private void LoadAnimation(GLTF.Schema.Animation gltfAnimation, int index, AnimationClip clip)
{
clip.name = gltfAnimation.Name != null && gltfAnimation.Name.Length > 0 ? gltfAnimation.Name : "GLTFAnimation_" + index;
for (int i = 0; i < gltfAnimation.Channels.Count; ++i)
{
AnimationChannel channel = gltfAnimation.Channels[i];
addGLTFChannelDataToClip(gltfAnimation.Channels[i], clip);
}
clip.EnsureQuaternionContinuity();
}
private GLTF.Schema.Animation SaveAnimationClip(Transform tr, AnimationClip clip, string prefix)
{
if (_animClip2anim.ContainsKey(clip))
{
return _animClip2anim[clip];
}
var anim = new GLTF.Schema.Animation { Name = prefix + "@" + clip.name };
var targets = BakeAnimationClip(anim, tr, clip);
var accessors = _animClip2Accessors[clip];
var timeAccessorId = _animClip2TimeAccessor[clip];
int targetId = 0;
int accessorId = 0;
foreach (var target in targets)
{
var targetTr = tr.Find(targets[targetId]);
var targetNode = tr2node[targetTr];
foreach (var accessor in accessors[targetId])
{
var path = accessor.Key;
anim.Channels.Add(
new AnimationChannel
{
Sampler = new AnimationSamplerId { Id = accessorId },
Target = new AnimationChannelTarget { Path = path, Node = new NodeId { Id = root.Nodes.IndexOf(targetNode) } }
}
);
anim.Samplers.Add(
new AnimationSampler {
Input = timeAccessorId,
Output = accessor.Value,
Interpolation = InterpolationType.LINEAR
}
);
accessorId += 1;
}
targetId += 1;
}
root.Animations.Add(anim);
_animClip2anim.Add(clip, anim);
return anim;
}
private List<string> BakeAnimationClip(GLTF.Schema.Animation anim, Transform tr, AnimationClip clip)
{
var needGenerate = !_animClip2Accessors.ContainsKey(clip);
Dictionary<string, Dictionary<GLTFAnimationChannelPath, AnimationCurve[]>> curves = null;
Dictionary<string, bool> rotationIsEuler = null;
if (needGenerate)
{
curves = new Dictionary<string, Dictionary<GLTFAnimationChannelPath, AnimationCurve[]>>();
rotationIsEuler = new Dictionary<string, bool>();
}
List<string> targets = new List<string>();
foreach (var binding in AnimationUtility.GetCurveBindings(clip))
{
var path = binding.path;
var curve = AnimationUtility.GetEditorCurve(clip, binding);
if (!curves.ContainsKey(path))
{
targets.Add(path);
if (needGenerate)
{
curves.Add(path, new Dictionary<GLTFAnimationChannelPath, AnimationCurve[]>());
rotationIsEuler.Add(path, false);
}
}
if (!needGenerate)
{
continue;
}
var current = curves[path];
if (binding.propertyName.Contains("m_LocalPosition"))
{
if (!current.ContainsKey(GLTFAnimationChannelPath.translation))
{
current.Add(GLTFAnimationChannelPath.translation, new AnimationCurve[3]);
}
if (binding.propertyName.Contains(".x"))
current[GLTFAnimationChannelPath.translation][0] = curve;
else if (binding.propertyName.Contains(".y"))
current[GLTFAnimationChannelPath.translation][1] = curve;
else if (binding.propertyName.Contains(".z"))
current[GLTFAnimationChannelPath.translation][2] = curve;
}
else if (binding.propertyName.Contains("m_LocalScale"))
{
if (!current.ContainsKey(GLTFAnimationChannelPath.scale))
{
current.Add(GLTFAnimationChannelPath.scale, new AnimationCurve[3]);
}
if (binding.propertyName.Contains(".x"))
current[GLTFAnimationChannelPath.scale][0] = curve;
