DiRender

Not so tiny path tracer

Note: This program is being modified to meet the requirements of the CSE168 course by Prof Ravi Ramamoorthi.

Features

:question: : partial, may not work, broken because of code evolution

:heavy_check_mark: : Complete

:x: : Not implemented but on the todolist

:question: Debugger
Integrator
- :heavy_check_mark: Path tracing(Multiple Importance sampling, Russian Roulette and Shadow Ray)
- :heavy_check_mark: Direct Lighting
- :heavy_check_mark: Blinn-Phong Integrator(like that in OpenGL)
- :x: Photon Mapping
Material
- :heavy_check_mark: CookTorrance(with GGX importance sampling)
- :heavy_check_mark: Blinn-Phong(with importance sampling)
- :heavy_check_mark: Glass
- :heavy_check_mark: Dielectric
- :heavy_check_mark: lambertian(with cosine weighted sampling)
Accelerator
- :heavy_check_mark: Naive BVH
- :x: SAH BVH
- :heavy_check_mark: linear list(just for testing)
Sampler
- :heavy_check_mark: Naive sampler(std::mt19937)
- :heavy_check_mark: Halton sequence(no scramble)
- :x: Sobel sequence
Camera
- :heavy_check_mark: Naive camera
- :x: Motion blur
- :x: Depth of field
Shape
- :heavy_check_mark: Triangle
- :heavy_check_mark: Quad
- :heavy_check_mark: Sphere
Texture
- :heavy_check_mark: Constant Texture
- :heavy_check_mark: Checker Texture
- :x: loading image texture(It is a little trivial. Some work has been done for it but there is still a lot to do)
Parser
- :heavy_check_mark: TOML parser(see cornel_box.toml)
- :heavy_check_mark: Ravi parser(the format Prof Ravi defines in CSE168)
Math
- :heavy_check_mark: Vec3,Point3,Mat4
- :heavy_check_mark: AABB
- :heavy_check_mark: Transform

Cornel Box (1200 x 1200 x 1024spp,about 35mins)

Matte, dielectric, glass and Cook-Torrance material
Debugger
QuadLight(640 x 480, 128spp, cosine weight sampling)
QuadLight(640 x 480, 128spp, Blinn-Phong importance sampling) This one looks much better.
Ajax(768 x 768, normal integrator) Not difficult but amazing.