Voxelization and voxel buffer update

[FacoBackup]

Chunks

• [x] Chunks of a configurable resolution
  • Chunk metadata
  • Center
  • Buffer offset
  • Node quantity (quit if node quantity is smaller than the travelled distance)
• [x] Write chunk data to disk
  • Use manual serialization/deserialization of the int values
• [x] Load chunks based on camera position
  • Grid chunk positioning
  • Load chunk based on which grid cell the camera is located at
  • Create a hashmap of grid cell -> chunk
• [x] ~Partial svo buffer update~ individual buffers for chunks
  • ~Shift other chunks, so data is kept linearly~

Voxelization

• [x] Sample albedo texture
  • Store sampled color on 23bit mask used for childIndex on the parent of the lowest level of the octree
  • Compress RGB into 23bit color
• [x] Everything has to be async and not dependent on either opengl or the rendering task