internal SkinnedModelContent(ModelContent model, SkinnedModelBoneContentCollection skeleton,
AnimationClipContentDictionary animationClips)
{
this.model = model;
this.skeleton = skeleton;
this.animationClips = animationClips;
}
public HeightMapInfoContent(ModelContent model, MeshContent terrainMesh, float terrainScale, int terrainWidth, int terrainLength) {
Model = model;
if (terrainMesh == null) {
throw new ArgumentNullException("terrainMesh");
}
if (terrainWidth <= 0) {
throw new ArgumentOutOfRangeException("terrainWidth");
}
if (terrainLength <= 0) {
throw new ArgumentOutOfRangeException("terrainLength");
}
TerrainScale = terrainScale;
Height = new float[terrainWidth, terrainLength];
Normals = new Vector3[terrainWidth, terrainLength];
GeometryContent item = terrainMesh.Geometry[0];
for (int i = 0; i < item.Vertices.VertexCount; i++) {
Vector3 vector3 = item.Vertices.Positions[i];
Vector3 item1 = (Vector3)item.Vertices.Channels[VertexChannelNames.Normal()][i];
int x = (int)(vector3.X / terrainScale + (terrainWidth - 1) / 2f);
int z = (int)(vector3.Z / terrainScale + (terrainLength - 1) / 2f);
Height[x, z] = vector3.Y;
Normals[x, z] = item1;
}
}
public override ModelContent Process(NodeContent input, ContentProcessorContext context)
{
CompileRegularExpressions();
context.Logger.LogMessage("Output Platform: {0}", context.TargetPlatform);
maxScale_ = 0;
maxOffset_ = 0;
BoneContent skeleton = MeshHelper.FindSkeleton(input);
FlattenTransforms(input, skeleton, context);
SkinnedBone[] inverseBindPose = GetInverseBindPose(input, context, skeleton);
context.Logger.LogMessage("Found {0} skinned bones in skeleton.", (inverseBindPose == null) ? 0 : inverseBindPose.Length);
ModelContent output = base.Process(input, context);
if (output.Tag == null)
{
output.Tag = new Dictionary <string, object>();
}
if (FoundSkinning)
{
#if DEBUG
StringBuilder strb = new StringBuilder();
#endif
if (inverseBindPose == null)
{
throw new System.Exception("Could not find skeleton although there is skinned data.");
}
for (int i = 0; i != inverseBindPose.Length; ++i)
{
SkinnedBone sb = inverseBindPose[i];
int q = 0;
sb.Index = -1;
foreach (ModelBoneContent mbc in output.Bones)
{
if (mbc.Name == sb.Name)
{
sb.Index = mbc.Index;
break;
}
++q;
}
if (sb.Index == -1)
{
throw new System.ArgumentException(
String.Format("Can't find the index for animated bone named {0}.", sb.Name));
}
inverseBindPose[i] = sb;
}
((Dictionary <string, object>)output.Tag).Add("InverseBindPose", inverseBindPose);
}
((Dictionary <string, object>)output.Tag).Add("AnimationSet",
BuildAnimationSet(input, ref output, context));
((Dictionary <string, object>)output.Tag).Add("BoundsInfo",
new BoundsInfo(maxScale_, maxOffset_));
return(output);
}
public override ModelContent Process(NodeContent input, ContentProcessorContext context)
{
model = base.Process(input, context);
AnimationClips clips = ProcessAnimations(model, input, context);
model.Tag = clips;
return model;
}
/// <summary>
/// Calculate a bounding box for the model.
/// </summary>
/// <param name="model">The model to calculate AABBs for</param>
public static void CalculateBoundingBox(NodeContent input, ModelContent model)
{
BoundingBox box = new BoundingBox();
CalculateBoundingBox(input, ref box);
if (model.Tag == null)
model.Tag = new Dictionary<string, object>();
(model.Tag as Dictionary<string, object>).Add("BoundingBox", box);
}
public override ModelContent Process(NodeContent input, ContentProcessorContext context)
{
BoneContent skeleton = ProcessSkeleton(input);
SwapSkinMaterials(input);
model = base.Process(input, context);
ProcessAnimations(model, input, context);
// Add the extra content to the model
model.Tag = modelExtra;
return model;
}
/// <summary>
/// The function to process a model from original content into model content for export
/// </summary>
/// <param name="input"></param>
/// <param name="context"></param>
/// <returns></returns>
public override ModelContent Process(NodeContent input, ContentProcessorContext context)
{
// Process the skeleton for skinned character animation
BoneContent skeleton = ProcessSkeleton(input);
SwapSkinnedMaterial(input);
model = base.Process(input, context);
ProcessAnimations(model, input, context,input.Identity);
// Add the extra content to the model
model.Tag = modelExtra;
return model;
}
private BoundingBox GetBoundingBox(ModelContent model)
{
Vector3 min = new Vector3(float.MaxValue, float.MaxValue, float.MaxValue);
Vector3 max = new Vector3(float.MinValue, float.MinValue, float.MinValue);
foreach (ModelMeshContent mesh in model.Meshes)
{
foreach (ModelMeshPartContent part in mesh.MeshParts)
{
for (int i = 0; i < part.NumVertices; i++)
{
Vector3 pos = GetVertexPosition(part.VertexBuffer, i);
min = Vector3.Min(min, pos);
max = Vector3.Max(max, pos);
}
}
}
return(new BoundingBox(min, max));
}
/// <summary>
/// Entry point for animation processing.
