Real-time rendering of glossy materials with regular sampling

Rendering view-dependent, glossy surfaces to increase the realism in real-time applications is a computationally complex task, that can only be performed by applying some approximations—especially when immediate changes in the scene in terms of material settings and object placement are a necessity. The use of environment maps is a common approach to this problem, but implicates performance problems due to costly pre-filtering steps or expensive sampling. We, therefore, introduce a regular sampling scheme for environment maps that relies on an efficient MIP-map-based filtering step, and minimizes the number of necessary samples for creating a convincing real-time rendering of glossy BRDF materials.

[1]  Anton L. Fuhrmann,et al.  Real-time glossy reflections on planar surfaces , 2004, AFRIGRAPH '04.

[2]  Bui Tuong Phong.  Illumination for computer generated pictures , 1975, Commun. ACM.

[3]  Donald P. Greenberg,et al.  A comprehensive physical model for light reflection , 1991, SIGGRAPH.

[4]  Jaroslav Krivánek,et al.  Real‐time Shading with Filtered Importance Sampling , 2008, Comput. Graph. Forum.

[5]  Gregory J. Ward,et al.  Measuring and modeling anisotropic reflection , 1992, SIGGRAPH.

[6]  K. Torrance,et al.  Theory for off-specular reflection from roughened surfaces , 1967 .

[7]  Rui Wang,et al.  Eurographics Symposium on Rendering (2004) All-frequency Relighting of Non-diffuse Objects Using Separable Brdf Approximation , 2022 .

[8]  Jan Kautz,et al.  Precomputed radiance transfer for real-time rendering in dynamic, low-frequency lighting environments , 2002 .

[9]  Ravi Ramamoorthi,et al.  Real-time BRDF editing in complex lighting , 2006, SIGGRAPH 2006.

[10]  Hans-Peter Seidel,et al.  DACHSBACHER C.: Micro-rendering for scalable, parallel final gathering , 2022 .

[11]  Zen-Chung Shih,et al.  All-frequency precomputed radiance transfer using spherical radial basis functions and clustered tensor approximation , 2006, ACM Trans. Graph..

[12]  Jan Kautz,et al.  Fast Arbitrary BRDF Shading for Low-Frequency Lighting Using Spherical Harmonics , 2002, Rendering Techniques.

[13]  Robert L. Cook,et al.  A Reflectance Model for Computer Graphics , 1987, TOGS.

[14]  Christophe Schlick,et al.  An Inexpensive BRDF Model for Physically‐based Rendering , 1994, Comput. Graph. Forum.

[15]  Anselmo Lastra,et al.  The spatial bi-directional reflectance distribution function , 2002, SIGGRAPH '02.

[16]  Pat Hanrahan,et al.  Frequency space environment map rendering , 2002, SIGGRAPH.

[17]  Anselmo Lastra,et al.  Efficient rendering of spatial bi-directional reflectance distribution functions , 2002, HWWS '02.

[18]  Lszl Szirmay-Kalos,et al.  Monte Carlo Methods in Global Illumination: Photo-realistic Rendering with Randomization , 2008 .

[19]  László Szirmay-Kalos,et al.  An anisotropic BRDF model for fitting and Monte Carlo rendering , 2010, COMG.

[20]  Hans-Peter Seidel,et al.  Pre‐convolved Radiance Caching , 2012, Comput. Graph. Forum.

[21]  Jaroslav Krivánek,et al.  Real-time shading with filtered importance sampling , 2007, SIGGRAPH '07.

[22]  James F. Blinn,et al.  Texture and reflection in computer generated images , 1998 .

[23]  Hans-Peter Seidel,et al.  Unified Approach to Prefiltered Environment Maps , 2000, Rendering Techniques.

[24]  Harry Shum,et al.  Eurographics Symposium on Rendering (2004) All-frequency Precomputed Radiance Transfer for Glossy Objects , 2022 .

[25]  Peter Shirley,et al.  Image space gathering , 2009, High Performance Graphics.

[26]  Norman I. Badler,et al.  Multi-pass pipeline rendering: realism for dynamic environments , 1997, SI3D.

[27]  Kun Zhou,et al.  Interactive relighting with dynamic BRDFs , 2007, SIGGRAPH 2007.

[28]  P. Hanrahan,et al.  Triple product wavelet integrals for all-frequency relighting , 2004, SIGGRAPH 2004.

[29]  Pat Hanrahan,et al.  An efficient representation for irradiance environment maps , 2001, SIGGRAPH.

[30]  Edward H. Adelson,et al.  IMAGE DATA COMPRESSION WITH THE LAPLACIAN PYRAMID , 1981 .