else if (binding.propertyName.Contains(".y"))
current[GLTFAnimationChannelPath.scale][1] = curve;
else if (binding.propertyName.Contains(".z"))
current[GLTFAnimationChannelPath.scale][2] = curve;
}
else if (binding.propertyName.ToLower().Contains("localrotation"))
{
if (!current.ContainsKey(GLTFAnimationChannelPath.rotation))
{
current.Add(GLTFAnimationChannelPath.rotation, new AnimationCurve[4]);
}
if (binding.propertyName.Contains(".x"))
current[GLTFAnimationChannelPath.rotation][0] = curve;
else if (binding.propertyName.Contains(".y"))
current[GLTFAnimationChannelPath.rotation][1] = curve;
else if (binding.propertyName.Contains(".z"))
current[GLTFAnimationChannelPath.rotation][2] = curve;
else if (binding.propertyName.Contains(".w"))
current[GLTFAnimationChannelPath.rotation][3] = curve;
}
// Takes into account 'localEuler', 'localEulerAnglesBaked' and 'localEulerAnglesRaw'
else if (binding.propertyName.ToLower().Contains("localeuler"))
{
if (!current.ContainsKey(GLTFAnimationChannelPath.rotation))
{
current.Add(GLTFAnimationChannelPath.rotation, new AnimationCurve[3]);
rotationIsEuler[path] = true;
}
if (binding.propertyName.Contains(".x"))
current[GLTFAnimationChannelPath.rotation][0] = curve;
else if (binding.propertyName.Contains(".y"))
current[GLTFAnimationChannelPath.rotation][1] = curve;
else if (binding.propertyName.Contains(".z"))
current[GLTFAnimationChannelPath.rotation][2] = curve;
}
//todo: weights
}
if (!needGenerate)
{
return targets;
}
var bufferView = CreateStreamBufferView("animation-" + anim.Name);
int nbSamples = (int)(clip.length * 30);
float deltaTime = clip.length / nbSamples;
var accessors = new List<Dictionary<GLTFAnimationChannelPath, AccessorId>>();
_animClip2Accessors.Add(clip, accessors);
foreach (var path in curves.Keys)
{
var accessor = new Dictionary<GLTFAnimationChannelPath, AccessorId>();
accessors.Add(accessor);
float[] times = new float[nbSamples];
Vector3[] translations = null;
Vector3[] scales = null;
Vector4[] rotations = null;
foreach (var curve in curves[path])
{
if (curve.Key == GLTFAnimationChannelPath.translation)
{
translations = new Vector3[nbSamples];
}
else if (curve.Key == GLTFAnimationChannelPath.scale)
{
scales = new Vector3[nbSamples];
}
else if (curve.Key == GLTFAnimationChannelPath.rotation)
{
rotations = new Vector4[nbSamples];
}
}
for (int i = 0; i < nbSamples; i += 1)
{
var currentTime = i * deltaTime;
times[i] = currentTime;
if (translations != null)
{
var curve = curves[path][GLTFAnimationChannelPath.translation];
translations[i] = new Vector3(curve[0].Evaluate(currentTime), curve[1].Evaluate(currentTime), curve[2].Evaluate(currentTime));
}
if (scales != null)
{
var curve = curves[path][GLTFAnimationChannelPath.scale];
scales[i] = new Vector3(curve[0].Evaluate(currentTime), curve[1].Evaluate(currentTime), curve[2].Evaluate(currentTime));
}
if (rotations != null)
{
var curve = curves[path][GLTFAnimationChannelPath.rotation];
if (rotationIsEuler[path])
{
var q = Quaternion.Euler(curve[0].Evaluate(currentTime), curve[1].Evaluate(currentTime), curve[2].Evaluate(currentTime));
rotations[i] = new Vector4(q.x, q.y, q.z, q.w);
} else
{
