private void FindNextCurve(IReadOnlyList <StreamedFrame> streamFrames, int index, int currentFrameIndex, out int frameIndex, out int curveIndex)
{
for (frameIndex = currentFrameIndex + 1; frameIndex < streamFrames.Count; frameIndex++)
{
StreamedFrame frame = streamFrames[frameIndex];
for (curveIndex = 0; curveIndex < frame.Curves.Count; curveIndex++)
{
StreamedCurveKey curve = frame.Curves[curveIndex];
if (curve.Index == index)
{
return;
}
}
}
// if there is no next curve, use current one
frameIndex = currentFrameIndex;
StreamedFrame currentFrame = streamFrames[currentFrameIndex];
for (curveIndex = 0; curveIndex < currentFrame.Curves.Count; curveIndex++)
{
StreamedCurveKey curve = currentFrame.Curves[curveIndex];
if (curve.Index == index)
{
return;
}
}
throw new Exception($"There is no curve with index {index} in any of current or next frames");
}
public static StreamedCurveKey CalculateStreamedFrame(AnimationCurveTpl <Float> curve, int lhsIndex, int rhsIndex, float timeOffset)
{
IReadOnlyList <KeyframeTpl <Float> > keyframes = curve.Curve;
KeyframeTpl <Float> lhs = keyframes[lhsIndex];
int curveKeyIndex = lhsIndex;
KeyframeTpl <Float> rhs = keyframes[rhsIndex];
float frameTime = lhs.Time + timeOffset;
//TimeEnd = rhs.Time + timeOffset;
float deltaTime = rhs.Time - lhs.Time;
if (deltaTime < 0.00009999999747378752)
{
deltaTime = 0.000099999997f;
}
float deltaValue = rhs.Value.Value - lhs.Value.Value;
float inverseTime = 1.0f / (deltaTime * deltaTime);
float outTangent = lhs.OutSlope.Value * deltaTime;
float inTangent = rhs.InSlope.Value * deltaTime;
float curveKeyCoefX = (inTangent + outTangent - deltaValue - deltaValue) * inverseTime / deltaTime;
float curveKeyCoefY = inverseTime * (deltaValue + deltaValue + deltaValue - outTangent - outTangent - inTangent);
float curveKeyCoefZ = lhs.OutSlope.Value;
float curveKeyValue = lhs.Value.Value;
if (lhs.OutSlope.Value == float.PositiveInfinity || rhs.InSlope.Value == float.PositiveInfinity)
{
curveKeyCoefX = 0.0f;
curveKeyCoefY = 0.0f;
curveKeyCoefZ = 0.0f;
curveKeyValue = lhs.Value.Value;
}
Vector3f curveKeyCoef = new Vector3f(curveKeyCoefX, curveKeyCoefY, curveKeyCoefZ);
StreamedCurveKey curveKey = new StreamedCurveKey(curveKeyIndex, curveKeyValue, curveKeyCoef);
return(curveKey);
}
private void ProcessStreams(IReadOnlyList <StreamedFrame> streamFrames, AnimationClipBindingConstant bindings, IReadOnlyDictionary <uint, string> tos, float sampleRate)
{
float[] curveValues = new float[4];
float[] inSlopeValues = new float[4];
float[] outSlopeValues = new float[4];
float interval = 1.0f / sampleRate;
// first (index [0]) stream frame is for slope calculation for the first real frame (index [1])
// last one (index [count - 1]) is +Infinity
// it is made for slope processing, but we don't need them
for (int frameIndex = 1; frameIndex < streamFrames.Count - 1; frameIndex++)
{
StreamedFrame frame = streamFrames[frameIndex];
for (int curveIndex = 0; curveIndex < frame.Curves.Count;)
{
StreamedCurveKey curve = frame.Curves[curveIndex];
GenericBinding binding = bindings.FindBinding(curve.Index);
GetPreviousFrame(streamFrames, curve.Index, frameIndex, out int prevFrameIndex, out int prevCurveIndex);
string path = GetCurvePath(tos, binding.Path);
if (binding.IsTransform)
{
int dimension = binding.TransformType.GetDimension();
for (int key = 0; key < dimension; key++)
{
StreamedCurveKey keyCurve = frame.Curves[curveIndex];
StreamedFrame prevFrame = streamFrames[prevFrameIndex];