/// </summary>
/// <param name="model"></param>
/// <param name="input"></param>
/// <param name="context"></param>
private void ProcessAnimations(ModelContent model, NodeContent input, ContentProcessorContext context)
{
// First build a lookup table so we can determine the
// index into the list of bones from a bone name.
for (int i = 0; i < model.Bones.Count; i++)
{
bones[model.Bones[i].Name] = i;
}
// For saving the bone transforms
boneTransforms = new Matrix[model.Bones.Count];
//
// Collect up all of the animation data
//
ProcessAnimationsRecursive(input);
// Ensure there is always a clip, even if none is included in the FBX
// That way we can create poses using FBX files as one-frame
// animation clips
if (modelExtra.Clips.Count == 0)
{
AnimationClip clip = new AnimationClip();
modelExtra.Clips.Add(clip);
string clipName = "Take 001";
// Retain by name
clips[clipName] = clip;
clip.Name = clipName;
foreach (ModelBoneContent bone in model.Bones)
{
AnimationClip.Bone clipBone = new AnimationClip.Bone();
clipBone.Name = bone.Name;
clip.Bones.Add(clipBone);
}
}
// Ensure all animations have a first key frame for every bone
foreach (AnimationClip clip in modelExtra.Clips)
{
foreach (int b in bones.Values)
{
List<AnimationClip.Keyframe> keyframes = clip.Bones[b].Keyframes;
if (keyframes.Count == 0 || keyframes[0].Time > 0)
{
AnimationClip.Keyframe keyframe = new AnimationClip.Keyframe();
keyframe.Time = 0;
keyframe.SetTransform(boneTransforms[b]);
keyframes.Insert(0, keyframe);
}
}
}
}
private ModelContent SkinnedData(ModelContent model, NodeContent input, ContentProcessorContext context, MeshMetaData metadata)
{
// Find the skeleton
BoneContent skeleton = MeshHelper.FindSkeleton(input);
if (skeleton != null)
{
// Read the bind pose and skeleton hierarchy data.
IList<BoneContent> bones = MeshHelper.FlattenSkeleton(skeleton);
// Set up the bone matrices and index lists
List<Matrix> bindPose = new List<Matrix>();
List<Matrix> inverseBindPose = new List<Matrix>();
List<int> skeletonHierarchy = new List<int>();
Dictionary<String, int> boneIndices = new Dictionary<String, int>();
Dictionary<String, AnimationClip> animationClips = new Dictionary<String, AnimationClip>();
// Extract the bind pose transforms, inverse bind pose transforms,
// and parent bone index of each bone in order
foreach (BoneContent bone in bones)
{
bindPose.Add(bone.Transform);
inverseBindPose.Add(Matrix.Invert(bone.AbsoluteTransform));
skeletonHierarchy.Add(bones.IndexOf(bone.Parent as BoneContent));
boneIndices.Add(bone.Name, boneIndices.Count);
}
// Convert animation data to our runtime format.
animationClips = ProcessAnimations(skeleton.Animations, bones);
// Save skinndd data
metadata.SkinningData = new SkinningData(animationClips, bindPose, inverseBindPose, skeletonHierarchy, boneIndices);
}
// Save meta data
model.Tag = metadata;
// Return the model with the custom animation data
return model;
}
/// <summary>
/// The workhorse of the animation processor. It loops through all
/// animations, all tracks, and all keyframes, and converts to the format
/// expected by the runtime animation classes.
