Examples with FbxAnimStack com.jme3.scene.plugins.fbx.anim.FbxAnimStack used on opensource projects

Example 1 with FbxAnimStack

use of com.jme3.scene.plugins.fbx.anim.FbxAnimStack in project jmonkeyengine by jMonkeyEngine.

the class FbxLoader method constructAnimations.

private void constructAnimations() {
    // In FBX, animation are not attached to any root.
    // They are implicitly global.
    // So, we need to use hueristics to find which node(s) 
    // an animation is associated with, so we can create the AnimControl
    // in the appropriate location in the scene.
    Map<FbxToJmeTrack, FbxToJmeTrack> pairs = new HashMap<FbxToJmeTrack, FbxToJmeTrack>();
    for (FbxAnimStack stack : animStacks) {
        for (FbxAnimLayer layer : stack.getLayers()) {
            for (FbxAnimCurveNode curveNode : layer.getAnimationCurveNodes()) {
                for (Map.Entry<FbxNode, String> nodePropertyEntry : curveNode.getInfluencedNodeProperties().entrySet()) {
                    FbxToJmeTrack lookupPair = new FbxToJmeTrack();
                    lookupPair.animStack = stack;
                    lookupPair.animLayer = layer;
                    lookupPair.node = nodePropertyEntry.getKey();
                    // Find if this pair is already stored
                    FbxToJmeTrack storedPair = pairs.get(lookupPair);
                    if (storedPair == null) {
                        // If not, store it.
                        storedPair = lookupPair;
                        pairs.put(storedPair, storedPair);
                    }
                    String property = nodePropertyEntry.getValue();
                    storedPair.animCurves.put(property, curveNode);
                }
            }
        }
    }
    // At this point we can construct the animation for all pairs ...
    for (FbxToJmeTrack pair : pairs.values()) {
        String animName = pair.animStack.getName();
        float duration = pair.animStack.getDuration();
        System.out.println("ANIMATION: " + animName + ", duration = " + duration);
        System.out.println("NODE: " + pair.node.getName());
        duration = pair.getDuration();
        if (pair.node instanceof FbxLimbNode) {
            // Find the spatial that has the skeleton for this limb.
            FbxLimbNode limbNode = (FbxLimbNode) pair.node;
            Bone bone = limbNode.getJmeBone();
            Spatial jmeSpatial = limbNode.getSkeletonHolder().getJmeObject();
            Skeleton skeleton = limbNode.getSkeletonHolder().getJmeSkeleton();
            // Get the animation control (create if missing).
            AnimControl animControl = jmeSpatial.getControl(AnimControl.class);
            if (animControl.getSkeleton() != skeleton) {
                throw new UnsupportedOperationException();
            }
            // Get the animation (create if missing).
            Animation anim = animControl.getAnim(animName);
            if (anim == null) {
                anim = new Animation(animName, duration);
                animControl.addAnim(anim);
            }
            // Find the bone index from the spatial's skeleton.
            int boneIndex = skeleton.getBoneIndex(bone);
            // Generate the bone track.
            BoneTrack bt = pair.toJmeBoneTrack(boneIndex, bone.getBindInverseTransform());
            // Add the bone track to the animation.
            anim.addTrack(bt);
        } else {
            // Create the spatial animation
            Animation anim = new Animation(animName, duration);
            anim.setTracks(new Track[] { pair.toJmeSpatialTrack() });
            // Get the animation control (create if missing).
            Spatial jmeSpatial = pair.node.getJmeObject();
            AnimControl animControl = jmeSpatial.getControl(AnimControl.class);
            if (animControl == null) {
                animControl = new AnimControl(null);
                jmeSpatial.addControl(animControl);
            }
            // Add the spatial animation
            animControl.addAnim(anim);
        }
    }
}