This creates the illusion that light from the background image is reflected onto the foreground image. Light Wrap reflects a background image around the edges of a foreground image to form a border.Composite offers a variety of options for compositing one layer over another. To use the Light Wrap feature you must apply the filter in Custom Composite Mode.To use the Light Wrap feature in Vegas Pro you must apply the filter as in Custom Composite Mode. It combines screen enhancement, auto-garbage matte and masking, chroma key, matte cleanup, matte choker, foreground color correction and light wrap into a single filter.
In Vegas Pro for an effect to be able to access an alternate video layer (a layer other than the layer the effect is applied to) it needs to be applied on a per track basis as a Custom Composite. Using Continuum filters in Custom Compositing Modes