The Operators category generates patterns as a result of a mathematical function. You can use these by themselves or combined with the Mapping and Color textures to create surface effects that are very memory efficient compared to loading bitmap images. You can also use these 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.