Screen Space Spherical Harmonic Occlusion
نویسندگان
چکیده
Email: [email protected] [email protected] References Simulating global illumination demands for solving the lighting integral of a surface point. Ambient Occlusion (AO): pro: appealing approximation of local occlusion con: no directional information (static gray shadows) Screen Space Directional Occlusion (SSDO) [Ritschel09]: pro: combination of occlusion sampling and lighting con: no easy integration into existing systems Spherical Harmonic Lighting (SHL) [Green03]: pro: compact representation of directional occlusion information using Spherical Harmonics (SH) con: expensive calculation of SH occlusion function using ray tracing Idea: Use screen space sampling for the calculation of the SH occlusion function to achieve directional lighting e ects per pixel. Performance Comparison
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تاریخ انتشار 2012