/// <summary>
/// Converts an intermediate format content pipeline AnimationContent
/// object to our runtime AnimationClip format.
/// </summary>
public static ModelAnimationClip ProcessRootAnimation(AnimationContent animation, string name)
{
List<ModelKeyframe> keyframes = new List<ModelKeyframe>();
// The root animation is controlling the root of the bones
AnimationChannel channel = animation.Channels[name];
// Add the transformations on the root of the model
foreach (AnimationKeyframe keyframe in channel)
{
keyframes.Add(new ModelKeyframe(0, keyframe.Time, keyframe.Transform));
}
// Sort the merged keyframes by time.
keyframes.Sort(CompareKeyframeTimes);
if (keyframes.Count == 0)
throw new InvalidContentException("Animation has no keyframes.");
if (animation.Duration <= TimeSpan.Zero)
throw new InvalidContentException("Animation has a zero duration.");
return new ModelAnimationClip(animation.Duration, keyframes);
}
/// <summary>
/// Converts an intermediate format content pipeline AnimationContent
/// object to our runtime AnimationClip format.
/// </summary>
static Clip ProcessAnimation(AnimationContent animation, Dictionary<string, int> boneMap)
{
Dictionary<int, Channel> channels = new Dictionary<int, Channel>();
// For each input animation channel.
foreach (KeyValuePair<string, AnimationChannel> inputChannel in animation.Channels)
{
// Look up what bone this channel is controlling.
int boneIndex;
if (!boneMap.TryGetValue(inputChannel.Key, out boneIndex))
{
throw new InvalidContentException(string.Format(
"Found animation for bone '{0}', " +
"which is not part of the skeleton.", inputChannel.Key));
}
if (inputChannel.Value.Count > 0)
{
Channel newChannel = null;
if (!channels.TryGetValue(boneIndex, out newChannel))
{
channels[boneIndex] = newChannel = new Channel();
newChannel.BoneIndex = boneIndex;
}
foreach (AnimationKeyframe keyframe in inputChannel.Value)
{
if (newChannel.Count == 0 || !newChannel[newChannel.Count - 1].Transform.Equals(keyframe.Transform))
newChannel.Add(new Keyframe(new TimeSpan(keyframe.Time.Ticks), keyframe.Transform));
}
newChannel.Sort(CompareKeyframeTimes);
}
}
return new Clip(new TimeSpan(animation.Duration.Ticks), channels.Values);
}
/// <summary>
/// Converts an intermediate format content pipeline AnimationContent
/// object to our runtime AnimationClip format.
/// </summary>
static AnimationClip ProcessAnimation(AnimationContent animation,
Dictionary<string, int> boneMap, string clipName)
{
List<Keyframe> keyframes = new List<Keyframe>();
// For each input animation channel.
foreach (KeyValuePair<string, AnimationChannel> channel in
animation.Channels)
{
// Look up what bone this channel is controlling.
int boneIndex = boneMap[channel.Key];
// Convert the keyframe data.
foreach (AnimationKeyframe keyframe in channel.Value)
{
keyframes.Add(new Keyframe(boneIndex, keyframe.Time,
keyframe.Transform));
}
}
// Sort the merged keyframes by time.
keyframes.Sort(CompareKeyframeTimes);
return new AnimationClip(animation.Duration, keyframes, clipName);
}
private static AnimationClip ProcessAnimation(AnimationContent animation, Dictionary<string, int> boneMap) {
int num = 0;
bool count;
List<Keyframe> keyframes = new List<Keyframe>();
IEnumerator<KeyValuePair<string, AnimationChannel>> enumerator = animation.Channels.GetEnumerator();
try {
while (true) {
count = enumerator.MoveNext();
if (!count) {
break;
}
KeyValuePair<string, AnimationChannel> current = enumerator.Current;
count = boneMap.TryGetValue(current.Key, out num);
if (!count) {
throw new InvalidContentException(string.Format("Found animation for bone '{0}', which is not part of the skeleton.", current.Key));
}
IEnumerator<AnimationKeyframe> enumerator1 = current.Value.GetEnumerator();
try {
while (true) {
count = enumerator1.MoveNext();
if (!count) {
break;
}
AnimationKeyframe animationKeyframe = enumerator1.Current;
keyframes.Add(new Keyframe(num, animationKeyframe.Time, animationKeyframe.Transform));
}
} finally {
count = enumerator1 == null;
if (!count) {
enumerator1.Dispose();
}
}
}
} finally {
count = enumerator == null;
if (!count) {
enumerator.Dispose();
}
}
keyframes.Sort(SkinnedModelProcessor.CompareKeyframeTimes);
count = keyframes.Count != 0;
if (count) {
count = !(animation.Duration <= TimeSpan.Zero);
if (count) {
AnimationClip animationClip = new AnimationClip(animation.Duration, keyframes);
return animationClip;
} else {
throw new InvalidContentException("Animation has a zero duration.");
}
} else {
throw new InvalidContentException("Animation has no keyframes.");
}
}
/// <summary>
/// Converts an intermediate format content pipeline AnimationContent
/// object to our runtime AnimationClip format.
