Examples with GeometryData org.bimserver.models.geometry.GeometryData used on opensource projects

Example 6 with GeometryData

use of org.bimserver.models.geometry.GeometryData in project BIMserver by opensourceBIM.

the class OfflineGeometryGenerator method generateGeometry.

private GenerateGeometryResult generateGeometry(IfcProduct ifcProduct) {
    GenerateGeometryResult generateGeometryResult = new GenerateGeometryResult();
    if (ifcProduct.getRepresentation() != null && ifcProduct.getRepresentation().getRepresentations().size() != 0) {
        try {
            RenderEngineInstance renderEngineInstance = renderEngineModel.getInstanceFromExpressId(ifcProduct.getExpressId());
            RenderEngineGeometry geometry = renderEngineInstance.generateGeometry();
            boolean translate = true;
            if (geometry != null && geometry.getNrIndices() > 0) {
                GeometryInfo geometryInfo = null;
                geometryInfo = GeometryFactory.eINSTANCE.createGeometryInfo();
                geometryInfo.setMinBounds(createVector3f(model.getPackageMetaData(), model, Double.POSITIVE_INFINITY));
                geometryInfo.setMaxBounds(createVector3f(model.getPackageMetaData(), model, -Double.POSITIVE_INFINITY));
                try {
                    double area = renderEngineInstance.getArea();
                    geometryInfo.setArea(area);
                    double volume = renderEngineInstance.getVolume();
                    if (volume < 0d) {
                        volume = -volume;
                    }
                    geometryInfo.setVolume(volume);
                // EStructuralFeature guidFeature = ifcProduct.eClass().getEStructuralFeature("GlobalId");
                // String guid = (String) ifcProduct.eGet(guidFeature);
                // System.out.println(guid + ": " + "Area: " + area + ", Volume: " + volume);
                } catch (UnsupportedOperationException e) {
                }
                GeometryData geometryData = null;
                geometryData = GeometryFactory.eINSTANCE.createGeometryData();
                geometryData.setIndices(intArrayToByteArray(geometry.getIndices()));
                geometryData.setVertices(floatArrayToByteArray(geometry.getVertices()));
                geometryData.setMaterialIndices(intArrayToByteArray(geometry.getMaterialIndices()));
                geometryData.setNormals(floatArrayToByteArray(geometry.getNormals()));
                geometryInfo.setPrimitiveCount(geometry.getIndices().length / 3);
                if (geometry.getMaterialIndices() != null && geometry.getMaterialIndices().length > 0) {
                    boolean hasMaterial = false;
                    float[] vertex_colors = new float[geometry.getVertices().length / 3 * 4];
                    for (int i = 0; i < geometry.getMaterialIndices().length; ++i) {
                        int c = geometry.getMaterialIndices()[i];
                        for (int j = 0; j < 3; ++j) {
                            int k = geometry.getIndices()[i * 3 + j];
                            if (c > -1) {
                                hasMaterial = true;
                                for (int l = 0; l < 4; ++l) {
                                    vertex_colors[4 * k + l] = geometry.getMaterials()[4 * c + l];
                                }
                            }
                        }
                    }
                    if (hasMaterial) {
                        geometryData.setMaterials(floatArrayToByteArray(vertex_colors));
                    }
                }
                double[] tranformationMatrix = new double[16];
                Matrix.setIdentityM(tranformationMatrix, 0);
                if (translate && renderEngineInstance.getTransformationMatrix() != null) {
                    tranformationMatrix = renderEngineInstance.getTransformationMatrix();
                }
                for (int i = 0; i < geometry.getIndices().length; i++) {
                    processExtends(geometryInfo, tranformationMatrix, geometry.getVertices(), geometry.getIndices()[i] * 3, generateGeometryResult);
                }
                geometryInfo.setData(geometryData);
                // long length = (geometryData.getIndices() != null ? geometryData.getIndices().length : 0) +
                // (geometryData.getVertices() != null ? geometryData.getVertices().length : 0) +
                // (geometryData.getNormals() != null ? geometryData.getNormals().length : 0) +
                // (geometryData.getMaterials() != null ? geometryData.getMaterials().length : 0) +
                // (geometryData.getMaterialIndices() != null ? geometryData.getMaterialIndices().length : 0);
                setTransformationMatrix(geometryInfo, tranformationMatrix);
                int hash = hash(geometryData);
                if (hashes.containsKey(hash)) {
                    geometryInfo.setData(hashes.get(hash));
                } else {
                    hashes.put(hash, geometryData);
                }
                ifcProduct.setGeometry(geometryInfo);
            }
        } catch (EntityNotFoundException e) {
            // As soon as we find a representation that is not Curve2D, then we should show a "INFO" message in the log to indicate there could be something wrong
            boolean ignoreNotFound = true;
            // }
            if (!ignoreNotFound) {
                LOGGER.info("Entity not found " + ifcProduct.eClass().getName() + " " + ifcProduct.getExpressId() + "/" + ifcProduct.getOid());
            }
        } catch (BimserverDatabaseException | RenderEngineException e) {
            LOGGER.error("", e);
        } catch (IfcModelInterfaceException e) {
            LOGGER.error("", e);
        }
    }
    return generateGeometryResult;
}

