CN102867333A

CN102867333A - DI-GUY-based virtual character behavior visualization method

Info

Publication number: CN102867333A
Application number: CN2012102492251A
Authority: CN
Inventors: 高颖; 郭淑霞; 张金汇; 刘宁; 陈卫军; 姜涛; 韩前进; 宋阳
Original assignee: Northwestern Polytechnical University
Current assignee: Northwestern Polytechnical University
Priority date: 2012-07-18
Filing date: 2012-07-18
Publication date: 2013-01-09

Abstract

The invention relates to a DI-GUY-based virtual character behavior visualization method. The method is characterized by comprising the steps: selecting a specific character model by utilizing a character library provided by DI-GUY; selecting M basic behaviors for the character model from a DI-GUY behavior library, sequencing in the time list of a timeline according to time sequence of behaviors; according to time sequence of basic behaviors, connecting each two basic behaviors by adopting a transition line; editing the connected basic behaviors in an editor of the DI-GUY to generate needed character behaviors; and adding edited character behaviors into a three-dimensional visualized scene, thus realizing the behavior visualization of virtual characters. The visualization method not only can overcome incomplete behavior sequence, but also can complement relatively deficient character models of the system, successfully realize association with the existing behaviors, thus being continuous in executing the sequence behaviors.

Description

A kind of virtual portrait action method for visualizing based on DI-GUY

Technical field

The present invention relates to a kind of virtual portrait action method for visualizing based on DI-GUY, the particular virtual personage that utilized the DI-GUY software creation, and be the specific new element of its person model editor, then realized the combination of virtual portrait and three-dimensional scenic by programming.

Background technology

In DI-GUY, do not have complete action sequence, the personage storehouse that utilizes DI-GUY to provide, choose height, the suitable model of build, by revising the model texture, need to generate for the visual human of appointment specific new element so editor has created the person model of particular requirement, create more suitable virtual portrait.

Summary of the invention

The technical matters that solves

For fear of the deficiencies in the prior art part, the present invention proposes a kind of virtual portrait action method for visualizing based on DI-GUY, and then the particular virtual personage that utilized the DI-GUY software creation has realized the combination of virtual portrait and three-dimensional scenic by programming.

Technical scheme

A kind of virtual portrait action method for visualizing based on DI-GUY is characterized in that step is as follows:

Step 1: the personage storehouse that utilizes DI-GUY to provide, choose specific person model;

Step 2: from the DI-GUY maneuver library, select elemental motion M for person model, its sequencing by action is arranged in the time list of timeline;

Step 3: according to the sequencing of elemental motion, between per two elemental motions, adopt transition line to connect;

Be Tn when the time interval of two elemental motions of index request〉0.1s, adopt the transition line without sawtooth to connect two elemental motions;

Be Tn＜0.01s when the time interval of two elemental motions of index request, adopt and be with serrate transition line to connect two elemental motions;

Step 4: in the editing machine of DI-GUY, the elemental motion that connects is edited, produce the figure action that needs;

Step 5: the figure action that editor is finished adds in the three-dimensional visualization scene, finishes virtual portrait and moves visual realization.

The time interval of two elemental motions of described index request is Tn＜0.01s, and the sawtooth on the transition line is no less than 5.

Beneficial effect

A kind of virtual portrait action method for visualizing based on DI-GUY that the present invention proposes according to simulation requirements, needs the skin of person model on from the bone system on the macroscopic view to microcosmic, hair, facial expression, dressing etc. partly to carry out modeling.Because organization of human body is complicated, therefore human body is divided into several parts, according to the characteristics of motion it is carried out modeling.In order to create suitable Chinese Virtual soldier, height, the suitable model of build are chosen in the personage storehouse that utilizes DI-GUY to provide, and by revising the model texture, then are mapped on the visual human, thereby have created specific person model.Continuity when having realized carrying out the sequence action, and successfully virtual portrait is added in the three-dimensional visualization scene.

