A single shader node for parallax mapping. The height map sits inside the node, and the step value sets how many iterations to take, instead of a large node group. It works in Cycles and EEVEE.
Version 1.1, for Blender 5.0, adds a Parallax Closure node for any texture, a shader repeat zone so the shader compiles once, orthographic and panoramic cameras, and scale and offset for UVs. A free version is on Blender Extensions.
