Transforms provide control over the texture map placement on object surfaces. Most Projection and Generator nodes offer similar controls, but the Transform nodes provide an additional level of control for texture placement. The values in a Transform node are multiplied by the identical values in a Projection or Generator node. You can also use the Transform nodes to control geometry object placement in a scene. The transform nodes can be accessed under the Transform parameter of an Octane material or from the Transform category in the NodeGraph Editor window (figure 1).
Figure 1: Accessing the transform nodes in the Parameter window and the NodeGraph Editor.