Material system

[FacoBackup]

BRDF

• 1 integer/bool flag for using bump map as vertex height displacement for terrain
• 9 uniforms for material textures
• 1 uniform for blend map
• 1 uniform for shadow atlas
• 1 uniform for GI + AO

  Layers

  Metallic + Baked AO + Roughness

• Separated textures group together
• Created via content browser

  Normal + Bump map (Used for terrain)

  Albedo + Emissive

• Created via content browser;
• 4 channels
• A channel for emissive flag

  Blend map

• Possibility to bind up to 3 channels (3 layers)
  • Metallic + Baked AO + Roughness (Separated textures group together;created via content browser; new file type)
  • Normal
  • Albedo + Emissive (new file type; Created via content browser; 4 channels, 1 channel for emissive only)

    Shadow atlas

    GI + AO

• 4 channels
• A channel is AO
• Generated at runtime

Debug

• Same uniforms of BRDF shader
• Integer flag for debug type
• Lighting complexity (quantity of lights affecting pixel)
• Overdraw based on depth map
• Each material channel
• Each material layer
• Wireframe view

Material Texture file

• New implementation of Texture, also managed by texture repository
• File type:
  • Color (albedo + emissive)
  • BRDF attributes (Metallic + Baked AO + Roughness)
  • Bump map and normal
• Texture base64 data?
  • Generated at file creation/update time
  • Biggest image resolution will be the one used for generating blend
  • Allow choosing resolution also
• No link to original textures
• Keep small 128 by 128 preview image of source textures

Ability to generate plane mesh for rendering terrain