3D renderer with Rust and wgpu.

Features

• partial GLTF support
  • .gltf not yet supported (.glb is supported)
  • name fields in general are not respected
  • accessors
    • missing normalized ints and sparse accessors
  • images:
    • missing some mime types
    • uri missing
  • materials:
    • missing alphaMode, alphaCutoff, doubleSided, occlusion.strength
  • mesh
    • mesh.weights missing
  • primitive
    • mode (primitive topology) missing
      • winding order
    • targets (morph targets) missing
    • primitive attributes
      • only one each of JOINTS and WEIGHTS supported
      • COLOR missing!!! (vertex colors)
  • node
    • cameras not planned
    • missing skin, weights
  • scene: only renders the root scene
  • skin: 0%
  • animations: 0%
  • lights: 0%
  • cameras: not planned
  • extensions: no extensions planned
  • BRDF implementation needs to be checked for compliance
• importing equirectangular .hdr radiance maps (projected onto a rgba16f cubemap)
• baking mipmaps
• screen space skyboxes
• PBR (physically based rendering) along with IBL (image based lighting)
  • analytical lights: just directional for now
  • image based diffuse irradiance
  • split sum specular approximation (prefiltered env map calculated on the fly, BRDF LUT read from a texture)
• normal mapping (with world-space lighting)
• HDR (needs some improvement with physical units)
• 4x MSAA
• partial shader hot-reload (just of pbr.wgsl atm...)
• some basic camera movements for looking around with lmb drag and scroll

Roadmap

• fix energy loss with hdr map clamping
• normal generation
• tangent generation (mikktspace?)
• missing gltf properties
• .gltf file support
• ui
• KHR_materials_ior
• CSM cascaded shadow maps