reader3ds.java

基于java的3d开发库。对坐java3d的朋友有很大的帮助。

        inoutSimpleBodiesArray.add(thing);
    }

    private static String indent(int level) {
        String tab = "";
        switch ( level ) {
          case 0: tab = ""; break;
          case 1: tab = "  - "; break;
          case 2: tab = "    . "; break;
          default:
            tab = "      (" + level + ")-> ";
            break;
        }
        return tab;
    }

    private static boolean checkChunkHierarchy(_Reader3dsChunk son, 
                                               _Reader3dsChunk father)
    {
        if (
(father == null) ||
(father.id == father.ID_MAIN && son.id == son.ID_MESH) ||
(father.id == father.ID_MAIN && son.id == son.ID_BOTTOM) ||
(father.id == father.ID_MAIN && son.id == son.ID_KEYFRAMER) ||
(father.id == father.ID_MESH && son.id == son.ID_TOP) ||
(father.id == father.ID_MESH && son.id == son.ID_MATERIAL) ||
(father.id == father.ID_MESH && son.id == son.ID_OBJECT_BLOCK) ||
(father.id == father.ID_MESH && son.id == son.ID_EDIT_CONFIG1) ||
(father.id == father.ID_MESH && son.id == son.ID_VIEWPORT) ||
(father.id == father.ID_MESH && son.id == son.ID_EDIT_UNKNOWN_01) ||
(father.id == father.ID_MESH && son.id == son.ID_EDIT_UNKNOWN_02) ||
(father.id == father.ID_MESH && son.id == son.ID_EDIT_UNKNOWN_03) ||
(father.id == father.ID_MESH && son.id == son.ID_EDIT_UNKNOWN_04) ||
(father.id == father.ID_MESH && son.id == son.ID_EDIT_UNKNOWN_05) ||
(father.id == father.ID_MESH && son.id == son.ID_EDIT_UNKNOWN_06) ||
(father.id == father.ID_MESH && son.id == son.ID_EDIT_UNKNOWN_07) ||
(father.id == father.ID_MESH && son.id == son.ID_EDIT_UNKNOWN_08) ||
(father.id == father.ID_MESH && son.id == son.ID_EDIT_UNKNOWN_09) ||
(father.id == father.ID_MESH && son.id == son.ID_EDIT_UNKNOWN_10) ||
(father.id == father.ID_MESH && son.id == son.ID_EDIT_UNKNOWN_11) ||
(father.id == father.ID_MESH && son.id == son.ID_EDIT_UNKNOWN_12) ||
(father.id == father.ID_MESH && son.id == son.ID_EDIT_UNKNOWN_13) ||
(father.id == father.ID_MESH && son.id == son.ID_EDIT_UNKNOWN_14) ||
(father.id == father.ID_MESH && son.id == son.ID_AMBIENT_COLOR) ||
(father.id == father.ID_MESH && son.id == son.ID_BACKGROUND_COLOR) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_NAME) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_AMBIENT) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_DIFFUSE) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_SPECULAR) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_TYPE) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_SHININESS_EXP) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_SHININESS_KTE) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_TRANSPARENCY) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_TRANSPARENCY_F) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_TRANSPARENCY_FI) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_REFLECT_BLUR) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_TWOSIDED) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_WIREON) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_WIRE_THICKNESS) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_SOFTEN) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_TEXTURE1) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_TEXTURE2) ||
