|Microsoft DirectX 9.0|
Effects modify a single clip, track, or composition. Transitions create seques from one track or compositionsto another.
DirectShow Editing Services uses DirectX Transform objects for its video transitions and video effects. For video transitions, use any 2-D two-input DirectX Transform object. For video effects, use any 2-D one-input DirectX Transform object. Microsoft no longer supports the development of third-party DirectX Transform objects. However, several are provided with DirectShow and others are provided with Microsoft Internet Explorer. For more information about the transitions provided with Internet Explorerer, see Visual Filters and Transitions Reference.
For audio effects, you can use any DirectShow audio effect filter. DES also provides a Volume Envelope Effect for setting the volume on a track or clip. DES does not support audio transitions.
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