Intro to Data Oriented Design for Games

Data-oriented design (DOD) offers game developers a systematic approach to CPU performance optimization by focusing on memory layout and cache efficiency. The approach emphasizes processing data in bulk rather than individual objects, using techniques like struct alignment, avoiding pointer indirection, and organizing data by usage patterns. Key principles include minimizing cache misses, processing similar data together, and eliminating branching logic within tight loops. Practical optimizations demonstrated include converting classes to structs, removing function callbacks, hoisting loop invariants, and using specialized data structures like swap-back arrays for efficient deletions.