/// </summary>
static AnimationClip ProcessAnimation(AnimationContent animation,
Dictionary<string, int> boneMap)
{
//System.Diagnostics.Debugger.Launch();
List<Keyframe> keyframes = new List<Keyframe>();
int affectedBones = animation.Channels.Count;
int[] affectedBoneIndices = new int[affectedBones];
int affectedBoneIndex = 0;
// For each input animation channel.
foreach (KeyValuePair<string, AnimationChannel> channel in
animation.Channels)
{
// Look up what bone this channel is controlling.
int boneIndex;
if (!boneMap.TryGetValue(channel.Key, out boneIndex))
{
throw new InvalidContentException(string.Format(
"Found animation for bone '{0}', " +
"which is not part of the skeleton.", channel.Key));
}
// save the index of the affected bone
affectedBoneIndices[affectedBoneIndex++] = boneIndex;
// Convert the keyframe data.
foreach (AnimationKeyframe keyframe in channel.Value)
{
keyframes.Add(new Keyframe(boneIndex, keyframe.Time,
keyframe.Transform));
}
}
// Sort the merged keyframes by time.
keyframes.Sort(CompareKeyframeTimes);
if (keyframes.Count == 0)
throw new InvalidContentException("Animation has no keyframes.");
if (animation.Duration <= TimeSpan.Zero)
throw new InvalidContentException("Animation has a zero duration.");
AnimationClip clip = new AnimationClip(animation.Duration, keyframes, affectedBoneIndices);
return clip;
}
/// <summary>
/// Converts an AnimationContent to a SkeletonKeyFrameAnimation.
/// </summary>
private SkeletonKeyFrameAnimation ProcessAnimation(AnimationContent animationContent, Skeleton skeleton, ContentProcessorContext context)
{
var animation = new SkeletonKeyFrameAnimation { EnableInterpolation = true };
// Process all animation channels (each channel animates a bone).
int numberOfKeyFrames = 0;
foreach (var item in animationContent.Channels)
{
string channelName = item.Key;
AnimationChannel channel = item.Value;
int boneIndex = skeleton.GetIndex(channelName);
if (boneIndex == -1)
{
var message = string.Format("Found animation for bone '{0}', which is not part of the skeleton.", channelName);
throw new InvalidContentException(message, animationContent.Identity);
}
var bindPoseRelativeInverse = skeleton.GetBindPoseRelative(boneIndex).Inverse;
foreach (AnimationKeyframe keyframe in channel)
{
TimeSpan time = keyframe.Time;
SrtTransform transform = SrtTransform.FromMatrix(keyframe.Transform);
// The matrix in the key frame is the transformation in the coordinate space of the
// parent bone. --> Convert it to a transformation relative to the animated bone.
transform = bindPoseRelativeInverse * transform;
// To start with minimal numerical errors, we normalize the rotation quaternion.
transform.Rotation.Normalize();
animation.AddKeyFrame(boneIndex, time, transform);
numberOfKeyFrames++;
}
}
if (numberOfKeyFrames == 0)
throw new InvalidContentException("Animation has no keyframes.", animationContent.Identity);
// Compress animation to safe memory.
float removedKeyFrames = animation.Compress(
CompressionScaleThreshold,
CompressionRotationThreshold,
CompressionTranslationThreshold);
if (removedKeyFrames > 0)
context.Logger.LogImportantMessage("{0}: Compression removed {1:P} of all key frames.",
animationContent.Name,
removedKeyFrames);
// Finalize the animation. (Optimizes the animation data for fast runtime access.)
animation.Freeze();
return animation;
}
private SkeletonKeyFrameAnimation BuildAnimation(AnimationContent animationContent)
{
string name = animationContent.Name;
// Add loop frame?
