you can fly!?

Blue Screen Compositing
using video of a running man rendered in Poser with blue background,
and combining it with another animated background made in PD Pro

more tutorials:
PD Pro
more PD
PD Particles

   part 1 - part 2 - part 3 - part 4  

Part 2: Computer stuff happening...

(saving and loading image sequences)

Getting Started: Saving your own background animation
If you make your own animation in PD Pro, here's how you can save it to a BMP image sequence. That is the format which we'll need for the bluescreen compositing filter later on.

< click to enlarge
From the Animation menu, select

Animation > Save sequence...

In the save dialog, be sure to select the Bmp (Windows Bitmap) format. The BMP format is needed by the compositing tool we're going to use.

It is recommended that you make a designated folder just for this image sequence. Call it something like bg (background).

As for the filenames, you only need to enter the base name of the file. Project Dogwaffle will append a number sequence to the files.

After you've saved the animation as an image sequence.  For example, if the entered basename was 'frame', then the files will be named like this:

Loading the Blue-screen Clip (Rendered animation or recorded video)
Start by loading the clip which contains the running man and blue background.

In our example it's in the form of an image sequence. But it could also be an AVI file.

Select menu:

Animation > Load sequence...

Select the folder containing the image sequence

Set the 'Pattern' string to *.bmp so that it will be listing the BMP files found in this folder.

Click-and-drag from the first to the last image in the sequence to select (highlight) the files. You can also use Control-click for selecting additions and Shift-click to add a range of files.

Then click 'Load selected'

Note that if you have currently another animation loaded and you didn't save it, you have this last chance to cancel loading the new clip and save the current one.
When you start loading the running man with blue screen animation, you will see the progress bar as each image is loaded.  This can take a few seconds or even minutes if it's a long animation or made of large frames, such as HD.

Computer stuff happening...
Taking a quick look at some of the frames, we notice that there's a bit of motion blur on some of the fast moving parts. This is because when Poser was used to render this clip, the 2D motion blur was enabled intentionally.
You can see that this running man's clip was done in a hurry. The hand and part of the upper arms dip into the chest.

Oh well, it's no biggie, we'll still be able to use this for blue screening, of course.

part 1 - part 2 - part 3 - part 4