(father.id == father.ID_MATERIAL && son.id == son.ID_MATERIAL_BUMPMAP) ||
(father.id == father.ID_MATERIAL_TEXTURE1 && son.id == son.ID_AMOUNT) ||
(father.id == father.ID_MATERIAL_TEXTURE1 && son.id == son.ID_MATERIAL_MAPOPTIONS) ||
(father.id == father.ID_MATERIAL_TEXTURE1 && son.id == son.ID_MATERIAL_MAPFILTERBLUR) ||
(father.id == father.ID_MATERIAL_TEXTURE1 && son.id == son.ID_MATERIAL_MAPUOFFSET) ||
(father.id == father.ID_MATERIAL_TEXTURE1 && son.id == son.ID_MATERIAL_MAPVOFFSET) ||
(father.id == father.ID_MATERIAL_TEXTURE1 && son.id == son.ID_MATERIAL_MAP1USCALE) ||
(father.id == father.ID_MATERIAL_TEXTURE1 && son.id == son.ID_MATERIAL_MAP1VSCALE) ||
(father.id == father.ID_MATERIAL_TEXTURE1 && son.id == son.ID_MATERIAL_MAPFILENAME) ||
(father.id == father.ID_TRIANGLE_LIST && son.id == son.ID_MATERIAL_MAPPING_TABLE) ||
(father.id == father.ID_TRIANGLE_LIST && son.id == son.ID_SMOOTH_LIST) ||
(father.id == father.ID_OBJECT_BLOCK && son.id == son.ID_TRIANGLE_MESH) ||
(father.id == father.ID_OBJECT_BLOCK && son.id == son.ID_LIGHT) ||
(father.id == father.ID_OBJECT_BLOCK && son.id == son.ID_CAMERA) ||
(father.id == father.ID_TRIANGLE_MESH && son.id == son.ID_VERTEX_LIST) ||
(father.id == father.ID_TRIANGLE_MESH && son.id == son.ID_TRIANGLE_LIST) ||
(father.id == father.ID_TRIANGLE_MESH && son.id == son.ID_MAP_LIST) ||
(father.id == father.ID_MATERIAL_SHININESS_KTE && son.id == son.ID_AMOUNT) ||
(father.id == father.ID_MATERIAL_SHININESS_EXP && son.id == son.ID_AMOUNT) ||
(father.id == father.ID_MATERIAL_TRANSPARENCY && son.id == son.ID_AMOUNT) ||
(father.id == father.ID_MATERIAL_TRANSPARENCY_F && son.id == son.ID_AMOUNT) ||
(father.id == father.ID_MATERIAL_TRANSPARENCY_FI && son.id == son.ID_AMOUNT) ||
(father.id == father.ID_MATERIAL_REFLECT_BLUR && son.id == son.ID_AMOUNT) ||
(father.id == father.ID_TRIANGLE_MESH && son.id == son.ID_OBJECT_IS_VISIBLE) ||
(father.id == father.ID_TRIANGLE_MESH && son.id == son.ID_TRI_VERTEX_OPTIONS) ||(father.id == father.ID_TRIANGLE_MESH && son.id == son.ID_MATRIX) ||
((father.id == father.ID_MATERIAL_AMBIENT || 
  father.id == father.ID_MATERIAL_DIFFUSE || 
  father.id == father.ID_MATERIAL_SPECULAR)  && son.id == son.ID_COLOR_RGB1) ||
((father.id == father.ID_MATERIAL_AMBIENT || 
  father.id == father.ID_MATERIAL_DIFFUSE || 
  father.id == father.ID_MATERIAL_SPECULAR)  && son.id == son.ID_COLOR_RGB2) ||
((father.id == father.ID_MATERIAL_AMBIENT || 
  father.id == father.ID_MATERIAL_DIFFUSE || 
  father.id == father.ID_MATERIAL_SPECULAR)  && son.id == son.ID_COLOR_RGB3)
        ) {
            return true;
        }