/// </summary>
/// <param name="input">The NodeContent to process. Comes from the base ModelProcessor.</param>
/// <param name="output">The ModelContent that was produced. You don't typically change this.</param>
/// <param name="context">The build context (logger, etc).</param>
/// <returns>An allocated AnimationSet with the animations to include.</returns>
public virtual AnimationSet BuildAnimationSet(NodeContent input, ref ModelContent output,
ContentProcessorContext context)
{
AnimationSet ret = new AnimationSet();
if (!DoAnimations)
{
context.Logger.LogImportantMessage("DoAnimation is set to false for {0}; not generating animations.", input.Name);
return(ret);
}
// go from name to index
Dictionary <string, ModelBoneContent> nameToIndex = new Dictionary <string, ModelBoneContent>();
foreach (ModelBoneContent mbc in output.Bones)
{
nameToIndex.Add(GetBoneName(mbc), mbc);
}
AnimationContentDictionary adict = MergeAnimatedBones(input);
if (adict == null || adict.Count == 0)
{
context.Logger.LogWarning("http://kwxport.sourceforge.net/", input.Identity,
"Model processed with AnimationProcessor has no animations.");
return(ret);
}
foreach (AnimationContent ac in adict.Values)
{
if (!IncludeAnimation(ac))
{
context.Logger.LogImportantMessage(String.Format("Not including animation named {0}.", ac.Name));
continue;
}
context.Logger.LogImportantMessage(
"Processing animation {0} duration {1} sample rate {2} reduction tolerance {3}.",
ac.Name, ac.Duration, SampleRate, Tolerance);
AnimationChannelDictionary acdict = ac.Channels;
AnimationTrackDictionary tracks = new AnimationTrackDictionary();
foreach (string name in acdict.Keys)
{
if (!IncludeTrack(ac, name))
{
context.Logger.LogImportantMessage(String.Format("Not including track named {0}.", name));
continue;
}
int ix = 0;
AnimationChannel achan = acdict[name];
int bix = nameToIndex[name].Index;
context.Logger.LogMessage("Processing bone {0}:{1}.", name, bix);
AnimationTrack at;
if (tracks.TryGetValue(bix, out at))
{
throw new System.ArgumentException(
String.Format("Bone index {0} is used by multiple animations in the same clip (name {1}).",
bix, name));
}
// Sample at given frame rate from 0 .. Duration
List <Keyframe> kfl = new List <Keyframe>();
int nFrames = (int)Math.Floor(ac.Duration.TotalSeconds * SampleRate + 0.5);
for (int i = 0; i < nFrames; ++i)
{
Keyframe k = SampleChannel(achan, i / SampleRate, ref ix);
kfl.Add(k);
}
// Run keyframe elimitation
Keyframe[] frames = kfl.ToArray();
int nReduced = 0;
if (tolerance_ > 0)
{
nReduced = ReduceKeyframes(frames, tolerance_);
}
if (nReduced > 0)
{
context.Logger.LogMessage("Reduced '{2}' from {0} to {1} frames.",
frames.Length, frames.Length - nReduced, name);
}
// Create an AnimationTrack
at = new AnimationTrack(bix, frames);
tracks.Add(bix, at);
}
Animation a = new Animation(ac.Name, tracks, SampleRate);
ret.AddAnimation(a);
}
// build the special "identity" and "bind pose" animations
AnimationTrackDictionary atd_id = new AnimationTrackDictionary();
AnimationTrackDictionary atd_bind = new AnimationTrackDictionary();
foreach (KeyValuePair <string, ModelBoneContent> nip in nameToIndex)
{
Keyframe[] frames_id = new Keyframe[2];
frames_id[0] = new Keyframe();
frames_id[1] = new Keyframe();
AnimationTrack at_id = new AnimationTrack(nip.Value.Index, frames_id);
atd_id.Add(nip.Value.Index, at_id);
Keyframe[] frames_bind = new Keyframe[2];
Matrix mat = nip.Value.Transform;
frames_bind[0] = Keyframe.CreateFromMatrix(mat);
frames_bind[1] = new Keyframe();
frames_bind[1].CopyFrom(frames_bind[0]);
AnimationTrack at_bind = new AnimationTrack(nip.Value.Index, frames_bind);
