Bend image brightness

In this example, output of the MIDI pitch bend values from bendin are sent to the object jit.brcosa to adjust the brightness of the image.

The default pitchbend value of 64, meaning no bend, will yield a brightness value of 1., meaning no change in the video. Maximum downward pitchbend to a value of 0 will reduce all pixel values to 0, and maximum upward pitchbend to 127 will increase all the color values to nearly twice their original value.