private TransformAnimationCurves CreateTransformAnimationCurves(AnimationClip anim, EditorCurveBinding[] bindings)
{
var curves = new TransformAnimationCurves();
var positionX = bindings.Where(b => b.propertyName == "m_LocalPosition.x").FirstOrDefault();
var positionY = bindings.Where(b => b.propertyName == "m_LocalPosition.y").FirstOrDefault();
var positionZ = bindings.Where(b => b.propertyName == "m_LocalPosition.z").FirstOrDefault();
var rotationX = bindings.Where(b => b.propertyName == "m_LocalRotation.x").FirstOrDefault();
var rotationY = bindings.Where(b => b.propertyName == "m_LocalRotation.y").FirstOrDefault();
var rotationZ = bindings.Where(b => b.propertyName == "m_LocalRotation.z").FirstOrDefault();
var rotationW = bindings.Where(b => b.propertyName == "m_LocalRotation.w").FirstOrDefault();
var scaleX = bindings.Where(b => b.propertyName == "m_LocalScale.x").FirstOrDefault();
var scaleY = bindings.Where(b => b.propertyName == "m_LocalScale.y").FirstOrDefault();
var scaleZ = bindings.Where(b => b.propertyName == "m_LocalScale.z").FirstOrDefault();
curves.positionX = AnimationUtility.GetEditorCurve(anim, positionX);
curves.positionY = AnimationUtility.GetEditorCurve(anim, positionY);
curves.positionZ = AnimationUtility.GetEditorCurve(anim, positionZ);
curves.rotationX = AnimationUtility.GetEditorCurve(anim, rotationX);
curves.rotationY = AnimationUtility.GetEditorCurve(anim, rotationY);
curves.rotationZ = AnimationUtility.GetEditorCurve(anim, rotationZ);
curves.rotationW = AnimationUtility.GetEditorCurve(anim, rotationW);
curves.scaleX = AnimationUtility.GetEditorCurve(anim, scaleX);
curves.scaleY = AnimationUtility.GetEditorCurve(anim, scaleY);
curves.scaleZ = AnimationUtility.GetEditorCurve(anim, scaleZ);
return(curves);
}
private XmlNode AddAnimationCurve(TransformAnimationCurves curves, string curveId, string jointId)
{
XmlNode curveNode = this.animations.AppendChild(this.xml.CreateElement("animation", COLLADA));
SetIdAttribute(curveNode, curveId);
int keyCount = curves.positionX.length;
// input
string inputID = string.Format("{0}-input", curveId);
{
XmlNode inputNode = curveNode.AppendChild(this.xml.CreateElement("source", COLLADA));
SetIdAttribute(inputNode, inputID);
StringBuilder sb = new StringBuilder();
foreach (var k in curves.positionX.keys)
{
sb.AppendFormat("{0:F6} ", k.time);
}
string arrayId = string.Format("{0}-array", inputID);
XmlNode flArrayNode = inputNode.AppendChild(this.xml.CreateElement("float_array", COLLADA));
SetIdAttribute(flArrayNode, arrayId);
SetAttribute(flArrayNode, "count", keyCount.ToString());
flArrayNode.AppendChild(this.xml.CreateTextNode(sb.ToString()));
AddAnimationCurveTechniqueNode(inputNode, keyCount, 1, arrayId, "TIME", "float");
}
//output
string outputID = string.Format("{0}-output", curveId);
{
XmlNode outputNode = curveNode.AppendChild(this.xml.CreateElement("source", COLLADA));
SetIdAttribute(outputNode, outputID);
StringBuilder sb = new StringBuilder();
for (int i = 0; i < curves.positionX.length; ++i)
{
var mat = curves.CreateTransformMatrix(i); // already in right-handed coordinate
var matStr = FormtMatrix4x4ForCollada(ref mat);
sb.Append(matStr);
}
string arrayId = string.Format("{0}-array", outputID);
XmlNode flArrayNode = outputNode.AppendChild(this.xml.CreateElement("float_array", COLLADA));
SetIdAttribute(flArrayNode, arrayId);
SetAttribute(flArrayNode, "count", (keyCount * 16).ToString());
flArrayNode.AppendChild(this.xml.CreateTextNode(sb.ToString()));
AddAnimationCurveTechniqueNode(outputNode, keyCount, 16, arrayId, "TRANSFORM", "float4x4");
}
//interpolation
string interpolationID = string.Format("{0}-interpolation", curveId);
{
XmlNode interpolationNode = curveNode.AppendChild(this.xml.CreateElement("source", COLLADA));
SetIdAttribute(interpolationNode, interpolationID);
StringBuilder sb = new StringBuilder();
foreach (var k in curves.positionX.keys)
{
sb.Append("LINEAR ");
}
string arrayId = string.Format("{0}-array", outputID);
XmlNode flArrayNode = interpolationNode.AppendChild(this.xml.CreateElement("Name_array", COLLADA));
SetIdAttribute(flArrayNode, arrayId);
SetAttribute(flArrayNode, "count", keyCount.ToString());
flArrayNode.AppendChild(this.xml.CreateTextNode(sb.ToString()));
AddAnimationCurveTechniqueNode(interpolationNode, keyCount, 1, arrayId, "INTERPOLATION", "name");
}
//sampler
string samplerID = string.Format("{0}-sampler", curveId);
{
var samplerNode = curveNode.AppendChild(this.xml.CreateElement("sampler", COLLADA));
SetIdAttribute(samplerNode, samplerID);
var sin = samplerNode.AppendChild(this.xml.CreateElement("input", COLLADA));
SetAttribute(sin, "semantic", "INPUT");
SetAttribute(sin, "source", string.Format("#{0}", inputID));
var sout = samplerNode.AppendChild(this.xml.CreateElement("input", COLLADA));
SetAttribute(sout, "semantic", "OUTPUT");
SetAttribute(sout, "source", string.Format("#{0}", outputID));
var sinterpol = samplerNode.AppendChild(this.xml.CreateElement("input", COLLADA));
SetAttribute(sinterpol, "semantic", "INTERPOLATION");
SetAttribute(sinterpol, "source", string.Format("#{0}", interpolationID));
}
//channel
{
var channelNode = curveNode.AppendChild(this.xml.CreateElement("channel", COLLADA));
SetAttribute(channelNode, "source", string.Format("#{0}", samplerID));
SetAttribute(channelNode, "target", string.Format("{0}/matrix", jointId));
}
return(curveNode);
}
