private static void CreateBoneTable(GameSkeleton skeleton, int[] bones, ref AnimationFile animFile)
{
// Add the bones
for (int i = 0; i < bones.Length; i++)
{
var originalBoneIndex = bones[i];
animFile.Bones[i] = new AnimationFile.BoneInfo()
{
Id = i, Name = skeleton.BoneNames[originalBoneIndex], ParentId = skeleton.GetParentBone(originalBoneIndex)
};
}
for (int i = 0; i < bones.Length; i++)
{
if (animFile.Bones[i].ParentId == -1)
{
continue;
}
var parentName = skeleton.BoneNames[animFile.Bones[i].ParentId];
var indexOf = animFile.Bones.Select((value, index) => new { value.Name, index })
.Where(pair => pair.Name == parentName)
.Select(pair => pair.index + 1)
.FirstOrDefault() - 1;
animFile.Bones[i].ParentId = indexOf;
}
}
public static AnimationFrame Sample(float t, GameSkeleton skeleton, List <AnimationClip> animationClips)
{
try
{
var clampedT = EnsureRange(t, 0, 1);
int frameIndex = 0;
float frameIterpolation = 0;
if (animationClips != null)
{
int maxFrames = animationClips[0].DynamicFrames.Count() - 1;
if (maxFrames < 0)
{
maxFrames = 0;
}
float frameWithLeftover = maxFrames * clampedT;
float clampedFrame = (float)Math.Floor(frameWithLeftover);
frameIndex = (int)(clampedFrame);
frameIterpolation = frameWithLeftover - clampedFrame;
}
return(Sample(frameIndex, frameIterpolation, skeleton, animationClips));
}
catch (Exception e)
{
ILogger logger = Logging.Create <AnimationSampler>();
logger.Error(e.Message);
throw;
}
}
public static AnimationFrame Sample(int frameIndex, float frameIterpolation, GameSkeleton skeleton, AnimationClip animationClip)
{
return(Sample(frameIndex, frameIterpolation, skeleton, new List <AnimationClip>()
{
animationClip
}));
}
public Matrix GetSkeletonAnimatedWorldDiff(GameSkeleton gameSkeleton, int boneIndex0, int boneIndex1)
{
var bone0Transform = GetSkeletonAnimatedWorld(gameSkeleton, boneIndex0);
var bone1Transform = GetSkeletonAnimatedWorld(gameSkeleton, boneIndex1);
return(bone1Transform * Matrix.Invert(bone0Transform));
}
public void SetAnimation(AnimationClip animation, GameSkeleton skeleton)
{
if (animation == null)
{
SetAnimationArray(null, skeleton);
}
else
{
SetAnimationArray(new List <AnimationClip>()
{
animation
}, skeleton);
}
}
public void SetAnimationArray(List <AnimationClip> animation, GameSkeleton skeleton)
{
if (animation != null)
{
// Make sure animation fits
var numBones = skeleton.BoneCount;
var maxAnimBones = Math.Max(animation.Select(x => x.RotationMappings.Count).Max(), animation.Select(x => x.TranslationMappings.Count).Max());
if (maxAnimBones > numBones)
{
throw new Exception("This animation does not work for this skeleton!");
}
}
_skeleton = skeleton;
_animationClips = animation;
_timeSinceStart = TimeSpan.FromSeconds(0);
UpdateAnimationFrame();
}
public static AnimationFile ExtractPartOfSkeleton(GameSkeleton skeleton, string skeletonName, int[] bones)
{
// Header
var animFile = new AnimationFile();
animFile.Header.SkeletonName = skeletonName;
animFile.Header.AnimationTotalPlayTimeInSec = 0.1f;
animFile.Bones = new AnimationFile.BoneInfo[bones.Length];
CreateBoneTable(skeleton, bones, ref animFile);
// Create the keyframe
animFile.DynamicFrames = new List <AnimationFile.Frame>();
var frame = new AnimationFile.Frame();
animFile.DynamicFrames.Add(frame);
// Populate the keyframe
for (int i = 0; i < bones.Length; i++)
{
var originalBoneIndex = bones[i];
if (i == 0)
{
var worldTrans = skeleton.GetWorldTransform(originalBoneIndex);
var res = worldTrans.Decompose(out Vector3 scale, out var rot, out var trans);
frame.Transforms.Add(new RmvVector3(trans.X, trans.Y, trans.Z));
frame.Quaternion.Add(new RmvVector4(rot.X, rot.Y, rot.Z, rot.W));
}
else
{
var trans = skeleton.Translation[originalBoneIndex];
var rot = skeleton.Rotation[originalBoneIndex];
frame.Transforms.Add(new RmvVector3(trans.X, trans.Y, trans.Z));
frame.Quaternion.Add(new RmvVector4(rot.X, rot.Y, rot.Z, rot.W));
}
}
return(animFile);
//var sample = AnimationSampler.Sample(0, 0, skeleton, new List<AnimationClip>() { animation }, true, true);
}
public static AnimationClip ReSample(GameSkeleton skeleton, AnimationClip newAnim, int newFrameCount, float playTime)
{
var output = newAnim.Clone();
output.DynamicFrames.Clear();
var fraction = 1.0f / (newFrameCount - 1);
