Examples with Structure com.jme3.scene.plugins.blender.file.Structure used on opensource projects

Example 21 with Structure

use of com.jme3.scene.plugins.blender.file.Structure in project jmonkeyengine by jMonkeyEngine.

the class CurvesTemporalMesh method loadNurbSurface.

/**
     * This method loads the NURBS curve or surface.
     * @param nurb
     *            the NURBS data structure
     * @throws BlenderFileException
     *             an exception is thrown when problems with reading occur
     */
@SuppressWarnings("unchecked")
private void loadNurbSurface(Structure nurb, int materialIndex) throws BlenderFileException {
    // loading the knots
    List<Float>[] knots = new List[2];
    Pointer[] pKnots = new Pointer[] { (Pointer) nurb.getFieldValue("knotsu"), (Pointer) nurb.getFieldValue("knotsv") };
    for (int i = 0; i < knots.length; ++i) {
        if (pKnots[i].isNotNull()) {
            FileBlockHeader fileBlockHeader = blenderContext.getFileBlock(pKnots[i].getOldMemoryAddress());
            BlenderInputStream blenderInputStream = blenderContext.getInputStream();
            blenderInputStream.setPosition(fileBlockHeader.getBlockPosition());
            int knotsAmount = fileBlockHeader.getCount() * fileBlockHeader.getSize() / 4;
            knots[i] = new ArrayList<Float>(knotsAmount);
            for (int j = 0; j < knotsAmount; ++j) {
                knots[i].add(Float.valueOf(blenderInputStream.readFloat()));
            }
        }
    }
    // loading the flags and orders (basis functions degrees)
    int flag = ((Number) nurb.getFieldValue("flag")).intValue();
    boolean smooth = (flag & FLAG_SMOOTH) != 0;
    int flagU = ((Number) nurb.getFieldValue("flagu")).intValue();
    int flagV = ((Number) nurb.getFieldValue("flagv")).intValue();
    int orderU = ((Number) nurb.getFieldValue("orderu")).intValue();
    int orderV = ((Number) nurb.getFieldValue("orderv")).intValue();
    // loading control points and their weights
    int pntsU = ((Number) nurb.getFieldValue("pntsu")).intValue();
    int pntsV = ((Number) nurb.getFieldValue("pntsv")).intValue();
    List<Structure> bPoints = ((Pointer) nurb.getFieldValue("bp")).fetchData();
    List<List<Vector4f>> controlPoints = new ArrayList<List<Vector4f>>(pntsV);
    for (int i = 0; i < pntsV; ++i) {
        List<Vector4f> uControlPoints = new ArrayList<Vector4f>(pntsU);
        for (int j = 0; j < pntsU; ++j) {
            DynamicArray<Float> vec = (DynamicArray<Float>) bPoints.get(j + i * pntsU).getFieldValue("vec");
            if (blenderContext.getBlenderKey().isFixUpAxis()) {
                uControlPoints.add(new Vector4f(vec.get(0).floatValue(), vec.get(2).floatValue(), -vec.get(1).floatValue(), vec.get(3).floatValue()));
            } else {
                uControlPoints.add(new Vector4f(vec.get(0).floatValue(), vec.get(1).floatValue(), vec.get(2).floatValue(), vec.get(3).floatValue()));
            }
        }
        if ((flagU & 0x01) != 0) {
            for (int k = 0; k < orderU - 1; ++k) {
                uControlPoints.add(uControlPoints.get(k));
            }
        }
        controlPoints.add(uControlPoints);
    }
    if ((flagV & 0x01) != 0) {
        for (int k = 0; k < orderV - 1; ++k) {
            controlPoints.add(controlPoints.get(k));
        }
    }
    int originalVerticesAmount = vertices.size();
    int resolu = ((Number) nurb.getFieldValue("resolu")).intValue();
    if (knots[1] == null) {
        // creating the NURB curve
        Curve curve = new Curve(new Spline(controlPoints.get(0), knots[0]), resolu);
        FloatBuffer vertsBuffer = (FloatBuffer) curve.getBuffer(Type.Position).getData();
        beziers.add(new BezierLine(BufferUtils.getVector3Array(vertsBuffer), materialIndex, smooth, false));
    } else {
        // creating the NURB surface
        int resolv = ((Number) nurb.getFieldValue("resolv")).intValue();
        int uSegments = resolu * controlPoints.get(0).size() - 1;
        int vSegments = resolv * controlPoints.size() - 1;
        Surface nurbSurface = Surface.createNurbsSurface(controlPoints, knots, uSegments, vSegments, orderU, orderV, smooth);
        FloatBuffer vertsBuffer = (FloatBuffer) nurbSurface.getBuffer(Type.Position).getData();
        vertices.addAll(Arrays.asList(BufferUtils.getVector3Array(vertsBuffer)));
        FloatBuffer normalsBuffer = (FloatBuffer) nurbSurface.getBuffer(Type.Normal).getData();
        normals.addAll(Arrays.asList(BufferUtils.getVector3Array(normalsBuffer)));
        IndexBuffer indexBuffer = nurbSurface.getIndexBuffer();
        for (int i = 0; i < indexBuffer.size(); i += 3) {
            int index1 = indexBuffer.get(i) + originalVerticesAmount;
            int index2 = indexBuffer.get(i + 1) + originalVerticesAmount;
            int index3 = indexBuffer.get(i + 2) + originalVerticesAmount;
            faces.add(new Face(new Integer[] { index1, index2, index3 }, smooth, materialIndex, null, null, this));
        }
    }
}

