Is it possible to render a portion of an image with the GPU and the other portion with the CPU at the same time? If it is possible, do people usually render this way? If they don’t, why not? I know it’s possible to render different frames of an animation with the CPU and GPU at the same time. If the CPU and GPU rendered at the same speed, would rendering with both at the same time really be twice as fast as rendering with one of them alone?
I heard that GPU rendering uses a little bit of the CPU, but I don’t know if that’s true though.