Practical real-time strategies for accurate indirect occlusion

Introduces “Ground truth based ambient occlusion” (“GTAO”)

https://www.activision.com/cdn/research/PracticalRealtimeStrategiesTRfinal.pdf better: https://www.activision.com/cdn/research/Practical_Real_Time_Strategies_for_Accurate_Indirect_Occlusion_NEW%20VERSION_COLOR.pdf

@article{jimenez2016practical,
  title={Practical real-time strategies for accurate indirect occlusion},
  author={Jim{\'e}nez, Jorge and Wu, Xianchun and Pesce, Angelo and Jarabo, Adrian},
  journal={SIGGRAPH 2016 Courses: Physically Based Shading in Theory and Practice},
  year={2016}
}

“Our technique bases on the horizon-based approach, but using an alternative formulation of the problem.” (Horizon Basesd Ambient Occlusion )

“We implement our technique efficiently by using temporal reprojection and spatial filtering to compute a noise-free ambient occlusion solution in just 0.5 ms per frame”

Temporal accumulation of the sampled ao?

References:

An ambient light illumination model: Apply the Rendering Equation to ambient occlusion, setting some assumptions to simplify it.