Examples with GLTFChannel org.terasology.engine.rendering.gltf.model.GLTFChannel used on opensource projects

Example 1 with GLTFChannel

use of org.terasology.engine.rendering.gltf.model.GLTFChannel in project Terasology by MovingBlocks.

the class GLTFAnimationFormat method loadAnimation.

private MeshAnimationData loadAnimation(GLTF gltf, GLTFAnimation animation, List<byte[]> loadedBuffers, TIntIntMap boneIndexMapping, List<String> boneNames, TIntList boneParents, List<Bone> bones) throws IOException {
    List<ChannelReader> channelReaders = new ArrayList<>();
    for (GLTFChannel channel : animation.getChannels()) {
        GLTFAnimationSampler sampler = animation.getSamplers().get(channel.getSampler());
        TFloatList times = getFloats(gltf, loadedBuffers, sampler.getInput());
        int bone = boneIndexMapping.get(channel.getTarget().getNode());
        switch(channel.getTarget().getPath()) {
            case TRANSLATION:
                {
                    List<Vector3f> data = getVector3fs(gltf, loadedBuffers, sampler.getOutput());
                    channelReaders.add(new BufferChannelReader<>(times, data, sampler.getInterpolation()::interpolate, x -> x.getPosition(bone)));
                    break;
                }
            case ROTATION:
                {
                    List<Quaternionf> data = getQuat4fs(gltf, loadedBuffers, sampler.getOutput());
                    channelReaders.add(new BufferChannelReader<>(times, data, sampler.getInterpolation()::interpolate, x -> x.getRotation(bone)));
                    break;
                }
            case SCALE:
                {
                    List<Vector3f> data = getVector3fs(gltf, loadedBuffers, sampler.getOutput());
                    channelReaders.add(new BufferChannelReader<>(times, data, sampler.getInterpolation()::interpolate, x -> x.getBoneScale(bone)));
                    break;
                }
            default:
                break;
        }
    }
    int frameCount = (int) (channelReaders.stream().map(ChannelReader::endTime).reduce(Float::max).orElse(0f) / TIME_PER_FRAME) + 1;
    List<MeshAnimationFrame> frames = new ArrayList<>(frameCount);
    for (int i = 0; i < frameCount; i++) {
        float time = i * TIME_PER_FRAME;
        List<Vector3f> boneLocations = new ArrayList<>();
        List<Quaternionf> boneRotations = new ArrayList<>();
        List<Vector3f> boneScales = new ArrayList<>();
        for (Bone bone : bones) {
            boneLocations.add(new Vector3f(bone.getLocalPosition()));
            boneRotations.add(new Quaternionf(bone.getLocalRotation()));
            boneScales.add(new Vector3f(bone.getLocalScale()));
        }
        MeshAnimationFrame frame = new MeshAnimationFrame(boneLocations, boneRotations, boneScales);
        channelReaders.forEach(x -> x.updateFrame(time, frame));
        frames.add(frame);
    }
    return new MeshAnimationData(boneNames, boneParents, frames, TIME_PER_FRAME, new AABBf(0, 0, 0));
}