Ramp effect
The Ramp effect creates a color gradient. You can create linear or radial ramps, and vary the position and colors of the ramp over time. Use the Start Of Ramp and End Of Ramp properties to specify the start and end positions. Use the Ramp Scatter control to disperse the ramp colors and eliminate banding.
This effect works with 8-bpc, 16-bpc, and 32-bpc color.
Note:
Ramps
often don’t broadcast well; serious banding occurs because the broadcast
chrominance signal doesn’t contain sufficient resolution to reproduce
the ramp smoothly. The Ramp Scatter control dithers the ramp colors,
eliminating the banding apparent to the human eye.
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