Example usage for com.badlogic.gdx.math Matrix4 rotate

Introduction

In this page you can find the example usage for com.badlogic.gdx.math Matrix4 rotate.

Prototype

public Matrix4 rotate(Quaternion rotation) 

Source Link

Document

Postmultiplies this matrix with a (counter-clockwise) rotation matrix.

Usage

From source file:com.mbrlabs.mundus.commons.g3d.MG3dModelLoader.java

License:Apache License

private ModelNode parseNodesRecursively(JsonValue json) {
    ModelNode jsonNode = new ModelNode();

    String id = json.getString("id", null);
    if (id == null)
        throw new GdxRuntimeException("Node id missing.");
    jsonNode.id = id;/*from ww w .j a  v a  2  s  . c  om*/

    JsonValue translation = json.get("translation");
    if (translation != null && translation.size != 3)
        throw new GdxRuntimeException("Node translation incomplete");
    jsonNode.translation = translation == null ? null
            : new Vector3(translation.getFloat(0), translation.getFloat(1), translation.getFloat(2));

    JsonValue rotation = json.get("rotation");
    if (rotation != null && rotation.size != 4)
        throw new GdxRuntimeException("Node rotation incomplete");
    jsonNode.rotation = rotation == null ? null
            : new Quaternion(rotation.getFloat(0), rotation.getFloat(1), rotation.getFloat(2),
                    rotation.getFloat(3));

    JsonValue scale = json.get("scale");
    if (scale != null && scale.size != 3)
        throw new GdxRuntimeException("Node scale incomplete");
    jsonNode.scale = scale == null ? null
            : new Vector3(scale.getFloat(0), scale.getFloat(1), scale.getFloat(2));

    String meshId = json.getString("mesh", null);
    if (meshId != null)
        jsonNode.meshId = meshId;

    JsonValue materials = json.get("parts");
    if (materials != null) {
        jsonNode.parts = new ModelNodePart[materials.size];
        int i = 0;
        for (JsonValue material = materials.child; material != null; material = material.next, i++) {
            ModelNodePart nodePart = new ModelNodePart();

            String meshPartId = material.getString("meshpartid", null);
            String materialId = material.getString("materialid", null);
            if (meshPartId == null || materialId == null) {
                throw new GdxRuntimeException("Node " + id + " part is missing meshPartId or materialId");
            }
            nodePart.materialId = materialId;
            nodePart.meshPartId = meshPartId;

            JsonValue bones = material.get("bones");
            if (bones != null) {
                nodePart.bones = new ArrayMap<String, Matrix4>(true, bones.size, String.class, Matrix4.class);
                int j = 0;
                for (JsonValue bone = bones.child; bone != null; bone = bone.next, j++) {
                    String nodeId = bone.getString("node", null);
                    if (nodeId == null)
                        throw new GdxRuntimeException("Bone node ID missing");

                    Matrix4 transform = new Matrix4();

                    JsonValue val = bone.get("translation");
                    if (val != null && val.size >= 3)
                        transform.translate(val.getFloat(0), val.getFloat(1), val.getFloat(2));

                    val = bone.get("rotation");
                    if (val != null && val.size >= 4)
                        transform.rotate(
                                tempQ.set(val.getFloat(0), val.getFloat(1), val.getFloat(2), val.getFloat(3)));

                    val = bone.get("scale");
                    if (val != null && val.size >= 3)
                        transform.scale(val.getFloat(0), val.getFloat(1), val.getFloat(2));

                    nodePart.bones.put(nodeId, transform);
                }
            }

            jsonNode.parts[i] = nodePart;
        }
    }

    JsonValue children = json.get("children");
    if (children != null) {
        jsonNode.children = new ModelNode[children.size];

        int i = 0;
        for (JsonValue child = children.child; child != null; child = child.next, i++) {
            jsonNode.children[i] = parseNodesRecursively(child);
        }
    }

    return jsonNode;
}

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