Houdini 20.0 Nodes Geometry nodes

UV Transform geometry node

Transforms UV texture coordinates on the source geometry.

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The UV Transform operation transforms UV texture coordinates on the source geometry. Unlike the UV Edit operation, UV Transform supports animation of UVs.

UV Transform will automatically detect whether the input geometry uses point or vertex UV attributes, and will affect these attributes appropriately.

3D transforms are allowed in the UV Transform operation, as the UV attribute is actually 3 coordinates: U, V, and W. When used interactively, translates and scales are along the U/V axes while rotations are about the W axis.

Using UV Transform

  1. Click the UV Transform tool on the Texture tab.

    Note

    You can load the texture image as the background in your UV viewport to easily view edit changes.

  2. Drag the vertices using the UV Transform handles.

Parameters

Group

Subset of geometry to apply current operation to.

Group Type

The type of elements referenced in the Group field.

UV Attribute

The name of the texture coordinate attribute to transform, defaulting to uv.

Transform Order

Order in which transformations occur.

Rotate Order

Order in which rotations occur.

Translate

Amount of translation along uvw axes.

Rotate

Amount of rotation about uvw axes.

Scale

Non-uniform scaling along uvw axes.

Shear

Amount of shearing. The three values represent U on UV plane, U on UW plane, and V on VW plane respectively.

Pivot

Local pivot point for transformations.

Soft Radius

Area of influence.

Soft Type

Type of rolloff function.

Tangent Angles

Angles of the cubic rolloff function’s tangents. The first value applies to the tangent farthest from the source point, the second applies to the tangent closest to the source point.

Kernel Function

Metaball kernel to use when rolloff type is “Meta-ball”

Metric

Measure of distance to use when performing a soft transform.

Ignore Point Connectivity

Affect only points connected to the points in the group, or all points within the radius.

Ignore UV Connectivity

Affect only vertices connected to the vertices in the group as seen in the UV viewport.

Visualize Falloff

When to output the soft radius falloff as a vis_falloff point or vertex attribute.

Never

Never create or write to the vis_falloff attribute.

Always

Always create and write to the vis_falloff attribute.

When Viewport Tool Is Active

Only create or write to the vis_falloff attribute temporarily when the viewport tool for this node is active.

Locals

CEX, CEY, CEZ

The uv centroid of the input.

GCX, GCY, GCZ

The uv centroid of the input group.

XMIN, XMAX

The X extents of the uv bounding box of the input.

YMIN, YMAX

The Y extents of the uv bounding box of the input.

ZMIN, ZMAX

The Z extents of the uv bounding box of the input.

SIZEX, SIZEY, SIZEZ

The size of the uv bounding box of the input.

See also

Geometry nodes