Examples with FbxMesh com.jme3.scene.plugins.fbx.mesh.FbxMesh used on opensource projects

Example 6 with FbxMesh

use of com.jme3.scene.plugins.fbx.mesh.FbxMesh in project jmonkeyengine by jMonkeyEngine.

the class SceneLoader method linkScene.

private void linkScene() {
    logger.log(Level.FINE, "Linking scene objects");
    long startTime = System.currentTimeMillis();
    applySkinning();
    buildAnimations();
    for (FbxMesh mesh : geomMap.values()) mesh.clearMaterials();
    // Remove bones from node structures : JME creates attach node by itself
    for (FbxNode limb : limbMap.values()) limb.node.removeFromParent();
    long estimatedTime = System.currentTimeMillis() - startTime;
    logger.log(Level.FINE, "Linking done in {0} ms", estimatedTime);
}

Example 7 with FbxMesh

use of com.jme3.scene.plugins.fbx.mesh.FbxMesh in project jmonkeyengine by jMonkeyEngine.

the class FbxNode method toJmeObject.

@Override
public Spatial toJmeObject() {
    Spatial spatial;
    if (nodeAttribute instanceof FbxMesh) {
        FbxMesh fbxMesh = (FbxMesh) nodeAttribute;
        IntMap<Mesh> jmeMeshes = fbxMesh.getJmeObject();
        if (jmeMeshes == null || jmeMeshes.size() == 0) {
            // No meshes found on FBXMesh (??)
            logger.log(Level.WARNING, "No meshes could be loaded. Creating empty node.");
            spatial = new Node(getName() + "-node");
        } else {
            // Multiple jME3 geometries required for a single FBXMesh.
            String nodeName;
            if (children.isEmpty()) {
                nodeName = getName() + "-mesh";
            } else {
                nodeName = getName() + "-node";
            }
            Node node = new Node(nodeName);
            boolean singleMesh = jmeMeshes.size() == 1;
            for (IntMap.Entry<Mesh> meshInfo : jmeMeshes) {
                node.attachChild(tryCreateGeometry(meshInfo.getKey(), meshInfo.getValue(), singleMesh));
            }
            spatial = node;
        }
    } else {
        if (nodeAttribute != null) {
            // Just specifies that this is a "null" node.
            nodeAttribute.getJmeObject();
        }
        // TODO: handle other node attribute types.
        //       right now everything we don't know about gets converted
        //       to jME3 Node.
        spatial = new Node(getName() + "-node");
    }
    if (!children.isEmpty()) {
        // Check uniform scale.
        // Although, if inheritType is 0 (eInheritRrSs)
        // it might not be a problem.
        Vector3f localScale = jmeLocalNodeTransform.getScale();
        if (!FastMath.approximateEquals(localScale.x, localScale.y) || !FastMath.approximateEquals(localScale.x, localScale.z)) {
            logger.log(Level.WARNING, "Non-uniform scale detected on parent node. " + "The model may appear distorted.");
        }
    }
    spatial.setLocalTransform(jmeLocalNodeTransform);
    if (visibility == 0.0) {
        spatial.setCullHint(CullHint.Always);
    }
    for (Map.Entry<String, Object> userDataEntry : userData.entrySet()) {
        spatial.setUserData(userDataEntry.getKey(), userDataEntry.getValue());
    }
    return spatial;
}

Example 8 with FbxMesh

use of com.jme3.scene.plugins.fbx.mesh.FbxMesh in project jmonkeyengine by jMonkeyEngine.

the class FbxNode method getPreferredParent.

/**
     * If this geometry node is deformed by a skeleton, this
     * returns the node containing the skeleton.
     * 
     * In jME3, a mesh can be deformed by a skeleton only if it is 
     * a child of the node containing the skeleton. However, this
     * is not a requirement in FBX, so we have to modify the scene graph
     * of the loaded model to adjust for this.
     * This happens automatically in 
     * {@link #createScene(com.jme3.scene.plugins.fbx.node.FbxNode)}.
     * 
     * @return The model this node would like to be a child of, or null
     * if no preferred parent.
     */
public FbxNode getPreferredParent() {
    if (!(nodeAttribute instanceof FbxMesh)) {
        return null;
    }
    FbxMesh fbxMesh = (FbxMesh) nodeAttribute;
    FbxSkinDeformer deformer = fbxMesh.getSkinDeformer();
    FbxNode preferredParent = null;
    if (deformer != null) {
        for (FbxCluster cluster : deformer.getJmeObject()) {
            FbxLimbNode limb = cluster.getLimb();
            if (preferredParent == null) {
                preferredParent = limb.getSkeletonHolder();
            } else if (preferredParent != limb.getSkeletonHolder()) {
                logger.log(Level.WARNING, "A mesh is being deformed by multiple skeletons. " + "Only one skeleton will work, ignoring other skeletons.");
            }
        }
    }
    return preferredParent;
}

