Shadow Mapping is a technique for rendering shadows by projecting the scene onto a shadow map from the perspective of the light source. Three.js supports shadow mapping for directional, spot, and point lights.
Use Case:
Shadow mapping is vital for adding depth and realism to scenes by simulating light occlusion.
Advantages:
- Enhances depth perception and spatial awareness in 3D scenes.
- Supports dynamic lighting, allowing shadows to update in real time.
- Configurable resolution for balancing quality and performance.
Limitations:
- Suffer from artifacts like aliasing or shadow acne without proper configuration.
- High-resolution shadow maps can be performance-intensive.