atd_bind.Add(nip.Value.Index, at_bind);
}
ret.AddAnimation(new Animation("$id$", atd_id, 1.0f));
ret.AddAnimation(new Animation("$bind$", atd_bind, 1.0f));
return(ret);
}
private SkinInfoContentCollection[] ProcessSkinInfo(ModelContent model)
{
SkinInfoContentCollection[] info = new SkinInfoContentCollection[model.Meshes.Count];
Dictionary<string, int> boneDict = new Dictionary<string,int>();
foreach (ModelBoneContent b in model.Bones)
{
if (b.Name != null && !boneDict.ContainsKey(b.Name))
boneDict.Add(b.Name, b.Index);
}
for (int i = 0; i < info.Length; i++)
{
info[i] = new SkinInfoContentCollection();
BoneIndexer indexer = indexers[i];
ReadOnlyCollection<string> skinnedBoneNames = indexer.SkinnedBoneNames;
Matrix[] absoluteTransforms = new Matrix[model.Bones.Count];
CalculateAbsoluteTransforms(model.Bones[0], absoluteTransforms);
Matrix absoluteMeshTransform;
if (absoluteMeshTransforms == null)
{
absoluteMeshTransform = absoluteTransforms[model.Meshes[i].ParentBone.Index];
}
else
{
absoluteMeshTransform = absoluteMeshTransforms[i];
}
for (int j = 0; j < skinnedBoneNames.Count; j++)
{
string name = skinnedBoneNames[j];
SkinInfoContent content = new SkinInfoContent();
content.BoneIndex = boneDict[name];
content.PaletteIndex = indexer.GetBoneIndex(name);
content.InverseBindPoseTransform = absoluteMeshTransform *
Matrix.Invert(absoluteTransforms[boneDict[name]]);
content.BoneName = name;
info[i].Add(content);
}
}
return info;
}
private SkinInfoContentCollection[] ProcessSkinInfo(ModelContent model)
{
SkinInfoContentCollection[] info = new SkinInfoContentCollection[model.Meshes.Count];
Dictionary<string, int> boneDict = new Dictionary<string,int>();
//if (model.Bones.Count > maximumNumberOfPCBones)
//{
// throw new Exception("There are too many bones! You have " + model.Bones.Count + " and you can only have " + maximumNumberOfPCBones);
//}
foreach (ModelBoneContent b in model.Bones)
{
if (b.Name != null && !boneDict.ContainsKey(b.Name))
boneDict.Add(b.Name, b.Index);
}
for (int i = 0; i < info.Length; i++)
{
info[i] = new SkinInfoContentCollection();
BoneIndexer indexer = indexers[i];
ReadOnlyCollection<string> skinnedBoneNames = indexer.SkinnedBoneNames;
Matrix[] absoluteTransforms = new Matrix[model.Bones.Count];
CalculateAbsoluteTransforms(model.Bones[0], absoluteTransforms);
Matrix absoluteMeshTransform;
if (absoluteMeshTransforms == null)
{
absoluteMeshTransform = absoluteTransforms[model.Meshes[i].ParentBone.Index];
}
else
{
absoluteMeshTransform = absoluteMeshTransforms[i];
}
for (int j = 0; j < skinnedBoneNames.Count; j++)
{
string name = skinnedBoneNames[j];
SkinInfoContent content = new SkinInfoContent();
try
{
content.BoneIndex = boneDict[name];
}
catch (KeyNotFoundException knfe)
{
string error = "Could not find a bone by the name of " + name + ". This is skinned bone index " + j + ".";
error += "\nThere are " + skinnedBoneNames.Count + " skinned bones:";
for (int boneIndex = 0; boneIndex < skinnedBoneNames.Count; boneIndex++)
{
error += "\n " + skinnedBoneNames[boneIndex];
}
error += "\nThere are " + model.Bones.Count + " bones:";
foreach (ModelBoneContent b in model.Bones)
{
error += "\n " + b.Name;
}
throw new KeyNotFoundException(error);
}
content.PaletteIndex = indexer.GetBoneIndex(name);
content.InverseBindPoseTransform = absoluteMeshTransform *
Matrix.Invert(absoluteTransforms[boneDict[name]]);
content.BoneName = name;
info[i].Add(content);
}
}
return info;
}
/// <summary>
/// The workhorse of the animation processor. It loops through all
/// animations, all tracks, and all keyframes, and converts to the format
/// expected by the runtime animation classes.
