Research On The Technology Of 3D Garment Simulation In Virtual Human Animation

In recent years, physically based 3D garment simulation techniques have received much attention in the Virtual Reality (VR) and Computer Graphics (CG) community. Taken regard as the core part of 3D garment CAD integral system, it can overcome effectively a serial of defects, such as poor intuition and low efficiency, in traditional 2D CAD from designing to postphase. Additionally, 3D garment simulation realizes dynamic or static effect of dressed 3D human body, lets designer and customer observe directly wearing effect in front of computer screen with arbitrary direction and visual angle, and modifies the style and size of garment in real-time interactive mode. Undoubtedly, all above functions have more wide application, such as custom-tailor, sale and virtual exhibition based on web. However, physically based garment simulation usually involves very large computational costs, how to perform high quality simulation on low-end hardware platform or in interactive environment (such as ordinary PC or video game) is a new big challenge.The dissertation mostly addressed the technology of garment simulation in virtual human animation, including virtual human body modelling, character animation, physically based cloth simulation, collision detection and response for deformable objects. Our main aim is to construct an integrated 3D garment simulation environment, and develop some highly efficient algorithms that focus on the real-time performance of system.(1) Taken into consideration the requirement for individual human body models in 3D garment simulation, a method for parameterized human body modeling was proposed. Feature parameters are determined according to anthropometrical approach and theory. Combined axial deformation technique in computer graphics, modeling system that is realized in this study provides very intuitive input interface. Additionally, this method also has the advantage of simple operation and quick modeling.(2) In order to support character animation for the dynamic show of 3D garment, the technique for skin mesh deformation driven by skeleton was well...