The present invention can not only overcome incomplete action sequence, and the relatively deficient person model of energy replenishment system, success realizes with existing action related, when carrying out the sequence action, link up like this, thereby for increasing the sense of reality that the visual human will strengthen the virtual emulation program greatly in the simulated program, in figure simulation, vividness that can enhanced scene, strengthen feeling of immersion, improve the dynamic role of its training.The cognition that the user produces the sense of reality to the visual human comes from the emulation of the geometric shape outward appearance of system on human, emulation to people's physiological structure and biology, physical characteristics, to human motion, behavior, the especially emulation of action and to the emulation of the senior intelligence such as people's thinking, emotion etc.

Description of drawings

Fig. 1: the model framework chart of the inventive method;

Fig. 2: the person model synoptic diagram of the inventive method;

Fig. 3: generate the key frame constitutional diagram;

Fig. 4: the data file figure of derivation;

Fig. 5: the integral body roaming of personage in Digital Oil Depot shows figure.

Embodiment

Now in conjunction with the embodiments, the invention will be further described for accompanying drawing:

Referring to description of drawings, shown in embodiment wherein, describe the workflow of comprehensive generation figure simulation method of the present invention in detail, as shown in Figure 1.

1) set up person model, height, the suitable model of build in Character Selection Dialog, are chosen in the personage storehouse that we utilize DI-GUY to provide, and then by revising the model texture, editor has created the person model of particular requirement.Set up human skeleton-appearance model, in the process of modeling, we mainly utilize 3D human action modeling software Poser7.0 exploitation, generate our required person model, as shown in Figure 2.

2) enter the main interface of DI-Guy Motion Editor, in windows, choose 3D, timeline, camera, project etc., eject respective window, in File, select Import therefrom to select corresponding completed action for person model, and drag it among the timeline, being that it adds the key frame state, this process can repetitive operation, and its sequencing by the time is arranged in the time list of timeline, at per two excessive connecting lines that independently add respective smoothed between the action, be Tn when the time interval of two elemental motions of index request〉0.1s, adopt the transition line without sawtooth to connect two elemental motions; Be Tn＜0.01s when the time interval of two elemental motions of index request, adopt and be with serrate transition line to connect two elemental motions; Sawtooth on the transition line is no less than 5;

Make its nature more true to nature.In 3D view window, demonstrate, then in 3D view window and TimeLine, further revise required action, make further realization and improve as shown in Figure 3.

3) after the establishment of having finished person model and corresponding actions, we need the derived data file, data file requires to catch data file for the standard operation of BVH form, and the real-time action that can be directly used in visual human's action under the DI-GUY environment drives, as shown in Figure 4.

4) after modification is finished required virtual portrait model and has been edited the action of virtual portrait, virtual portrait need to be added in the three-dimensional visualization scene, in DI-Guy Scenario Elements panel, load the object module that adds the personage, in Character Elements panel, choose the personage, use the People Blitzer among the Input Mode that the personage is added on the rational initial position, use Path Insert to add paths a little, if the position of path point is improper, under Path Edit pattern, can revise, if known the coordinate of path point, can edit by the Waypoint among the Character Elements, use Action Insert insert action node in somewhere on the path, also can edit among the Action in Character Elements, select figure action.Figure action is divided into two classes according to average velocity: time action and athletic performance.If speed 〉=0.1m/s, be athletic performance, otherwise be the time action.Athletic performance can be advanced into next reference mark to personnel by reference mark, a path.At reference mark place, carry out a series of time action, such as aiming etc.The time action executing is complete, then starts the athletic performance at reference mark, as walk, run, crawl etc., until next reference mark, its effect is as shown in Figure 5.

Claims

1. one kind based on the virtual portrait of DI-GUY action method for visualizing, it is characterized in that step is as follows:

2. described virtual portrait action method for visualizing based on DI-GUY according to claim 1, it is characterized in that: the time interval of two elemental motions of described index request is Tn＜0.01s, and the sawtooth on the transition line is no less than 5.