Example 7 with GeometryData

use of org.bimserver.models.geometry.GeometryData in project BIMserver by opensourceBIM.

the class GeometrySimplifier method getMatchingGeometry.

public Set<GeometryData> getMatchingGeometry(IfcProduct ifcProduct, GeometryData geometryData) {
    Set<GeometryData> result = new HashSet<>();
    Map<Integer, Set<GeometryData>> ofType = data.get(ifcProduct.eClass());
    if (ofType != null) {
        Set<GeometryData> set = ofType.get(geometryData.getVertices().length);
        if (set != null) {
            for (GeometryData d : set) {
                if (d != ifcProduct.getGeometry().getData()) {
                    if (matchExactlyTheSame(geometryData, d)) {
                        result.add(d);
                    } else if (matchSameOrder(geometryData, d)) {
                        result.add(d);
                    // } else if (matchTotalDistance(geometryData, d)) {
                    // return d;
                    }
                }
            }
        }
    }
    return result;
}

Example 8 with GeometryData

use of org.bimserver.models.geometry.GeometryData in project GltfSerializers by opensourceBIM.

the class BinaryGltfSerializer method addVerticesAccessor.

private String addVerticesAccessor(IfcProduct ifcProduct, String bufferViewName, int startPosition, int count) throws SerializerException {
    if (count <= 0) {
        throw new SerializerException("Count <= 0");
    }
    String accessorName = "accessor_vertex_" + (accessorCounter++);
    GeometryData data = ifcProduct.getGeometry().getData();
    ByteBuffer verticesBuffer = ByteBuffer.wrap(data.getVertices());
    ObjectNode accessor = OBJECT_MAPPER.createObjectNode();
    accessor.put("bufferView", bufferViewName);
    accessor.put("byteOffset", startPosition);
    accessor.put("byteStride", 12);
    accessor.put("componentType", FLOAT);
    accessor.put("count", count);
    accessor.put("type", "VEC3");
    verticesBuffer.order(ByteOrder.LITTLE_ENDIAN);
    double[] min = { Double.MAX_VALUE, Double.MAX_VALUE, Double.MAX_VALUE };
    double[] max = { -Double.MAX_VALUE, -Double.MAX_VALUE, -Double.MAX_VALUE };
    for (int i = 0; i < verticesBuffer.capacity(); i += 3) {
        for (int j = 0; j < 3; j++) {
            double val = verticesBuffer.get(i + j);
            if (val > max[j]) {
                max[j] = val;
            }
            if (val < min[j]) {
                min[j] = val;
            }
        }
    }
    ArrayNode minNode = OBJECT_MAPPER.createArrayNode();
    minNode.add(min[0]);
    minNode.add(min[1]);
    minNode.add(min[2]);
    ArrayNode maxNode = OBJECT_MAPPER.createArrayNode();
    maxNode.add(max[0]);
    maxNode.add(max[1]);
    maxNode.add(max[2]);
    accessor.set("min", minNode);
    accessor.set("max", maxNode);
    accessors.set(accessorName, accessor);
    return accessorName;
}

Example 9 with GeometryData

use of org.bimserver.models.geometry.GeometryData in project GltfSerializers by opensourceBIM.

the class BinaryGltfSerializer method generateSceneAndBody.

