CN1629889A - 3D Plant Music Animation System - Google Patents

Abstract

A three-dimensional plant body music animation system, including a computer unit, an audio playback unit and a video display unit, the computer unit can analyze music files stored in the music library through the built-in software; the computer unit can also use the built-in software, Calculate and automatically generate continuous animation video, and output the video signal to the video display unit; the audio playback unit is used to play the audio signal; the video display unit is used to display audio data; the three-dimensional graphics library is used to store Models of various 3D plants; real-time animation sequence generation and real-time rendering module, used to automatically generate and render real-time dance movements; dance gesture library, used to store various dance gestures; automatic dance rule module, used to generate dance movement planning Data; dance action script module, used to edit and store dance action data.

Description

3D Plant Music Animation System

technical field

The invention relates to a computer multimedia system and a three-dimensional computer graphic animation system, in particular to a music animation system for a three-dimensional plant body.

Background technique

The modeling and realistic rendering of plants has always been one of the hotspots in the field of graphics research. People have done a lot of fruitful work, but the research on plant animation is rare, and more attention is paid to the growth animation of plants. Realistic plant motion simulation has high motion complexity and scene complexity. The description, control and realization of this kind of motion are quite difficult. Moreover, because plants have a high degree of freedom of movement, it is very difficult to solve the equation of motion, and real-time animation is even more difficult to achieve. Most of the existing virtual dance systems use virtual people as their animation characters, and most of them use motion capture technology to capture the motion information of people in the real world through motion capture devices (magnetism or photoelectric), and then use various A motion synthesis method that retargets motion to a virtual dancing character to generate realistic motion animation sequences. This method requires a relatively complex and expensive motion capture device, and needs to collect a large amount of motion data of real people, and it is difficult to synthesize new motions. The synthesized motions are often just simple repetitions of the captured real motions, which inevitably gives people The feeling of monotony.

Contents of the invention

The object of the present invention is to provide a three-dimensional plant music animation system.

In order to achieve the above object, a three-dimensional plant music animation system includes a computer unit, an audio playback unit and a video display unit;

The computer unit is capable of analyzing music files stored in the music library through built-in software;

The computer unit can also calculate and automatically generate continuous animation video through built-in software, and output the video signal to the video display unit;

The audio playback unit is used to play audio signals;

The video display unit is used to display audio data;

It is characterized in that the computer unit includes:

3D graphics library for storing models of various 3D plants;

Real-time animation sequence generation and real-time rendering module, used to automatically generate and render real-time dance movements;

Dance gesture library, used to store various dance gestures;

Automatic dance rule module, used to generate dance movement planning data;

The dance action script module is used to store dance action data.

The invention realistically simulates the motion of the plant body without the need of a motion capture device, and generates a three-dimensional dance motion animation sequence of the plant body in real time. The invention can also allow users to edit dance gestures and movements by themselves, so that dance animations that are harmonious and unified with music styles can be programmed and generated. Provide users with an intelligent entertainment system integrating music, dance, 3D computer graphics, 3D computer animation and other technologies. The method used in the invention has application prospects in the fields of multimedia film and television production, multimedia entertainment game development, multimedia advertisement production and the like.

Description of drawings

Fig. 1 is a composition block diagram of the three-dimensional plant music animation system of the present invention.

Detailed ways

Accompanying drawing 1 is a system structure block diagram of the present invention. The whole system is divided into three units: a computer unit 10 , an audio output unit 20 and a video display unit 30 . The computer unit includes a music library 101 composed of various music files, CD discs, discs, etc.; the computer unit has a built-in music signal processing module 102 for processing and identifying music signals, so as to control elements such as time, style, and dynamics of dance movements. The music playing module 103 is used to play music, and output the audio signal to the audio playing unit 20 ; Also built-in three-dimensional graphics storehouse 111 in the computer unit, the model of storing various three-dimensional plants is used for dance animation; Real-time animation sequence generation and real-time rendering module 112, will extract gesture data from dance gesture storehouse 113, from automatic dance rule 114 module Generate dance action planning data, or extract dance action data from the dance action script 115, automatically generate and render real-time dance animation. The computer unit also provides 3D modeling 121, dance posture editor 122, and dance movement choreography 123, three interfaces for exchange with users, so that the system can be defined by the user to generate plant models, dance postures and dance movements. The music output audio signal and the animation output video signal of the computer unit are respectively connected to the audio playback unit 20 and the video display unit 30 to play music and display animation.

