Posted: Sat, 5th Feb 2011, 10:59pm
Post 1 of 4
In composite lab I'm combining a backround layer with a foreground layer. When rendered and i play it i have some pixelation around the foreground image. The backround continues to zoom out so that more and more of the picture shows, and the foreground image remains static. How do I keep the backround the same size throughout the whole video?
And why is my foreground a little transparent so I can see some of the background through my foreground images
Posted: Sun, 6th Feb 2011, 8:58pm
Post 2 of 4
Without seeing the video in question, its about impossible to diagnose quality issues.
As far as the background changing shape, that's just a matter of having created keyframes in positions that you didn't want them. A better understanding of the keyframing and animation system will make solving this pretty simple. This video tutorial
and this knowledgebase article
will help explain the finer details of the system.
As far as the transparent background, that will depend on the process you are using to combine the two layers, as well as the settings you are using in whatever filters or tools you are using. A bit more information, or seeing the footage, will help us offer specific advice. Can you provide a link to a clip of the footage so we can see it?
Posted: Mon, 7th Feb 2011, 11:17pm
Post 3 of 4
Posted: Mon, 7th Feb 2011, 11:30pm
Post 4 of 4
OK, that's fairly straightforward, as far as the greenscreen issue. Your key settings aren't removing the green, so they need adjusted. More importantly, though, there isn't nearly enough light on the background, and the green is waaaay too dark, which is going to make getting a clean key almost impossible. So, bottom line, you'll probably need to re-shoot this, with a whole lot more light on the greenscreen. More light on the subject wouldn't hurt either, while you are at it. I'm not sure how much you adjusted the settings in your key filter, or even what key filter or filters you were using, but you could definitely get much better results than that by adjusting your key for the footage you have there, but its doubtful that you will ever get really good results from that footage.
There isn't a background layer in that video, so I can't discuss the size issues beyond what I already mentioned in my previous post.