Graphics Programs Reference
In-Depth Information
means that if the quality of the track falls below 95% accurate (or 5% wrong) a
new pattern is grabbed anyway.
NowthatIexplainedthedifferentoptionsyouhavefortrackingwiththeTrackernodeand
gave you some tips, I will leave it up to you to get a good track for each of the points. The
most important thing, in this case, is to track each tracking point individually. By the way,
I'lltellyouasecret:IgotagoodtrackwithoutchanginganythingintheSettingstab—just
getting a good pattern is enough. Try one pattern, and if it doesn't work, clear the track
and try something else. In this exercise a good pattern means, for example, not to include
the white part of the wall for the top-right point, because that will change and move in a
different way to the picture frame you are tracking.
1. Use the preceding tips to track the image precisely on all four tracks. Keep the
four trackers on the four corners of the frame, though.
2. When you're finished, make sure all the tracker check boxes are on ( FIGURE
5.20 ) .
Figure 5.20. After you turn on all the tracker check boxes, your frame
should look like this.
 
Search WWH ::




Custom Search