Houdini 11 Nodes Surface nodes

The Transform operation transforms the source geometry in “object space” using a transformation matrix.

The Transform operation transforms the source geometry in “object space” using a transformation matrix.

Parameters

Group

Subset of geometry to transform.

Group Type

The type of elements referenced in the Group field.

Transform Order

Order in which transformations occur.

Rotate Order

Order in which rotations occur.

Translate

Amount of translation along xyz axes.

Rotate

Amount of rotation about xyz axes.

Scale

Non-uniform scaling along xyz axes.

Shear

Amount of shearing. The three values represent shearing in the X direction on the XY plane, in the X direction on the XZ plane, and in the Y direction on the YZ plane, respectively.

Pivot

Local pivot point for transformations.

Uniform Scale

Uniform scaling.

Recompute Point Normals

Recomputes point normals if they exist.

Preserve Normal Length

Normal lengths remain unaffected.

Invert Transformation

Use the inverse of the transformation. This is the transformation which undoes the specified transformation. Two transform SOPs with all parameters but this equal will cancel out each other’s transformation.

Local variables

CEX, CEY, CEZ

The centroid of the input

GCX, GCY, GCZ

The centroid of the input group

XMIN, XMAX

The X extents of the bounding box of the input

YMIN, YMAX

The Y extents of the bounding box of the input

ZMIN, ZMAX

The Z extents of the bounding box of the input

SIZEX, SIZEY, SIZEZ

The size of the bounding box of the input

Examples

Load | Launch

.../examples/nodes/sop/xform/ModulusTransform.otl

Create a cyclical animation using the Transform SOP, the Group SOP, and the modulus operation.

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