Demonstration of depth peeling in three.js in support for adding re-assignable depth buffers for render targets.

Robot demo here

Drone CAD demo here

Drone model by T Flex CAD on SketchFab. Robot model by artjamayka on SketchFab.

Possible Improvements

• Try stenciling the model area to see if performance improves with lots of layers
• Composite into a common buffer on every layer render
• Perform a depth prepass per layer to avoid discarding expensive fragments
• Limit render viewport to avoid copying and blending of of unused pixels
• Add an epsilon to reduce z fighting on depth comparisons on certain hardware