/// </summary>
/// <param name="input">The NodeContent to process. Comes from the base ModelProcessor.</param>
/// <param name="output">The ModelContent that was produced. You don't typically change this.</param>
/// <param name="context">The build context (logger, etc).</param>
/// <returns>An allocated AnimationSet with the animations to include.</returns>
public virtual AnimationSet BuildAnimationSet(NodeContent input, ref ModelContent output,
ContentProcessorContext context)
{
AnimationSet ret = new AnimationSet();
if (!DoAnimations)
{
context.Logger.LogImportantMessage("DoAnimation is set to false for {0}; not generating animations.", input.Name);
return ret;
}
// go from name to index
Dictionary<string, ModelBoneContent> nameToIndex = new Dictionary<string, ModelBoneContent>();
foreach (ModelBoneContent mbc in output.Bones)
nameToIndex.Add(GetBoneName(mbc), mbc);
AnimationContentDictionary adict = MergeAnimatedBones(input);
if (adict == null || adict.Count == 0)
{
context.Logger.LogWarning("http://kwxport.sourceforge.net/", input.Identity,
"Model processed with AnimationProcessor has no animations.");
return ret;
}
foreach (AnimationContent ac in adict.Values)
{
if (!IncludeAnimation(ac))
{
context.Logger.LogImportantMessage(String.Format("Not including animation named {0}.", ac.Name));
continue;
}
context.Logger.LogImportantMessage(
"Processing animation {0} duration {1} sample rate {2} reduction tolerance {3}.",
ac.Name, ac.Duration, SampleRate, Tolerance);
AnimationChannelDictionary acdict = ac.Channels;
AnimationTrackDictionary tracks = new AnimationTrackDictionary();
TimeSpan longestUniqueDuration = new TimeSpan(0);
foreach (string name in acdict.Keys)
{
if (!IncludeTrack(name))
{
context.Logger.LogImportantMessage(String.Format("Not including track named {0}.", name));
continue;
}
int ix = 0;
AnimationChannel achan = acdict[name];
int bix = nameToIndex[name].Index;
context.Logger.LogMessage("Processing bone {0}:{1}.", name, bix);
AnimationTrack at;
if (tracks.TryGetValue(bix, out at))
{
throw new System.ArgumentException(
String.Format("Bone index {0} is used by multiple animations in the same clip (name {1}).",
bix, name));
}
// Sample at given frame rate from 0 .. Duration
List<Keyframe> kfl = new List<Keyframe>();
int nFrames = (int)Math.Floor(ac.Duration.TotalSeconds * SampleRate + 0.5);
for (int i = 0; i < nFrames; ++i)
{
Keyframe k = SampleChannel(achan, i / SampleRate, ref ix);
kfl.Add(k);
}
// Run keyframe elimitation
Keyframe[] frames = kfl.ToArray();
int nReduced = 0;
if (tolerance_ > 0)
nReduced = ReduceKeyframes(frames, tolerance_);
if (nReduced > 0)
context.Logger.LogMessage("Reduced '{2}' from {0} to {1} frames.",
frames.Length, frames.Length - nReduced, name);
// Create an AnimationTrack
at = new AnimationTrack(bix, frames);
Debug.Assert(name != null);
at.Name = name;
tracks.Add(bix, at);
}
if (ShouldTrimAnimation(ac))
{
TrimAnimationTracks(ac.Name, tracks, context);
}
Animation a = new Animation(ac.Name, tracks, SampleRate);
ret.AddAnimation(a);
}
// build the special "identity" and "bind pose" animations
AnimationTrackDictionary atd_id = new AnimationTrackDictionary();
AnimationTrackDictionary atd_bind = new AnimationTrackDictionary();
foreach (KeyValuePair<string, ModelBoneContent> nip in nameToIndex)
{
if (!IncludeTrack(nip.Key))
continue;
Keyframe[] frames_id = new Keyframe[2];
frames_id[0] = new Keyframe();
frames_id[1] = new Keyframe();
AnimationTrack at_id = new AnimationTrack(nip.Value.Index, frames_id);
at_id.Name = nip.Key;
atd_id.Add(nip.Value.Index, at_id);
Keyframe[] frames_bind = new Keyframe[2];
Matrix mat = nip.Value.Transform;
frames_bind[0] = Keyframe.CreateFromMatrix(mat);
frames_bind[1] = new Keyframe();
frames_bind[1].CopyFrom(frames_bind[0]);
AnimationTrack at_bind = new AnimationTrack(nip.Value.Index, frames_bind);
at_bind.Name = nip.Key;
atd_bind.Add(nip.Value.Index, at_bind);
}
ret.AddAnimation(new Animation("$id$", atd_id, 1.0f));
ret.AddAnimation(new Animation("$bind$", atd_bind, 1.0f));
return ret;
}
public InstancedSkinnedModelContent(ModelContent model,
InstancedSkinningDataContent instancedSkinningInfo)
{
this.modelContent = model;
this.instancedSkinningData = instancedSkinningInfo;
}
/// <summary>
