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Multi-scale Visualization of Molecular Architecture Using Real-Time Ambient Occlusion in Sculptor

Fig 5

Illustration of SSAO approaches.

(a-b) Point-based SSAO for (a) concavity and (b) convexity. Red marks show sample points behind the surface, green ones in front of it. In (a), most points are behind the surface, resulting in high AO. In (b), most points are in front of the surface, resulting in low AO. (c) Line-based SSAO. The green parts of the lines are in front of the surface; the red parts are hidden. Computing the ratio of visible vs. hidden parts yields an AO factor of higher granularity than what can be achieved by the point-based method.

Fig 5

doi: https://doi.org/10.1371/journal.pcbi.1004516.g005