Research On Joints Biomechanical Restriction In Person Modeling

With a comprehensive computer technology into the 3D era, the virtual human research has attracted the attention of many scholars. The subject in the film and television animation, virtual reality, industrial design, so as to have broad application prospects. Human body model to the 3D wire-frame model by the hierarchical model of evolution, a combination of three-dimensional modeling method configuration, motion detection, mathematical analysis, as well as bio-mechanics, anatomy, and many other knowledge and become experts in all competing for the national study of computer graphics hot. However, visually acceptable for the three-dimensional animated model of the human body yet.In this paper, summing up the various ways the establishment of the human body model, and analyzed the advantages and disadvantages of hierarchical model focuses on skeletal layer, in accordance with the principles of human anatomy, a key point will be bound by the mathematical way, and then bound by these physiological conditions added to the bone joints in the various layers to improve the hierarchical model of the human body modeling. Improved based on the hierarchical model, this article details the process of joint transformation and solution methods, focus on the current most commonly used method to the dynamics, a physiological condition based on the research methods to the dynamics through position to solve the end of each iteration of the key points to include the physical constraints of testing, so that more realistic human movement.The results of the study will be applied to the open-source software in the blender, as the bones of the joint point of the model by adding physical constraints, the adoption and the original animation can be seen comparing the process of turning the body a more natural and realistic, the process in motion physiological constraints added to the IK algorithm, crawl through and the original animated objects can be seen crawling compared the action more in line with the principle of human body kinematics.