ModelInstance.java 文件源码

/** @param model The source {@link Model}
 * @param transform The {@link Matrix4} instance for this ModelInstance to reference or null to create a new matrix.
 * @param nodeId The ID of the {@link Node} within the {@link Model} for the instance to contain
 * @param recursive True to recursively search the Model's node tree, false to only search for a root node
 * @param parentTransform True to apply the parent's node transform to the instance (only applicable if recursive is true).
 * @param mergeTransform True to apply the source node transform to the instance transform, resetting the node transform. */
public ModelInstance (final Model model, final Matrix4 transform, final String nodeId, boolean recursive,
    boolean parentTransform, boolean mergeTransform, boolean shareKeyframes) {
    this.model = model;
    this.transform = transform == null ? new Matrix4() : transform;
    nodePartBones.clear();
    Node copy, node = model.getNode(nodeId, recursive);
    this.nodes.add(copy = copyNode(node));
    if (mergeTransform) {
        this.transform.mul(parentTransform ? node.globalTransform : node.localTransform);
        copy.translation.set(0, 0, 0);
        copy.rotation.idt();
        copy.scale.set(1, 1, 1);
    } else if (parentTransform && copy.hasParent()) this.transform.mul(node.getParent().globalTransform);
    setBones();
    copyAnimations(model.animations, shareKeyframes);
    calculateTransforms();
}