Apple Final Cut Express HD - Manual (Page 865)

59
865
59
Using RT Extreme
RT Extreme is the real-time effects architecture that allows
you to play back multiple video layers, video and audio filters,
motion, and other effects in real time, without needing to
render them first.
This chapter covers the following:
 Introduction to Real-Time Processing Using RT Extreme (p. 865)
 Using Real-Time Controls in Final Cut Express HD (p. 871)
 Real-Time Audio Mixing in Final Cut Express HD (p. 876)
Introduction to Real-Time Processing Using RT Extreme
Real-time processing refers to your computer’s ability to process and display video and
audio information at the frame rate of your sequence, instead of requiring additional
render time (in which Final Cut Express HD calculates each frame before displaying it).
This is sometimes referred to as native processing, because no additional hardware is
necessary other than a qualified Macintosh computer.
RT Extreme is capable of processing many effects at the same time at full quality. For
example, with a fast enough computer, you can apply color correction filters,
superimpose titles, and add transitions, then play the results in real time. This frees
you from having to render these effects while you edit, and allows you to see
changes that you make to your effects immediately. Most of the effects that come
with Final Cut Express HD are capable of playing back DV footage in real time.
RT Extreme supports dynamic real time. Real-time effects are displayed in the Canvas,
the Viewer, or the Digital Cinema Desktop.