bool addLoopFrame = false;
if (_modelDescription != null)
{
var animationDescription = _modelDescription.Animation;
if (animationDescription != null)
{
addLoopFrame = animationDescription.AddLoopFrame ?? false;
if (animationDescription.Splits != null)
{
foreach (var split in animationDescription.Splits)
{
if (split.Name == name)
{
if (split.AddLoopFrame.HasValue)
addLoopFrame = split.AddLoopFrame.Value;
break;
}
}
}
}
}
var animation = new SkeletonKeyFrameAnimation { EnableInterpolation = true };
// Process all animation channels (each channel animates a bone).
int numberOfKeyFrames = 0;
foreach (var item in animationContent.Channels)
{
string channelName = item.Key;
AnimationChannel channel = item.Value;
int boneIndex = _skeleton.GetIndex(channelName);
if (boneIndex != -1)
{
SrtTransform? loopFrame = null;
var bindPoseRelativeInverse = _skeleton.GetBindPoseRelative(boneIndex).Inverse;
foreach (AnimationKeyframe keyframe in channel)
{
TimeSpan time = keyframe.Time;
SrtTransform transform = SrtTransform.FromMatrix(keyframe.Transform);
// The matrix in the key frame is the transformation in the coordinate space of the
// parent bone. --> Convert it to a transformation relative to the animated bone.
transform = bindPoseRelativeInverse * transform;
// To start with minimal numerical errors, we normalize the rotation quaternion.
transform.Rotation.Normalize();
if (loopFrame == null)
loopFrame = transform;
if (!addLoopFrame || time < animationContent.Duration)
animation.AddKeyFrame(boneIndex, time, transform);
numberOfKeyFrames++;
}
if (addLoopFrame && loopFrame.HasValue)
animation.AddKeyFrame(boneIndex, animationContent.Duration, loopFrame.Value);
}
else
{
_context.Logger.LogWarning(
null, animationContent.Identity,
"Found animation for bone \"{0}\", which is not part of the skeleton.",
channelName);
}
}
if (numberOfKeyFrames == 0)
{
_context.Logger.LogWarning(null, animationContent.Identity, "Animation is ignored because it has no keyframes.");
return null;
}
// Compress animation to save memory.
if (_modelDescription != null)
{
var animationDescription = _modelDescription.Animation;
if (animationDescription != null)
{
float removedKeyFrames = animation.Compress(
animationDescription.ScaleCompression,
animationDescription.RotationCompression,
animationDescription.TranslationCompression);
if (removedKeyFrames > 0)
{
_context.Logger.LogImportantMessage("{0}: Compression removed {1:P} of all key frames.",
string.IsNullOrEmpty(name) ? "Unnamed" : name,
removedKeyFrames);
}
}
}
// Finalize the animation. (Optimizes the animation data for fast runtime access.)
animation.Freeze();
return animation;
}
/// <summary>
/// Converts an intermediate format content pipeline AnimationContent
/// object to our runtime AnimationClip format.
/// </summary>
public static AnimationClip ProcessAnimation(AnimationContent animation,
IDictionary<string, int> boneMap,
ContentProcessorContext context)
{
List<Keyframe> keyframes = new List<Keyframe>();
// For each input animation channel.
foreach (KeyValuePair<string, AnimationChannel> channel in
animation.Channels)
{
// Look up what bone this channel is controlling.
int boneIndex;
if (!boneMap.TryGetValue(channel.Key, out boneIndex))
{
//throw new InvalidContentException(string.Format(
// "Found animation for bone '{0}', " +
//"which is not part of the skeleton.", channel.Key));
context.Logger.LogWarning(null, null,
string.Format("Found animation for bone '{0}', " +
"which is not part of the skeleton.", channel.Key));
// Skip this channel
continue;
}
// Convert the keyframe data.
foreach (AnimationKeyframe keyframe in channel.Value)
{
keyframes.Add(new Keyframe(boneIndex, keyframe.Time,
keyframe.Transform));
}
}
// Sort the merged keyframes by time.
keyframes.Sort(CompareKeyframeTimes);
if (keyframes.Count == 0)
{
//throw new InvalidContentException("Animation has no keyframes.");
context.Logger.LogWarning(null, null, "Animation has no keyframes.");
return null;
}
if (animation.Duration <= TimeSpan.Zero)
{
//throw new InvalidContentException("Animation has a zero duration.");
context.Logger.LogWarning(null, null, "Animation has a zero duration.");
return null;
}
// A model from a 3D modelling package does not have sound cues
// We have to add them manually to our modified clip file
List<TimeSpan> dummy = new List<TimeSpan>();
return new AnimationClip(boneMap.Count, animation.Duration, keyframes, dummy);
}
/// <summary>
/// Return true if you want to trim the given animation, removing identical frames
/// from the end. This is necessay for short animations imported through the .X
/// importer, which somehow manages to add blank padding to the duration.