Implementation example

Store music files directly in the data storage components of the computer unit, such as hard disk, read-only memory, erasable memory, or flash memory, etc., to form a music library; or it can be realized through CD devices or other external music playback devices Music playback. For example, we stored Tchaikovsky's "Swan Lake" as music for a dance performance. In this system, a graphics library including three-dimensional data of various plants is established. For example, we use the 3D modeling module to build a 3D lily model as the protagonist of the dance animation, which consists of a main stem, four leaves and a flower at the top. These organs can move during dance, and simulate the movements of the human trunk and limbs in various poses and with different expressions. In this system, a library of dance gestures corresponding to various plant models is established. For example, we divide the posture of the animation character lily into six parts: the flower, the main stem and four branches and leaves, and each part establishes several representative postures (for example, for the flower part, there can be: , high, yaw and twist, etc.). In this system, an action script file including dance actions of various plant dance action sequences is established. For example, we establish the target posture of each beat according to the natural rhythm of the music, and the system will automatically realize the transfer and conversion between postures according to the dynamic model based on physics, thereby generating various dance movements. Coupled with some overall dance control movements, such as moving, jumping, rotating, etc., a complete dance script file can be formed, and the dance animation characters can perform coherent and smooth dances according to the written dance script. The built-in software of this system establishes an audio signal processing unit for extracting and identifying music elements (such as beat, treble, bass, drum, etc.). For example, we can use the method of frequency spectrum analysis to extract and identify the pitch of the pitch. For the case where MIDI is used as the sound source, we can establish a MIDI analysis unit to extract information such as pitch, sound length, and beat contained in MIDI music signals, so as to more accurately control the dance of animated characters. Through the human-computer interaction software interface mode displayed on the computer screen, the user can select the way of arranging music for plant body animation, which can be arranging manually or automatically. For example, if we choose the method of manually arranging music, then we need to further select the dance script. We can write the dance script according to the method introduced in step 4, save it and select it as the current dance script. After the user clicks the start command, the system will play the selected music, and at the same time generate a dance animation corresponding to the music, and output the audio and video signals to the audio playback unit and the video display unit. The audio playback unit includes a power amplifier, a loudspeaker piece, and a sound box. Video display units include liquid crystal displays, plasma displays, rear projection or front projection displays. The display can be displayed on a single machine or combined with multiple machines.

Claims (7)

1. a three-dimensional plant body music animation system comprises computer unit, audio playing unit and video display unit, and described computer unit can pass through embedded software, the music file of analyzing stored in music libraries;

Described computer unit can also pass through embedded software, calculates and the continuous animated video of automatic generation, and vision signal is outputed to video display unit;

Described audio playing unit is used for playing audio signal;

Described video display unit is used to show voice data;

It is characterized in that described computer unit comprises:

3 d graphic library is used to store the model of various three-dimensional plants;

The real-time animation sequence generates and the real-time rendering module, is used for generating automatically and playing up real-time dance movement;

Dancing attitude storehouse is used to store various dancing attitudes;

Automatically the dancing rule module is used to produce the dance movement layout data;

The dance movement script module is used to store the dance movement data.

2. system according to claim 1 is characterized in that described computer unit also comprises;

The three-dimensional modeling interface generates plant model by user oneself definition;

Dancing attitude edition interface generates the dancing attitude by user oneself definition;

The dance movement choreography interface generates dance movement by user oneself definition.

3. system according to claim 1 is characterized in that described computer unit also comprises:

The music signal processing unit is used for handling the music signal of music libraries;

The music unit is used to play the music signal from the music signal processing unit.

4. system according to claim 1 is characterized in that described music libraries is made of external memory devices such as hard disc of computer, CD CD, discs.

5. system according to claim 1 is characterized in that described audio playing unit comprises power amplifier, loudspeaker, audio amplifier.

6. system according to claim 1 is characterized in that described video display unit comprises LCD, plasma scope, rear-projection or pre-projecting type display.

7. system according to claim 6 is characterized in that described display can show or multimachine combination demonstration by unit.