Virtual Digital Sculpture Method Based on Natural Gesture

Abstract

A virtual digital sculpting method based on natural hand gestures, comprising the following steps: hand gesture position acquisition, the hand gesture position being acquired by means of leap motion; and virtual sculpture modelling. When implementing virtual sculpting tasks, there are two main models, one being a constructed model to be sculpted, and one being a virtual hand model constructed of joint coordinates acquired by means of leap motion; when the human hand moves under leap motion, controlling the virtual hand to make a slight impact on the fixed model to be sculpted, detecting whether there is an intersection point at the impact site by means of a three dimensional space triangle and triangle intersection algorithm, and the intersecting line position and, on the basis of a calculation of the impact depth, using a virtual sculpting deformation algorithm to perform real-time modification of the intersection point position coordinates, thereby achieving a sculpting deformation effect.

Description

technical field [0001] The invention belongs to the field of natural human-computer interaction, in particular to a virtual digital sculpture method based on natural gestures. Background technique [0002] With the continuous application of advanced digital instruments and equipment, computer-aided 3D modeling technology has developed to 3D modeling including 3D scanners, image-based modeling and rendering (IBMR) and other methods, Moreover, the functions of the computer-aided design system are becoming more and more powerful, but the threshold for its use is also getting higher and higher, and the operation is becoming more and more complicated. author's design ideas. Traditional 3D modeling is mainly accomplished through 3D modeling software such as 3DMax, Maya, and Rhinoceros. Their power cannot be denied. Beginners must spend a certain amount of energy to master how to model. The threshold is high, and the operator It is not easy to express one's own ideas clearly, and...

AI Technical Summary

Problems solved by technology

[0002] With the continuous application of advanced digital instruments and equipment, computer-aided 3D modeling technology has developed to 3D modeling including 3D scanners, image-based modeling and rendering (IBMR) and other methods, Moreover, the functions of the computer-aided design system are becoming more and more powerful, but the threshold for its use is also getting higher and higher, and the operation is becoming more and more complicated. author's design ideas

Traditional 3D modeling is mainly accomplished through 3D modeling software such as 3DMax, Maya, and Rhinoceros. Their power cannot be denied. Beginners must spend a certain amount of energy to master how to model. The threshold is high, and the operator It is not easy to express one's own ideas clearly, and it often takes several hours to complete a more beautiful model after getting started. There are also some foreign countries that use VR and AR for 3D modeling, but the built model Often too simplistic and not very practical

3D printers are widely used in daily life, but it is difficult to popularize them. There are two key reasons: first, it is difficult to get started with 3D modeling software, and people with non-related majors need to spend a lot of effort to learn how to use 3D printers. Use modeling software; second, 3D modeling software is difficult to express the shape of objects in people's minds, especially in some details, there is often a big difference between what people think in mind and what the software draws

Just like a sculptor holding a carving knife in his hand can easily carve out the shape of an object, but according to the situation at home and abroad, the domestic 3D modeling software is powerful but it takes people a lot of time to learn and be proficient in the software; Lightweight design research has been quickly realized but the models that can be built are relatively simple

Images