        if ( son.id == son.ID_UNKNOWN_01 || son.id == son.ID_UNKNOWN_02 ||
             son.id == son.ID_UNKNOWN_03 || son.id == son.ID_UNKNOWN_04 ||
             son.id == son.ID_UNKNOWN_05 || son.id == son.ID_UNKNOWN_06 ||
             son.id == son.ID_UNKNOWN_07 || son.id == son.ID_UNKNOWN_08 ||
             son.id == son.ID_UNKNOWN_09 || son.id == son.ID_UNKNOWN_10 ||
             son.id == son.ID_UNKNOWN_11 || son.id == son.ID_UNKNOWN_12 ||
             son.id == son.ID_UNKNOWN_13 || son.id == son.ID_UNKNOWN_14 ||
             son.id == son.ID_UNKNOWN_15 || son.id == son.ID_UNKNOWN_16 ||
             son.id == son.ID_UNKNOWN_17 || son.id == son.ID_UNKNOWN_18 ||
             son.id == son.ID_UNKNOWN_19 || son.id == son.ID_UNKNOWN_20 ||
             son.id == son.ID_UNKNOWN_21 || son.id == son.ID_UNKNOWN_22 ||
             son.id == son.ID_UNKNOWN_23 || son.id == son.ID_UNKNOWN_24 ||
             son.id == son.ID_UNKNOWN_25 || son.id == son.ID_UNKNOWN_26 ||
             son.id == son.ID_UNKNOWN_27 || son.id == son.ID_UNKNOWN_28 ||
             son.id == son.ID_UNKNOWN_29 || son.id == son.ID_UNKNOWN_30 ||
             son.id == son.ID_UNKNOWN_31 || son.id == son.ID_UNKNOWN_32 ||
             son.id == son.ID_UNKNOWN_33 || son.id == son.ID_UNKNOWN_34 ||
             son.id == son.ID_UNKNOWN_35 || son.id == son.ID_UNKNOWN_36 ||
             son.id == son.ID_UNKNOWN_37 || son.id == son.ID_UNKNOWN_38 ||
             son.id == son.ID_UNKNOWN_39 || son.id == son.ID_UNKNOWN_40 ||
             son.id == son.ID_UNKNOWN_41 || son.id == son.ID_UNKNOWN_42 ||
             son.id == son.ID_UNKNOWN_43 || son.id == son.ID_UNKNOWN_44 ||
             son.id == son.ID_UNKNOWN_45 || son.id == son.ID_UNKNOWN_46 ||
             son.id == son.ID_UNKNOWN_47 || son.id == son.ID_UNKNOWN_48 ||
             son.id == son.ID_UNKNOWN_49 || son.id == son.ID_UNKNOWN_50 ||
             son.id == son.ID_UNKNOWN_51 || son.id == son.ID_UNKNOWN_52 ||
             son.id == son.ID_UNKNOWN_53 || son.id == son.ID_UNKNOWN_54 ||
             son.id == son.ID_UNKNOWN_55 || son.id == son.ID_UNKNOWN_56 ||
             son.id == son.ID_UNKNOWN_57 || son.id == son.ID_UNKNOWN_58 ||
             son.id == son.ID_UNKNOWN_59 || son.id == son.ID_UNKNOWN_60 ||
             son.id == son.ID_UNKNOWN_61 || son.id == son.ID_UNKNOWN_62 ||
             son.id == son.ID_UNKNOWN_63 || son.id == son.ID_UNKNOWN_64 ||
             son.id == son.ID_UNKNOWN_65 || son.id == son.ID_UNKNOWN_66 ||
             son.id == son.ID_UNKNOWN_67 || son.id == son.ID_UNKNOWN_67 ||
             son.id == son.ID_UNKNOWN_68 || son.id == son.ID_UNKNOWN_69 ||
             son.id == son.ID_UNKNOWN_70 || son.id == son.ID_UNKNOWN_71 ||
             son.id == son.ID_UNKNOWN_72 ) {
            // WARNING: Not implemented features!
            return true;
        }

