hi I have problem about background . I create indexedtiranglearray
IndexedTriangleArray mapGeom1 = new IndexedTriangleArray(5,
GeometryArray.COORDINATES | GeometryArray.COLOR_3,12);
mapGeom1.setCoordinate(0, new Point3f( 0.0f, -0.4f, 0.0f ));
mapGeom1.setCoordinate(1, new Point3f( -12.5f, -0.4f, -250.0f ));
mapGeom1.setCoordinate(2, new Point3f( -12.5f, -0.4f, 250.0f ));
mapGeom1.setCoordinate(3, new Point3f( 12.5f, -0.4f, 250.0f ));
mapGeom1.setCoordinate(4, new Point3f( 12.5f, -0.4f, -250.0f ));
mapGeom1.setCoordinateIndex( 0, 0);
mapGeom1.setCoordinateIndex( 1, 1);
mapGeom1.setCoordinateIndex( 2, 2);
mapGeom1.setCoordinateIndex( 3, 0);
mapGeom1.setCoordinateIndex( 4, 2);
mapGeom1.setCoordinateIndex( 5, 3);
mapGeom1.setCoordinateIndex( 6, 0);
mapGeom1.setCoordinateIndex( 7, 3);
mapGeom1.setCoordinateIndex( 8, 4);
mapGeom1.setCoordinateIndex( 9, 0);
mapGeom1.setCoordinateIndex(10, 4);
mapGeom1.setCoordinateIndex(11, 1);
it is square area. i want creat background which have bounding box and same
size as indextrianglearray.
i try to program
//Set Appearance for Background
BoundingBox bounds = new BoundingBox();
Appearance backgroundApp = new Appearance();
//create colored material
Color3f aColor = new Color3f(0.8f, 0.8f, 0.8f);
Material m = new Material(aColor, aColor, aColor, aColor, 80.0f);
//enable lighting and assign material
m.setLightingEnable(true);
backgroundApp.setMaterial(m);
//render the box as a wire frame
PolygonAttributes polyAttributes = new PolygonAttributes();
polyAttributes.setPolygonMode( PolygonAttributes.POLYGON_FILL);
polyAttributes.setCullFace(PolygonAttributes.CULL_NONE);
backgroundApp.setPolygonAttributes(polyAttributes);
//create the box and assign the appearance
Box box = new Box( 1.0f, 1.0f, 1.0f, Box.GENERATE_NORMALS |
Box.GENERATE_NORMALS_INWARD|
Box.GENERATE_TEXTURE_COORDS,backgroundApp);
Background bg = new Background();
bg.setApplicationBounds(bounds);
BranchGroup backGeoBranch = new BranchGroup();
backGeoBranch.addChild(box);
bg.setGeometry(backGeoBranch);
bgMap.addChild(bg);
TextureLoader tex = new TextureLoader("bg.jpg",new String("RGB"),
this );
if (tex != null)
backgroundApp.setTexture(tex.getTexture());
TextureAttributes texAttr = new TextureAttributes();
texAttr.setTextureMode(TextureAttributes.MODULATE);
backgroundApp.setTextureAttributes(texAttr);
but it 's not cover indexedtrianglearray. Please help me. Thank you
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