b3dLightShadowRangeMultiplier

Sets shadow range multiplier for light shadow coverage area. Takes light (light handle from b3dCreateLight), multiplier (shadow range scale factor, 1.0 = default, > 1.0 = larger coverage, < 1.0 = smaller coverage, typical 1.0-3.0). Returns nothing. Scales shadow map orthographic projection size for directional lights.

Shadow coverage: multiplier scales orthographic projection width/height (larger multiplier = shadow map covers wider area, smaller multiplier = shadow map covers tighter area), affects shadow resolution per unit (larger coverage = lower pixels per unit = less detail, tighter coverage = higher pixels per unit = more detail). Typical values: tight (0.5-1.0 for close-up detailed shadows), medium (1.0-1.5 for balanced coverage), wide (2.0-3.0+ for large outdoor scenes).

Use cases: (1) Large outdoor (multiplier 2-3 to cover terrain), (2) Indoor (multiplier 0.5-1.0 for detail), (3) Following camera (adjust multiplier based on zoom level). Trade-off: larger multiplier reduces shadow detail (same shadow map resolution spread over larger area), smaller multiplier increases detail but may not cover entire scene.

Related: b3dCreateLight creates light, b3dLightShadowNearFar sets depth range, b3dLightShadowCameraDistance offsets camera position, b3dLightShadowMaxDistance sets maximum distance.