Zero3D 1.1.0

Zero3D

Enterprise Pure C# 3D Graphics, Scene Graph, Mesh Primitives, glTF/OBJ/STL Loaders & Simulation Engine for .NET.

Part of the ZeroUniverse / ZeroPlatform ecosystem.

Key Features

• Pure C# 3D Mathematics: Vec3, Vec2, Mat4, Quat, Ray3D, Plane3D, Aabb3D with SIMD-ready layouts, Euler/Quat conversions, frustum matrix setup, and fast ray intersections.
• Camera System: Perspective & Orthographic projection, screen-point-to-ray unprojection for mouse picking, 6-plane frustum extraction, OrbitCameraController (Arcball/CAD inspector), and FlyCameraController (WASD walkthrough).
• Procedural Mesh Primitives: High-quality geometric generators for Box/Cube, UV Sphere, Cylinder, Plane, and Torus.
• Multi-Format Model Loaders (IO):
  • glTF 2.0 & Binary GLB: Full scene graph hierarchy, transforms, meshes, primitives, accessors, bufferViews with Zero-dependency embedded JSON tokenizer.
  • Wavefront OBJ: Multi-group objects, vertex positions, normals, UV texture coordinates, polygon fan triangulation.
  • Stereolithography STL: Binary STL & ASCII STL format parsing and Binary STL export for 3D Printing and CAD/CAM.
  • Unified LoadAuto: Single entry-point automatic file format detection and loading.
• Hierarchical Scene Graph: Transform inheritance (WorldTransform = LocalTransform * ParentWorld), hierarchical AABB bounds, recursive child search, and fast bounding-box raycast picking.
• Rendering Pipeline: Frustum culling, automatic state sorting (opaque front-to-back, transparent back-to-front, wireframe), Blinn-Phong lighting evaluation with Directional, Point, Spot, and Ambient lights.
• Multi-Targeting: .NET Standard 2.0, .NET Framework 4.6.2, .NET 8.0. Zero external unmanaged C++ dependencies.

Architecture

Zero3D/
├── Camera/       # Camera3D, OrbitCameraController, FlyCameraController
├── IO/           # GltfLoader, ObjLoader, StlLoader
├── Lighting/     # Light3D, LightType
├── Materials/    # ColorRgb, Material3D, PbrMaterial
├── Math/         # Vec3, Vec2, Mat4, Quat, Ray3D, Plane3D, Aabb3D
├── Mesh/         # Vertex3D, SubMesh, Mesh3D, MeshPrimitives
├── Rendering/    # RenderCommand, RenderPass, RenderStatistics, SceneRenderer
└── Scene/        # SceneNode, Scene3D, RaycastHit