Examples with VertexBuffer com.jme3.scene.VertexBuffer used on opensource projects

Example 61 with VertexBuffer

use of com.jme3.scene.VertexBuffer in project chordatlas by twak.

the class LineGen3d method calculate.

@Override
public void calculate() {
    for (Spatial s : gNode.getChildren()) s.removeFromParent();
    {
        Geometry geom;
        Mesh m = new Mesh();
        m.setMode(Mesh.Mode.Lines);
        List<Float> coords = new ArrayList();
        List<Integer> inds = new ArrayList();
        for (Line3d l : getLines()) {
            inds.add(inds.size());
            inds.add(inds.size());
            coords.add((float) l.start.x);
            coords.add((float) l.start.y);
            coords.add((float) l.start.z);
            coords.add((float) l.end.x);
            coords.add((float) l.end.y);
            coords.add((float) l.end.z);
        }
        m.setBuffer(VertexBuffer.Type.Position, 3, Arrayz.toFloatArray(coords));
        m.setBuffer(VertexBuffer.Type.Index, 2, Arrayz.toIntArray(inds));
        geom = new Geometry(filename, m);
        geom.setCullHint(CullHint.Never);
        Material lineMaterial = new Material(tweed.getAssetManager(), "Common/MatDefs/Misc/Unshaded.j3md");
        lineMaterial.setColor("Color", new ColorRGBA(color.getRed() / 255f, color.getGreen() / 255f, color.getBlue() / 255f, 1f));
        geom.setMaterial(lineMaterial);
        geom.setLocalTranslation(0, 0, 0);
        gNode.attachChild(geom);
    }
    // int c = 0;
    VertexBuffer emptyVB = new VertexBuffer(Type.Index);
    emptyVB.setupData(Usage.Static, 3, Format.UnsignedShort, BufferUtils.createShortBuffer(0));
    {
        Geometry geom;
        Random randy = new Random();
        for (Map.Entry<Loop<Point3d>, Integer> e : getFaces().entrySet()) {
            Loop<Point3d> p = e.getKey();
            final int callbackI = e.getValue();
            Mesh m = Jme3z.fromLoop(p);
            // m.setMode( Mesh.Mode.Triangles );
            // 
            // List<Integer> inds = new ArrayList<>();
            // List<Float> pos = new ArrayList<>();
            // List<Float> norms = new ArrayList<>();
            // 
            // Loopz.triangulate( p, true, inds, pos, norms );
            // 
            // m.set setVe( Type.Index, Arrayz.toIntArray(inds));
            geom = new Geometry(filename, m);
            geom.setCullHint(CullHint.Never);
            // ColorRGBA col = Jme3z.toJme( Rainbow.getColour( c++ ) );
            ColorRGBA col = new ColorRGBA(color.getRed() * randy.nextFloat() / 500f + 0.1f, color.getGreen() * randy.nextFloat() / 500f + 0.1f, color.getBlue() * randy.nextFloat() / 500f + 0.1f, 1f);
            Material mat = new Material(tweed.getAssetManager(), "Common/MatDefs/Light/Lighting.j3md");
            mat.setColor("Diffuse", col);
            mat.setColor("Ambient", col);
            mat.setBoolean("UseMaterialColors", true);
            geom.setUserData(ClickMe.class.getSimpleName(), new Object[] { new ClickMe() {

                @Override
                public void clicked(Object data) {
                    polyClicked(callbackI);
                }
            } });
            geom.setUserData(Gen.class.getSimpleName(), new Object[] { this });
            geom.setMaterial(mat);
            geom.setLocalTranslation(0, 0, 0);
            if (TweedSettings.settings.LOD) {
                LodGenerator lod = new LodGenerator(geom);
                lod.bakeLods(LodGenerator.TriangleReductionMethod.COLLAPSE_COST, 10, 100);
                GISLodControl lc = new GISLodControl();
                lc.setTrisPerPixel(0.000001f);
                geom.addControl(lc);
            }
            gNode.attachChild(geom);
        }
    }
    gNode.updateModelBound();
    super.calculate();
}

Example 62 with VertexBuffer

use of com.jme3.scene.VertexBuffer in project chordatlas by twak.

the class SkelFootprint method getColor.

public static ColorRGBA getColor(Geometry geom, Vector3f pt, int index, Tweed tweed) {
    MatParam param = geom.getMaterial().getParam("DiffuseMap");
    ImageRaster ir = ImageRaster.create(tweed.getAssetManager().loadTexture(((Texture2D) param.getValue()).getName()).getImage());
    Mesh mesh = geom.getMesh();
    // geom.getMaterial().getMaterialDef().
    VertexBuffer pb = mesh.getBuffer(Type.Position);
    VertexBuffer tb = mesh.getBuffer(Type.TexCoord);
    IndexBuffer ib = mesh.getIndicesAsList();
    Vector2f uva = new Vector2f(), uvb = new Vector2f(), uvc = new Vector2f();
    Vector3f la = new Vector3f(), lb = new Vector3f(), lc = new Vector3f();
    if (pb != null && pb.getFormat() == Format.Float && pb.getNumComponents() == 3) {
        FloatBuffer fpb = (FloatBuffer) pb.getData();
        FloatBuffer ftb = (FloatBuffer) tb.getData();
        // aquire triangle's vertex indices
        int vertIndex = index * 3;
        int va = ib.get(vertIndex);
        int vb = ib.get(vertIndex + 1);
        int vc = ib.get(vertIndex + 2);
        BufferUtils.populateFromBuffer(la, fpb, va);
        BufferUtils.populateFromBuffer(lb, fpb, vb);
        BufferUtils.populateFromBuffer(lc, fpb, vc);
        BufferUtils.populateFromBuffer(uva, ftb, va);
        BufferUtils.populateFromBuffer(uvb, ftb, vb);
        BufferUtils.populateFromBuffer(uvc, ftb, vc);
        // PaintThing.debug.put(1, new Line ( la.x, la.z, lb.x, lb.z) );
        // PaintThing.debug.put(2, new Line ( lb.x, lb.z, lc.x, lc.z) );
        // PaintThing.debug.put(3, new Line ( lc.x, lc.z, la.x, la.z) );
        float[] bary = barycentric(pt, la, lb, lc);
        int x = (int) ((uva.x * bary[0] + uvb.x * bary[1] + uvc.x * bary[2]) * ir.getWidth()), y = (int) ((uva.y * bary[0] + uvb.y * bary[1] + uvc.y * bary[2]) * ir.getHeight());
        // ir.getHeight() - y -1 );
        ColorRGBA out = ir.getPixel(x, y);
        return out;
    } else {
        throw new UnsupportedOperationException("Position buffer not set or has incompatible format");
    }
}

Example 63 with VertexBuffer

use of com.jme3.scene.VertexBuffer in project TeachingInSimulation by ScOrPiOzzy.

the class JmeUtil method getLineStart.

/**
 * 获取Mesh line的真实的Start点，预设
 * @param line com.jme3.scene.shape.Line
 */
public static Vector3f getLineStart(Line line) {
    VertexBuffer position = line.getBuffer(Type.Position);
    float[] arr = BufferUtils.getFloatArray((FloatBuffer) position.getDataReadOnly());
    return new Vector3f(arr[0], arr[1], arr[2]);
}