/// </summary>
/// <param name="ac">The animation to test against the list of animation name patterns</param>
/// <returns></returns>
protected virtual bool ShouldTrimAnimation(AnimationContent ac)
{
if (trimAnimationExpressions_ != null)
foreach (Regex re in trimAnimationExpressions_)
if (re.IsMatch(ac.Name))
return true;
return false;
}
/// <summary>
/// Return true if you want to include the specific animation in the output animation set.
/// </summary>
/// <param name="ac">The animation to check.</param>
/// <returns>true unless the animation name is in a semicolon-separated list called ExcludeAnimations</returns>
protected virtual bool IncludeAnimation(AnimationContent ac)
{
if (excludeAnimationsExpressions_ != null)
foreach (Regex re in excludeAnimationsExpressions_)
if (re.IsMatch(ac.Name))
return false;
return true;
}
/// <summary>
/// Converts an intermediate format content pipeline AnimationContent
/// object to our runtime AnimationClip format.
/// </summary>
static Clip ProcessAnimation(AnimationContent animation, Dictionary<string, int> boneMap)
{
Dictionary<int, Channel> channels = new Dictionary<int, Channel>();
// For each input animation channel.
foreach (KeyValuePair<string, AnimationChannel> inputChannel in animation.Channels)
{
// Look up what bone this channel is controlling.
int boneIndex;
if (!boneMap.TryGetValue(inputChannel.Key, out boneIndex))
continue;
if (inputChannel.Value.Count > 0)
{
Channel newChannel = null;
if (!channels.TryGetValue(boneIndex, out newChannel))
{
channels[boneIndex] = newChannel = new Channel();
newChannel.BoneIndex = boneIndex;
}
foreach (AnimationKeyframe keyframe in inputChannel.Value)
newChannel.Add(new Keyframe(keyframe.Time, keyframe.Transform));
newChannel.Sort(CompareKeyframeTimes);
for (int i = 2; i < newChannel.Count; i++)
{
Keyframe keyframe = newChannel[i];
if (newChannel[i - 1].Transform.Equals(keyframe.Transform)
&& newChannel[newChannel.Count - 2].Transform.Equals(keyframe.Transform))
{
newChannel.RemoveAt(i - 1);
i--;
}
}
}
}
return new Clip(channels.Values);
}
/// <summary>
/// Return true if you want to include the specific track (bone) in the output animation set.
/// </summary>
/// <param name="ac">The animation to check.</param>
/// <returns>true unless the bone name is in a semicolon-separated list called ExcludeBones</returns>
protected virtual bool IncludeTrack(AnimationContent ac, string name)
{
if (excludeBonesExpressions_ != null)
foreach (Regex re in excludeBonesExpressions_)
if (re.IsMatch(name))
return false;
return true;
}
public void DefaultEffectTest()
{
NodeContent input;
{
input = new NodeContent();
var mesh = new MeshContent()
{
Name = "Mesh1"
};
mesh.Positions.Add(new Vector3(0, 0, 0));
mesh.Positions.Add(new Vector3(1, 0, 0));
mesh.Positions.Add(new Vector3(1, 1, 1));
var geom = new GeometryContent();
geom.Vertices.Add(0);
geom.Vertices.Add(1);
geom.Vertices.Add(2);
geom.Indices.Add(0);
geom.Indices.Add(1);
geom.Indices.Add(2);
geom.Vertices.Channels.Add(VertexChannelNames.TextureCoordinate(0), new[]
{
new Vector2(0,0),
new Vector2(1,0),
new Vector2(1,1),
});
var wieghts = new BoneWeightCollection();
wieghts.Add(new BoneWeight("bone1", 0.5f));
geom.Vertices.Channels.Add(VertexChannelNames.Weights(0), new[]
{
wieghts,
wieghts,
wieghts
});
mesh.Geometry.Add(geom);
input.Children.Add(mesh);
var bone1 = new BoneContent { Name = "bone1", Transform = Matrix.CreateTranslation(0,1,0) };
input.Children.Add(bone1);
var anim = new AnimationContent()
{
Name = "anim1",
Duration = TimeSpan.Zero
};
input.Animations.Add(anim.Name, anim);
}
var processorContext = new TestProcessorContext(TargetPlatform.Windows, "dummy.xnb");
var processor = new ModelProcessor
{
DefaultEffect = MaterialProcessorDefaultEffect.SkinnedEffect,
};
var output = processor.Process(input, processorContext);
// TODO: Not sure why, but XNA always returns a BasicMaterialContent
// even when we specify SkinnedEffect as the default. We need to fix
// the test first before we can enable the assert here.