Example 9 with FbxMesh

use of com.jme3.scene.plugins.fbx.mesh.FbxMesh in project jmonkeyengine by jMonkeyEngine.

the class FbxSkin method generateBoneData.

private int generateBoneData(Mesh mesh, FbxMesh fbxMesh) {
    // Create bone buffers
    FloatBuffer boneWeightData = BufferUtils.createFloatBuffer(fbxMesh.vCount * 4);
    ByteBuffer boneIndicesData = BufferUtils.createByteBuffer(fbxMesh.vCount * 4);
    mesh.setBuffer(VertexBuffer.Type.BoneWeight, 4, boneWeightData);
    mesh.setBuffer(VertexBuffer.Type.BoneIndex, 4, boneIndicesData);
    mesh.getBuffer(VertexBuffer.Type.BoneWeight).setUsage(Usage.CpuOnly);
    mesh.getBuffer(VertexBuffer.Type.BoneIndex).setUsage(Usage.CpuOnly);
    VertexBuffer weightsHW = new VertexBuffer(Type.HWBoneWeight);
    VertexBuffer indicesHW = new VertexBuffer(Type.HWBoneIndex);
    // Setting usage to CpuOnly so that the buffer is not send empty to the GPU
    indicesHW.setUsage(Usage.CpuOnly);
    weightsHW.setUsage(Usage.CpuOnly);
    mesh.setBuffer(weightsHW);
    mesh.setBuffer(indicesHW);
    int bonesLimitExceeded = 0;
    // Accumulate skin bones influence into mesh buffers
    for (FbxNode limb : bones) {
        FbxCluster cluster = limb.skinToCluster.get(id);
        if (cluster == null || cluster.indexes == null || cluster.weights == null || cluster.indexes.length != cluster.weights.length)
            continue;
        if (limb.boneIndex > 255)
            throw new AssetLoadException("Bone index can't be packed into byte");
        for (int i = 0; i < cluster.indexes.length; ++i) {
            int vertexIndex = cluster.indexes[i];
            if (vertexIndex >= fbxMesh.reverseVertexMap.size())
                throw new AssetLoadException("Invalid skinning vertex index. Unexpected index lookup " + vertexIndex + " from " + fbxMesh.reverseVertexMap.size());
            List<Integer> dstVertices = fbxMesh.reverseVertexMap.get(vertexIndex);
            for (int j = 0; j < dstVertices.size(); ++j) {
                int v = dstVertices.get(j);
                // Append bone index and weight to vertex
                int offset;
                int smalestOffset = 0;
                float w = 0;
                float smalestW = Float.MAX_VALUE;
                for (offset = v * 4; offset < v * 4 + 4; ++offset) {
                    w = boneWeightData.get(offset);
                    if (w == 0)
                        break;
                    if (w < smalestW) {
                        smalestW = w;
                        smalestOffset = offset;
                    }
                }
                if (w == 0) {
                    boneWeightData.put(offset, (float) cluster.weights[i]);
                    boneIndicesData.put(offset, (byte) limb.boneIndex);
                } else {
                    if ((float) cluster.weights[i] > smalestW) {
                        // If current weight more than smallest, discard smallest
                        boneWeightData.put(smalestOffset, (float) cluster.weights[i]);
                        boneIndicesData.put(smalestOffset, (byte) limb.boneIndex);
                    }
                    bonesLimitExceeded++;
                }
            }
        }
    }
    if (bonesLimitExceeded > 0)
        scene.warning("Skinning support max 4 bone per vertex. Exceeding data of " + bonesLimitExceeded + " weights in mesh bones will be discarded");
    // Postprocess bones weights
    int maxWeightsPerVert = 0;
    boneWeightData.rewind();
    for (int v = 0; v < fbxMesh.vCount; v++) {
        float w0 = boneWeightData.get();
        float w1 = boneWeightData.get();
        float w2 = boneWeightData.get();
        float w3 = boneWeightData.get();
        if (w3 != 0) {
            maxWeightsPerVert = Math.max(maxWeightsPerVert, 4);
        } else if (w2 != 0) {
            maxWeightsPerVert = Math.max(maxWeightsPerVert, 3);
        } else if (w1 != 0) {
            maxWeightsPerVert = Math.max(maxWeightsPerVert, 2);
        } else if (w0 != 0) {
            maxWeightsPerVert = Math.max(maxWeightsPerVert, 1);
        }
        float sum = w0 + w1 + w2 + w3;
        if (sum != 1f) {
            // normalize weights
            float mult = (sum != 0) ? (1f / sum) : 0;
            boneWeightData.position(v * 4);
            boneWeightData.put(w0 * mult);
            boneWeightData.put(w1 * mult);
            boneWeightData.put(w2 * mult);
            boneWeightData.put(w3 * mult);
        }
    }
    return maxWeightsPerVert;
}