Virtual digital sculpture method based on natural gesture

Abstract

The invention discloses a virtual digital sculpture method based on a natural gesture. The virtual digital sculpture method comprises the following steps of obtaining a gesture position through Leap Motion; and performing virtual sculpture modeling. According to the digital sculpture method, two major models, including an established to-be-sculptured model and a virtual hand model which is established based on a joint coordinate obtained from Leap Motion, are adopted in a task of the virtual sculpture; when a human hand moves under Leap Motion to further control a virtual hand and a fixed to-be-sculptured model to be subjected to slight collision, whether a crossed point exists or not in the collision position is detected through a triangle-triangle crossing algorithm in a three-dimensional space; and then real-time correction on a crossed point coordinate is performed through a virtual sculpture deformation algorithm in an intersecting line position of the crossed point according to calculation of the collision depth, so as to achieve a sculpture 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

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