//Assert.IsInstanceOf(typeof(SkinnedMaterialContent), output.Meshes[0].MeshParts[0].Material);
}
/// <summary>
/// Converts an intermediate format content pipeline AnimationContent
/// object to our runtime AnimationClip format.
/// </summary>
AnimationClip ProcessAnimation(AnimationContent animation,
Dictionary<string, int> boneMap)
{
List<Keyframe> keyframes = new List<Keyframe>();
// For each input animation channel.
foreach (KeyValuePair<string, AnimationChannel> channel in
animation.Channels)
{
// Look up what bone this channel is controlling.
int boneIndex;
if (!boneMap.TryGetValue(channel.Key, out boneIndex))
{
throw new InvalidContentException(string.Format(
"Found animation for bone '{0}', " +
"which is not part of the skeleton.", channel.Key));
}
// Convert the keyframe data.
foreach (AnimationKeyframe keyframe in channel.Value)
{
Matrix m = keyframe.Transform;
m.Translation = m.Translation * Scale;
keyframe.Transform = m;
keyframes.Add(new Keyframe(boneIndex, keyframe.Time,
keyframe.Transform));
}
}
// Sort the merged keyframes by time.
keyframes.Sort(CompareKeyframeTimes);
if (keyframes.Count == 0)
throw new InvalidContentException("Animation has no keyframes.");
if (animation.Duration <= TimeSpan.Zero)
throw new InvalidContentException("Animation has a zero duration.");
return new AnimationClip(animation.Duration, keyframes);
}
public static void Split(AnimationContentDictionary animationDictionary, IList<AnimationSplitDefinition> splits, ContentIdentity contentIdentity, ContentProcessorContext context)
{
if (splits == null || splits.Count == 0)
return;
if (animationDictionary == null)
return;
if (contentIdentity == null)
throw new ArgumentNullException("contentIdentity");
if (context == null)
throw new ArgumentNullException("context");
if (animationDictionary.Count == 0)
{
context.Logger.LogWarning(null, contentIdentity, "The model does not have an animation. Animation splitting is skipped.");
return;
}
if (animationDictionary.Count > 1)
context.Logger.LogWarning(null, contentIdentity, "The model contains more than 1 animation. The animation splitting is performed on the first animation. Other animations are deleted!");
// Get first animation.
var originalAnimation = animationDictionary.First().Value;
// Clear animation dictionary. - We do not keep the original animations!
animationDictionary.Clear();
// Add an animation to animationDictionary for each split.
foreach (var split in splits)
{
TimeSpan startTime = split.StartTime;
TimeSpan endTime = split.EndTime;
var newAnimation = new AnimationContent
{
Name = split.Name,
Duration = endTime - startTime
};
// Process all channels.
foreach (var item in originalAnimation.Channels)
{
string channelName = item.Key;
AnimationChannel originalChannel = item.Value;
if (originalChannel.Count == 0)
return;
AnimationChannel newChannel = new AnimationChannel();
// Add all key frames to the channel that are in the split interval.
foreach (AnimationKeyframe keyFrame in originalChannel)
{
TimeSpan time = keyFrame.Time;
if (startTime <= time && time <= endTime)
{
newChannel.Add(new AnimationKeyframe(keyFrame.Time - startTime, keyFrame.Transform));
}
}
// Add channel if it contains key frames.
if (newChannel.Count > 0)
newAnimation.Channels.Add(channelName, newChannel);
}
if (newAnimation.Channels.Count == 0)
{
var message = string.Format(CultureInfo.InvariantCulture, "The split animation '{0}' is empty.", split.Name);
throw new InvalidContentException(message, contentIdentity);
}
if (animationDictionary.ContainsKey(split.Name))
{
var message = string.Format(CultureInfo.InvariantCulture, "Cannot add split animation '{0}' because an animation with the same name already exits.", split.Name);
throw new InvalidContentException(message, contentIdentity);
}
animationDictionary.Add(split.Name, newAnimation);
}
}
/// <summary>
/// Called when an AnimationContent is processed.
