The Triplanar Projection works in conjunction with a Triplanar map. It takes the coordinates in world or object space and will pick the projection axis depending on the active axis of the Triplanar map node. This gives a quick way to map a texture on any object, and presents the possibility for texture transforms local to each projection axis. The Triplanar map node has six input pins representing the positive and negative X, Y, and Z planes. The same or different texture nodes can be mapped to each of these input pins. In figure 1, The Triplanar Map and the Triplanar Projection nodes are used to map a Checks, Red RGB Color, and Blue RGB Color node to the six triplanar projection axes. 


Triplanar Projection

Figure 1: The Triplanar projection node used to map textures properly with the Triplanar Map node