for (int i = 0; i < newFrameCount; i++)
{
float t = i * fraction;
var keyframe = AnimationSampler.Sample(t, skeleton, new List <AnimationClip> {
newAnim
});
KeyFrame newKeyFrame = new KeyFrame();
for (int mappingIndex = 0; mappingIndex < output.RotationMappings.Count; mappingIndex++)
{
var mapping = output.RotationMappings[mappingIndex];
if (mapping.HasValue)
{
newKeyFrame.Rotation.Add(keyframe.BoneTransforms[mappingIndex].Rotation);
}
}
for (int mappingIndex = 0; mappingIndex < output.TranslationMappings.Count; mappingIndex++)
{
var mapping = output.TranslationMappings[mappingIndex];
if (mapping.HasValue)
{
newKeyFrame.Position.Add(keyframe.BoneTransforms[mappingIndex].Translation);
}
}
output.DynamicFrames.Add(newKeyFrame);
}
output.PlayTimeInSec = playTime;// (output.DynamicFrames.Count() - 1) / 20.0f;
return(output);
}
public AnimationFile ConvertToFileFormat(GameSkeleton skeleton)
{
AnimationFile output = new AnimationFile();
//float frameRate =
var fRate = (DynamicFrames.Count() - 1) / PlayTimeInSec;
output.Header.FrameRate = (float)Math.Floor(fRate);
output.Header.AnimationType = 7;
output.Header.AnimationTotalPlayTimeInSec = PlayTimeInSec;
output.Header.SkeletonName = skeleton.SkeletonName;
output.Bones = new BoneInfo[skeleton.BoneCount];
for (int i = 0; i < skeleton.BoneCount; i++)
{
output.Bones[i] = new BoneInfo()
{
Id = i,
Name = skeleton.BoneNames[i],
ParentId = skeleton.GetParentBone(i)
};
}
// Mappings
output.RotationMappings = RotationMappings.ToList();
output.TranslationMappings = TranslationMappings.ToList();
// Static
if (StaticFrame != null)
{
output.StaticFrame = CreateFrameFromKeyFrame(StaticFrame);
}
// Dynamic
foreach (var frame in DynamicFrames)
{
output.DynamicFrames.Add(CreateFrameFromKeyFrame(frame));
}
return(output);
}
public static AnimationFrame Sample(int frameIndex, float frameIterpolation, GameSkeleton skeleton, List <AnimationClip> animationClips)
{
try
{
if (skeleton == null)
{
return(null);
}
var currentFrame = skeleton.CreateAnimationFrame();
if (animationClips != null)
{
foreach (var animation in animationClips)
{
ApplyAnimation(animation.StaticFrame, null, 0, currentFrame, animation.RotationMappings, animation.TranslationMappings, AnimationBoneMappingType.Static);
}
if (animationClips.Any())
{
if (animationClips[0].DynamicFrames.Count > frameIndex)
{
var currentFrameKeys = GetKeyFrameFromIndex(animationClips[0].DynamicFrames, frameIndex);
var nextFrameKeys = GetKeyFrameFromIndex(animationClips[0].DynamicFrames, frameIndex + 1);
ApplyAnimation(currentFrameKeys, nextFrameKeys, frameIterpolation, currentFrame, animationClips[0].RotationMappings, animationClips[0].TranslationMappings, AnimationBoneMappingType.Dynamic);
// Apply skeleton scale
for (int i = 0; i < currentFrame.BoneTransforms.Count(); i++)
{
currentFrame.BoneTransforms[i].Scale = animationClips[0].DynamicFrames[0].Scale[i];
}
}
}
}
for (int i = 0; i < currentFrame.BoneTransforms.Count(); i++)
{
Quaternion rotation = currentFrame.BoneTransforms[i].Rotation;
Vector3 translation = currentFrame.BoneTransforms[i].Translation;
currentFrame.BoneTransforms[i].WorldTransform =
Matrix.CreateScale(currentFrame.BoneTransforms[i].Scale) *
Matrix.CreateFromQuaternion(rotation) *
Matrix.CreateTranslation(translation);
var parentindex = currentFrame.BoneTransforms[i].ParentBoneIndex;
if (parentindex == -1)
{
//var scale = Matrix.CreateScale(0.1f);
//currentFrame.BoneTransforms[i].WorldTransform = (scale * currentFrame.BoneTransforms[i].WorldTransform);
continue;
}
currentFrame.BoneTransforms[i].WorldTransform = currentFrame.BoneTransforms[i].WorldTransform * currentFrame.BoneTransforms[parentindex].WorldTransform;
}
for (int i = 0; i < skeleton.BoneCount; i++)
{
var inv = Matrix.Invert(skeleton.GetWorldTransform(i));
currentFrame.BoneTransforms[i].WorldTransform = Matrix.Multiply(inv, currentFrame.BoneTransforms[i].WorldTransform);
}
return(currentFrame);
}
catch (Exception e)
{
ILogger logger = Logging.Create <AnimationSampler>();
logger.Error(e.Message);
throw;
}
}
public Matrix GetSkeletonAnimatedWorld(GameSkeleton gameSkeleton, int boneIndex)
{
Matrix output = gameSkeleton.GetWorldTransform(boneIndex) * BoneTransforms[boneIndex].WorldTransform;
return(output);
}