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Table Of Contents
Linear Timewarp
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Linear Timewarp: Realtime Capabilities
Linear Timewarp can also be played in realtime (no render). Please note:
To activate realtime mode, un-check the Motion detection checkbox (no checkmark visible; see
also Control Panel > Site > TARGA Performance Settings > Realtime Timewarp;). Please note:
Computation: only Mix Fields or Cut Fields guarantee realtime. Other selections switch back to
render mode.
There is no reverse realtime playback, at no speed.
Avid Liquid Chrome HD
can play two realtime Linear Timewarps with speeds slower than
100 %, but only one with a speed faster than 100 %.
We do not recommend mixing realtime and software Timewarps since this may cause render
problems.
Please do not combine RT Timewarps together with other RT effects in a Track Matte effect. This
may cause render problems. To avoid such problems, use software Timewarps in Track Matte
effects.
In the case of overlapping clips that use realtime Timewarp it is recommended to turn off the Use
Image Alpha option in the clip on the upper
Tra c k . This option is On by default, but in most cases
it is preferable to disable it in order to optimize the performance of a realtime Timewarp. Note:
On a RGBA clip the option should be left enabled.
From a technical point of view, speeds faster than 100 % mean playing more than one video stream. For
example: If you play a YUV stream at speed = 200 % it takes just as many resources as when two YUV
streams are being played. The faster the speed the more bandwidth is needed. And this is where at some
point the bottleneck comes. To avoid dropped frames, you would have to move the System Bandwidth
Slider (TARGA Performance Settings) to the left, in the Render range.
Avid Liquid
Chrome HD