private void generateSceneAndBody() throws SerializerException {
    int totalBodyByteLength = 0;
    int totalIndicesByteLength = 0;
    int totalVerticesByteLength = 0;
    int totalNormalsByteLength = 0;
    int totalColorsByteLength = 0;
    int maxIndexValues = 16389;
    for (IfcProduct ifcProduct : model.getAllWithSubTypes(IfcProduct.class)) {
        GeometryInfo geometryInfo = ifcProduct.getGeometry();
        if (!ifcProduct.eClass().getName().equals("IfcOpeningElement") && geometryInfo != null && geometryInfo.getData().getVertices().length > 0) {
            GeometryData data = geometryInfo.getData();
            int nrIndicesBytes = data.getIndices().length;
            totalIndicesByteLength += nrIndicesBytes / 2;
            if (nrIndicesBytes > 4 * maxIndexValues) {
                int nrIndices = nrIndicesBytes / 4;
                totalVerticesByteLength += nrIndices * 3 * 4;
                totalNormalsByteLength += nrIndices * 3 * 4;
                if (data.getMaterials() != null) {
                    totalColorsByteLength += nrIndices * 4 * 4;
                }
            } else {
                totalVerticesByteLength += data.getVertices().length;
                totalNormalsByteLength += data.getNormals().length;
                if (data.getMaterials() != null) {
                    totalColorsByteLength += data.getMaterials().length;
                }
            }
        }
    }
    totalBodyByteLength = totalIndicesByteLength + totalVerticesByteLength + totalNormalsByteLength + totalColorsByteLength;
    body = ByteBuffer.allocate(totalBodyByteLength + materialColorFragmentShaderBytes.length + materialColorVertexShaderBytes.length + vertexColorFragmentShaderBytes.length + vertexColorVertexShaderBytes.length);
    body.order(ByteOrder.LITTLE_ENDIAN);
    ByteBuffer newIndicesBuffer = ByteBuffer.allocate(totalIndicesByteLength);
    newIndicesBuffer.order(ByteOrder.LITTLE_ENDIAN);
    ByteBuffer newVerticesBuffer = ByteBuffer.allocate(totalVerticesByteLength);
    newVerticesBuffer.order(ByteOrder.LITTLE_ENDIAN);
    ByteBuffer newNormalsBuffer = ByteBuffer.allocate(totalNormalsByteLength);
    newNormalsBuffer.order(ByteOrder.LITTLE_ENDIAN);
    ByteBuffer newColorsBuffer = ByteBuffer.allocate(totalColorsByteLength);
    newColorsBuffer.order(ByteOrder.LITTLE_ENDIAN);
    String indicesBufferView = createBufferView(totalIndicesByteLength, 0, ELEMENT_ARRAY_BUFFER);
    String verticesBufferView = createBufferView(totalVerticesByteLength, totalIndicesByteLength, ARRAY_BUFFER);
    String normalsBufferView = createBufferView(totalNormalsByteLength, totalIndicesByteLength + totalVerticesByteLength, ARRAY_BUFFER);
    String colorsBufferView = null;
    scenesNode.set("defaultScene", createDefaultScene());
    createModelNode();
    for (IfcProduct ifcProduct : model.getAllWithSubTypes(IfcProduct.class)) {
        GeometryInfo geometryInfo = ifcProduct.getGeometry();
        if (!ifcProduct.eClass().getName().equals("IfcOpeningElement") && geometryInfo != null) {
            ByteBuffer matrixByteBuffer = ByteBuffer.wrap(ifcProduct.getGeometry().getTransformation());
            matrixByteBuffer.order(ByteOrder.LITTLE_ENDIAN);
            DoubleBuffer doubleBuffer = matrixByteBuffer.asDoubleBuffer();
            float[] matrix = new float[16];
            for (int i = 0; i < doubleBuffer.capacity(); i++) {
                matrix[i] = (float) doubleBuffer.get();
            }
            updateExtends(geometryInfo, matrix);
        }
    }
    float[] offsets = getOffsets();
    // This will "normalize" the model by moving it's axis-aligned bounding box center to the 0-point. This will always be the wrong position, but at least the building will be close to the 0-point
    modelTranslation.add(-offsets[0]);
    modelTranslation.add(-offsets[1]);
    modelTranslation.add(-offsets[2]);
    for (IfcProduct ifcProduct : model.getAllWithSubTypes(IfcProduct.class)) {
        GeometryInfo geometryInfo = ifcProduct.getGeometry();
        if (!ifcProduct.eClass().getName().equals("IfcOpeningElement") && geometryInfo != null && geometryInfo.getData().getVertices().length > 0) {
            int startPositionIndices = newIndicesBuffer.position();
            int startPositionVertices = newVerticesBuffer.position();
            int startPositionNormals = newNormalsBuffer.position();
