This project is inspired by Peter Shirley's Ray Tracing series.

• Basics
  • Computer Graphics
  • C in Practice
• Hopefully
  • CUDA Acceleration
  • Perfromance Engineering

1200 16:9 500 samples per pixel 50 max depth 
16 partitions

./inOneWeek > image_parallel.ppm  49831.04s user 333.87s system 1242% cpu 1:07:16.10 total

prime-select nvidia

# restart the computer to make sure correct driver is loaded

time ./obj > final.ppm
Rendering a 1200x800 image with 500 samples per pixel in 8x8 blocks.
took 146.189 seconds.
./obj > final.ppm  146.42s user 0.14s system 99% cpu 2:26.65 total

Rendering a 1200x800 image with 500 samples per pixel in 8x8 blocks.
took 129.241 seconds.
./obj > final.ppm  129.46s user 0.15s system 99% cpu 2:09.67 total

Rendering a 1200x800 image with 500 samples per pixel in 8x8 blocks.
took 130.967 seconds.
./obj > final.ppm  131.20s user 0.14s system 99% cpu 2:11.39 total

• Ray Tracing Essentials from nVidia

  • Ray Tracing Essentials, Part 1: Basics of Ray Tracing

    • view ray, shadow ray
    • do it from the eye, limited number of rays to cast
    • in film, 3000 rays per pixel, add up rays and approximate the right answer.

  • Ray Tracing Essentials Part 2: Rasterization versus Ray Tracing

    • Rasterization (z-buffer) loop:

      for each object
        for each pixel -> closer ?
      

    • Ray Tracing loop:

      for each pixel
        for each object -> closest ?
      

    • Bounding Volume Hierarchy (BVH)

      • a tree structure for effecient rendering
      • model's triangles are divided by multiple boxes, so the ray only will check a subset of all triangles.

    • Rasterization and Ray Tracing can work together.

  • Ray Tracing Essentials Part 3: Ray Tracing Hardware

  • Ray Tracing Essentials Part 4: The Ray Tracing Pipeline

    • Ray Tracing pipeline has 5 shaders:
      • Control other shaders:
        • Ray generation shader
      • Define object shapes:
        • Intersection shader(s)
      • Control per-ray behavior (often many types)
        • Miss shader(s)
        • Closest-hit shader(s)
        • Any-hit shader(s)

  • Ray Tracing Essentials Part 5: Ray Tracing Effects

    • Hard shadows: shooting one ray from a point light
    • Soft shadows: shooting a bunch of rays from an area light
    • light bouncing around: Interreflection / Indirect lighting / Color bleeding / Global illumination
    • Glossy reflections
    • Ambient occlusion
      • It has been used with rasterization for a long time.
      • With ray tracing, we can get a better answer.
    • Depth of field.
    • Motion blur
    • Ray marching (an atmospheric effect)
    • Caustics
      • light effect with water or other transparent media

  • Ray Tracing Essentials Part 6: The Rendering Equation

    • It sums up how lights get into the eye
    • How to sample the rays on one point in the scene
      • Random sampling uniformaly over a unit sphere
      • Add BSDF
      • Add ligithing

  • Ray Tracing Essentials Part 7: Denoising for Ray Tracing

    • using denoise will improve the performance.
      • less samples per pixel
    • start with a noisy result and reconstruct
    • many different approaches
      • denoising by effect
      • deep learning for image denoising

• Ray Tracing Gems

• Ray Tracing Gems II (Under construction)

• Introduction to Realtime Ray Tracing

• Ray Tracing Resource Page

• UCD: Depth Buffers and Ray Tracing

• UCD: Ray Tracing

• Introduction to Computer Graphics (fall 2018), Lecture 12: Accelerating Ray Tracing

• Future of Gaming : Rasterization vs Ray Tracing vs Path Tracing

• Pixar in a Box: Virtual Cameras

• UCB CS184/284A

  • Cameras & Lenses I
  • Cameras & Lenses II
  • Cameras & Lenses III

• UW Thin Lenses

• Depth of Field in Path Tracing

• Ray Tracing in One Weekend
  • An Even Easier Introduction to CUDA
  • Accelerated Ray Tracing in One Weekend in CUDA
• Ray Tracing: The Next Week
• Ray Tracing: The Rest of Your Life

Use valfrind and cuda-memcheck together. reference

com.spotify.docker.client is no longer maintained, I have to download 2 jars manually and copy them to $ECLISPE/dropins/plugins. Then start eclipse with eclipse -clean, so the eclipse will clean the cache and load plugins.

• Dependencies
  • com.fasterxml.jackson.datatype.jackson-datatype-guava_2.9.9.v20190906-1522.jar
  • com.spotify.docker.client_8.11.7.v20180731-1413.jar

Beginner-Friendly Vulkan Tutorials

How to Learn Vulkan

After installation, vkcube is a black window. I have to remove intel_icd.* and radeon_icd.* from /usr/share/vulkan/icd.d/ in order to pass vkvia