Add Texture adds the color values from two TexturesTextures are used to add details to a surface. Textures can be procedural or imported raster files. together, similar to the Add Layer mode in Photoshop®. Figure 1 shows a graph of an Octane material. The Add Texture node combines a Check texture with a red RGB Spectrum texture. The dark parts of the checks texture are tinted red.
Figure 1: Add Texture combines a Checks texture and a red RGB Spectrum texture