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Amplify Occlusion was the first industry-grade, full-featured screen-space ambient occlusion solution to be released on the Asset Store in 2016, at a time when Unity itself lacked a decent SSAO implementation. It managed to remain the fastest SSAO solution for Unity released a built-in implementation of "Multi-scale Volumetric Occlusion" as part of their Post-processing Stack.
The first version of this plugin was using a technique known as HBAO, or "Horizon-Based Ambient Occlusion", based on a 2008 paper titled "Image-Space Horizon-Based Ambient Occlusion" by Louis Bavoil, Miguel Sainz and Rouslan Dimitrov.
The second version, which improved upon the first iteration on both quality and performance was using a technique known as GTAO, or "Ground-Truth Ambient Occlusion", based on a 2016 paper titled "Practical Realtime Strategies for Accurate Indirect Occlusion" by Jorge Jimenez, Xian-Chun Wu, Angelo Pesce and Adrian Jarabo.
This package was for sale on the Unity Asset Store between 2016 and 2019 with an average rating of 5 stars. It is now deprecated and we no longer support it, so we are releasing it to open-source world under the MIT License.
Amplify Occlusion sets out to deliver a new industry standard for fast, high-quality Screen-Space Ambient Occlusion in Unity; delivering state of the art Ground Truth Ambient Occlusion (GTAO) and bringing quality and accuracy closer to traditional raytracing. A true all-in-one package, providing a highly-robust and efficient way to simulate ambient occlusion and contact shadowing. Now you can attenuate reflections in occluded areas, make objects actually connect to the world and add real depth to your scenes with minimal effort.
- Ground Truth Ambient Occlusion
- PS4, Xbox One and Switch compatible
- Single and Multi-pass VR support
- Up to 2X faster than Amplify Occlusion 1.0
- Revamped Spatial and Temporal Filters
- Dramatically Higher-Quality
- Higher Flexibility
- Under 1 ms on a mid-range GPU at Full HD
- Accurate and fast-performing
- Deferred and Forward Rendering
- PBR compatible injection mode
- Superior occlusion approximation
- Extensive blur and intensity controls
All platforms
Unity 2021.3 LTS, or higher
Amplify Occlusion can be easily set on your project by selecting your game camera object and doing one of the following steps:
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Go to 'Component/Image Effects' menu and select the 'Amplify Occlusion' option. Note that you need to have a game object selected with a camera component, if not present it will create one
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Hit 'Add Component' on the camera Inspector View, type 'Amplify Occlusion' on the search box and select the result
Please refer to the following website for an up-to-date online manual:
http://amplify.pt/unity/amplify-occlusion/manual
Version 2 was developed by the talented Mário Luzeiro:
https://pt.linkedin.com/in/mluzeiro
https://twitter.com/mluzeiro