Not so tiny path tracer

• Linux gcc-7 /clang-7 / gcc-10 / clang-10

• Windows MSVC 2019

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

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

✔️ : Complete

❌ : Not implemented but on the todolist

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