/// The function to process a model from original content into model content for export
/// </summary>
/// <param name="input"></param>
/// <param name="context"></param>
/// <returns></returns>
public override ModelContent Process(NodeContent input, ContentProcessorContext context)
{
if (input == null) throw new ArgumentNullException("input");
directory = Path.GetDirectoryName(input.Identity.SourceFilename);
LookUpTextures(input);
// Process the skeleton for skinned character animation
BoneContent skeleton = ProcessSkeleton(input);
SwapSkinnedMaterial(input);
model = base.Process(input, context);
ProcessAnimations(model, input, context,input.Identity);
List<Vector3> vertices = new List<Vector3>();
AddVerticesToList(input, vertices);
modelExtra.boundingBox = BoundingBox.CreateFromPoints(vertices);
modelExtra.boundingSphere = BoundingSphere.CreateFromPoints(vertices);
// Add the extra content to the model
model.Tag = modelExtra;
List<Vector3[]> meshVertices = new List<Vector3[]>();
meshVertices = AddModelMeshVertexArrayToList(input, meshVertices);
int i = 0;
foreach (ModelMeshContent mesh in model.Meshes)
{
List<Vector3> modelMeshVertices = new List<Vector3>();
foreach (ModelMeshPartContent part in mesh.MeshParts)
{
if (i < meshVertices.Count)
modelMeshVertices.AddRange(meshVertices[i++]);
}
mesh.Tag = modelMeshVertices.ToArray();
}
return model;
}
public override ModelContent Process(NodeContent input, ContentProcessorContext context)
{
if (skinned)
{
ProcessSkeleton(input);
}
model = base.Process(input, context);
AnimationClips clips = ProcessAnimations(model, input, context);
clips.SkelToBone = skelToBone;
model.Tag = clips;
return model;
}
private AnimationClips ProcessAnimations(ModelContent model, NodeContent input, ContentProcessorContext context)
{
//first build a lookup table so we can determine the index into the list of bones from a bone name
for (int i = 0; i < model.Bones.Count; i++)
{
bones[model.Bones[i].Name] = i;
}
AnimationClips animationClips = new AnimationClips();
ProcessAnimationRecursive(input, animationClips);
return animationClips;
}
/// <summary>
/// Converts an intermediate format content pipeline AnimationContent
/// object to our runtime AnimationClip format.
/// </summary>
static ModelAnimationClip ProcessAnimation(
string animationName,
Dictionary<string, int> boneMap,
NodeContent input,
ModelContent model)
{
List<ModelKeyframe> keyframes = new List<ModelKeyframe>();
TimeSpan duration = TimeSpan.Zero;
AddTransformationNodes(animationName, boneMap, input, keyframes, ref duration);
// Sort the merged keyframes by time.
keyframes.Sort(CompareKeyframeTimes);
if (keyframes.Count == 0)
throw new InvalidContentException("Animation has no keyframes.");
if (duration <= TimeSpan.Zero)
throw new InvalidContentException("Animation has a zero duration.");
return new ModelAnimationClip(duration, keyframes);
}
/// <summary>
/// Converts an intermediate format content pipeline AnimationContentDictionary
/// object to our runtime AnimationClip format.
/// </summary>
static void ProcessAnimations(
NodeContent input,
ModelContent model,
Dictionary<string, ModelAnimationClip> animationClips,
Dictionary<string, ModelAnimationClip> rootClips)
{
// Build up a table mapping bone names to indices.
Dictionary<string, int> boneMap = new Dictionary<string, int>();
for (int i = 0; i < model.Bones.Count; i++)
{
string boneName = model.Bones[i].Name;
if (!string.IsNullOrEmpty(boneName))
boneMap.Add(boneName, i);
}
// Convert each animation in the root of the object
foreach (KeyValuePair<string, AnimationContent> animation in input.Animations)
{
ModelAnimationClip processed = ProcessRootAnimation(animation.Value, model.Bones[0].Name);
rootClips.Add(animation.Key, processed);
}
// Get the unique names of the animations on the mesh children
List<string> animationNames = new List<string>();
AddAnimationNodes(animationNames, input);
// Now create those animations
foreach (string key in animationNames)
{
ModelAnimationClip processed = ProcessAnimation(key, boneMap, input, model);
animationClips.Add(key, processed);
}
}
private AnimationClips ProcessAnimations(ModelContent model,
NodeContent input, ContentProcessorContext context)
{
// First build a lookup table so we can determine the
// index into the list of bones from a bone name.
