This node creates a linear composition between two terrains. At each vertex, the value of the output terrain is equal to the value of the first input terrain multiplied by the first coefficient, plus the value of the second input terrain multiplied by the second coefficient. The second input terrain is scaled to fit the size of the first input terrain.

To add a node, right click in the Graph Editor and select
**Create Node > Terrain Composition >
Composition**.

Double click on the node to open its parameters:

Set the coefficients for the first and second terrain in the parameters dialog.

**Coefficient for the first terrain**: The coefficient by which the height of the first input terrain is multiplied.**Coefficient for the second terrain**: The coefficient by which the height of the second input terrain is multiplied.

When both coefficients are equal to 1, the result is identical to that produced by the Sum node. When the first coefficient is equal to 1 and the second is equal to -1, the result is identical to that produced by the Difference node. When both coefficients are equal to 0.5, the result is identical to that produced by the Average node.

Parameter | Use |
---|---|

Coefficient for the first terrain | The coefficient by which the height of the first input terrain is multiplied |

Coefficient for the second terrain | The coefficient by which the height of the second input terrain is multiplied |

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