macbear_3d 0.6.1

Macbear 3D is a lightweight 3D rendering engine for Flutter, built on Google ANGLE (OpenGL ES).

0.6.1

• Add:
  • Support Web build: Optimized for WebGL and Flutter Web integration.
  • Live Demo: Created automatic deployment to GitHub Pages.

0.6.0

• Add:
  • Terrain System: Procedural terrain generation using Perlin Noise (M3TerrainGeom, M3PerlinNoise).
  • PBR Shading: Support for Physically Based Rendering (metallic, roughness) in M3Material.
  • IBL (Image-Based Lighting): Environment-based realistic lighting using cubemaps.
  • Shader Refactoring: Modular shader architecture with unified pixel shader (Pixel.es2.frag).
  • Web Support: Fixed text rendering alignment and platform-specific WebGL constraints.
  • Platform Abstraction: Separated logic for Native and Web (PlatformInfo).
  • GUI System: Adopted Flutter Widgets for UI.

0.5.0

• Add:
  • Reflection: Added cubemap-based reflection (renderReflection).

0.4.0

• Add:
  • Core Engine: Refactored updateRender to use delta duration for precise physics and animation timing.
  • Skinned Meshes: Fixed world-space bounding box calculations and improved animation stability.
  • Resource Management: Improved handling of font assets and added loading state support.

0.3.0

• Add:
  • Cascaded Shadow Maps (CSM): Support for multiple shadow cascades (up to 4) for high-quality shadows over large distances.
  • Shadow Stability: Implemented bounding sphere-based cascade calculation and texel snapping to eliminate shadow shimmering.
  • Shadow Quality: Improved shadow pass to use front-face (CCW) rendering to prevent edge light leakage.
  • Dynamic Shadow Mode Switching: Ability to switch between standard shadow mapping and CSM at runtime.
  • Performance Optimizations: Efficient shadow atlas management and reduced draw calls for shadows.

0.2.0

• Add:
  • Bounding Volumes: Automatic AABB and Bounding Sphere calculation for all geometries.
  • Resource Manager: Centralized system for loading and caching assets (geometries, meshes, textures, fonts).
  • Font Support: TrueType (.ttf) and OpenType (.otf) font parsing.
  • 3D Text: New M3TextGeom for generating 3D geometry from text strings.
  • Render Stats: Real-time monitoring of engine performance (FPS, vertices, triangles, draw calls).

0.1.1

• Add:
  • UML diagram. https://open-vsx.org/vscode/item?itemName=jebbs.plantuml
  • screenshot images.

0.1.0

• Initial release of Macbear 3D engine.
• Features:
  • OpenGL ES support via flutter_angle.
  • Scene graph and entity component system.
  • 3D format support: glTF, OBJ.
  • Physics engine integration (Oimo).
  • Lighting, shadows, and texturing support.
  • Basic primitives and geometry builders.