m2a3 bradley fighting vehicle model ltc rene’ burgess final project, mv4204 24 mar 03 briefing...
TRANSCRIPT
M2A3 Bradley M2A3 Bradley Fighting Vehicle Fighting Vehicle
ModelModel
LTC Rene’ BurgessLTC Rene’ BurgessFinal Project, MV4204Final Project, MV4204
24 MAR 0324 MAR 03
Briefing & Models available online at Briefing & Models available online at http://fp2k.redshift.com/rayburge3/x3d.htmhttp://fp2k.redshift.com/rayburge3/x3d.htm
Model ProductionModel Production Base M2A3 ModelBase M2A3 Model ImprovementsImprovements
Drive SystemDrive System TrackTrack Road WheelsRoad Wheels Drive SprocketsDrive Sprockets
ArticulationArticulation TurretTurret GunGun TOWTOW Back RampBack Ramp
Appearance ItemsAppearance Items Bolts Bolts HandlesHandles Crew DoorCrew Door TextText
Issues/Lessons LearnedIssues/Lessons Learned
Base ModelBase Model
Vertices for most of the Model extracted Vertices for most of the Model extracted from standard Army M2A3 model in .hps from standard Army M2A3 model in .hps format (…which was extracted from a .flt format (…which was extracted from a .flt format model)format model)
This gave the physical outline of the This gave the physical outline of the outside of the vehicle….and a bitmap outside of the vehicle….and a bitmap texture of a BFV to overlay on the outline.texture of a BFV to overlay on the outline.
Rather than overlay the picture, instead Rather than overlay the picture, instead built a model based on color and physical built a model based on color and physical geometries for better extensibility.geometries for better extensibility.
Drive System Drive System ImprovementsImprovements
TracksTracks Both double/single Both double/single
track sections, then track sections, then rotated/ repeated to rotated/ repeated to complete trackcomplete track
Road WheelsRoad Wheels Built based on photo’s Built based on photo’s
using simple geometries using simple geometries and extrusionsand extrusions
Drive System Improvements Drive System Improvements (Cont.)(Cont.)
Drive SprocketsDrive Sprockets This was hard….tried a This was hard….tried a
couple different methods couple different methods before deciding to use before deciding to use repeating, extended/ repeating, extended/ translated/ rotated translated/ rotated spheres to create drive spheres to create drive sprocket…sprocket…
ArticulationArticulation
Turret (Around)Turret (Around) Gun (Up and Gun (Up and
Down)Down) TOW (Up & Down)TOW (Up & Down)
Articulation (Cont)Articulation (Cont)
Back RampBack Ramp
(Up and Down)(Up and Down) Easier to use two Easier to use two
TouchSensors than to TouchSensors than to do a JavaScript boolean do a JavaScript boolean (…like double click…)(…like double click…)
Lessons LearnedLessons Learned
Texture Mapping Texture Mapping CylinderSensorCylinderSensor JavaScript BooleansJavaScript Booleans ClickSensorClickSensor Model Conversion HiccupsModel Conversion Hiccups Polygons & IndexedFaceSetsPolygons & IndexedFaceSets Need for Visual Modeling/Edit ToolNeed for Visual Modeling/Edit Tool Right Hand, Right Hand, Right Hand….Right Hand, Right Hand, Right Hand…. Internet Explorer v. Netscape during Internet Explorer v. Netscape during
InterpolationInterpolation
ConclusionConclusion
Adequate M2A3 Bradley Fighting Adequate M2A3 Bradley Fighting Vehicle completed / prepared for Vehicle completed / prepared for addition to SAVAGE Libraryaddition to SAVAGE Library
Process of building this model Process of building this model reinforced lessons of X3D designreinforced lessons of X3D design
Posting models on web good way to Posting models on web good way to check functionality/ extensibility on check functionality/ extensibility on other PC’sother PC’s