reader3ds.java

基于java的3d开发库。对坐java3d的朋友有很大的帮助。

          case ID_KEYFRAMER_UNKNOWN_01:
            chunkname = "ID_KEYFRAMER_UNKNOWN_01";
            break;
          case ID_KEYFRAMER_UNKNOWN_02:
            chunkname = "ID_KEYFRAMER_UNKNOWN_02";
            break;
          case ID_KEYFRAMER_OBJDES:
            chunkname = "ID_KEYFRAMER_OBJDES";
            break;
          case ID_KEYFRAMER_OBJHIERARCH:
            chunkname = "ID_KEYFRAMER_OBJHIERARCH";
            break;
          case ID_KEYFRAMER_OBJDUMMYNAME:
            chunkname = "ID_KEYFRAMER_OBJDUMMYNAME";
            break;
          case ID_KEYFRAMER_OBJUNKNOWN_01:
            chunkname = "ID_KEYFRAMER_OBJUNKNOWN_01";
            break;
          case ID_KEYFRAMER_OBJUNKNOWN_02:
            chunkname = "ID_KEYFRAMER_OBJUNKNOWN_02";
            break;
          case ID_KEYFRAMER_OBJUNKNOWN_03:
            chunkname = "ID_KEYFRAMER_OBJUNKNOWN_03";
            break;
          case ID_KEYFRAMER_OBJPIVOT:
            chunkname = "ID_KEYFRAMER_OBJPIVOT";
            break;
          case ID_KEYFRAMER_OBJUNKNOWN_04:
            chunkname = "ID_KEYFRAMER_OBJUNKNOWN_04";
            break;
          case ID_KEYFRAMER_OBJUNKNOWN_05:
            chunkname = "ID_KEYFRAMER_OBJUNKNOWN_05";
            break;
          case ID_MATERIAL_MAPSHINE:    chunkname = "ID_MATERIAL_MAPSHINE";    break;
          case ID_MATERIAL_MAPSHINEMASK:
            chunkname = "ID_MATERIAL_MAPSHINEMASK";
            break;
          case ID_MATERIAL_AUTOREFLECTION:
            chunkname = "ID_MATERIAL_AUTOREFLECTION";
            break;
          case ID_MATERIAL_BUMPMAP:
            chunkname = "ID_MATERIAL_BUMPMAP";
            break;
          case ID_MATERIAL_BUMPMAPMASK:
            chunkname = "ID_MATERIAL_BUMPMAPMASK";
            break;
          case ID_MATERIAL_MAPOPACITY:
            chunkname = "ID_MATERIAL_MAPOPACITY";
            break;
          case ID_MATERIAL_MAPOPACITYMASK:
            chunkname = "ID_MATERIAL_MAPOPACITYMASK";
            break;
          case ID_MATERIAL_MAPSPECULAR:
            chunkname = "ID_MATERIAL_MAPSPECULAR";
            break;
          case ID_MATERIAL_MAPSPECULARMASK:
            chunkname = "ID_MATERIAL_MAPSPECULARMASK";
            break;
          case ID_UNKNOWN_01:    chunkname = "ID_UNKNOWN_01";    break;
          case ID_UNKNOWN_02:    chunkname = "ID_UNKNOWN_02";    break;
          case ID_UNKNOWN_03:    chunkname = "ID_UNKNOWN_03";    break;
          case ID_UNKNOWN_04:    chunkname = "ID_UNKNOWN_04";    break;
          case ID_UNKNOWN_05:    chunkname = "ID_UNKNOWN_05";    break;
          case ID_UNKNOWN_06:    chunkname = "ID_UNKNOWN_06";    break;
          case ID_UNKNOWN_07:    chunkname = "ID_UNKNOWN_07";    break;
          case ID_UNKNOWN_08:    chunkname = "ID_UNKNOWN_08";    break;
          case ID_UNKNOWN_09:    chunkname = "ID_UNKNOWN_09";    break;
          case ID_UNKNOWN_10:    chunkname = "ID_UNKNOWN_10";    break;
          case ID_UNKNOWN_11:    chunkname = "ID_UNKNOWN_11";    break;
          case ID_UNKNOWN_12:    chunkname = "ID_UNKNOWN_12";    break;
          case ID_UNKNOWN_13:    chunkname = "ID_UNKNOWN_13";    break;
          case ID_UNKNOWN_14:    chunkname = "ID_UNKNOWN_14";    break;
          case ID_UNKNOWN_15:    chunkname = "ID_UNKNOWN_15";    break;
          case ID_UNKNOWN_16:    chunkname = "ID_UNKNOWN_16";    break;
          case ID_UNKNOWN_17:    chunkname = "ID_UNKNOWN_17";    break;
          case ID_UNKNOWN_18:    chunkname = "ID_UNKNOWN_18";    break;
          case ID_UNKNOWN_19:    chunkname = "ID_UNKNOWN_19";    break;
          case ID_UNKNOWN_20:    chunkname = "ID_UNKNOWN_20";    break;
          case ID_UNKNOWN_21:    chunkname = "ID_UNKNOWN_21";    break;
          case ID_UNKNOWN_22:    chunkname = "ID_UNKNOWN_22";    break;
