Metalness – normal map

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Study Materials

• YT crash course
• glTF
  • glTF tutorials/An Advanced Material
  • glTF 2.0 specification:
  • geometry: tangent, bitangent
  • additional maps
  • material
  • normalTextureInfo
  • glTF 2.0 sample models

To Do

• Load texture
  • [x] Texture
  • Scale
  • [x] Upgrade tinygltf to 2.5.0
  • [x] Access material properties directly
  • [x] If needed, update material/texture architecture
  • Add scale
    • [x] Load within NormalTexture
    • [x] Use scale
• Load tangent vector
  • [x] Load data
  • [x] Require tangent data for normal maps
  • [x] Generate missing data:
  • MikkTSpace
  • mikktspace-for-houdini
  • Fix warnings
  • CalculateTangentsIfNeeded #52
• [x] Compute modified normal
• Testing scenes
  • [x] Get
  • Generated tangent test problem: May be caused by different handedness somewhere. Try to fix alongside the handedness switch: #49

Extras

• Use modified microfacet normals #46

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Ta dá!