CN106560863A

CN106560863A - Virtual development method based on 3D planar technique

Info

Publication number: CN106560863A
Application number: CN201510637402.7A
Authority: CN
Inventors: 陶阳
Original assignee: ZHENJIANG DINGTUO TECHNOLOGY INFORMATION Co Ltd
Current assignee: ZHENJIANG DINGTUO TECHNOLOGY INFORMATION Co Ltd
Priority date: 2015-10-06
Filing date: 2015-10-06
Publication date: 2017-04-12

Abstract

The invention provides a virtual development method based on 3D planar technique. The method mainly refers to a VVE method, that is, a 3D experiment scene is constructed and a 3D animation is made with 3DMAX; data treatment and interaction control are conducted by using Virtool, and thus the virtual development method based on the 3D planar technique has the advantages of being real, interactive, simple and easy to achieve.

Description

A kind of virtual development method based on 3D planar techniques

Technical field

A kind of virtual development method based on 3D planar techniques is directed primarily to the virtual aspect fields of computer 3D.

Background technology

Experiment is an important teaching link in middle school and college teaching, and domestic many middle schools and colleges and universities' laboratory open up universal deficiency, and quality of instruction is have impact on to a certain extent.Virtual experimental compensate for the defect of this respect.Normal experiment is compared, virtual experimental has the special feature that is：Compensate for the deficiency of teaching fund；Avoid the danger that true operation is brought；Thoroughly break the restriction of room and time.With the development of virtual reality technology, application of the virtual experimental in experimental teaching is increasingly taken seriously.They have a feature, are namely based on VRML（Virtual Reality ModelingLanguage）.But further research is need based on the Visual Tool for Virtual Reality of VRML：Text based virtual scene Core Generator based on VRML is present can not provide visible environment, and the basic set body that user must have the shortcomings that certain background knowledge and scene construction personnel and must provide from VRML build complex scene；EAI is passed through based on Java technologies based on VRML（External Authoring Interface）Interact control, it is desirable to which user must be familiar with the programming of Java language and the interaction of VRML animations.As a result, it is big for actual development difficulty, complicated, it is difficult to realize.Herein for above-mentioned deficiency, it is proposed that a kind of Simulation Experiments Development method --- VVE based on 3D and Virtools technologies, i.e., built 3D experiment scenes, made 3D animations with 3DMAX；Data processing, interactive controlling are carried out with Virtools.

Simulation Experiments Development platform, Simulation Experiments Development platform module, modeling software, PC work stations, virtual experimental are mainly included based on Virtools Simulation Experiments Developments structure chart（VR Content）And browser（Virtools Web Player）Deng.Simulation Experiments Development platform is Virtools Dev；Simulation Experiments Development platform module includes VirtoolsPhysics Pack, Virtools AI Pack, Virtools VR Pack, Virtools XboxKit, Virtools OpenCAD, Virtools Server；Input equipment refers mainly to control lever, steering wheel, 3D slide-mouse, 3D gloves, location tracking device；Input equipment refers to anaglyph spectacles, three-dimensional screen, helmet-mounted display, analog machine；Exhibition system includes three-dimensional theater and display systems.

The content of the invention

Retrieved without the application materials found with regard to this system aspects by national patent.

A kind of virtual development method based on 3D planar techniques can be divided into 3 steps, be respectively the structure of model, the control of model and the issue of virtual experimental.

First, the structure of model；

The structure of Virtual Experiment Environment is the structure of model first, due to the function that Virtools itself is not modeled, so general modeling method is realized using modeling software, such as 3DMAX or Maya（3DMAX is employed herein）.Make of 3DMAX and file is preserved with NMO forms after threedimensional model or animation（Deriving NMO formatted files needs to install corresponding MaxExporter plug-in units）, generated NMO files are then imported in Virtools.Import to the 3D of the three-dimensional world editing area of Virtools（Or 2D）Element can be observed, controlled, it is also possible to the more BBs of SDK plug-in unit editors are installed, realize the needs of virtual experimental.

2nd, the control of model;

It is three-dimensional in Virtools（Or two dimension）The control of model is realized by the built-in behavioral modules of Virtools.These behavioral modules have more than 500, can be to three-dimensional（Or two dimension）Model carries out various basic operations such as size variation, translation, rotation, scaling, color change, light change, portion three-dimensional picture pasting etc., and complex operations are such as projected, burn, walk, run, retreated.The control to the model in three-dimensional world editing area is realized, a kind of method is exactly to directly invoke the built-in BBs in behavioral module storehouse, one kind is to write BBs automatically by manual using VC++.The former is simple and convenient, and the latter is more flexible.Click on Data Resource（Data repository）, select Animations（Behavior act）Behavior in class, clicks on desired action behavior and is dragged to 3D Layout with mouse（Three-dimensional world editing area）In role with, and in Schematic（Script process figure）The corresponding script of behavioral module editor's role in middle utilization behavior interactive module storehouse, thus forms 3D interactive animations.

Usually, the needs of design are disclosure satisfy that with the 3D animations of the behavioral module design in behavior act storehouse.But oneself must write VC++ codes to make BBs sometimes, wherein the method for mainly using some Win32 and API programmings.