rotations[i] = new Vector4(curve[0].Evaluate(currentTime), curve[1].Evaluate(currentTime), curve[2].Evaluate(currentTime), curve[3].Evaluate(currentTime));
}
}
}
if (!_animClip2TimeAccessor.ContainsKey(clip))
{
var timeView = ExporterUtils.PackToBuffer(bufferView.streamBuffer, times, GLTFComponentType.Float);
_animClip2TimeAccessor.Add(clip, AccessorToId(timeView, bufferView));
timeView.Name += "-times";
}
AccessorId id = null;
if (translations != null)
{
id = AccessorToId(ExporterUtils.PackToBuffer(bufferView.streamBuffer, translations, GLTFComponentType.Float, (Vector3[] data, int i) => { return Utils.ConvertVector3LeftToRightHandedness(ref data[i]); }), bufferView);
accessor.Add(GLTFAnimationChannelPath.translation, id);
id.Value.Name += "-" + path + "-" + "translation";
}
if (scales != null)
{
id = AccessorToId(ExporterUtils.PackToBuffer(bufferView.streamBuffer, scales, GLTFComponentType.Float), bufferView);
accessor.Add(GLTFAnimationChannelPath.scale, id);
id.Value.Name += "-" + path + "-" + "scales";
}
if (rotations != null)
{
id = AccessorToId(ExporterUtils.PackToBuffer(bufferView.streamBuffer, rotations, GLTFComponentType.Float, (Vector4[] data, int i) => { return Utils.ConvertVector4LeftToRightHandedness(ref data[i]); }), bufferView);
accessor.Add(GLTFAnimationChannelPath.rotation, id);
id.Value.Name += "-" + path + "-" + "rotations";
}
}
return targets;
}
private void _exportAnimation(UnityEngine.AnimationClip animationClip)
{
//
var frameCount = (int)Math.Floor(animationClip.length * animationClip.frameRate) + 1;
var curveBinds = UnityEditor.AnimationUtility.GetCurveBindings(animationClip);
var ignoreCurves = new List <UnityEditor.EditorCurveBinding>();
var glTFAnimation = new GLTF.Schema.Animation()
{
Name = animationClip.name,
Channels = new List <AnimationChannel>(),
Samplers = new List <AnimationSampler>(),
Extensions = new Dictionary <string, IExtension>()
{
{
AnimationExtensionFactory.EXTENSION_NAME,
new AnimationExtension()
{
frameRate = animationClip.frameRate,
clips = new List <AnimationClip>()
{
new AnimationClip()
{
name = animationClip.name,
playTimes = _getPlayTimes(animationClip),
position = 0.0f,
duration = (float)Math.Round(animationClip.length, 6),
}
}
}
},
},
};
var ext = glTFAnimation.Extensions[AnimationExtensionFactory.EXTENSION_NAME] as AnimationExtension;
this._root.Animations.Add(glTFAnimation);
// Input.
var inputAccessor = new Accessor();
inputAccessor.Count = frameCount;
inputAccessor.Type = GLTFAccessorAttributeType.SCALAR;
inputAccessor.ComponentType = GLTFComponentType.Float;
inputAccessor.BufferView = new BufferViewId
{
Id = 0,
Root = _root
};
this._root.Accessors.Add(inputAccessor);
// Write input.
for (var i = 0; i < frameCount; ++i)
{
//_bufferWriter.Write(Math.Round(Math.Min(animationClip.length * i / (frameCount - 1), animationClip.length), 6)); // TODO
_bufferWriter.Write(i / animationClip.frameRate);
}
var MainTex_STy = new List <float>();
foreach (var curveBind in curveBinds)
{
// Curve has been parsed.
if (ignoreCurves.Contains(curveBind))
{
continue;
}
// No target.
var animationTarget = _target.Find(curveBind.path);
if (animationTarget == null)
{
continue;
}
// Create node.