Example 22 with Structure

use of com.jme3.scene.plugins.blender.file.Structure in project jmonkeyengine by jMonkeyEngine.

the class Field method fill.

/**
     * This method fills the field wth data read from the input stream.
     * @param blenderInputStream
     *            the stream we read data from
     * @throws BlenderFileException
     *             an exception is thrown when the blend file is somehow invalid or corrupted
     */
public void fill(BlenderInputStream blenderInputStream) throws BlenderFileException {
    int dataToRead = 1;
    if (tableSizes != null && tableSizes.length > 0) {
        for (int size : tableSizes) {
            if (size <= 0) {
                throw new BlenderFileException("The field " + name + " has invalid table size: " + size);
            }
            dataToRead *= size;
        }
    }
    DataType dataType = pointerLevel == 0 ? DataType.getDataType(type, blenderContext) : DataType.POINTER;
    switch(dataType) {
        case POINTER:
            if (dataToRead == 1) {
                Pointer pointer = new Pointer(pointerLevel, function, blenderContext);
                pointer.fill(blenderInputStream);
                value = pointer;
            } else {
                Pointer[] data = new Pointer[dataToRead];
                for (int i = 0; i < dataToRead; ++i) {
                    Pointer pointer = new Pointer(pointerLevel, function, blenderContext);
                    pointer.fill(blenderInputStream);
                    data[i] = pointer;
                }
                value = new DynamicArray<Pointer>(tableSizes, data);
            }
            break;
        case CHARACTER:
            // and characters are very often used as byte number stores instead of real chars
            if (dataToRead == 1) {
                value = Byte.valueOf((byte) blenderInputStream.readByte());
            } else {
                Character[] data = new Character[dataToRead];
                for (int i = 0; i < dataToRead; ++i) {
                    data[i] = Character.valueOf((char) blenderInputStream.readByte());
                }
                value = new DynamicArray<Character>(tableSizes, data);
            }
            break;
        case SHORT:
            if (dataToRead == 1) {
                value = Integer.valueOf(blenderInputStream.readShort());
            } else {
                Number[] data = new Number[dataToRead];
                for (int i = 0; i < dataToRead; ++i) {
                    data[i] = Integer.valueOf(blenderInputStream.readShort());
                }
                value = new DynamicArray<Number>(tableSizes, data);
            }
            break;
        case INTEGER:
            if (dataToRead == 1) {
                value = Integer.valueOf(blenderInputStream.readInt());
            } else {
                Number[] data = new Number[dataToRead];
                for (int i = 0; i < dataToRead; ++i) {
                    data[i] = Integer.valueOf(blenderInputStream.readInt());
                }
                value = new DynamicArray<Number>(tableSizes, data);
            }
            break;
        case LONG:
            if (dataToRead == 1) {
                value = Long.valueOf(blenderInputStream.readLong());
            } else {
                Number[] data = new Number[dataToRead];
                for (int i = 0; i < dataToRead; ++i) {
                    data[i] = Long.valueOf(blenderInputStream.readLong());
                }
                value = new DynamicArray<Number>(tableSizes, data);
            }
            break;
        case FLOAT:
            if (dataToRead == 1) {
                value = Float.valueOf(blenderInputStream.readFloat());
            } else {
                Number[] data = new Number[dataToRead];
                for (int i = 0; i < dataToRead; ++i) {
                    data[i] = Float.valueOf(blenderInputStream.readFloat());
                }
                value = new DynamicArray<Number>(tableSizes, data);
            }
            break;
        case DOUBLE:
            if (dataToRead == 1) {
                value = Double.valueOf(blenderInputStream.readDouble());
            } else {
                Number[] data = new Number[dataToRead];
                for (int i = 0; i < dataToRead; ++i) {
                    data[i] = Double.valueOf(blenderInputStream.readDouble());
                }
                value = new DynamicArray<Number>(tableSizes, data);
            }
            break;
        case VOID:
            break;
        case STRUCTURE:
            if (dataToRead == 1) {
                Structure structure = blenderContext.getDnaBlockData().getStructure(type);
                structure.fill(blenderContext.getInputStream());
                value = structure;
            } else {
                Structure[] data = new Structure[dataToRead];
                for (int i = 0; i < dataToRead; ++i) {
                    Structure structure = blenderContext.getDnaBlockData().getStructure(type);
                    structure.fill(blenderContext.getInputStream());
                    data[i] = structure;
                }
                value = new DynamicArray<Structure>(tableSizes, data);
            }
            break;
        default:
            throw new IllegalStateException("Unimplemented filling of type: " + type);
    }
}