/// </summary>
/// <param name="animation">The AnimationContent to be processed.</param>
/// <returns>The processed AnimationContent.</returns>
protected virtual AnimationContent ProcessAnimation(AnimationContent animation)
{
// M * M = F
//
AnimationProcessor ap = new AnimationProcessor();
AnimationContent newAnim = ap.Interpolate(animation);
newAnim.Name = animation.Name;
return newAnim;
;
}
/// <summary>
/// コンテント・パイプライン内の中間フォーマットである
/// AnimationContentから、ランタイムフォーマットである
/// AnimationClipフォーマットに変換する
/// </summary>
static AnimationClip ProcessAnimation(AnimationContent animation,
Dictionary<string, int> boneMap)
{
List<Keyframe> keyframes = new List<Keyframe>();
// それぞれのアニメーション・チャンネルを処理する
foreach (KeyValuePair<string, AnimationChannel> channel in
animation.Channels)
{
// このチャンネルはどのボーンのものか？
int boneIndex;
if (!boneMap.TryGetValue(channel.Key, out boneIndex))
{
throw new InvalidContentException(string.Format(
"スケルトンに属さないボーン'{0}'"+
"のアニメーションが見つかりました。", channel.Key));
}
// キーフレームの変換
foreach (AnimationKeyframe keyframe in channel.Value)
{
keyframes.Add(new Keyframe(boneIndex, keyframe.Time,
QuatTransform.FromMatrix(keyframe.Transform)));
}
}
// キーフレームを時間順に並べ替える
keyframes.Sort(CompareKeyframeTimes);
if (keyframes.Count == 0)
throw new InvalidContentException(
"キーフレームの無いアニメーションです。");
if (animation.Duration <= TimeSpan.Zero)
throw new InvalidContentException(
"再生時間が0のアニメーションです。");
return new AnimationClip(animation.Duration, keyframes);
}
/// <summary>
/// Called when an XML document is read that specifies how animations
/// should be split.
/// </summary>
/// <param name="animDict">The dictionary of animation name/AnimationContent
/// pairs. </param>
/// <param name="doc">The Xml document that contains info on how to split
/// the animations.</param>
protected virtual void SubdivideAnimations(
AnimationContentDictionary animDict, XmlDocument doc)
{
string[] animNames = new string[animDict.Keys.Count];
animDict.Keys.CopyTo(animNames, 0);
if (animNames.Length == 0)
return;
// Traverse each xml node that represents an animation to be subdivided
foreach (XmlNode node in doc)
{
XmlElement child = node as XmlElement;
if (child == null || child.Name != "animation")
continue;
string animName = null;
if (child["name"] != null)
{
// The name of the animation to be split
animName = child["name"].InnerText;
}
else if (child["index"] != null)
{
animName = animNames[int.Parse(child["index"].InnerText)];
}
else
{
animName = animNames[0];
}
// If the tickspersecond node is filled, use that to calculate seconds per tick
double animTicksPerSecond = 1.0, secondsPerTick = 0;
try
{
if (child["tickspersecond"] != null)
{
animTicksPerSecond = double.Parse(child["tickspersecond"].InnerText);
}
}
catch
{
throw new Exception("Error parsing tickspersecond in xml file.");
}
if (animTicksPerSecond <= 0)
throw new InvalidDataException("AnimTicksPerSecond in XML file must be " +
"a positive number.");
secondsPerTick = 1.0 / animTicksPerSecond;
AnimationContent anim = null;
// Get the animation and remove it from the dict
// Check to see if the animation specified in the xml file exists
try
{
anim = animDict[animName];
}
catch
{
throw new Exception("Animation named " + animName + " specified in XML file does not exist in model.");
}
animDict.Remove(anim.Name);
// Get the list of new animations
XmlNodeList subAnimations = child.GetElementsByTagName("animationsubset");
foreach (XmlElement subAnim in subAnimations)
{
// Create the new sub animation
AnimationContent newAnim = new AnimationContent();
XmlElement subAnimNameElement = subAnim["name"];
if (subAnimNameElement != null)
newAnim.Name = subAnimNameElement.InnerText;
// If a starttime node exists, use that to get the start time
long startTime, endTime;
if (subAnim["starttime"] != null)
{
try
{
startTime = TimeSpan.FromSeconds(double.Parse(subAnim["starttime"].InnerText)).Ticks;
}
catch
{
throw new Exception("Error parsing starttime node in XML file. Node inner text "