var nodeIndex = _animationTargets.IndexOf(animationTarget);
if (nodeIndex < 0)
{
_animationTargets.Add(animationTarget);
nodeIndex = _root.Nodes.Count;
_root.Nodes.Add(new Node()
{
Name = _target == animationTarget ? "__root__" : animationTarget.name,
});
if (animationTarget.transform.parent == _target)
{
_root.Scenes[0].Nodes.Add(
new NodeId()
{
Id = nodeIndex,
Root = _root,
}
);
}
}
// Output.
var outputAccessor = new Accessor();
outputAccessor.Count = frameCount;
outputAccessor.ComponentType = GLTFComponentType.Float;
outputAccessor.BufferView = inputAccessor.BufferView;
outputAccessor.ByteOffset = (int)_bufferWriter.BaseStream.Position;
this._root.Accessors.Add(outputAccessor);
//
var animationSampler = new AnimationSampler()
{
Input = new AccessorId()
{
Id = this._root.Accessors.IndexOf(inputAccessor),
Root = _root,
},
Interpolation = InterpolationType.LINEAR,
Output = new AccessorId()
{
Id = this._root.Accessors.IndexOf(outputAccessor),
Root = _root,
},
};
glTFAnimation.Samplers.Add(animationSampler);
//
var animationChannel = new AnimationChannel()
{
Sampler = new SamplerId()
{
Id = glTFAnimation.Samplers.IndexOf(animationSampler),
Root = _root,
},
Target = new AnimationChannelTarget()
{
Node = new NodeId()
{
Id = nodeIndex,
Root = _root,
}
}
};
glTFAnimation.Channels.Add(animationChannel);
if (curveBind.type == typeof(Transform))
{
var curveGroup = _getCurveGroup(curveBinds, curveBind);
ignoreCurves.AddRange(curveGroup);
switch (curveBind.propertyName)
{
case "m_LocalPosition.x":
case "m_LocalPosition.y":
case "m_LocalPosition.z":
animationChannel.Target.Path = GLTFAnimationChannelPath.translation;
outputAccessor.Type = GLTFAccessorAttributeType.VEC3;
for (var i = 0; i < frameCount; ++i)
{
var time = i / animationClip.frameRate;
var curveX = UnityEditor.AnimationUtility.GetEditorCurve(animationClip, curveGroup[0]);
var curveY = UnityEditor.AnimationUtility.GetEditorCurve(animationClip, curveGroup[1]);
var curveZ = UnityEditor.AnimationUtility.GetEditorCurve(animationClip, curveGroup[2]);
var value = curveX != null?curveX.Evaluate(time) : animationTarget.transform.localPosition.x;
_bufferWriter.Write(value);
value = curveY != null?curveY.Evaluate(time) : animationTarget.transform.localPosition.y;
_bufferWriter.Write(value);
value = curveZ != null?curveZ.Evaluate(time) : animationTarget.transform.localPosition.z;
_bufferWriter.Write(value);
}
break;
case "m_LocalRotation.x":
case "m_LocalRotation.y":
case "m_LocalRotation.z":
case "m_LocalRotation.w":
animationChannel.Target.Path = GLTFAnimationChannelPath.rotation;
outputAccessor.Type = GLTFAccessorAttributeType.VEC4;
for (var i = 0; i < frameCount; ++i)
{
var time = i / animationClip.frameRate;
var curveX = UnityEditor.AnimationUtility.GetEditorCurve(animationClip, curveGroup[0]);
var curveY = UnityEditor.AnimationUtility.GetEditorCurve(animationClip, curveGroup[1]);
var curveZ = UnityEditor.AnimationUtility.GetEditorCurve(animationClip, curveGroup[2]);
var curveW = UnityEditor.AnimationUtility.GetEditorCurve(animationClip, curveGroup[3]);
var valueX = curveX != null?curveX.Evaluate(time) : animationTarget.transform.localRotation.x;
var valueY = curveY != null?curveY.Evaluate(time) : animationTarget.transform.localRotation.y;
var valueZ = curveZ != null?curveZ.Evaluate(time) : animationTarget.transform.localRotation.z;
