SpeedSix.CrashZoom   (Discreet Lenz Raptor)


PURPOSE

Simulates the effect of holding the shutter open in a camera with a zoom lens while swiftly changing the focal length of the lens. Similar effects would happen if a camera were dollied very quickly towards a target. Might also be called convergence blur.

crashzooma.jpg crashzoomb.jpg


INPUT CLIPS

 1: Clip to Zoom


CrashZoom   CONTROL PAGE

Centre  (Position  Default: 0.5,0.5)
     The convergence position on the image. The co-ordinates need not lie within the image.

Clear Radius  (Number  Min: 0.0, Max: 10.0, Default: 0.4)
     The radius of a circular region centred on the 'Centre' position within which the image is unaffected.

Speed  (Number  Min: -200.0, Max: 200.0, Default: 10.0)
     Moving out radially from the centre, every pixel outside the clear centre region moves over a distance that is proportional to its distance from the edge of the clear region during the 'exposure time' of the 'film'. 0.0 - no movement; > 0.0 - zoom towards; <0.0 - zoom away.

Sample  (List Box  Options: 1 Sample | 4 Samples | 16 Samples | 64 Samples, Default: 1 Sample)
With high contrast images you may see unwanted stepping. Increase the Sample rate to smooth the image. However the higher the rate, the slower the rendering.

Index