Example 23 with Structure

use of com.jme3.scene.plugins.blender.file.Structure in project jmonkeyengine by jMonkeyEngine.

the class LandscapeHelper method toFog.

/**
     * The method loads fog for the scene.
     * NOTICE! Remember to manually set the distance and density of the fog.
     * Unfortunately blender's fog parameters in no way fit to the JME.
     * @param worldStructure
     *            the world's structure
     * @return fog filter or null if scene does not define it
     */
public FogFilter toFog(Structure worldStructure) {
    FogFilter result = null;
    int mode = ((Number) worldStructure.getFieldValue("mode")).intValue();
    if ((mode & MODE_MIST) != 0) {
        LOGGER.fine("Loading fog.");
        result = new FogFilter();
        result.setName("FIfog");
        result.setFogColor(this.toBackgroundColor(worldStructure));
    }
    return result;
}

Example 24 with Structure

use of com.jme3.scene.plugins.blender.file.Structure in project jmonkeyengine by jMonkeyEngine.

the class LandscapeHelper method toSky.

/**
     * Loads scene's sky. Sky can be plain or textured.
     * If no sky type is selected in blender then no sky is loaded.
     * @param worldStructure
     *            the world's structure
     * @return the scene's sky
     * @throws BlenderFileException
     *             blender exception is thrown when problems with blender file occur
     */
public Spatial toSky(Structure worldStructure) throws BlenderFileException {
    int skytype = ((Number) worldStructure.getFieldValue("skytype")).intValue();
    if (skytype == 0) {
        return null;
    }
    LOGGER.fine("Loading sky.");
    ColorRGBA horizontalColor = this.toBackgroundColor(worldStructure);
    float zenr = ((Number) worldStructure.getFieldValue("zenr")).floatValue();
    float zeng = ((Number) worldStructure.getFieldValue("zeng")).floatValue();
    float zenb = ((Number) worldStructure.getFieldValue("zenb")).floatValue();
    ColorRGBA zenithColor = new ColorRGBA(zenr, zeng, zenb, 1);
    // jutr for this case load generated textures wheather user had set it or not because those might be needed to properly load the sky
    boolean loadGeneratedTextures = blenderContext.getBlenderKey().isLoadGeneratedTextures();
    blenderContext.getBlenderKey().setLoadGeneratedTextures(true);
    TextureHelper textureHelper = blenderContext.getHelper(TextureHelper.class);
    List<CombinedTexture> loadedTextures = null;
    try {
        loadedTextures = textureHelper.readTextureData(worldStructure, new float[] { horizontalColor.r, horizontalColor.g, horizontalColor.b, horizontalColor.a }, true);
    } finally {
        blenderContext.getBlenderKey().setLoadGeneratedTextures(loadGeneratedTextures);
    }
    TextureCubeMap texture = null;
    if (loadedTextures != null && loadedTextures.size() > 0) {
        if (loadedTextures.size() > 1) {
            throw new IllegalStateException("There should be only one combined texture for sky!");
        }
        CombinedTexture combinedTexture = loadedTextures.get(0);
        texture = combinedTexture.generateSkyTexture(horizontalColor, zenithColor, blenderContext);
    } else {
        LOGGER.fine("Preparing colors for colorband.");
        int colorbandType = ColorBand.IPO_CARDINAL;
        List<ColorRGBA> colorbandColors = new ArrayList<ColorRGBA>(3);
        colorbandColors.add(horizontalColor);
        if ((skytype & SKYTYPE_BLEND) != 0) {