var valueW = curveW != null?curveW.Evaluate(time) : animationTarget.transform.localRotation.w;
_bufferWriter.Write(valueX);
_bufferWriter.Write(valueY);
_bufferWriter.Write(valueZ);
_bufferWriter.Write(valueW);
}
break;
case "localEulerAnglesRaw.x":
case "localEulerAnglesRaw.y":
case "localEulerAnglesRaw.z":
animationChannel.Target.Path = GLTFAnimationChannelPath.rotation;
outputAccessor.Type = GLTFAccessorAttributeType.VEC4;
for (var i = 0; i < frameCount; ++i)
{
var time = i / animationClip.frameRate;
var curveX = UnityEditor.AnimationUtility.GetEditorCurve(animationClip, curveGroup[0]);
var curveY = UnityEditor.AnimationUtility.GetEditorCurve(animationClip, curveGroup[1]);
var curveZ = UnityEditor.AnimationUtility.GetEditorCurve(animationClip, curveGroup[2]);
var valueX = curveX != null?curveX.Evaluate(time) : animationTarget.transform.localEulerAngles.x;
var valueY = curveY != null?curveY.Evaluate(time) : animationTarget.transform.localEulerAngles.y;
var valueZ = curveZ != null?curveZ.Evaluate(time) : animationTarget.transform.localEulerAngles.z;
var quaternion = Quaternion.Euler(valueX, valueY, valueZ);
_bufferWriter.Write(quaternion.x);
_bufferWriter.Write(quaternion.y);
_bufferWriter.Write(quaternion.z);
_bufferWriter.Write(quaternion.w);
}
break;
case "m_LocalScale.x":
case "m_LocalScale.y":
case "m_LocalScale.z":
animationChannel.Target.Path = GLTFAnimationChannelPath.scale;
outputAccessor.Type = GLTFAccessorAttributeType.VEC3;
for (var i = 0; i < frameCount; ++i)
{
var time = i / animationClip.frameRate;
var curveX = UnityEditor.AnimationUtility.GetEditorCurve(animationClip, curveGroup[0]);
var curveY = UnityEditor.AnimationUtility.GetEditorCurve(animationClip, curveGroup[1]);
var curveZ = UnityEditor.AnimationUtility.GetEditorCurve(animationClip, curveGroup[2]);
var value = curveX != null?curveX.Evaluate(time) : animationTarget.transform.localScale.x;
_bufferWriter.Write(value);
value = curveY != null?curveY.Evaluate(time) : animationTarget.transform.localScale.y;
_bufferWriter.Write(value);
value = curveZ != null?curveZ.Evaluate(time) : animationTarget.transform.localScale.z;
_bufferWriter.Write(value);
}
break;
}
}
else
{
animationChannel.Target.Path = GLTFAnimationChannelPath.custom;
outputAccessor.Type = GLTFAccessorAttributeType.SCALAR;
var type = "";
var property = "";
var uri = "";
var needUpdate = -1;
if (curveBind.type == typeof(GameObject))
{
type = "paper.GameObject";
switch (curveBind.propertyName)
{
case "m_IsActive":
property = "activeSelf";
animationSampler.Interpolation = InterpolationType.STEP;
break;
}
// for (var i = 0; i < frameCount; ++i) // TODO
// {
// var time = animationClip.length * i / frameCountSO; // TODO
// var curve = UnityEditor.AnimationUtility.GetEditorCurve(animationClip, curveBind);
// var value = curve.Evaluate(time);
// _bufferWriter.Write(value);
// }
}
else if (curveBind.type == typeof(UnityEngine.MeshRenderer))
{
type = "egret3d.MeshRenderer";
uri = "materials/0/$/_uvTransform";
needUpdate = 1;
// animationSampler.Interpolation = InterpolationType.STEP;
switch (curveBind.propertyName)
{
case "material._MainTex_ST.z":
property = "0";
break;
case "material._MainTex_ST.w":
property = "1";
break;
case "material._MainTex_ST.x":
property = "2";
break;
case "material._MainTex_ST.y":
property = "3";
break;
}
}
else
{
Debug.Log("Unknown type and property." + curveBind.type.ToString() + curveBind.propertyName);
}
// Extensions.
