Nonlinear modification method for 3D character animation

Abstract

The invention discloses a nonlinear modification method for a 3D character animation. By using the nonlinear modification method, local acceleration / deceleration and other nonlinear rhythm changes can be performed on the basis of original character animation data, and even inverted sequencing of original actions can be achieved. According to time data of a keyframe sample and the relation between a control curve and the rhythm changes, character animation of which local rhythm is changeable can be obtained through the processes of normalization, mapping of the control curve and inverted normalization, and therefore the nonlinear modification method is easy to implement and reliable.

Description

technical field [0001] The invention relates to the technical field of three-dimensional animation, in particular to a non-linear modification method for three-dimensional character animation. Background technique [0002] Three-dimensional animation technology is a new technology that has emerged with the development of computer software and hardware technology in recent years. It can conveniently and quickly produce three-dimensional animation or film and television special effects shots that meet the needs of directors. [0003] The production principle of 3D animation is generally as follows: First, use 3D software (such as 3ds Max, Maya or Houdini) to build a virtual world in the computer; then, add scenes and 3D models such as 3D cartoon characters to the virtual 3D world ; Finally, set the animation curve of the model, the trajectory of the virtual camera and other animation parameters, and render the character animation. [0004] Because 3D animation technology has ...

AI Technical Summary

Problems solved by technology

However, the completion of an action is not the end. It is often necessary to adjust the rhythm of the character's action according to the storyline or the character's mood. In addition, in group animation, the action rhythm of the characters is also not consistent. Therefore, it is necessary to adjust the action to make it in There are rhythm changes such as acceleration or deceleration locally, but the existing software only provides linear scaling of the overall time of the animation curve, and does not support local nonlinear changes, so the animator can only adjust the time value keyframe by keyframe

Moreover, a character animation is often a coordinated action between different parts of the character, so it is necessary to ensure that the adjustments between different parts are consistent, and the workload is no less than re-production

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