Ray Tracer written in C++ with only GLM lib (No OpenGL or other libraries).
(GLM lib is used for matrix operations)
Program Last modified: 2019-03-18
This program reads an input file that contains details of each objects.
For instance, material property (specular, shininess, ambient, diffuse),
location of the objects (before trasnformation), transformation (scale, rotate, translate),
light sources, image dimension and eye location.
The program perform ray tracing by shooting ray from eye, and compute color based on
object intersection. In our implementation, each pixel on the image is computed by
one corresponding ray. We have also implemented recursive ray tracing for computing
reflections.
To accelerate our computation, we have implemented a basic uniform grid acceleration
structure. We partition the space by uniform grids and maintain a list of object that
intersects with each of the grids. We have used unordered map to enable quick lookup from
coordinate(grid) to the the corresponding list of objects. As the rays progress through space,
we check for the intersecting grid and its objects. This provides significant speed up for scene 7.
Scene 7's render time reduces from 1 hour to 15 minutes.
We do not have the permission to publish our code because of course policy.
However, we are able to publish the images we have rendered. The input files
are given from CSE 167 course at UCSD.
