Luma Based Ambient Occlusion is a full-screen image effect that simulates occlusion based solely on color information.

It's aimed at 2D scenes, where no depth information is available, providing some sort of depth shading or relief feeling to flat 2D images.

It can also be used in 3D scenes although, in this case, a depth-based AO solution like HBAO is recommended (you can combine both and experiment with results).

LBAO works great with Beautify as well.

To use this effect, just add LBAO script to your main camera and customize its parameters.

** Features **

- Works with orthographic and perspective cameras.

- Depth independent effect, compatible with 2D, transparent objects and particles.

- Color bleeding.

- Directional occlusion control.

- Demo scene included.

- Built-in pipeline supported (no SRP support).

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Luma Based Ambient Occlusion (SSAO 2D)