This paper describes the development of a virtual surgery system, called VQSplat. The system takes volume data as inputs and is capable of display multiple volumetric models, manipulating and editing (cutting) them. The system uses a hierarchical multi-resolution point rendering system, which is derived from an existing point rendering system, QSplat [1]. The features of VQSplat are listed as follows:• Use hierarchical multi-resolution point rendering system to render volume data,• Support multiple translucent object display,• Support object selection, manipulation, free cutting,• A unique hierarchical data structure to accelerate rendering process, as well as cutting, and object splitting,• Integrated support of raw volume data importing, image enhancement, normal estimation,• Portable code. Separate core library with user interface.