public List<animation> ExportTransform(IList<Keyframe> keyframes, string name, string target)
{
var anims = new List<animation>();
var inputs = new List<InputLocal>();
var outputs = new List<float>(keyframes.Count * 16);
foreach (var keyframe in keyframes)
{
var transform = Matrix4.Identity;
if (keyframe.hasRotation)
transform *= Matrix4.CreateFromQuaternion(keyframe.rotation.Inverted());
if (keyframe.hasScaleShear)
{
var scaleShear = Matrix4.Identity;
for (int i = 0; i < 3; i++)
{
for (int j = 0; j < 3; j++)
scaleShear[i, j] = keyframe.scaleShear[i, j];
}
transform *= scaleShear;
}
if (keyframe.hasTranslation)
{
transform[0, 3] += keyframe.translation[0];
transform[1, 3] += keyframe.translation[1];
transform[2, 3] += keyframe.translation[2];
}
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
outputs.Add(transform[i, j]);
}
}
var interpolations = new List<string>(keyframes.Count);
for (int i = 0; i < keyframes.Count; i++)
{
// TODO: Add control point estimation code and add in/out tangents for Bezier
//interpolations.Add("BEZIER");
interpolations.Add("LINEAR");
}
var knots = new List<float>(keyframes.Count);
foreach (var keyframe in keyframes)
{
knots.Add(keyframe.time);
}
/*
* Fix up animations that have only one keyframe by adding another keyframe at
* the end of the animation.
* (This mainly applies to DaIdentity and DnConstant32f)
*/
if (keyframes.Count == 1)
{
knots.Add(ParentAnimation.Duration);
for (int i = 0; i < 16; i++)
outputs.Add(outputs[i]);
interpolations.Add(interpolations[0]);
}
var knotsSource = ColladaUtils.MakeFloatSource(name, "inputs", new string[] { "TIME" }, knots.ToArray());
var knotsInput = new InputLocal();
knotsInput.semantic = "INPUT";
knotsInput.source = "#" + knotsSource.id;
inputs.Add(knotsInput);
var outSource = ColladaUtils.MakeFloatSource(name, "outputs", new string[] { "TRANSFORM" }, outputs.ToArray(), 16, "float4x4");
var outInput = new InputLocal();
outInput.semantic = "OUTPUT";
outInput.source = "#" + outSource.id;
inputs.Add(outInput);
var interpSource = ColladaUtils.MakeNameSource(name, "interpolations", new string[] { "INTERPOLATION" }, interpolations.ToArray());
var interpInput = new InputLocal();
interpInput.semantic = "INTERPOLATION";
interpInput.source = "#" + interpSource.id;
inputs.Add(interpInput);
var sampler = new sampler();
sampler.id = name + "_sampler";
sampler.input = inputs.ToArray();
var channel = new channel();
channel.source = "#" + sampler.id;
channel.target = target;
var animation = new animation();
animation.id = name;
animation.name = name;
var animItems = new List<object>();
animItems.Add(knotsSource);
animItems.Add(outSource);
animItems.Add(interpSource);
animItems.Add(sampler);
animItems.Add(channel);
animation.Items = animItems.ToArray();
anims.Add(animation);
return anims;
}
protected void CreateChannel(List<object> listAnimationObjects, uint caseIndex, string sData, string sDataType, string sTarget, List<double> lValues)
{
string sTime = string.Format("sTime_{0}_ID", caseIndex);
string sInterp = string.Format("sInterp_{0}_ID", caseIndex);
// source
source source_ = new source()
{
id = string.Format("sValue_{0}_{1}_ID", caseIndex, sData),
name = string.Format("sValue_{0}_{1}", caseIndex, sData),
Item = new float_array() { id = string.Format("fa_{0}_{1}_ID", caseIndex, sData), count = (ulong)lValues.Count, Values = lValues.ToArray() },
technique_common = new sourceTechnique_common()
{
accessor = new accessor()
{
source = string.Format("#fa_{0}_{1}_ID", caseIndex, sData),
count = (ulong)lValues.Count,
stride = 1,
param = new param[]
{
new param() { name=sDataType, type="float" }
}
}
}
};
listAnimationObjects.Add(source_);
// sampler
sampler sampler_ = new sampler()
{
id = string.Format("sampler_{0}_{1}_ID", caseIndex, sData),
input = new InputLocal[]
{
new InputLocal() { semantic="INPUT", source="#" + sTime },
new InputLocal() { semantic="OUTPUT", source="#" + source_.id },
new InputLocal() { semantic="INTERPOLATION", source="#" + sInterp }
}
};
listAnimationObjects.Add(sampler_);
// channel
channel channel_ = new channel()
{
source = "#" + sampler_.id,
target = sTarget
};
listAnimationObjects.Add(channel_);
}