3rd, the issue of virtual experimental；

Virtual experimental is made up of two parts：Virtual environment and interactive animation.The control of wherein model completes the interactive animation among virtual experimental, and virtual environment is then that, by the threedimensional model for building, such as experimental bench, laboratory apparatus, experimental drug, wall, floor collectively forms virtual laboratory.Virtual experimental is made after finishing, and can be preserved using two methods, and one kind is that the file that such case is preserved only is loaded into Virtools and can just carry out the virtual experimental of unit directly by whole virtual experimental with the preservation of CMO file formats；One kind is with the preservation of VMO file formats by whole virtual experimental, it is simultaneously correspondingly a with the preservation of HTML file formats, such case needs to install player plug-in VirtoolsWeb Player, the virtual experimental of unit can be carried out, can also issue online, as long as client is mounted with that player plug-in can be carried out virtual experimental.

Shown below is the magnesium rod that the BBs of part Virtools is programmed to burn the example of virtual experimental.

1） The primary attribute for realizing user is arranged and the setting for doing experiment relevant action.

1. the Script of user plus in Enhanced Character Keep On Floor, Prevent Collision to Schematic, and edit |input paramete；

2. add KeyboardController, Unlimited Controller to the Script of user, and edit |input paramete；

3. add Key Event, the Script of Send Message to user, and edit |input paramete.

2） Realize that user opens alcohol lamp hat with hand, and be placed on the function on experimental bench.

1. plus Wait Message, Send Message are to the Script of the crown top of burner, and |input paramete is edited；

2. Set Position, Set Orientation, Keep At are added ConstantDistance and edits |input paramete to the Script of the crown top of burner；

3. AddParameter Operation addition Get Distance are clicked on, adds Test, DeactivateScript, Hide to the Script of the crown top of burner, and edit |input paramete.

（3）Realize that user lights the function of alcolhol burner by lighter.

1. add Wait Message, the Script of Send Message to lighter, and edit |input paramete；

2. Set Position, Set Orientation, Keep At Constant are added Distance and edits |input paramete to the Script of lighter；

3. plus Get Distance, Test, Deactivate Script is to the Script of lighter, and |input paramete is edited；

4. plus Wait Message, Send Message are to alcolhol burner flame Script, and |input paramete is edited；

5. add Point Particle System, Test, Get Distance, Deactivate Script to alcolhol burner flame Script, and edit |input paramete.

（4）Realize function of the user with hand-held crucible clamp magnesium rod.

1. add Wait Message, the Script of Send Message to crucible tongs, and edit |input paramete；

2. add Set Parent, Set Orientation, the Script of Keep At Constant Distance to crucible tongs, and edit |input paramete；

3. plus Get Distance, Test, Timer, Deactivate Script is to the Script of crucible tongs, and |input paramete is edited；

4. add Wait Message, the Script of Send Message to magnesium rod, and edit |input paramete；

5. add Set Position, Set Orientation, the Script of Keep At ConstantDistance to magnesium rod, and edit |input paramete；6. add Get Distance, Test, Unlimited Controller to the Script of magnesium rod, and edit |input paramete.

（5）Realize the function that magnesium rod burns.

1. add Wait Message, the Script of Send Message to magnesium rod flame, and edit |input paramete；

2. Set Position, Set Orientation, Keep At Constant are added Distance, Point Particle System to magnesium rod flame Script, and editing parameter.

See that user does the experiment of magnesium rod burning in virtual laboratory：After the T keys on lower keyboard are pressed, virtual role-user will be opened with its right handgrip alcohol lamp hat and is placed on experimental bench；After pressing L keys, user will go to light alcolhol burner by lighter；After G keys are pressed, user is carried out lighting magnesium rod by crucible clamp magnesium rod, and crucible tongs are put back to experimental bench after magnesium rod all burnt；After pressing C keys, user will extinguish alcolhol burner.User's row can be controlled by numerical key 2,8,4 and 6 in addition

User's walking can be controlled, retreated, turn left and is turned right by numerical key 2,8,4 and 6 in addition, realize the purpose that roaming virtual is tested.

Claims

1. a kind of virtual development method based on 3D planar techniques its cross program and be divided into the structure of model, the control of model, the issue of virtual experimental.

2. then the structure of model then makes and preserve file with NMO forms after threedimensional model or animation process according to claim 1 of 3DMAX（Deriving NMO formatted files needs to install corresponding MaxExporter plug-in units）.

3. generated NMO files are imported in Virtools；Import to Virtools Three-dimensional world editing area 3D（Or 2D）Element can be observed, controlled, it is also possible to the more BBs of SDK plug-in unit editors are installed, realize the needs of virtual experimental.

4. the control to the model in three-dimensional world editing area is then realized in the control of model according to claim 1, and a kind of method is exactly to directly invoke the built-in BBs in behavioral module storehouse, and one kind is to write BBs automatically by manual using VC++.

5. the issue of virtual experimental according to claim 1 is then：Virtual environment and interactive animation.

6. the interactive animation among virtual experimental is completed according to the control of claim 4 wherein model, and virtual environment is then by the threedimensional model for building.