Houdini 20.5 Nodes Geometry nodes

HeightField Layer geometry node

Composites together two height fields.

Since 16.0

This node composites the height field layers in the first (“base”) input with the layers in the second (“layer”) input. The third input takes an optional mask.

The node will properly composite volumes that aren’t axis aligned (it will use the grid of the base input). So you can position and rotate the composited volume in 3D space before compositing.

Parameters

Layer Mode

How to composite the layers.

Blend

The amount to blend the second layer with the first layer, when Layer mode is “blend”. A value of 0 uses the first layer, a value of 1 uses the second layer, a value of 0.5 blends equally between the two layers.

Layers

A space-separated list of the layers to composite together from each input. For example, height mask will composite the height layers from each input, and the mask layers from each input. The default is *, meaning composite all layers.

Masking

If you use a mask input, the node only composites in the masked areas, and leaves the first input untouched in other areas.

Mask Layer

If a mask volume is wired into this node’s second input, this specifies which volume in the second input to use to mask this node’s effect, usually mask. Click the “Add mask paint” button to paint the mask directly in the viewport (this automatically adds a paint node to the second input).

Mask Strength

Scales the values in the mask. You can use this to make the mask stronger or weaker only in this node.

Invert Mask

Inverts the mask in this node, so compositing only happens in unmasked areas, and leaves the first input untouched in masked areas.

Remapping

Base Offset

Add this to the values in the first input before compositing.

Base Scale

Multiply the values in the first input by this before compositing.

Layer Offset

Add this to the values in the second input before compositing.

Layer Scale

Multiply the values in the second input by this before compositing.

Final Offset: Increase or decrease the final composited layer.

Final Scale

Multiply the values in the output by this after compositing.

Output Clamping

Clamp Minimum

Turn on the checkbox to clamp any values below this number in the output.

Clamp Maximum

Turn on the checkbox to clamp any values above this number in the output.

Geometry nodes