There are many GPU rendering engines available for 3D design, each with its own advantages and disadvantages, features, and workflows. Redshift is a popular choice, providing fast and realistic results with features such as global illumination, ray tracing, physically based rendering, volumetrics, and subsurface scattering. OctaneRender is another widely used engine that delivers photorealistic images with features like spectral rendering, path tracing, light field baking, and deep pixel rendering. Blender Cycles is the native GPU rendering engine of Blender 3D software, producing high-quality images with path tracing, global illumination, physically based shading, motion blur, and depth of field. All three engines offer a user-friendly interface and a rich library of materials and presets. Redshift has an out-of-core technology that allows for large scene rendering and OctaneRender has a cloud rendering service for access to more GPUs online.