            int startPositionColors = newColorsBuffer.position();
            GeometryData data = geometryInfo.getData();
            ByteBuffer indicesBuffer = ByteBuffer.wrap(data.getIndices());
            indicesBuffer.order(ByteOrder.LITTLE_ENDIAN);
            IntBuffer indicesIntBuffer = indicesBuffer.asIntBuffer();
            ByteBuffer verticesBuffer = ByteBuffer.wrap(data.getVertices());
            verticesBuffer.order(ByteOrder.LITTLE_ENDIAN);
            FloatBuffer verticesFloatBuffer = verticesBuffer.asFloatBuffer();
            ByteBuffer normalsBuffer = ByteBuffer.wrap(data.getNormals());
            normalsBuffer.order(ByteOrder.LITTLE_ENDIAN);
            FloatBuffer normalsFloatBuffer = normalsBuffer.asFloatBuffer();
            FloatBuffer materialsFloatBuffer = null;
            if (data.getMaterials() != null) {
                ByteBuffer materialsBuffer = ByteBuffer.wrap(data.getMaterials());
                materialsBuffer.order(ByteOrder.LITTLE_ENDIAN);
                materialsFloatBuffer = materialsBuffer.asFloatBuffer();
            }
            if (data.getIndices().length > 4 * maxIndexValues) {
                int totalNrIndices = indicesIntBuffer.capacity();
                int nrParts = (totalNrIndices + maxIndexValues - 1) / maxIndexValues;
                ArrayNode primitivesNode = OBJECT_MAPPER.createArrayNode();
                for (int part = 0; part < nrParts; part++) {
                    startPositionIndices = newIndicesBuffer.position();
                    startPositionVertices = newVerticesBuffer.position();
                    startPositionNormals = newNormalsBuffer.position();
                    startPositionColors = newColorsBuffer.position();
                    short indexCounter = 0;
                    int upto = Math.min((part + 1) * maxIndexValues, totalNrIndices);
                    for (int i = part * maxIndexValues; i < upto; i++) {
                        newIndicesBuffer.putShort(indexCounter++);
                    }
                    int nrVertices = upto - part * maxIndexValues;
                    for (int i = part * maxIndexValues; i < upto; i += 3) {
                        int oldIndex1 = indicesIntBuffer.get(i);
                        int oldIndex2 = indicesIntBuffer.get(i + 1);
                        int oldIndex3 = indicesIntBuffer.get(i + 2);
                        newVerticesBuffer.putFloat(verticesFloatBuffer.get(oldIndex1 * 3));
                        newVerticesBuffer.putFloat(verticesFloatBuffer.get(oldIndex1 * 3 + 1));
                        newVerticesBuffer.putFloat(verticesFloatBuffer.get(oldIndex1 * 3 + 2));
                        newVerticesBuffer.putFloat(verticesFloatBuffer.get(oldIndex2 * 3));
                        newVerticesBuffer.putFloat(verticesFloatBuffer.get(oldIndex2 * 3 + 1));
                        newVerticesBuffer.putFloat(verticesFloatBuffer.get(oldIndex2 * 3 + 2));
                        newVerticesBuffer.putFloat(verticesFloatBuffer.get(oldIndex3 * 3));
                        newVerticesBuffer.putFloat(verticesFloatBuffer.get(oldIndex3 * 3 + 1));
                        newVerticesBuffer.putFloat(verticesFloatBuffer.get(oldIndex3 * 3 + 2));
                    }
                    for (int i = part * maxIndexValues; i < upto; i += 3) {
                        int oldIndex1 = indicesIntBuffer.get(i);
                        int oldIndex2 = indicesIntBuffer.get(i + 1);
                        int oldIndex3 = indicesIntBuffer.get(i + 2);
                        newNormalsBuffer.putFloat(normalsFloatBuffer.get(oldIndex1 * 3));
                        newNormalsBuffer.putFloat(normalsFloatBuffer.get(oldIndex1 * 3 + 1));
                        newNormalsBuffer.putFloat(normalsFloatBuffer.get(oldIndex1 * 3 + 2));
                        newNormalsBuffer.putFloat(normalsFloatBuffer.get(oldIndex2 * 3));
                        newNormalsBuffer.putFloat(normalsFloatBuffer.get(oldIndex2 * 3 + 1));
                        newNormalsBuffer.putFloat(normalsFloatBuffer.get(oldIndex2 * 3 + 2));
                        newNormalsBuffer.putFloat(normalsFloatBuffer.get(oldIndex3 * 3));
                        newNormalsBuffer.putFloat(normalsFloatBuffer.get(oldIndex3 * 3 + 1));
                        newNormalsBuffer.putFloat(normalsFloatBuffer.get(oldIndex3 * 3 + 2));
