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

Example 6 with Geometry

use of com.jme3.scene.Geometry in project jmonkeyengine by jMonkeyEngine.

the class GeometryBatchFactory method mergeGeometries.

/**
     * Merges all geometries in the collection into
     * the output mesh. Creates a new material using the TextureAtlas.
     * 
     * @param geometries
     * @param outMesh
     */
public static void mergeGeometries(Collection<Geometry> geometries, Mesh outMesh) {
    int[] compsForBuf = new int[VertexBuffer.Type.values().length];
    Format[] formatForBuf = new Format[compsForBuf.length];
    boolean[] normForBuf = new boolean[VertexBuffer.Type.values().length];
    int totalVerts = 0;
    int totalTris = 0;
    int totalLodLevels = 0;
    int maxWeights = -1;
    Mode mode = null;
    for (Geometry geom : geometries) {
        totalVerts += geom.getVertexCount();
        totalTris += geom.getTriangleCount();
        totalLodLevels = Math.min(totalLodLevels, geom.getMesh().getNumLodLevels());
        Mode listMode;
        int components;
        switch(geom.getMesh().getMode()) {
            case Points:
                listMode = Mode.Points;
                components = 0;
                break;
            case LineLoop:
            case LineStrip:
            case Lines:
                listMode = Mode.Lines;
                components = 2;
                break;
            case TriangleFan:
            case TriangleStrip:
            case Triangles:
                listMode = Mode.Triangles;
                components = 3;
                break;
            default:
                throw new UnsupportedOperationException();
        }
        for (VertexBuffer vb : geom.getMesh().getBufferList().getArray()) {
            int currentCompsForBuf = compsForBuf[vb.getBufferType().ordinal()];
            if (vb.getBufferType() != Type.Index && currentCompsForBuf != 0 && currentCompsForBuf != vb.getNumComponents()) {
                throw new UnsupportedOperationException("The geometry " + geom + " buffer " + vb.getBufferType() + " has different number of components than the rest of the meshes " + "(this: " + vb.getNumComponents() + ", expected: " + currentCompsForBuf + ")");
            }
            compsForBuf[vb.getBufferType().ordinal()] = vb.getNumComponents();
            formatForBuf[vb.getBufferType().ordinal()] = vb.getFormat();
            normForBuf[vb.getBufferType().ordinal()] = vb.isNormalized();
        }
        maxWeights = Math.max(maxWeights, geom.getMesh().getMaxNumWeights());
        if (mode != null && mode != listMode) {
            throw new UnsupportedOperationException("Cannot combine different" + " primitive types: " + mode + " != " + listMode);
        }
        mode = listMode;
        compsForBuf[Type.Index.ordinal()] = components;
    }
    outMesh.setMaxNumWeights(maxWeights);
    outMesh.setMode(mode);
    if (totalVerts >= 65536) {
        // make sure we create an UnsignedInt buffer so
        // we can fit all of the meshes
        formatForBuf[Type.Index.ordinal()] = Format.UnsignedInt;
    } else {
        formatForBuf[Type.Index.ordinal()] = Format.UnsignedShort;
    }
    // generate output buffers based on retrieved info
    for (int i = 0; i < compsForBuf.length; i++) {
        if (compsForBuf[i] == 0) {
            continue;
        }
        Buffer data;
        if (i == Type.Index.ordinal()) {
            data = VertexBuffer.createBuffer(formatForBuf[i], compsForBuf[i], totalTris);
        } else {
            data = VertexBuffer.createBuffer(formatForBuf[i], compsForBuf[i], totalVerts);
        }
        VertexBuffer vb = new VertexBuffer(Type.values()[i]);
        vb.setupData(Usage.Static, compsForBuf[i], formatForBuf[i], data);
        vb.setNormalized(normForBuf[i]);
        outMesh.setBuffer(vb);
    }
    int globalVertIndex = 0;
    int globalTriIndex = 0;
    for (Geometry geom : geometries) {
        Mesh inMesh = geom.getMesh();
        geom.computeWorldMatrix();
        Matrix4f worldMatrix = geom.getWorldMatrix();
        int geomVertCount = inMesh.getVertexCount();
        int geomTriCount = inMesh.getTriangleCount();
        for (int bufType = 0; bufType < compsForBuf.length; bufType++) {
            VertexBuffer inBuf = inMesh.getBuffer(Type.values()[bufType]);
            VertexBuffer outBuf = outMesh.getBuffer(Type.values()[bufType]);
            if (inBuf == null || outBuf == null) {
                continue;
            }
            if (Type.Index.ordinal() == bufType) {
                int components = compsForBuf[bufType];
                IndexBuffer inIdx = inMesh.getIndicesAsList();
                IndexBuffer outIdx = outMesh.getIndexBuffer();
                for (int tri = 0; tri < geomTriCount; tri++) {
                    for (int comp = 0; comp < components; comp++) {
                        int idx = inIdx.get(tri * components + comp) + globalVertIndex;
                        outIdx.put((globalTriIndex + tri) * components + comp, idx);
                    }
                }
            } else if (Type.Position.ordinal() == bufType) {
                FloatBuffer inPos = (FloatBuffer) inBuf.getDataReadOnly();
                FloatBuffer outPos = (FloatBuffer) outBuf.getData();
                doTransformVerts(inPos, globalVertIndex, outPos, worldMatrix);
            } else if (Type.Normal.ordinal() == bufType) {
                FloatBuffer inPos = (FloatBuffer) inBuf.getDataReadOnly();
                FloatBuffer outPos = (FloatBuffer) outBuf.getData();
                doTransformNorms(inPos, globalVertIndex, outPos, worldMatrix);
            } else if (Type.Tangent.ordinal() == bufType) {
                FloatBuffer inPos = (FloatBuffer) inBuf.getDataReadOnly();
                FloatBuffer outPos = (FloatBuffer) outBuf.getData();
                int components = inBuf.getNumComponents();
                doTransformTangents(inPos, globalVertIndex, components, outPos, worldMatrix);
            } else {
                inBuf.copyElements(0, outBuf, globalVertIndex, geomVertCount);
            }
        }
        globalVertIndex += geomVertCount;
        globalTriIndex += geomTriCount;
    }
}

