##Project Introduction

Implementation of a ray tracer with shadows with mirror reflection and some advanced rendering effects.

##Acknowledgement Working with teammate Vivian Ma.(Credit to Vivian)
(Starter code from HKU course Computer Graphics.)

##Advanced rendering effects:

1. Flattening scene graph

   Cache the transformation matrices when doing the traversail to avoid recomputing each time.

2. Refraction: Snell's law.

   

3. Anti-aliasing: Multiple rays for each pixel and combine them to get the resulting color.
   

4. Texture mapping

5. Area light sources

6. Glossy reflections

   The generated image with primitives added.

   
   The generated image with soft shadow added.This is also the final image