CS 7650: Realistic Image Synthesis

Thiago Ize

HW4

I've gone ahead and implemented the new coloring model in my ray tracer and rendered the following images from inside the ray tracer. I'm using 1 spp in the the space dimensions and stratifying my samples in the color dimension. I set my background color to be (.1, .1, .1) in XYZ space (note that the background appears darker in the lower sampled images because I'm dividing out the luminosity from the bright specks). I normalize the luminosity by dividing my RGB output by the max value of Y (luminosity) before displaying the image. Like Andrew, I'm posting renders at the following color samples: 1, 4, 9, 16, 25, 36, 49, 81, 100, 121, 144, 625.

1 Sample/Pixel
4 Sample/Pixel
9 Sample/Pixel
16 Sample/Pixel
25 Sample/Pixel
36 Sample/Pixel
49 Sample/Pixel
64 Sample/Pixel
81 Sample/Pixel
100 Sample/Pixel
121 Sample/Pixel
144 Sample/Pixel
625 Sample/Pixel

And just for kicks, here's the dragon rendered with the macbeth material. The Macbeth Dragon at 64 Sample/Pixel