Browsing Portuguese Meeting on Computer Graphics 2014 by Subject "ambient occlusion"

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    • Ray Reordering Techniques for GPU Ray-Cast Ambient Occlusion 

      Costa, Vasco; Pereira, João Madeiras; Jorge, Joaquim A. (The Eurographics Association, 2020)
      Global illumination techniques, such as ambient occlusion, can be performed in a physically accurate way via ray casting. However ambient occlusion rays are incoherent. This means their computation is divergent causing a ...