Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download SSAO Pro Free.
SSAO Pro v2.1.1
SSAO Pro v1.6
SSAO Pro offers a high-quality, stable and fast version of SSAO for Unity with added features like lighting contribution, distance cutoff with smooth falloff and occlusion color.
Documentation | Video
Website | Support Forum
The SSAO effect (short for Screen-space ambient occlusion) approximates ambient occlusion in realtime. It relies on the depth and normals buffers to darkens creases, holes and surfaces that are close to each other. In real life, such areas tend to block out or occlude ambient light, hence they appear darker.
Adds a whole new visual dimension to your scenes using a stable and powerful algorithm.
Multiple quality settings, downsampling levels, variable blur quality… Fine-tune the effect to your needs !
Wide or sharp radius, intensity, occlusion distance and color, distance falloff… Plenty of settings to tweak !
Full source code included.Models & textures in screenshots and video by Manufactura K4 and Unity Technologies (not included in the package).
Mobile isn’t officially supported, use at your own risk!