Operators are texture modifiers that use mathematical (arithmetic) functions to generate new patterns from the input textures. These can then be used by themselves or in combination with the Mapping and Color textures to create surface effects that are very memory efficient compared to direct loading of bitmap images. These are also used to create bump maps and other advanced materials with minimal impact to GPUThe GPU is responsible for displaying graphical elements on a computer display. The GPU plays a key role in the Octane rendering process as the CUDA cores are utilized during the rendering process. memory.