        VSDK.reportMessage(null, VSDK.WARNING,
                           "Reader3ds.checkChunkHierarchy",
                           "" + son.chunkToString(son.id) + 
                           " chunk is not supposed to be a level under a " +
                           father.chunkToString(father.id) + " chunk");
        return false;
    }

    /**
    @todo Process missing chunks. (skipped)
    */
    private static void processChunk(
        InputStream is, 
        _Reader3dsChunk currentChunk, _Reader3dsChunk parentChunk,
        int level) 
        throws Exception
    {
        //-----------------------------------------------------------------
        boolean skipChunk = false;

        if ( !checkChunkHierarchy(currentChunk, parentChunk) ) {
            skipChunk = true;
        }

        //-----------------------------------------------------------------
        int i;

        if ( (currentChunk.id == currentChunk.ID_MAIN) ||
             (currentChunk.id == currentChunk.ID_MESH) || 
             (currentChunk.id == currentChunk.ID_OBJECT_BLOCK) ||
             (currentChunk.id == currentChunk.ID_MATERIAL) ||
             (currentChunk.id == currentChunk.ID_TRIANGLE_MESH)
           ) {
            //-------------------------------------------------------------
            long internalBytes = 6; // skip current chunk header

            // Build operations preprocessing phase
            if ( currentChunk.id == currentChunk.ID_OBJECT_BLOCK ) {
                // Object block starts with a name string
                //System.out.print(indent(level) + "Reading object \"");
                String cad = readAsciiString(is);
                internalBytes += cad.length()+1;
                //System.out.println(cad + "\"");
            }
            if ( currentChunk.id == currentChunk.ID_TRIANGLE_MESH ) {
                currentTriangleMesh = new TriangleMesh();
                currentMaterialMappingArray =
                    new ArrayList<_Reader3dsMaterialMapping>();
            }
            if ( currentChunk.id == currentChunk.ID_MATERIAL ) {
                currentTextureFilename = null;
                currentBuildingMaterial = new Material();
                currentBuildingMaterial.setDoubleSided(false);
            }

            // Generic recursive block processing
            //System.out.println(indent(level) + currentChunk);

            // Processing of recursive chunks
            _Reader3dsChunk subChunk = new _Reader3dsChunk();

            do {
                subChunk.readHeader(is);
                processChunk(is, subChunk, currentChunk, level+1);
                internalBytes += subChunk.length;
            } while ( is.available() > 0 && 
                      (internalBytes < currentChunk.length) );

            // Build operations postprocessing phase
            if ( currentChunk.id == currentChunk.ID_MATERIAL ) {
                currentMaterialArray.add(currentBuildingMaterial);
                currentTextureFilenamesArray.add(currentTextureFilename);
            }
            if ( currentChunk.id == currentChunk.ID_TRIANGLE_MESH ) {
                // Vertex processing
                Vertex v[] = new Vertex[currentVertexPositionArray.size()];
                for ( i = 0; i < v.length; i++ ) {
                    v[i] = new Vertex(new Vector3D(currentVertexPositionArray.get(i)));
                }
                for ( i = 0;
                      i < v.length && currentUTextureMapping != null &&
                      i < currentUTextureMapping.length;
                      i++ ) {
                    v[i].u = currentUTextureMapping[i];
                    v[i].v = currentVTextureMapping[i];
                }
                currentTriangleMesh.setVertexes(v);

                // Triangle processing
                int numMappedTriangles = 0;
                _Reader3dsMaterialMapping map_i;
                for ( i = 0; i < currentMaterialMappingArray.size(); i++ ) {
                    map_i = currentMaterialMappingArray.get(i);
                    numMappedTriangles += map_i.associatedTriangles.length;
                }

                if ( numMappedTriangles <= 0 ) {
                    currentTriangleMesh.setTriangles(currentTrianglesList);
                }
                else {
                    Triangle newTrianglesList[];
                    Material newMaterials[];
                    Image newTextures[];
                    int newMaterialRanges[][];
                    int newTextureRanges[][];
                    int j, k, textureIndex;

                    newTrianglesList = new Triangle[numMappedTriangles];
                    newMaterials =
                        new Material[currentMaterialMappingArray.size()];
                    newTextures = new Image[currentMaterialMappingArray.size()];
                    newMaterialRanges = new int[currentMaterialMappingArray.size()][2];
                    newTextureRanges = new int[currentMaterialMappingArray.size()][2];

                    for ( i = 0, k = 0; 
                          i < currentMaterialMappingArray.size(); i++ ) {
                        map_i = currentMaterialMappingArray.get(i);
                        newMaterials[i] = resolveMaterial(map_i.materialName);
                        textureIndex = resolveMaterialIndex(map_i.materialName);
                        if ( textureIndex >= 0 ) {
                            newTextures[i] = loadImagefile(currentTextureFilenamesArray.get(textureIndex));
                          }
                          else {
                            newTextures[i] = null;
                        }

                        // This is checkpoint A
                        if ( newTrianglesList == null ) {
                            VSDK.reportMessage(null, VSDK.WARNING,
                            "Reader3ds.processChunk",
                            "null newTriangleList at checkpoint A.");
                        }
                        if ( currentTrianglesList == null ) {
                            VSDK.reportMessage(null, VSDK.WARNING,
                            "Reader3ds.processChunk",
                            "null currentTrianglesList at checkpoint A.");