Performance Mode vs. Fidelity Mode
Performance Mode (Mobile / Low-End)
Processes the entire Texture2DArray using a single sampling operation, indexed by a grayscale map derived from your terrain painting. Extremely lightweight and efficient. Anti-Tiling and Tessellation Factor are applied globally across all layers.
Fidelity Mode (PC / Console)
Samples the Texture2DArray in parallel with hardcoded indices, producing razor-sharp normal maps and superior visual fidelity. Provides full creative freedom with per-layer controls for Tessellation Factor, Amplitude, and Anti-Tiling.
Even in Fidelity Mode, OptiTerra typically maintains a ~90% performance advantage over default Unity terrain rendering.