for (int i = 0; i < model.Bones.Count; i++)
{
bones[model.Bones[i].Name] = i;
}
AnimationClips animationClips = new AnimationClips();
ProcessAnimationsRecursive(input, animationClips);
// Ensure all animations have a first key frame for every bone
foreach (AnimationClips.Clip clip in animationClips.Clips.Values)
{
for (int b = 0; b < bones.Count; b++)
{
List<AnimationClips.Keyframe> keyframes = clip.Keyframes[b];
if (keyframes.Count == 0 || keyframes[0].Time > 0)
{
AnimationClips.Keyframe keyframe = new AnimationClips.Keyframe();
keyframe.Time = 0;
Matrix transform = model.Bones[b].Transform;
transform.Right = Vector3.Normalize(transform.Right);
transform.Up = Vector3.Normalize(transform.Up);
transform.Backward = Vector3.Normalize(transform.Backward);
keyframe.Rotation = Quaternion.CreateFromRotationMatrix(transform);
keyframe.Translation = transform.Translation;
keyframes.Insert(0, keyframe);
}
}
}
return animationClips;
}
private void FlattenNormals(ModelContent model)
{
//This stuff re-calculates surface normals to give a low-poly flat shading effect
foreach (ModelMeshContent mesh in model.Meshes)
{
foreach (ModelMeshPartContent part in mesh.MeshParts)
{
IndexCollection indices = part.IndexBuffer;
for (int i = 0; i < indices.Count; i += 3)
{
Vector3 p1 = GetVertexPosition(part.VertexBuffer, indices[i + 0]);
Vector3 p2 = GetVertexPosition(part.VertexBuffer, indices[i + 1]);
Vector3 p3 = GetVertexPosition(part.VertexBuffer, indices[i + 2]);
Vector3 v1 = p2 - p1;
Vector3 v2 = p3 - p1;
Vector3 normal = Vector3.Cross(v1, v2);
normal.Normalize();
for (int j = 0; j < 3; j++)
{
for (int k = 0; k < 3; k++)
{
SetVertexNormalCoord(part.VertexBuffer, i + j, normal, k);
}
}
}
/*
* byte[] vertices = part.VertexBuffer.VertexData;
* //We only have the packed vertex data available so we need to parse the individual bytes
* for (int i = 0; i < part.NumVertices; i++)
* {
* float[] pos = new float[3];
* float[] normal = new float[3];
*
* for (int j = 0; j < 3; j++)
* {
* int posOffset = i * (int)part.VertexBuffer.VertexDeclaration.VertexStride + j * 4; //4 bytes per float
* int normalOffset = posOffset + 12; //Normal is after the 3 position words
*
* pos[j] = System.BitConverter.ToSingle(vertices, posOffset);
* normal[j] = System.BitConverter.ToSingle(vertices, normalOffset);
* }
*
* Console.WriteLine("=====");
* }*/
//byte[] newArray = new[] { vertices[3], vertices[2], vertices[1], vertices[0] };
/*short[] indices = new short[part.IndexBuffer.IndexCount];
* part.IndexBuffer.GetData<short>(indices);
*
* for (int i = 0; i < indices.Length; i += 3)
* {
* Vector3 p1 = vertices[indices[i]].Position;
* Vector3 p2 = vertices[indices[i + 1]].Position;
* Vector3 p3 = vertices[indices[i + 2]].Position;
*
* Vector3 v1 = p2 - p1;
* Vector3 v2 = p3 - p1;
* Vector3 normal = Vector3.Cross(v1, v2);
*
* normal.Normalize();
*
* vertices[indices[i]].Normal = normal;
* vertices[indices[i + 1]].Normal = normal;
* vertices[indices[i + 2]].Normal = normal;
* }
*
* part.VertexBuffer.SetData<VertexPositionNormalTexture>(vertices);*/
}
}
}
/// <summary>
/// Entry point for animation processing.
/// </summary>
/// <param name="model"></param>
/// <param name="input"></param>
/// <param name="context"></param>
private void ProcessAnimations(ModelContent model, NodeContent input, ContentProcessorContext context, ContentIdentity sourceIdentity)
{
// First build a lookup table so we can determine the
// index into the list of bones from a bone name.
for (int i = 0; i < model.Bones.Count; i++)
{
bones[model.Bones[i].Name] = i;
}
// For saving the bone transforms
boneTransforms = new Matrix[model.Bones.Count];
//
// Collect up all of the animation data
//
ProcessAnimationsRecursive(input);
// Check to see if there's an animation clip definition
// Here, we're checking for a file with the _Anims suffix.
// So, if your model is named dude.fbx, we'd add dude_Anims.xml in the same folder
// and the pipeline will see the file and use it to override the animations in the
// original model file.
