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Changelog

All notable changes to this project will be documented in this file.

[2.1.1] - 16-07-2022

This patch is intended for minor adjustments on documentation and configuration files:

Changes

  • Improved readme installation guide
  • Updated nimble file dependencies and version number

[2.1.0] - 09-07-2022

This patch only changed the pfm2png command, whose parameters were renamed:

Changes

  • input_filename -> inputfile
  • output_filename -> outputfile

[2.0.0] - 09-07-2022

Big changes were made since the last release which makes some of the old code incompatible with the new version.

Added

  • RaytracingAlgorithm modules
    • postprocessing.nim: A collection (small for now) of postprocessing effects to improve the quality of a rendered image.
  • Documentation
    • RaytracingAlgorithm language documentation added here.
    • First tutorial documentation added here.

Incompatible changes

  • Removed the possibility of calling the stats module as it drastically slows down the program. (Will be reinserted on parallelization)
  • Added postprocessing effects inside .rta language.
  • HdrImage parsing functions are made static

Other changes

  • Drastically improved tests
  • Added more textures
  • Separated triangles into mesh triangles & triangles
    • MeshTriangles: Only store the parent mesh and the indices of the relative vertices/normals/texture points of the mesh
    • Triangles: Don't take part of a mesh. Has no parent mesh and stores the vertices/normals/texture points directly, instead of indices.
  • Fixed minor bugs
    • Animation was working incorrectly due to wrong definition of interpolation function (just commented out for now)
    • Fixed some wrong exception messages in parser.nim

Next planned steps

  • Add a texture manager class
  • Animate camera as object & animate other shape properties (outside transform)

[1.0.0] - 21-06-2022

Unfortunately, the package versions were not updated for a long time, so this one will have a lot of changes.

Added

  • GitHub actions for automatic tests on 6 virtual machines.
  • .gitignore to exclude outputs and quick/unwanted tests.
  • Example scene files (to be added to demo command).
  • Parallel image creation system using GNU parallel.
  • Few textures (grass, sky, etc).
  • Few Wavefront .obj files for triangle meshes.
  • source.txt with some links to useful documents regarding some algorithms and concepts.
  • Main file (src/RaytracingAlgorithm.nim)
    • Demo command which computes a pre-defined scene.
    • Render command which generates a runtime image based on a scene file. (including animations)
    • PFM to PNG command which converts a .pfm image to a .png image
  • Added RaytracingAlgorithm modules
    • AABB.nim: Shape bounding boxes.
    • animation.nim: Animation controller for an animation.
    • animator.nim: Animator component of a shape which controls its animation.
    • camera.nim: Implements a camera / screen which shoots light rays. (backward raytracing)
    • imagetracer.nim: Class responsible for the conversion of ray outputs into an image.
    • lights.nim: Different light sources for the PointLight renderer technique. (for now only pointlight)
    • material.nim: Contains Pigment and BRDF implementation for the application of materials onto shapes.
    • mathutils.nim: Set of utility functions relative to mathematics (most important: CreateOnbFromZ, Lerp)
    • matrix.nim: Implementation of a 4x4 matrix with all its functions
    • parser.nim: Implementation of lexer and parser structure for reading a scene file.
    • quaternion.nim: Contains a complete quaternion implementation with all its functions.
    • ray.nim: Class for a ray
    • rayhit.nim: Holds all necessary information for a ray hitting a surface in the scene.
    • renderer.nim: Various techniques for shooting and bouncing rays across the scene.
    • scene.nim: Class holding all informations relative to a scene, such as: scene shapes, scene materials, scene settings, scene variables and more.
    • settings.nim: Scene settings (AA, stats, logs, etc...)
    • shape.nim: Shapes class (sphere, plane, triangle, etc..)

Updated

  • Updated RaytracingAlgorithm modules
    • color.nim: get_pixel no longer requires var in HdrImage
    • logger.nim: renamed quit procedure for logging system

[0.1.1] - 31-03-2022

Added

  • LICENSE switched to GNUv3.
  • Added shields to README for better first-impression informations.
  • Opened geometry branch for geometry implementations.

[0.1.0] - 30-03-2022

Added

  • This CHANGELOG file to hopefully serve as an evolving example of a standardized open source project CHANGELOG.
  • Tone mapping and gamma correction for conversion of PFM images to PNG images.
  • LICENSE set to MIT
  • Added numerous tests