+ "must be a non negative number.");
}
}
else if (subAnim["startframe"] != null)// else use the secondspertick combined with the startframe node value
{
try
{
double seconds =
double.Parse(subAnim["startframe"].InnerText) * secondsPerTick;
startTime = TimeSpan.FromSeconds(
seconds).Ticks;
}
catch
{
throw new Exception("Error parsing startframe node in XML file. Node inner text "
+ "must be a non negative number.");
}
}
else
throw new Exception("Sub animation in XML file must have either a starttime or startframe node.");
// Same with endtime/endframe
if (subAnim["endtime"] != null)
{
try
{
endTime = TimeSpan.FromSeconds(double.Parse(subAnim["endtime"].InnerText)).Ticks;
}
catch
{
throw new Exception("Error parsing endtime node in XML file. Node inner text "
+ "must be a non negative number.");
}
}
else if (subAnim["endframe"] != null)
{
try
{
double seconds = double.Parse(subAnim["endframe"].InnerText)
* secondsPerTick;
endTime = TimeSpan.FromSeconds(
seconds).Ticks;
}
catch
{
throw new Exception("Error parsing endframe node in XML file. Node inner text "
+ "must be a non negative number.");
}
}
else
throw new Exception("Sub animation in XML file must have either an endtime or endframe node.");
if (endTime < startTime)
throw new Exception("Start time must be <= end time in XML file.");
// Now that we have the start and end times, we associate them with
// start and end indices for each animation track/channel
foreach (KeyValuePair<string, AnimationChannel> k in anim.Channels)
{
// The current difference between the start time and the
// time at the current index
long currentStartDiff;
// The current difference between the end time and the
// time at the current index
long currentEndDiff;
// The difference between the start time and the time
// at the start index
long bestStartDiff=long.MaxValue;
// The difference between the end time and the time at
// the end index
long bestEndDiff=long.MaxValue;
// The start and end indices
int startIndex = -1;
int endIndex = -1;
// Create a new channel and reference the old channel
AnimationChannel newChan = new AnimationChannel();
AnimationChannel oldChan = k.Value;
// Iterate through the keyframes in the channel
for (int i = 0; i < oldChan.Count; i++)
{
// Update the startIndex, endIndex, bestStartDiff,
// and bestEndDiff
long ticks = oldChan[i].Time.Ticks;
currentStartDiff = Math.Abs(startTime - ticks);
currentEndDiff = Math.Abs(endTime - ticks);
if (startIndex == -1 || currentStartDiff<bestStartDiff)
{
startIndex = i;
bestStartDiff = currentStartDiff;
}
if (endIndex == -1 || currentEndDiff<bestEndDiff)
{
endIndex = i;
bestEndDiff = currentEndDiff;
}
}
// Now we have our start and end index for the channel
for (int i = startIndex; i <= endIndex; i++)
{
AnimationKeyframe frame = oldChan[i];
long time;
// Clamp the time so that it can't be less than the
// start time
if (frame.Time.Ticks < startTime)
time = 0;
// Clamp the time so that it can't be greater than the
// end time
else if (frame.Time.Ticks > endTime)
time = endTime - startTime;
else // Else get the time
time = frame.Time.Ticks - startTime;
// Finally... create the new keyframe and add it to the new channel
AnimationKeyframe keyframe = new AnimationKeyframe(
TimeSpan.FromTicks(time),
frame.Transform);
newChan.Add(keyframe);
}
// Add the channel and update the animation duration based on the
// length of the animation track.
newAnim.Channels.Add(k.Key, newChan);
if (newChan[newChan.Count - 1].Time > newAnim.Duration)
newAnim.Duration = newChan[newChan.Count - 1].Time;
}
try
{
// Add the subdived animation to the dictionary.
animDict.Add(newAnim.Name, newAnim);
}
catch
{
throw new Exception("Attempt to add an animation when one by the same name already exists. " +
"Name: " + newAnim.Name);
}
}
}
}
/// <summary>
/// Converts an intermediate format content pipeline AnimationContent
/// object to our runtime AnimationClip format.
