Three-dimensional animations cartoon flame creation method

Abstract

The invention discloses a cartoon flame generation method of 3D animation; the method comprises the following steps: based on a hand-drawn cartoon flame sample, the contour line of the flame sample isextracted and drawn on a billboard, and the flame sample is deformed by the axial deformation technology to synthesize wind moving flame effect and flame propagation effect. The inside of the flame is drawn by colors with gradient change, and a shape is arranged at the foot segment of the flame to achieve the purpose that when watching the flame on the billboard from the top of the 3D space, theflame still brings people with certain stereoscopic impression. The cartoon flame generated by adopting the method can keep the quality of the hand-drawn cartoon flame, when the wind moving flame effect and the flame propagation effect are presented, a new flame animation sequence is avoided from redrawing, and the animation length is not limited. By adopting the method, cartoon moving line animation production efficiency can be greatly improved. As a system directly generates and saves animation sequence image, the method breaks away from the use of paper sheet which are required in hand-drawn cartoon flame and can save a great amount of paper sheets.

Description

technical field [0001] The invention relates to a method for generating cartoon animation with special effects, in particular to a method for generating cartoon flames in three-dimensional animation. Background technique [0002] In cartoon animation, effects such as running water, flame, and smoke play an important role in enhancing the atmosphere of animation and enhancing the realism of animation. Among them, flame effects are common objects in animation, such as torches, bonfires, and fires. At present, cartoon flame animation still relies on manual drawing. Animation artists can draw about 20 pictures (about 1 second long animation) a day. The length of a cartoon effect is generally 3 to 6 seconds, and manual drawing takes 4 to 5 days. The efficiency low. To express the wind blowing effect of cartoon flames, or the spreading effect of cartoon flames, animators need to redraw new cartoon flame sequences, which is labor-intensive and time-consuming, and wastes paper. ...

AI Technical Summary

Problems solved by technology

Because the cartoon flame contains random motion components, it destroys the corresponding relationship between the pictures, causing the above method to completely fail

In addition, cartoon flames are hand-drawn two-dimensional images with an artistic style. They are difficult to represent with a particle system, nor can they be modeled using physical knowledge such as fluid theory.

In the past two decades, people have proposed many animation methods for dealing with flames, but most of them are dedicated to generating realistic animations, and no one has proposed an effective solution for automatically generating cartoon-style flame animations.

Images