Transform Shader
Node Description and Purpose: The Transform Shader allows you to "translate" (move) the 3D position of an input shader as well as scale (resize) it.
A shader is a program or set of instructions used in 3D computer graphics to determine the final surface properties of an object or image. This can include arbitrarily complex descriptions of light absorption and diffusion, texture mapping, reflection and refraction, shadowing, surface displacement and post-processing effects. In Terragen 2 shaders are used to construct and modify almost every element of a scene.