string SourceModelFile = sourceIdentity.SourceFilename;
string SourcePath = Path.GetDirectoryName(SourceModelFile);
string AnimFilename = Path.GetFileNameWithoutExtension(SourceModelFile);
AnimFilename += "_Anims.xml";
string AnimPath = Path.Combine(SourcePath, AnimFilename);
if (File.Exists(AnimPath))
{
// Add the filename as a dependency, so if it changes, the model is rebuilt
context.AddDependency(AnimPath);
// Load the animation definition from the XML file
AnimationDefinition AnimDef = context.BuildAndLoadAsset<XmlImporter, AnimationDefinition>(new ExternalReference<XmlImporter>(AnimPath), null);
if (modelExtra.Clips.Count > 0) //if there are some animations in our model
{
foreach (AnimationDefinition.ClipPart Part in AnimDef.ClipParts)
{
// Grab the main clip that we are using and copy to MainClip
AnimationClip MainClip = new AnimationClip();
float StartTime = GetTimeSpanForFrame(Part.StartFrame, AnimDef.OriginalFrameCount, modelExtra.Clips[AnimDef.OriginalClipName].Duration);
float EndTime = GetTimeSpanForFrame(Part.EndFrame, AnimDef.OriginalFrameCount, modelExtra.Clips[AnimDef.OriginalClipName].Duration);
MainClip.Duration = EndTime-StartTime;
MainClip.Name = modelExtra.Clips[AnimDef.OriginalClipName].Name;
// Process each of our new animation clip parts
for (int i = 0; i < modelExtra.Clips[AnimDef.OriginalClipName].Bones.Count; i++)
{
AnimationClip.Bone clipBone = new AnimationClip.Bone();
clipBone.Name = modelExtra.Clips[AnimDef.OriginalClipName].Bones[i].Name;
LinkedList<AnimationClip.Keyframe> keyframes = new LinkedList<AnimationClip.Keyframe>();
if (modelExtra.Clips[AnimDef.OriginalClipName].Bones[i].Keyframes.Count != 0)
{
for (int j = 0; j < modelExtra.Clips[AnimDef.OriginalClipName].Bones[i].Keyframes.Count; j++)
{
if ((modelExtra.Clips[AnimDef.OriginalClipName].Bones[i].Keyframes[j].Time >= StartTime) && (modelExtra.Clips[AnimDef.OriginalClipName].Bones[i].Keyframes[j].Time <= EndTime))
{
AnimationClip.Keyframe frame = new AnimationClip.Keyframe();
frame.Rotation = modelExtra.Clips[AnimDef.OriginalClipName].Bones[i].Keyframes[j].Rotation;
frame.Time = modelExtra.Clips[AnimDef.OriginalClipName].Bones[i].Keyframes[j].Time - StartTime;
frame.Translation = modelExtra.Clips[AnimDef.OriginalClipName].Bones[i].Keyframes[j].Translation;
keyframes.AddLast(frame);
//clipBone.Keyframes.Add(frame);
}
}
}
// LinearKeyframeReduction(keyframes);
clipBone.Keyframes = keyframes.ToList<AnimationClip.Keyframe>();
MainClip.Bones.Add(clipBone);
}
modelExtra.Clips.Add(Part.ClipName, MainClip);
}
}
}
// Ensure there is always a clip, even if none is included in the FBX
// That way we can create poses using FBX files as one-frame
// animation clips
if (modelExtra.Clips.Count == 0)
{
AnimationClip clip = new AnimationClip();
modelExtra.Clips.Add("Take 001",clip);
string clipName = "Take 001";
// Retain by name
clips[clipName] = clip;
clip.Name = clipName;
foreach (ModelBoneContent bone in model.Bones)
{
AnimationClip.Bone clipBone = new AnimationClip.Bone();
clipBone.Name = bone.Name;
clip.Bones.Add(clipBone);
}
}
//Ensure all animations have a first key frame for every bone
foreach (KeyValuePair<string,AnimationClip> clip in modelExtra.Clips)
{
for (int b = 0; b < bones.Count; b++)
{
List<AnimationClip.Keyframe> keyframes = clip.Value.Bones[b].Keyframes;
if (keyframes.Count == 0 || keyframes[0].Time > 0)
{
AnimationClip.Keyframe keyframe = new AnimationClip.Keyframe();
keyframe.Time = 0;
keyframe.Transform = boneTransforms[b];
keyframes.Insert(0, keyframe);
}
}
}
}
private static void FindTextureName(ModelContent model, ContentProcessorContext context, MeshData meshData)
{
string[] dirSeparators = { context.OutputDirectory };
int counter = 0;
for (int i = 0; i < model.Meshes.Count; i++)
{
ModelMeshContent mesh = model.Meshes[i];
for (int j = 0; j < mesh.MeshParts.Count; j++)
{
ModelMeshPartContent part = mesh.MeshParts[j];
SubMeshData subData = meshData.SubMeshDatas[counter];
foreach (KeyValuePair<string, ExternalReference<TextureContent>> textureRef in part.Material.Textures)
{
ExternalReference<TextureContent> texture = textureRef.Value;
string textureName = texture.Filename.Split(dirSeparators, StringSplitOptions.RemoveEmptyEntries)[0];
string finalName = textureName.Split(ExtensionSeparators, StringSplitOptions.RemoveEmptyEntries)[0];
subData.TexturesName.Add(textureRef.Key, finalName);
}
counter++;
}
}
}