Castor3D

Castor3D is a 3D engine written in C++ 20. It works on Windows and GNU/Linux and using Vulkan as rendering API. The project itself is compilable on supported platforms using CMake and vcpkg (\ref build).

Features

Clustered lighting to compute all light sources.
Using a visibility buffer for opaque objects.
Blended Weighted rendering for transparent objects.
Normal mapping (using Mikktspace or explicit bitangents specification).
Shadow Mapping (allowing to choose between Raw, PCF or Variance Shadow Maps).
Parallax Occlusion mapping.
Screen Space Ambient Occlusion (using Scalable Ambiant Obscurance).
Reflection/Refraction Mapping.
PBR rendering (Metallic and Specular workflows), and Phong/Blinn-Phong rendering.
HDR rendering with various tone mapping operators and various colour grading operators.
Screen Space Subsurface Scattering (without backlit transmittance yet).
Volumetric Light Scattering for the directional light source, if it projects shadows.
Cascaded Shadow Maps for the directional light source.
Global Illumination, through Light Propagation Volumes (layered or non layered, with or without geometry injection), or through Voxel Cone Tracing.
Frustum culling.
Scene graph.
Render graph.
Modular architecture through plug-ins.
Shaders are generated automatically from pipeline configuration.
Shaders are writable directly from C++ code.
Scenes are described using a text format easily comprehensible and extensible.
Synchronous (user defined) or asynchronous (thread) rendering.
Using Mesh and Task shaders, if available.
GUI primitives.

Implemented Plug-ins

Importers

ASSIMP: Multiple format mesh importer.
glTF: glTF 2.0 importer, more precise than assimp's provided one, using fastgltf library.

PostEffects

Bloom: HDR Bloom implementation.
PbrBloom: PBR Bloom implementation.
DrawEdges: Detects and renders edges, based on normal, depth, and or object ID.
FilmGrain: To display some grain on the render.
GrayScale: Converts render in gray scale.
LightStreaks (using Kawase Light Streaks).
FXAA Antialiasing.
SMAA Antialiasing (1X and T2X so far).
Linear Motion Blur.
DepthOfField: Implementation of this depth of field

Generators

DiamondSquareTerrain: to generate terrains inside Castor3D scenes, using diamond-quare algorithm.

Generic

ToonMaterial: A toon material (to be combined with DrawEdges plugin).
WaterMaterial: Water material, using normal maps.
FFTOceanRendering: Ocean rendering using FFT generated surfaces.
WavesRendering: Basic ocean rendering, specifying waves attributes.
AtmosphereScattering : Sky and atmosphere rendering (using Scalable and Production Ready Sky and Atmosphere Rendering Technique).

ToneMappings

LinearToneMapping: Default tone mapping.
HaarmPieterDuikerToneMapping: Haarm Pieter Duiker tone mapping.
HejlBurgessDawsonToneMapping: Hejl Burgess Dawson tone mapping.
ReinhardToneMapping: Reinhard tone mapping.
Uncharted2ToneMapping: Uncharted 2 tone mapping.
ACES: ACES tone mapping.

Other applications

CastorViewer: A scene viewer based on Castor3D.
CastorMeshConverter: A converter from various mesh files to Castor3D mesh format.
CastorMeshUpgrader: Upgrades from earlier versions of Castor3D mesh format to the latest one.
HeightMapToNormalMap: Converts height maps to normal maps.
ImgConverter: Allows you to convert any image file type to XPM or ICO.