A C++ based renderer developed from scratch. It utilizes either ray tracing or path tracing to render a scene. The renderer supports global illumination, microfacet reflections, shadows, and area lights. Rendering can be done either with or without construction of a photon map.
Most of the theory from the Image Synthesis course and the Physically Based Rendering book.
| Ray Tracing | Path Tracing |
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| Ray tracing with Photon Mapping | Path tracing with Photon Mapping |
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$ git clone https://github.com/nikitakaraevv/ray-tracing-engine
$ cd ray-tracing-engine
$ mkdir build
$ cd build
$ cmake ..
$ makeRendering can be started by ./RayTracer and a set of input arguments to customize the process. You can take a look at the list of available arguments by calling ./RayTracer -help. Note that none of the parameters is mandatory for rendering since default values will be assigned to them at the beginning.
Here is a typical running command and some comments:
./RayTracer -width 420 -height 420 -m 1 -N 128 -p 50000 -k 10- The output image will be of size
420x420. -mdefines mode of rendering. 0 is for ray tracing, 1 for path tracing.- The number of traced rays through each pixel will be defined by
-N. - If
-pis used, renderer will create a photon map and use it to render the image.-kindicates number of nearest photons to be considered during rendering. - In addition the renderer saves intermediate results to
update.ppm.
- The output image will be of size