Reworking material properties

[adriengivry]

Description

• Renamed Material properties from "uniforms" to "properties":
  • Shaders have "uniforms"
  • Materials have "properties"
• Updated Material implementation to use std::variant for properties rather than std::any:
  • Stronger type safety
  • In the past, it was possible to call Material::Set<double>(...), resulting in a double being stored and never being used (since we expected a float)
  • Increased memory footprint...
  • ...but faster runtime
• Laid the foundation for the shader variant system
• For textures, a property can either be of type:
  • HAL::TextureHandle*: backend texture, never serialized since no file is associated with it
  • Resources::Texture*: texture asset, serialized
  • both are made nullable (pointer) so the default "emptyTexture" (1x1 white square) can be used

Related Issues

N/A