          case ID_UNKNOWN_23:    chunkname = "ID_UNKNOWN_23";    break;
          case ID_UNKNOWN_24:    chunkname = "ID_UNKNOWN_24";    break;
          case ID_UNKNOWN_25:    chunkname = "ID_UNKNOWN_25";    break;
          case ID_UNKNOWN_26:    chunkname = "ID_UNKNOWN_26";    break;
          case ID_UNKNOWN_27:    chunkname = "ID_UNKNOWN_27";    break;
          case ID_UNKNOWN_28:    chunkname = "ID_UNKNOWN_28";    break;
          case ID_UNKNOWN_29:    chunkname = "ID_UNKNOWN_29";    break;
          case ID_UNKNOWN_30:    chunkname = "ID_UNKNOWN_30";    break;
          case ID_UNKNOWN_31:    chunkname = "ID_UNKNOWN_31";    break;
          case ID_UNKNOWN_32:    chunkname = "ID_UNKNOWN_32";    break;
          case ID_UNKNOWN_33:    chunkname = "ID_UNKNOWN_33";    break;
          case ID_UNKNOWN_34:    chunkname = "ID_UNKNOWN_34";    break;
          case ID_UNKNOWN_35:    chunkname = "ID_UNKNOWN_35";    break;
          case ID_UNKNOWN_36:    chunkname = "ID_UNKNOWN_36";    break;
          case ID_UNKNOWN_37:    chunkname = "ID_UNKNOWN_37";    break;
          case ID_UNKNOWN_38:    chunkname = "ID_UNKNOWN_38";    break;
          case ID_UNKNOWN_39:    chunkname = "ID_UNKNOWN_39";    break;
          case ID_UNKNOWN_40:    chunkname = "ID_UNKNOWN_40";    break;
          case ID_UNKNOWN_41:    chunkname = "ID_UNKNOWN_41";    break;
          case ID_UNKNOWN_42:    chunkname = "ID_UNKNOWN_42";    break;
          case ID_UNKNOWN_43:    chunkname = "ID_UNKNOWN_43";    break;
          case ID_UNKNOWN_44:    chunkname = "ID_UNKNOWN_44";    break;
          case ID_UNKNOWN_45:    chunkname = "ID_UNKNOWN_45";    break;
          case ID_UNKNOWN_46:    chunkname = "ID_UNKNOWN_46";    break;
          case ID_UNKNOWN_47:    chunkname = "ID_UNKNOWN_47";    break;
          case ID_UNKNOWN_48:    chunkname = "ID_UNKNOWN_48";    break;
          case ID_UNKNOWN_49:    chunkname = "ID_UNKNOWN_49";    break;
          case ID_UNKNOWN_50:    chunkname = "ID_UNKNOWN_50";    break;
          case ID_UNKNOWN_51:    chunkname = "ID_UNKNOWN_51";    break;
          case ID_UNKNOWN_52:    chunkname = "ID_UNKNOWN_52";    break;
          case ID_UNKNOWN_53:    chunkname = "ID_UNKNOWN_53";    break;
          case ID_UNKNOWN_54:    chunkname = "ID_UNKNOWN_54";    break;
          case ID_UNKNOWN_55:    chunkname = "ID_UNKNOWN_55";    break;
          case ID_UNKNOWN_56:    chunkname = "ID_UNKNOWN_56";    break;
          case ID_UNKNOWN_57:    chunkname = "ID_UNKNOWN_57";    break;
          case ID_UNKNOWN_58:    chunkname = "ID_UNKNOWN_58";    break;
          case ID_UNKNOWN_59:    chunkname = "ID_UNKNOWN_59";    break;
          case ID_UNKNOWN_60:    chunkname = "ID_UNKNOWN_60";    break;
          case ID_UNKNOWN_61:    chunkname = "ID_UNKNOWN_61";    break;
          case ID_UNKNOWN_62:    chunkname = "ID_UNKNOWN_62";    break;
          case ID_UNKNOWN_63:    chunkname = "ID_UNKNOWN_63";    break;
          case ID_UNKNOWN_64:    chunkname = "ID_UNKNOWN_64";    break;
          case ID_UNKNOWN_65:    chunkname = "ID_UNKNOWN_65";    break;
          case ID_UNKNOWN_66:    chunkname = "ID_UNKNOWN_66";    break;
          case ID_UNKNOWN_67:    chunkname = "ID_UNKNOWN_67";    break;
          case ID_UNKNOWN_68:    chunkname = "ID_UNKNOWN_68";    break;
          case ID_UNKNOWN_69:    chunkname = "ID_UNKNOWN_69";    break;
          case ID_UNKNOWN_70:    chunkname = "ID_UNKNOWN_70";    break;
          case ID_UNKNOWN_71:    chunkname = "ID_UNKNOWN_71";    break;
          case ID_UNKNOWN_72:    chunkname = "ID_UNKNOWN_72";    break;
          default:
            byte a, b;
            a = (byte)((chunkid & 0xFF00) >> 8);
            b = (byte)((chunkid & 0x00FF));
            chunkname = "<Unknown id 0x" + 
                VSDK.formatByteAsHex(a) + VSDK.formatByteAsHex(b) + ">";
        }
        return chunkname;
    }

