas in a masked area are transparent.
Finally, there could be "ignore" areas, so things like green blocks wouldn't become transparent
Thoughts? 
Last edited by dcuny (August 27, 2009 (06:41pm))
I really like the idea of regional select
how will we know when its released
Because they have a very cool webiste? (in german, which sucks for me btw)
Its nice to see someone developing some software, but just a few pointers you should consider when selecting you algorithm.
Per Pixel green screening is very processor intensive. What ever method you choose, make sure it is simple otherwise the program will be so slow it will be useless. For example a 1600x1200 image at 15 frames per second is around 28 million individual loops of code per second, which is not a trivial amount even for a modern computer.
If you can you could TRY to make it like keylight in After Effects. If you can.
How about choose which color you want the chroma to be?
not something to simple with no features and not something really complicated
BTW your sig is to big.
BTW your sig is to big.
Its not any more
Posts [ 15 ]