                    }
                    if (materialsFloatBuffer != null) {
                        for (int i = part * maxIndexValues; i < upto; i += 3) {
                            int oldIndex1 = indicesIntBuffer.get(i);
                            int oldIndex2 = indicesIntBuffer.get(i + 1);
                            int oldIndex3 = indicesIntBuffer.get(i + 2);
                            newColorsBuffer.putFloat(materialsFloatBuffer.get(oldIndex1 * 4));
                            newColorsBuffer.putFloat(materialsFloatBuffer.get(oldIndex1 * 4 + 1));
                            newColorsBuffer.putFloat(materialsFloatBuffer.get(oldIndex1 * 4 + 2));
                            newColorsBuffer.putFloat(materialsFloatBuffer.get(oldIndex1 * 4 + 3));
                            newColorsBuffer.putFloat(materialsFloatBuffer.get(oldIndex2 * 4));
                            newColorsBuffer.putFloat(materialsFloatBuffer.get(oldIndex2 * 4 + 1));
                            newColorsBuffer.putFloat(materialsFloatBuffer.get(oldIndex2 * 4 + 2));
                            newColorsBuffer.putFloat(materialsFloatBuffer.get(oldIndex2 * 4 + 3));
                            newColorsBuffer.putFloat(materialsFloatBuffer.get(oldIndex3 * 4));
                            newColorsBuffer.putFloat(materialsFloatBuffer.get(oldIndex3 * 4 + 1));
                            newColorsBuffer.putFloat(materialsFloatBuffer.get(oldIndex3 * 4 + 2));
                            newColorsBuffer.putFloat(materialsFloatBuffer.get(oldIndex3 * 4 + 3));
                        }
                    }
                    ObjectNode primitiveNode = OBJECT_MAPPER.createObjectNode();
                    String indicesAccessor = addIndicesAccessor(ifcProduct, indicesBufferView, startPositionIndices, nrVertices / 3);
                    String verticesAccessor = addVerticesAccessor(ifcProduct, verticesBufferView, startPositionVertices, nrVertices);
                    String normalsAccessor = addNormalsAccessor(ifcProduct, normalsBufferView, startPositionNormals, nrVertices);
                    String colorAccessor = null;
                    if (data.getMaterials() != null) {
                        if (colorsBufferView == null) {
                            colorsBufferView = createBufferView(totalColorsByteLength, totalIndicesByteLength + totalVerticesByteLength + totalNormalsByteLength, ARRAY_BUFFER);
                        }
                        colorAccessor = addColorsAccessor(ifcProduct, colorsBufferView, startPositionColors, nrVertices * 4 / 3);
                    }
                    primitivesNode.add(primitiveNode);
                    primitiveNode.put("indices", indicesAccessor);
                    primitiveNode.put("mode", TRIANGLES);
                    ObjectNode attributesNode = OBJECT_MAPPER.createObjectNode();
                    primitiveNode.set("attributes", attributesNode);
                    attributesNode.put("NORMAL", normalsAccessor);
                    attributesNode.put("POSITION", verticesAccessor);
                    if (colorAccessor != null) {
                        attributesNode.put("COLOR", colorAccessor);
                        primitiveNode.put("material", VERTEX_COLOR_MATERIAL);
                    } else {
                        primitiveNode.put("material", createOrGetMaterial(ifcProduct.eClass().getName(), IfcColors.getDefaultColor(ifcProduct.eClass().getName())));
                    }
                }
                String meshName = addMesh(ifcProduct, primitivesNode);
                String nodeName = addNode(meshName, ifcProduct);
                translationChildrenNode.add(nodeName);
            } else {
                for (int i = 0; i < indicesIntBuffer.capacity(); i++) {
                    int index = indicesIntBuffer.get(i);
                    if (index > Short.MAX_VALUE) {
                        throw new SerializerException("Index too large to store as short " + index);
                    }
                    newIndicesBuffer.putShort((short) (index));
                }
                newVerticesBuffer.put(data.getVertices());
                newNormalsBuffer.put(data.getNormals());
                if (data.getMaterials() != null) {
                    newColorsBuffer.put(data.getMaterials());
                }
                int totalNrIndices = indicesIntBuffer.capacity();