animationChannel.Extensions = new Dictionary <string, IExtension>()
{
{
AnimationExtensionFactory.EXTENSION_NAME,
new AnimationChannelExtension()
{
type = type,
property = property,
uri = uri,
needUpdate = needUpdate,
}
},
};
for (var i = 0; i < frameCount; ++i)
{
var curve = UnityEditor.AnimationUtility.GetEditorCurve(animationClip, curveBind);
if (curve != null)
{
var value = curve.Evaluate(i / animationClip.frameRate);
if (curveBind.propertyName == "material._MainTex_ST.w")
{
if (i < MainTex_STy.Count)
{
_bufferWriter.Write(1.0f - value - MainTex_STy[i]);
}
else
{
_bufferWriter.Write(value);
}
}
else
{
_bufferWriter.Write(value);
if (curveBind.propertyName == "material._MainTex_ST.y")
{
MainTex_STy.Add(value);
}
}
}
}
}
}
foreach (var evt in animationClip.events)
{
var glTFFrameEvent = new AnimationFrameEvent();
glTFFrameEvent.name = evt.functionName;
glTFFrameEvent.position = evt.time;
glTFFrameEvent.intVariable = evt.intParameter;
glTFFrameEvent.floatVariable = evt.floatParameter;
glTFFrameEvent.stringVariable = evt.stringParameter;
ext.events.Add(glTFFrameEvent);
}
ext.events.Sort();
}
private void ExportAnimation()
{
var player = this._target.GetComponent <FB.PosePlus.AniPlayer>();
var totalBones = player.bones.Count;
var totalFrame = player.totalFrame();
var bufSize = UnityEngine.Quaternion.identity.GetBytes().Length + UnityEngine.Vector3.zero.GetBytes().Length;
var binarySingleFrameSize = totalBones * bufSize;
var animation = new GLTF.Schema.Animation()
{
Name = player.name,
Extensions = new Dictionary <string, IExtension>()
};
var ext = new AnimationExtension();
ext.frameRate = player.clips[0].fps;
ext.clips = new List <AnimationClip>();
float position = 0;
for (var aniIndex = 0; aniIndex < player.clips.Count; aniIndex++)
{
var rawClip = player.clips[aniIndex];
var ani = new AnimationClip();
ani.name = rawClip.clipName;
ani.position = position;
ani.duration = (rawClip.frames.Count - 1) / ext.frameRate;
position += rawClip.frames.Count / ext.frameRate;
/*for (var evtIndex = 0; evtIndex < rawClip.events.Count; evtIndex++)
* {
* var rawEvent = rawClip.events[evtIndex];
* var evt = new Schema.FrameEvent();
* evt.name = rawEvent.name;
* evt.position = rawEvent.position;
* evt.intVariable = rawEvent.intVariable;
* evt.floatVariable = rawEvent.floatVariable;
* evt.stringVariable = rawEvent.stringVariable;
* ani.events.Add(evt);
* }*/
ext.clips.Add(ani);
}
var bufferOffset = this._bufferWriter.BaseStream.Position;
WriteBinary(player, totalFrame, binarySingleFrameSize);
var bufferLength = this._bufferWriter.BaseStream.Position;
var accessor = new Accessor();
accessor.Count = (int)(bufferLength / 4);
accessor.Type = GLTFAccessorAttributeType.SCALAR;
accessor.ComponentType = GLTFComponentType.Float;
accessor.BufferView = ExportBufferView((int)0, (int)bufferLength);
this._root.Accessors.Add(accessor);
animation.Extensions.Add(AnimationExtensionFactory.EXTENSION_NAME, ext);
this._root.Animations.Add(animation);
}