StreamedCurveKey prevKeyCurve = prevFrame.Curves[prevCurveIndex + key];
float deltaTime = frame.Time - prevFrame.Time;
curveValues[key] = keyCurve.Value;
inSlopeValues[key] = prevKeyCurve.CalculateNextInSlope(deltaTime, keyCurve.Value);
outSlopeValues[key] = keyCurve.OutSlope;
curveIndex = GetNextCurve(frame, curveIndex);
}
AddTransformCurve(frame.Time, binding.TransformType, curveValues, inSlopeValues, outSlopeValues, 0, path);
}
else if (binding.CustomType == BindingCustomType.None)
{
AddDefaultCurve(binding, path, frame.Time, frame.Curves[curveIndex].Value);
curveIndex = GetNextCurve(frame, curveIndex);
}
else
{
AddCustomCurve(bindings, binding, path, frame.Time, frame.Curves[curveIndex].Value);
curveIndex = GetNextCurve(frame, curveIndex);
}
}
}
}
private int GetNextCurve(StreamedFrame frame, int currentCurve)
{
StreamedCurveKey curve = frame.Curves[currentCurve];
int i = currentCurve + 1;
for (; i < frame.Curves.Count; i++)
{
if (frame.Curves[i].Index != curve.Index)
{
return(i);
}
}
return(i);
}
private void GetPreviousFrame(IReadOnlyList <StreamedFrame> streamFrames, int curveID, int currentFrame, out int frameIndex, out int curveIndex)
{
for (frameIndex = currentFrame - 1; frameIndex >= 0; frameIndex--)
{
StreamedFrame frame = streamFrames[frameIndex];
for (curveIndex = 0; curveIndex < frame.Curves.Count; curveIndex++)
{
StreamedCurveKey curve = frame.Curves[curveIndex];
if (curve.Index == curveID)
{
return;
}
}
}
throw new Exception($"There is no curve with index {curveID} in any of previous frames");
}
private void ProcessStreams(IReadOnlyList <StreamedFrame> streamFrames, AnimationClipBindingConstant bindings, IReadOnlyDictionary <uint, string> tos)
{
float[] curveValues = new float[4];
float[] inSlopeValues = new float[4];
float[] outSlopeValues = new float[4];
// first (index [0]) stream frame is for slope calculation for the first real frame (index [1])
// last one (index [count - 1]) is +Infinity
// it is made for slope processing, but we don't need them
for (int frameIndex = 1; frameIndex < streamFrames.Count - 1; frameIndex++)
{
StreamedFrame frame = streamFrames[frameIndex];
for (int curveIndex = 0; curveIndex < frame.Curves.Count;)
{
StreamedCurveKey curve = frame.Curves[curveIndex];
if (!GetGenericBinding(bindings, curve.Index, out GenericBinding binding))
{
curveIndex++;
continue;
}
//FindPreviousCurve(streamFrames, curve.Index, frameIndex, out int prevFrameIndex, out int prevCurveIndex);
//FindNextCurve(streamFrames, curve.Index, frameIndex, out int nextFrameIndex, out int nextCurveIndex);
string path = GetCurvePath(tos, binding.Path);
int dimension = binding.BindingType.GetDimension();
for (int key = 0; key < dimension; key++)
{
StreamedCurveKey keyCurve = frame.Curves[curveIndex + key];
//StreamedFrame prevFrame = streamFrames[prevFrameIndex];
//StreamedFrame nextFrame = streamFrames[nextFrameIndex];
//StreamedCurveKey prevKeyCurve = prevFrame.Curves[prevCurveIndex + key];
//StreamedCurveKey nextKeyCurve = nextFrame.Curves[nextCurveIndex + key];
curveValues[key] = keyCurve.Value;
#warning TODO: TCB to in/out slope
//inSlopeValues[key] = prevKeyCurve.CalculateNextInTangent(keyCurve.Value, nextKeyCurve.Value);
//outSlopeValues[key] = keyCurve.CalculateOutTangent(prevKeyCurve.Value, nextKeyCurve.Value);
}
AddComplexCurve(frame.Time, binding.BindingType, curveValues, inSlopeValues, outSlopeValues, 0, path);
curveIndex += dimension;
}
}
}