                ArrayNode primitivesNode = OBJECT_MAPPER.createArrayNode();
                ObjectNode primitiveNode = OBJECT_MAPPER.createObjectNode();
                String indicesAccessor = addIndicesAccessor(ifcProduct, indicesBufferView, startPositionIndices, totalNrIndices);
                String verticesAccessor = addVerticesAccessor(ifcProduct, verticesBufferView, startPositionVertices, data.getVertices().length / 4);
                String normalsAccessor = addNormalsAccessor(ifcProduct, normalsBufferView, startPositionNormals, data.getNormals().length / 4);
                String colorAccessor = null;
                if (data.getMaterials() != null) {
                    if (colorsBufferView == null) {
                        colorsBufferView = createBufferView(totalColorsByteLength, totalIndicesByteLength + totalVerticesByteLength + totalNormalsByteLength, ARRAY_BUFFER);
                    }
                    colorAccessor = addColorsAccessor(ifcProduct, colorsBufferView, startPositionColors, data.getVertices().length / 4);
                }
                primitivesNode.add(primitiveNode);
                primitiveNode.put("indices", indicesAccessor);
                primitiveNode.put("mode", TRIANGLES);
                ObjectNode attributesNode = OBJECT_MAPPER.createObjectNode();
                primitiveNode.set("attributes", attributesNode);
                attributesNode.put("NORMAL", normalsAccessor);
                attributesNode.put("POSITION", verticesAccessor);
                if (colorAccessor != null) {
                    attributesNode.put("COLOR", colorAccessor);
                    primitiveNode.put("material", VERTEX_COLOR_MATERIAL);
                } else {
                    primitiveNode.put("material", createOrGetMaterial(ifcProduct.eClass().getName(), IfcColors.getDefaultColor(ifcProduct.eClass().getName())));
                }
                String meshName = addMesh(ifcProduct, primitivesNode);
                String nodeName = addNode(meshName, ifcProduct);
                translationChildrenNode.add(nodeName);
            }
        }
    }
    if (newIndicesBuffer.position() != newIndicesBuffer.capacity()) {
        throw new SerializerException("Not all space used");
    }
    if (newVerticesBuffer.position() != newVerticesBuffer.capacity()) {
        throw new SerializerException("Not all space used");
    }
    if (newNormalsBuffer.position() != newNormalsBuffer.capacity()) {
        throw new SerializerException("Not all space used");
    }
    if (newColorsBuffer.position() != newColorsBuffer.capacity()) {
        throw new SerializerException("Not all space used");
    }
    newIndicesBuffer.position(0);
    newVerticesBuffer.position(0);
    newNormalsBuffer.position(0);
    newColorsBuffer.position(0);
    body.put(newIndicesBuffer);
    body.put(newVerticesBuffer);
    body.put(newNormalsBuffer);
    body.put(newColorsBuffer);
    String vertexColorFragmentShaderBufferViewName = createBufferView(vertexColorFragmentShaderBytes.length, body.position());
    body.put(vertexColorFragmentShaderBytes);
    String vertexColorVertexShaderBufferViewName = createBufferView(vertexColorVertexShaderBytes.length, body.position());
    body.put(vertexColorVertexShaderBytes);
    String materialColorFragmentShaderBufferViewName = createBufferView(materialColorFragmentShaderBytes.length, body.position());
    body.put(materialColorFragmentShaderBytes);
    String materialColorVertexShaderBufferViewName = createBufferView(materialColorVertexShaderBytes.length, body.position());
    body.put(materialColorVertexShaderBytes);
    gltfNode.set("animations", createAnimations());
    gltfNode.set("asset", createAsset());
    gltfNode.set("programs", createPrograms());
    gltfNode.put("scene", "defaultScene");
    gltfNode.set("skins", createSkins());
    gltfNode.set("techniques", createTechniques());
    createVertexColorShaders(vertexColorFragmentShaderBufferViewName, vertexColorVertexShaderBufferViewName);
    createMaterialColorShaders(materialColorFragmentShaderBufferViewName, materialColorVertexShaderBufferViewName);
    addBuffer("binary_glTF", "arraybuffer", body.capacity());
    ArrayNode extensions = OBJECT_MAPPER.createArrayNode();
    extensions.add("KHR_binary_glTF");
    gltfNode.set("extensionsUsed", extensions);
}