The Triplanar texture provides easy assignment of 2D textures on objects that do not have UV coordinates. The node works by projecting one or more textures along either object or world space X, Y, and Z axes. In Figure 1, the Checks texture node connects to all six Texture Position inputs (TexturePosX, TextureNegX, TexturePosY, TextureNegY, TexturePosZ, TextureNegZ) of the Triplanar node.
Figure 1: The Triplanar node used to map a Checks texture from six directions around a sphere
Figure 2: The node network for the Checks texture mapped to the sphere in Figure 1
Blend Angle
The angle on an edge to blend two adjacent textures.
Coordinate Space
The orientation (Object or World) used for the texture blending.
Transform
Controls the Triplanar textures through a connected Transform node.
Positive And Negative Axes
Specifies the Procedural or Image textures assigned to these axes.