renderStacks is a render pass and generic task manager for 3ds Max, comparable to tools like RPManager, LPass Manager, Prism, StateSet and Scene State. It lets you define a sequence of tasks to be executed per pass, and you can have unlimited passes in a single scene. For a pass, you can set the viewport camera and resolution, assign an output path, set a frame range, and apply a material to specific objects, all configured once so you can concentrate on the work.
Control is handled through pmodifiers covering areas such as camera, resolution, materials, render output, renderer switching, render elements, lights, atmospherics, exposure, environment, transforms, visibility and object properties, plus submission through BackBurner and Deadline. The aim is to be smarter, faster and more stable than comparable managers, and to prevent common human errors during scene management.
renderStacks is not limited to submitting renders. You can save simulation parameters with a pass to compare fluid simulation variations, or toggle states such as turning TurboSmooth modifiers on and off between a "Model" and "Preview" pass. In effect, it can toggle between different parameter states.