Example 7 with Geometry

use of com.jme3.scene.Geometry in project jmonkeyengine by jMonkeyEngine.

the class GeometryBatchFactory method alignBuffers.

/**
     * Will ensure that all the geometries' meshes of the n sub graph have the 
     * same types of buffers
     * @param n the node to gather geometries from
     * @param option the align options 
     * @see AlignOption
     * 
     * Very experimental for now.
     */
public static void alignBuffers(Node n, AlignOption option) {
    List<Geometry> geoms = new ArrayList<Geometry>();
    gatherGeoms(n, geoms);
    //gather buffer types
    Map<VertexBuffer.Type, VertexBuffer> types = new EnumMap<VertexBuffer.Type, VertexBuffer>(VertexBuffer.Type.class);
    Map<VertexBuffer.Type, Integer> typesCount = new EnumMap<VertexBuffer.Type, Integer>(VertexBuffer.Type.class);
    for (Geometry geom : geoms) {
        for (VertexBuffer buffer : geom.getMesh().getBufferList()) {
            if (types.get(buffer.getBufferType()) == null) {
                types.put(buffer.getBufferType(), buffer);
                logger.log(Level.FINE, buffer.getBufferType().toString());
            }
            Integer count = typesCount.get(buffer.getBufferType());
            if (count == null) {
                count = 0;
            }
            count++;
            typesCount.put(buffer.getBufferType(), count);
        }
    }
    switch(option) {
        case RemoveUnalignedBuffers:
            for (Geometry geom : geoms) {
                for (VertexBuffer buffer : geom.getMesh().getBufferList()) {
                    Integer count = typesCount.get(buffer.getBufferType());
                    if (count != null && count < geoms.size()) {
                        geom.getMesh().clearBuffer(buffer.getBufferType());
                        logger.log(Level.FINE, "removing {0} from {1}", new Object[] { buffer.getBufferType(), geom.getName() });
                    }
                }
            }
            break;
        case CreateMissingBuffers:
            for (Geometry geom : geoms) {
                for (VertexBuffer.Type type : types.keySet()) {
                    if (geom.getMesh().getBuffer(type) == null) {
                        VertexBuffer vb = new VertexBuffer(type);
                        Buffer b;
                        switch(type) {
                            case Index:
                            case BoneIndex:
                            case HWBoneIndex:
                                b = BufferUtils.createIntBuffer(geom.getMesh().getVertexCount() * types.get(type).getNumComponents());
                                break;
                            case InterleavedData:
                                b = BufferUtils.createByteBuffer(geom.getMesh().getVertexCount() * types.get(type).getNumComponents());
                                break;
                            default:
                                b = BufferUtils.createFloatBuffer(geom.getMesh().getVertexCount() * types.get(type).getNumComponents());
                        }
                        vb.setupData(types.get(type).getUsage(), types.get(type).getNumComponents(), types.get(type).getFormat(), b);
                        geom.getMesh().setBuffer(vb);
                        logger.log(Level.FINE, "geom {0} misses buffer {1}. Creating", new Object[] { geom.getName(), type });
                    }
                }
            }
            break;
    }
}

