| Multiply | Darken | Multiplies A and B. Result is always darker. Great for masking noise with a vignette. |
| Screen | Lighten | Inverts both, multiplies, and inverts back. Result is always lighter. Useful for adding "glow" or highlights. |
| Overlay | Contrast | Multiplies or Screens based on the base value. Preserves highlights and shadows. Excellent for adding detail to a heightmap. |
| Difference | Inversion | Subtracts the smaller value from the larger. Creates high-contrast edges where maps differ. |
| Add | Brighten | Simple addition (clamped to 1.0). Useful for combining multiple independent noise sources. |
| Subtract | Cutout | Subtracts B from A (clamped to 0.0). Perfect for "carving" valleys or rivers into terrain. |