Radix Sort

3. Radix Sort

• Why Important: Radix Sort is a non-comparative sorting algorithm and is faster than QuickSort for integers or fixed-length data types (e.g., IDs, bitmasks). Its complexity is O(N) for small key ranges.
• Where It’s Useful:
  • Sorting IDs for mesh vertices, bones, or texture indices.
  • Animation Frames: Sorting animation data with frame indices for playback.
  • Sorting LOD levels (Level of Detail) or objects by distance efficiently.

Why Radix Sort?:

• It’s very fast for fixed-size keys (integers or floats converted into fixed-size keys), which are common in graphics.