Number of tiles across the shadow atlas (Width/Height). Total shadow slots = AtlasTiles * AtlasTiles. Example: 12 tiles = 144 slots. Crucial for determining how many lights can cast shadows simultaneously.

Constant depth bias to prevent shadow acne (self-shadowing artifacts). Too high: shadows detach from objects (Peter Panning). Too low: moire patterns appear on surfaces.

Number of cascades to use for Directional Lights (typically 3 or 4). Cascades distribute resolution over distance. 4 cascades provide the best quality for open worlds but require 4 render passes per directional light.

Hard limit for the Shadow Atlas texture size (e.g., 16384). If (Resolution * AtlasTiles) exceeds this, the effective resolution per tile will be downscaled. Watch VRAM usage: a 16k atlas consumes ~2GB of memory.

Maximum number of point lights that can cast shadows. (Note: This logic is largely superseded by the AtlasTiles limit).

Bias applied along the surface normal to prevent acne on curved surfaces.

Number of samples for Percentage Closer Filtering (PCF). Ignored if a custom shader uses a different technique (e.g., Poisson Disk).

The resolution for a single shadow map slice (e.g., 2048 or 4096). A higher resolution reduces aliasing but increases VRAM usage significantly as it scales with the number of AtlasTiles.

Enables soft shadows if set (ValueSome).