/// </summary>
static AnimationClip ProcessAnimation(AnimationContent animation,
Dictionary<string, int> boneMap)
{
List<Keyframe> keyframes = new List<Keyframe>();
// For each input animation channel.
foreach (KeyValuePair<string, AnimationChannel> channel in
animation.Channels)
{
// Look up what bone this channel is controlling.
int boneIndex;
if (!boneMap.TryGetValue(channel.Key, out boneIndex))
{
continue;
//throw new InvalidContentException(string.Format(
// "Found animation for bone '{0}', " +
// "which is not part of the skeleton.", channel.Key));
}
// Convert the keyframe data.
foreach (AnimationKeyframe keyframe in channel.Value.Take(channel.Value.Count - 1))
{
keyframes.Add(new Keyframe(boneIndex, keyframe.Time,
keyframe.Transform));
}
keyframes.Add(new Keyframe(boneIndex, channel.Value.Last().Time, channel.Value.First().Transform));
}
// Sort the merged keyframes by time.
keyframes.Sort(CompareKeyframeTimes);
if (keyframes.Count == 0)
throw new InvalidContentException("Animation has no keyframes.");
if (animation.Duration <= TimeSpan.Zero)
throw new InvalidContentException("Animation has a zero duration.");
return new AnimationClip(/*animation.Duration*/ keyframes.Max(x => x.Time), keyframes);
}
/// <summary>
/// Converts an intermediate format content pipeline AnimationContent
/// object to our runtime AnimationClip format.
/// </summary>
static Clip ProcessAnimation(
AnimationContent animation,
Dictionary<string, int> boneMap,
ClipData clipData)
{
List<Keyframe> keyframes = new List<Keyframe>();
Dictionary<TimeSpan, AnimationControlEvents> controlEvents = new Dictionary<TimeSpan,AnimationControlEvents>();
bool frameTimesFilled = false;
TimeSpan[] frameTimes = new TimeSpan[clipData.LastFrame - clipData.FirstFrame + 1];
TimeSpan syncTime = TimeSpan.Zero;
// For each input animation channel.
foreach (KeyValuePair<string, AnimationChannel> channel in animation.Channels)
{
// Look up what bone this channel is controlling.
int boneIndex;
if (!boneMap.TryGetValue(channel.Key, out boneIndex))
{
// string.Format("Found animation for bone '{0}', which is not part of the skeleton.", channel.Key));
// We can just ignore these channels.
continue;
}
if (!frameTimesFilled)
{
// I guess the frames in the ClipData are specified with a 0-based index?
TimeSpan startTime = channel.Value[clipData.FirstFrame].Time;
for (int i = clipData.FirstFrame; i <= clipData.LastFrame; i++)
{
frameTimes[i - clipData.FirstFrame] = channel.Value[i].Time - startTime;
// Also, let's get the times for the events:
foreach (KeyValuePair<int, AnimationControlEvents> ace in clipData.Events)
{
if (ace.Key == i)
{
controlEvents.Add(frameTimes[i - clipData.FirstFrame], ace.Value);
}
}
// Don't forget to convert the sync frame offset into a time:
if (clipData.SyncFrameOffset == i - clipData.FirstFrame)
syncTime = frameTimes[i - clipData.FirstFrame];
}
if (controlEvents.Count != clipData.Events.Count)
throw new InvalidContentException("The time index of some control events could not be determined.");
frameTimesFilled = true;
}
// Convert the keyframe data.
for (int i = clipData.FirstFrame; i <= clipData.LastFrame; i++)
{
Matrix boneTransform;
if (channel.Value.Count <= i)
{
boneTransform = channel.Value[channel.Value.Count - 1].Transform;
}
else
{
boneTransform = channel.Value[i].Transform;
}
keyframes.Add(new Keyframe(boneIndex, frameTimes[i - clipData.FirstFrame], boneTransform));
}
}
if (keyframes.Count == 0)
throw new InvalidContentException("Animation has no keyframes.");
TimeSpan framePeriod = TimeSpan.Zero;
if (keyframes.Count > 1)
framePeriod = keyframes[1].Time - keyframes[0].Time;
// Sort the merged keyframes by time.
keyframes.Sort(CompareKeyframeTimes);
TimeSpan duration = keyframes[keyframes.Count - 1].Time + framePeriod;
if (duration <= TimeSpan.Zero)
throw new InvalidContentException("Animation has a zero duration.");
return new Clip(duration, keyframes, clipData.Loopable, controlEvents, syncTime);
}