Rendering - Project#2 Realistic Camera

R96944043 周伯相

http://www.cmlab.csie.ntu.edu.tw/~zho/

Project #2

Most computer graphics algorithms assume pin-hole camera model. However, it can't capture some important characteristics of lens system used in most modern cameras, usch as depth of field, distortion, vignetting and sptaillay varying exposure.

Implementation

• build an appropriate data structure for the lens system
• build code to full simulation trace rays through this stack of lens.
• Write the RealisticCamera:GenerateRay function to trace randomly sampled rays through the lens system by firing rays at the back element of the lens.
• Render images for the test scenes. Decrease the noise by changing the "integer pixelsamples" parameter.
• Vary pixels' weights according to the radiometry fomula.

4 samples per pixel

Result	Reference Image

 

32 samples per pixel

Result	Reference Image

512 samples per pixel

Result	Reference Image

 

Reference

-Physically Based Rendering from Theory to implementation