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Blend

modifier.blend · Combine · Mask-aware

Composites two fields by a mode (normal, add, subtract, multiply, max, min, difference) eased in by opacity.

Purpose

Composites two fields into one by a chosen mode, eased in by opacity. Reach for it to layer detail onto a base, add or subtract shapes, or lay one field over another through a mask.

Inputs

  • base
  • overlay
  • mask (optional)

Outputs

  • out

Parameters

Parameter Type Range Default Unit Description Field-driven
Mode (mode) enum normal, add, subtract, multiply, max, min, difference normal How the overlay is combined with the base field. no
Opacity (opacity) float [0, 1] 1 no

Layer contract

Honours a mask on its input, applying everywhere the mask is absent.

Behaviour

The modes are the usual compositing operations: normal, add, subtract, multiply, max, min, and difference. A mask input confines the composite to part of the terrain, so an overlay lands only where you select.