### Table 1: RMS errors associated to BRDF measurements for a diffuse material, considering three resolutions for the collector sphere and using four ray densities.

"... In PAGE 7: ... These aspects can be visually observed in Figure 8 which presents the profiles of these BRDF measurements. These error propagation trends can also be quantitatively verified through the RMS errors presented in Table1 . Since we do not have an analytical value to compare with, we used as reference BRDF values obtained considering 1010 rays.... ..."

Cited by 1

### Table 1: RMS errors associatedto BRDF measurements for a diffuse material considering three resolutions for the collector sphere and using four ray densities.

2002

### Table 1: Fitted parameters of the multi-lobe Cook-Torrance BRDF model to the measured BRDF data for several car paints. Rendering results using these parameters can be found in Figure 10.

### Table 2: RMS errors associated to BRDF measurements for a specular material (simulated using an exponentiated cosine distribution with exponent equal to 16), considering three resolutions for the collector sphere and using four ray densities.

Cited by 1

### Table 7, individual BRDF timings

"... In PAGE 8: ... The evaluation of the BRDF equation is reasonably trivial in computation time compared to all other stages in our volume-rendering pipeline. Refer to appendix A, Table7 for individual BRDF model rendering times. Conclusion The aim of our research is to investigate if reflection models play an essential role in the visibility and localization of certain objects within a collection of more objects.... In PAGE 9: ...eflectivity 0.8. Table 6 contains all measures from the flux overlap test. Table7 contains timings of each individual BRDF for an image size of 512x512 and only one object (the CThead). [9] Schlick-Lewis specular BRDF Rank Error BRDF combination 1 0.... ..."

### Table 6 below contains all measures from the flux overlap test. Table 7 contains timings of each individual BRDF for an image size of 512x512 and only one object (the CThead).

"... In PAGE 18: ... o Low error in flux overlap implies two different isotropic BRDF models each without physically plausible characteristics and without Fresnel behavior. Please refer to Appendix A, Table6 for a complete analysis results overview. 0.... In PAGE 32: ... Table6 , total flux overlap error results BRDF model Rendering time Ward h00:m57:s42 Ashikhmin h00:m55:s54 He-Torrance h00:m56:s12 Cook-Torrance h00:m56:s12 Schlick-Lewis h00:m55:s01 Phong h00:m55:s12 Strauss h00:m55:s25 Poulin-Fournier h00:m54:s42 Lafortune h00:m56:s07 Table 7, individual BRDF timings Page 32 ... ..."

### Table 6 below contains all measures from the flux overlap test. Table 7 contains timings of each individual BRDF for an image size of 512x512 and only one object (the CThead).

in morphology

"... In PAGE 18: ... o Low error in flux overlap implies two different isotropic BRDF models each without physically plausible characteristics and without Fresnel behavior. Please refer to Appendix A, Table6 for a complete analysis results overview. 0.... In PAGE 32: ... Table6 , total flux overlap error results BRDF model Rendering time Ward h00:m57:s42 Ashikhmin h00:m55:s54 He-Torrance h00:m56:s12 Cook-Torrance h00:m56:s12 Schlick-Lewis h00:m55:s01 Phong h00:m55:s12 Strauss h00:m55:s25 Poulin-Fournier h00:m54:s42 Lafortune h00:m56:s07 Table 7, individual BRDF timings Page 32 ... ..."

### Table 6 contains all measures from the flux overlap test. Table 7 contains timings of each individual BRDF for an image size of 512x512 and only one object (the CThead).

"... In PAGE 9: ...roceedings), volume 20, pages 143-150, (Aug. 1986). The Eurographics Association and Blackwell Publishers 1999. Table6 , total flux overlap error results [9] Christophe Schlick: A Customizable Reflectance Model for Everyday Rendering, Fourth Eurographics Workshop on Rendering, Series EG 93 RW, pages 73-84, 1993. BRDF model Rendering time Ward h00:m57:s42 Ashikhmin h00:m55:s54 He-Torrance h00:m56:s12 Cook-Torrance h00:m56:s12 Schlick-Lewis h00:m55:s01 Phong h00:m55:s12 Strauss h00:m55:s25 Poulin-Fournier h00:m54:s42 Lafortune h00:m56:s07 [10] J.... ..."

### Table 1: Comparison between the BRDF model in CIE XYZ color space and with spectrophotometric measurements. CIE XYZ values and x, y chromaticity coordinates are computed for illuminant D50 and 2 degree standard observer. The E values are computed from the CIE XYZ values.

"... In PAGE 3: ... As the BRDFs are originally estimated up to a linear scale factor we determine an opti- mal scale factor per object based on the luminance channel and scale the BRDF data accordingly. Table1 shows the resulting CIE XYZ values and x, y chromaticity coordi- nates. The difference between the measured and modeled values is given in E (computed from the rescaled CIE XYZ values).... ..."

### Table 3: Importance sampling the BRDF under complex illumination. This table presents the factor of improvement of our sampling strategy compared to alternative approaches when rendering a particular BRDF in the beach environment. Because the illumination contributes to the shape of the in- tegrand in the rendering equation, sampling according to the BRDF alone will be less efficient than when the illumination is constant. Although our factored representation still outperforms the alternative sampling strategies by a factor of 2-20, these results suggest the potential desirability of com- bining environment and BRDF sampling.

2004

"... In PAGE 7: ... However, our method is still at least a factor of 2 better, and for many of the materials, we see an improvement by a factor of 5-10. We also measured the effectiveness of importance sampling the BRDF using the factored representation under complex illumina- tion ( Table3 ). The experimental setup is identical to that for Ta- ble 2, except that the sphere was placed in the beach environment [http://www.... In PAGE 8: ...cribed by Matusik et. al. and using our factored representation (cf. fourth row of Table3 ). For such shiny BRDFs, computing a fixed set of 2D CDFs can still cause problems for regions of the domain for which the nearest pre- computed CDF of a particular view poorly matches the actual BRDF.... ..."

Cited by 26