Add SSAO pass?

[kfarr]

Why is an SSAO pass helpful?

• Screen Space Ambient Occlusion (SSAO) It is a "cheap" easy way to provide soft lighting to scenes. It is a quick way for basic a-frame scenes to look closer to a ray traced / realistic lighting.

How to add as an effect in this repo?

There are 2 potential post processing screen space ambient occlusion effects

• There is SSAO demo in official threejs post processing examples. It appears to operate very similarly to this repo: https://github.com/mrdoob/three.js/blob/1250397f1867f35f1e4023ac1ed5383d3fb15e50/examples/webgl_postprocessing_ssao.html#L41 and there are corresponding pass and shader js files in that directory.
• Another SSAO library was recently released https://github.com/N8python/n8ao . There also appear to be many similarities with this post processing concept, however it uses a fullscreentriangle instead of a quad for composing its effects.

So it might be best to start with the threejs SSAO example?

[akbartus]

@kfarr thank you for your kind feedback. In my next release will add SSAO pass as well. Stay tuned.