The wheel transition reveals the new image by rotating four lines around a common pivot point, like the spokes of a wheel.
The following table describes the parameters used by this transition and lists the members of the WMT_VIDEOIMAGE_SAMPLE2 structure to which they are assigned.
|Center X||fEffectPara0||X-coordinate, relative to the video frame, of the center of the wheel effect.|
|Center Y||fEffectPara1||Y-coordinate, relative to the video frame, of the center of the wheel effect.|
|Angle||fEffectPara2||Angle of rotation, in degrees, of the spokes of the wheel effect. A value of 0.0 indicates the old image without any of the new image revealed. A value of 90.0 indicates the new image fully revealed.Movement from 0.0 to 90.0 appears as clockwise rotation of the spokes.
|Composition||fEffectPara3||Set to one of the following values: