Performance tuning ensures 3D applications deliver smooth experiences on personal computers with diverse hardware configurations. It involves balancing visual fidelity against frame rate stability.
Level of detail systems reduce polygon counts for distant objects, preserving resources while maintaining perceived quality. Automatic switching occurs based on distance or screen size.
Occlusion culling prevents rendering of hidden elements. Algorithms determine visibility before submission to the graphics pipeline, cutting unnecessary draw calls.
Texture streaming loads high-resolution maps only when needed. Mipmapping provides scaled-down versions for distant views, reducing memory usage and aliasing.
Instancing draws multiple copies of the same mesh in one call, ideal for repeated elements like foliage or crowds. It minimizes CPU overhead.
Batch combining groups small draw operations to limit state changes. This reduces driver workload and improves throughput.
Multithreading distributes tasks across cores for loading, physics, and AI while keeping rendering on a dedicated thread. Proper synchronization avoids stalls.
Dynamic resolution adjusts render target size based on current load, maintaining target frame rates during demanding scenes.
These techniques collectively allow complex 3D content to run acceptably on a wide range of PC systems.