    public _Reader3dsChunk()
    {
        id = 0x0000;
        length = 0;
    }

    public String toString()
    {
        String msg;
        msg = "CHUNK3DS type [" +  chunkToString(id) + "], length ["
            + length + "]";
        return msg;
    }

    public void readHeader(InputStream is) throws Exception
    {
        id = readIntLE(is);
        length = readLongLE(is);
    }
}

/**
The class Reader3ds provides 3DStudio loading functionality.  The .3ds
fileformat was the original binary fileformat for ancient 3DStudio program
from Kinetix/Discreet originally deployed for the PC/DOS platform.  The
format was later upgraded to .MAX (not compatible) in windows version of
the program, known as "3DStudio MAX". However, current versions of 3DStudio
MAX support backward compatibility importing and exporting to old 3DStudio
format, and several files exists today persisted in this format.

This is currently a Java/VitralSDK based implementation of the algorithms
and data structures as described in [PITT1994], [FERC1996] and [VANV1997].

@todo Perhaps "Reader3ds" is not the best name for this class, as in the
future should support exporting (writing) operations. It could be renamed
to something as "Persistence3ds". Some chunks are not being processed.
*/
public class Reader3ds extends PersistenceElement
{
    // Accumulated object parts
    private static ArrayList<Vector3D> currentVertexPositionArray = null;
    private static ArrayList<_Reader3dsMaterialMapping> currentMaterialMappingArray = null;
    private static TriangleMesh currentTriangleMesh = null;
    private static Triangle currentTrianglesList[] = null;
    private static double currentUTextureMapping[] = null;
    private static double currentVTextureMapping[] = null;

    // Current environment building elements
    private static Material currentBuildingMaterial = null;
    private static String currentTextureFilename = null;
    private static ColorRgb currentColor = null;
    private static int currentAmount = 0;
    private static ArrayList<Material> currentMaterialArray = null;
    private static ArrayList<String> currentTextureFilenamesArray = null;
    private static ArrayList<SimpleBody> currentSimpleBodiesArray = null;
    private static String workingDirectory = null;

    // Error reporting attributes
    private static boolean bumpNotImplementedReported = false;
    private static boolean t2NotImplementedReported = false;

    private static Material defaultMaterial()
    {
        Material m = new Material();

        m.setAmbient(new ColorRgb(0.2, 0.2, 0.2));
        m.setDiffuse(new ColorRgb(0.5, 0.9, 0.5));
        m.setSpecular(new ColorRgb(1, 1, 1));
        return m;
    }

    private static Material resolveMaterial(String name)
    {
        int i;
        Material m;

        for ( i = 0; i < currentMaterialArray.size(); i++ ) {
            m = currentMaterialArray.get(i);
            if ( name.equals(m.getName()) ) {
                return m;
            }
        }
        return defaultMaterial();
    }

    private static int resolveMaterialIndex(String name)
    {
        int i;
        Material m;

        for ( i = 0; i < currentMaterialArray.size(); i++ ) {
            m = currentMaterialArray.get(i);
            if ( name.equals(m.getName()) ) {
                return i;
            }
        }
        return -1;
    }

    private static Image loadImagefile(String imageFilename)
    {
        //-----------------------------------------------------------------
        if ( imageFilename == null || imageFilename.length() < 1 ) {
            return null;
        }

        //-----------------------------------------------------------------
        RGBImage img = null;
        String fullFilename = workingDirectory + "/" + imageFilename.toLowerCase();

        try {
            img = ImagePersistence.importRGB(new File(fullFilename));
        }
        catch (Exception e) {
            System.err.println("Error: could not read the image file \"" + fullFilename + "\".");
            System.err.println("Check you have access to that file from current working directory.");
            System.err.println(e);
            img = new RGBImage();
            img.init(64, 64);
            img.createTestPattern();
        }
        return img;
    }

    private static void addThing(Geometry g,
        ArrayList<SimpleBody> inoutSimpleBodiesArray)
    {
        if ( inoutSimpleBodiesArray == null ) return;

        SimpleBody thing;

        thing = new SimpleBody();
        thing.setGeometry(g);
        thing.setPosition(new Vector3D());
        thing.setRotation(new Matrix4x4());
        thing.setRotationInverse(new Matrix4x4());
        thing.setMaterial(defaultMaterial());