            if ((skytype & SKYTYPE_PAPER) != 0) {
                colorbandType = ColorBand.IPO_LINEAR;
            }
            if ((skytype & SKYTYPE_REAL) != 0) {
                colorbandColors.add(0, zenithColor);
            }
            colorbandColors.add(zenithColor);
        }
        int size = blenderContext.getBlenderKey().getSkyGeneratedTextureSize();
        List<Integer> positions = new ArrayList<Integer>(colorbandColors.size());
        positions.add(0);
        if (colorbandColors.size() == 2) {
            positions.add(size - 1);
        } else if (colorbandColors.size() == 3) {
            positions.add(size / 2);
            positions.add(size - 1);
        }
        LOGGER.fine("Generating sky texture.");
        float[][] values = new ColorBand(colorbandType, colorbandColors, positions, size).computeValues();
        Image image = ImageUtils.createEmptyImage(Format.RGB8, size, size, 6);
        PixelInputOutput pixelIO = PixelIOFactory.getPixelIO(image.getFormat());
        TexturePixel pixel = new TexturePixel();
        LOGGER.fine("Creating side textures.");
        int[] sideImagesIndexes = new int[] { 0, 1, 4, 5 };
        for (int i : sideImagesIndexes) {
            for (int y = 0; y < size; ++y) {
                pixel.red = values[y][0];
                pixel.green = values[y][1];
                pixel.blue = values[y][2];
                for (int x = 0; x < size; ++x) {
                    pixelIO.write(image, i, pixel, x, y);
                }
            }
        }
        LOGGER.fine("Creating top texture.");
        pixelIO.read(image, 0, pixel, 0, image.getHeight() - 1);
        for (int y = 0; y < size; ++y) {
            for (int x = 0; x < size; ++x) {
                pixelIO.write(image, 3, pixel, x, y);
            }
        }
        LOGGER.fine("Creating bottom texture.");
        pixelIO.read(image, 0, pixel, 0, 0);
        for (int y = 0; y < size; ++y) {
            for (int x = 0; x < size; ++x) {
                pixelIO.write(image, 2, pixel, x, y);
            }
        }
        texture = new TextureCubeMap(image);
    }
    LOGGER.fine("Sky texture created. Creating sky.");
    return SkyFactory.createSky(blenderContext.getAssetManager(), texture, SkyFactory.EnvMapType.CubeMap);
}

Example 25 with Structure

use of com.jme3.scene.plugins.blender.file.Structure in project jmonkeyengine by jMonkeyEngine.

the class LandscapeHelper method toAmbientLight.

/**
     * Loads scene ambient light.
     * @param worldStructure
     *            the world's blender structure
     * @return the scene's ambient light
     */
public Light toAmbientLight(Structure worldStructure) {
    LOGGER.fine("Loading ambient light.");
    AmbientLight ambientLight = null;
    float ambr = ((Number) worldStructure.getFieldValue("ambr")).floatValue();
    float ambg = ((Number) worldStructure.getFieldValue("ambg")).floatValue();
    float ambb = ((Number) worldStructure.getFieldValue("ambb")).floatValue();
    if (ambr > 0 || ambg > 0 || ambb > 0) {
        ambientLight = new AmbientLight();
        ColorRGBA ambientLightColor = new ColorRGBA(ambr, ambg, ambb, 0.0f);
        ambientLight.setColor(ambientLightColor);
        LOGGER.log(Level.FINE, "Loaded ambient light: {0}.", ambientLightColor);
    } else {
        LOGGER.finer("Ambient light is set to BLACK which means: no ambient light! The ambient light node will not be included in the result.");
    }
    return ambientLight;
}