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The Transform operation transforms the source geometry in “object space” using a transformation matrix.
All primitives selected will receive the same transform. To vary the transform by a point attribute, use the Transform By Attribute SOP.
Vector VDBs will have their internal values transformed according to the transform hint in their intrinsic data.
SDF VDBs will not have their internal values updated, even if a uniform scale is performed. This can be done with a VDB Combine by setting the A Multiply value to the scale amount.
Subset of geometry to transform.
The type of elements referenced in the Group field.
Order in which transformations occur.
Order in which rotations occur.
Amount of translation along xyz axes.
Amount of rotation about xyz axes.
Non-uniform scaling along xyz axes.
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.
The local pivot space’s translation value for transformations.
The local pivot space’s rotation value for transformations.
These attributes are transformed, if they are marked as transforming.
Use Attribute Create to set the transformation type on an attribute to Position, Vector, Normal, Quaternion, or Transform Matrix. Set the type to None to make an attribute non-transforming, or
remove it from this list. Primitive transforms are affected if and only if
P is transformed.
Recompute Point Normals
Recomputes all normals as point normals, if a normal attribute exists.
Recompute Affected Normals
Recomputes any normals that are affected by polygons that use both transformed and untransformed points. When transforming the full geometry or full connected components, the results should be the same as when this option is off, i.e. the normals will just be transformed and not recomputed. This does nothing if
P is not being transformed.
Preserve Normal Length
Normal lengths remain unaffected.
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.
If this field is not blank, the node creates a detail attribute with this name, containing a 4×4 matrix representing the applied transform. You can use this, for example, to apply the same transform elsewhere, or reverse the transformation later in the chain.
If the Output attribute already exists, this controls how/whether the node combines the new transform with the existing one in the attribute. “Post-multiplication” applies the transform in the same way as if you wired multiple transform nodes to each other in the network.
CEX, CEY, CEZ
The centroid of the input
GCX, GCY, GCZ
The centroid of the input group
The X extents of the bounding box of the input
The Y extents of the bounding box of the input
The Z extents of the bounding box of the input
SIZEX, SIZEY, SIZEZ
The size of the bounding box of the input