Practical Real-Time Strategies for Accurate Indirect Occlusion

Jorge Jimenez, Xian-Chun Wu, Angelo Pesce, Adrian Jarabo

We present new systems for occlusion of indirect lighting: GTAO for screen-space ambient occlusion, which yield superior results than the current state of the art (HBAO) while being as fast as one of the fastest screen-space techniques (HemiAO), and GTSO, which is a series of approximations that accurately model specular occlusion under probe lighting.

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