Depth peeling
# Depth peeling

Depth peeling is a method of order-independent transparency. Depth peeling has the advantage of being able to generate correct results even for complex images containing intersecting transparent objects.

## Method

Depth peeling works by rendering the image multiple times. Depth peeling uses two Z buffers, one that works conventionally, and one that is not modified, and sets the minimum distance at which a fragment can be drawn without being discarded. For each pass, the previous pass' conventional Z-buffer is used as the minimal Z-buffer, so each pass draws what was "behind" the previous pass. The resulting images can be combined to form a single image.