Example 8 with Geometry

use of com.jme3.scene.Geometry in project jmonkeyengine by jMonkeyEngine.

the class TextureAtlas method applyAtlasCoords.

private static void applyAtlasCoords(List<Geometry> geometries, Mesh outMesh, TextureAtlas atlas) {
    int globalVertIndex = 0;
    for (Geometry geom : geometries) {
        Mesh inMesh = geom.getMesh();
        geom.computeWorldMatrix();
        int geomVertCount = inMesh.getVertexCount();
        VertexBuffer inBuf = inMesh.getBuffer(Type.TexCoord);
        VertexBuffer outBuf = outMesh.getBuffer(Type.TexCoord);
        if (inBuf == null || outBuf == null) {
            continue;
        }
        atlas.applyCoords(geom, globalVertIndex, outMesh);
        globalVertIndex += geomVertCount;
    }
}

Example 9 with Geometry

use of com.jme3.scene.Geometry in project jmonkeyengine by jMonkeyEngine.

the class TextureAtlas method applyCoords.

/**
     * Applies the texture coordinates to the given output mesh
     * if the DiffuseMap or ColorMap of the input geometry exist in the atlas.
     * @param geom The geometry to change the texture coordinate buffer on.
     * @param offset Target buffer offset.
     * @param outMesh The mesh to set the coords in (can be same as input).
     * @return true if texture has been found and coords have been changed, false otherwise.
     */
public boolean applyCoords(Geometry geom, int offset, Mesh outMesh) {
    Mesh inMesh = geom.getMesh();
    geom.computeWorldMatrix();
    VertexBuffer inBuf = inMesh.getBuffer(Type.TexCoord);
    VertexBuffer outBuf = outMesh.getBuffer(Type.TexCoord);
    if (inBuf == null || outBuf == null) {
        throw new IllegalStateException("Geometry mesh has no texture coordinate buffer.");
    }
    Texture tex = getMaterialTexture(geom, "DiffuseMap");
    if (tex == null) {
        tex = getMaterialTexture(geom, "ColorMap");
    }
    if (tex != null) {
        TextureAtlasTile tile = getAtlasTile(tex);
        if (tile != null) {
            FloatBuffer inPos = (FloatBuffer) inBuf.getData();
            FloatBuffer outPos = (FloatBuffer) outBuf.getData();
            tile.transformTextureCoords(inPos, offset, outPos);
            return true;
        } else {
            return false;
        }
    } else {
        throw new IllegalStateException("Geometry has no proper texture.");
    }
}

Example 10 with Geometry

use of com.jme3.scene.Geometry in project jmonkeyengine by jMonkeyEngine.

the class TextureAtlas method makeAtlasBatch.

/**
     * Creates one geometry out of the given root spatial and merges all single
     * textures into one texture of the given size.
     * @param spat The root spatial of the scene to batch
     * @param mgr An assetmanager that can be used to create the material.
     * @param atlasSize A size for the atlas texture, it has to be large enough to hold all single textures.
     * @return A new geometry that uses the generated texture atlas and merges all meshes of the root spatial, null if the atlas cannot be created because not all textures fit.
     */
public static Geometry makeAtlasBatch(Spatial spat, AssetManager mgr, int atlasSize) {
    List<Geometry> geometries = new ArrayList<Geometry>();
    GeometryBatchFactory.gatherGeoms(spat, geometries);
    TextureAtlas atlas = createAtlas(spat, atlasSize);
    if (atlas == null) {
        return null;
    }
    Geometry geom = new Geometry();
    Mesh mesh = new Mesh();
    GeometryBatchFactory.mergeGeometries(geometries, mesh);
    applyAtlasCoords(geometries, mesh, atlas);
    mesh.updateCounts();
    mesh.updateBound();
    geom.setMesh(mesh);
    Material mat = new Material(mgr, "Common/MatDefs/Light/Lighting.j3md");
    Texture diffuseMap = atlas.getAtlasTexture("DiffuseMap");
    Texture normalMap = atlas.getAtlasTexture("NormalMap");
    Texture specularMap = atlas.getAtlasTexture("SpecularMap");
    if (diffuseMap != null) {
        mat.setTexture("DiffuseMap", diffuseMap);
    }
    if (normalMap != null) {
        mat.setTexture("NormalMap", normalMap);
    }
    if (specularMap != null) {
        mat.setTexture("SpecularMap", specularMap);
    }
    mat.setFloat("Shininess", 16.0f);
    geom.setMaterial(mat);
    return geom;
}