private void ExportAnimationGroups(GLTF gltf, BabylonScene babylonScene)
{
AnimationGroupList animationList = new AnimationGroupList();
animationList.LoadFromData();
gltf.AnimationsList.Clear();
gltf.AnimationsList.Capacity = Math.Max(gltf.AnimationsList.Capacity, animationList.Count);
foreach (AnimationGroup animGroup in animationList)
{
GLTFAnimation gltfAnimation = new GLTFAnimation();
gltfAnimation.name = animGroup.Name;
foreach (uint nodeHandle in animGroup.NodeHandles)
{
// todo: make something a little more efficient..
IINode maxNode = Loader.Core.RootNode.FindChildNode(nodeHandle);
string id = maxNode.GetGuid().ToString();
BabylonNode babylonNode = babylonNodes.Find(node => node.id.Equals(id));
if (babylonNode != null && nodeToGltfNodeMap.TryGetValue(babylonNode, out GLTFNode gltfNode))
{
ExportNodeAnimation(gltfAnimation, animGroup.FrameStart, animGroup.FrameEnd, gltf, babylonNode, gltfNode, babylonScene);
}
// export all bones that match this id
foreach (KeyValuePair <BabylonBone, GLTFNode> pair in boneToGltfNodeMap)
{
if (pair.Key.id.Equals(id))
{
ExportBoneAnimation(gltfAnimation, animGroup.FrameStart, animGroup.FrameEnd, gltf, pair.Key, pair.Value);
}
}
}
gltf.AnimationsList.Add(gltfAnimation);
}
}
private void ExportBoneAnimation(GLTFAnimation gltfAnimation, int startFrame, int endFrame, GLTF gltf, BabylonNode babylonNode, GLTFNode gltfNode, BabylonAnimationGroup animationGroup = null)
{
var channelList = gltfAnimation.ChannelList;
var samplerList = gltfAnimation.SamplerList;
if (babylonNode.animations != null && babylonNode.animations[0].property == "_matrix")
{
logger.RaiseMessage("GLTFExporter.Animation | Export animation of bone named: " + babylonNode.name, 2);
BabylonAnimation babylonAnimation = null;
if (animationGroup != null)
{
var targetedAnimation = animationGroup.targetedAnimations.FirstOrDefault(animation => animation.targetId == babylonNode.id);
if (targetedAnimation != null)
{
babylonAnimation = targetedAnimation.animation;
}
}
// otherwise fall back to the full animation track on the node.
if (babylonAnimation == null)
{
babylonAnimation = babylonNode.animations[0];
}
var babylonAnimationKeysInRange = babylonAnimation.keys.Where(key => key.frame >= startFrame && key.frame <= endFrame);
if (babylonAnimationKeysInRange.Count() <= 0)
{
return;
}
// --- Input ---
var accessorInput = _createAndPopulateInput(gltf, babylonAnimation, startFrame, endFrame);
if (accessorInput == null)
{
return;
}
// --- Output ---
var paths = new string[] { "translation", "rotation", "scale" };
var accessorOutputByPath = new Dictionary <string, GLTFAccessor>();
foreach (string path in paths)
{
GLTFAccessor accessorOutput = _createAccessorOfPath(path, gltf);
accessorOutputByPath.Add(path, accessorOutput);
}
// Populate accessors
foreach (var babylonAnimationKey in babylonAnimationKeysInRange)
{
var matrix = new BabylonMatrix();
matrix.m = babylonAnimationKey.values;
var translationBabylon = new BabylonVector3();
var rotationQuatBabylon = new BabylonQuaternion();
var scaleBabylon = new BabylonVector3();
matrix.decompose(scaleBabylon, rotationQuatBabylon, translationBabylon);
// Switch coordinate system at object level
translationBabylon.Z *= -1;
rotationQuatBabylon.X *= -1;
rotationQuatBabylon.Y *= -1;
var outputValuesByPath = new Dictionary <string, float[]>();
outputValuesByPath.Add("translation", translationBabylon.ToArray());
outputValuesByPath.Add("rotation", rotationQuatBabylon.ToArray());
outputValuesByPath.Add("scale", scaleBabylon.ToArray());
// Store values as bytes
foreach (string path in paths)
{
var accessorOutput = accessorOutputByPath[path];
var outputValues = outputValuesByPath[path];
foreach (var outputValue in outputValues)
{
accessorOutput.bytesList.AddRange(BitConverter.GetBytes(outputValue));
}
accessorOutput.count++;
}
}
;
foreach (string path in paths)
{
var accessorOutput = accessorOutputByPath[path];
// Animation sampler
var gltfAnimationSampler = new GLTFAnimationSampler
{
input = accessorInput.index,
output = accessorOutput.index
};
gltfAnimationSampler.index = samplerList.Count;
samplerList.Add(gltfAnimationSampler);
// Target
var gltfTarget = new GLTFChannelTarget
{
node = gltfNode.index
};
gltfTarget.path = path;
// Channel
var gltfChannel = new GLTFChannel
{
sampler = gltfAnimationSampler.index,
target = gltfTarget
};
channelList.Add(gltfChannel);
}
}
ExportGLTFExtension(babylonNode, ref gltfAnimation, gltf);
}
private void ExportNodeAnimation(GLTFAnimation gltfAnimation, int startFrame, int endFrame, GLTF gltf, BabylonNode babylonNode, GLTFNode gltfNode, BabylonScene babylonScene, BabylonAnimationGroup animationGroup = null)
{
var channelList = gltfAnimation.ChannelList;
var samplerList = gltfAnimation.SamplerList;
bool exportNonAnimated = exportParameters.animgroupExportNonAnimated;
// Combine babylon animations from .babylon file and cached ones
var babylonAnimations = new List <BabylonAnimation>();
if (animationGroup != null)
{
var targetedAnimations = animationGroup.targetedAnimations.Where(animation => animation.targetId == babylonNode.id);
foreach (var targetedAnimation in targetedAnimations)
{
babylonAnimations.Add(targetedAnimation.animation);
}
}
// Do not include the node animations if a provided animation group already includes them.
if (babylonAnimations.Count <= 0)
{
if (babylonNode.animations != null)
{
babylonAnimations.AddRange(babylonNode.animations);
}
if (babylonNode.extraAnimations != null)
{
babylonAnimations.AddRange(babylonNode.extraAnimations);
}
}
// Filter animations to only keep TRS ones
babylonAnimations = babylonAnimations.FindAll(babylonAnimation => _getTargetPath(babylonAnimation.property) != null);
if (babylonAnimations.Count > 0 || exportNonAnimated)
{
if (babylonAnimations.Count > 0)
{
logger.RaiseMessage("GLTFExporter.Animation | Export animations of node named: " + babylonNode.name, 2);
}
else if (exportNonAnimated)
{
logger.RaiseMessage("GLTFExporter.Animation | Export dummy animation for node named: " + babylonNode.name, 2);
// Export a dummy animation
babylonAnimations.Add(GetDummyAnimation(gltfNode, startFrame, endFrame, babylonScene));
}
foreach (BabylonAnimation babylonAnimation in babylonAnimations)
{
var babylonAnimationKeysInRange = babylonAnimation.keys.Where(key => key.frame >= startFrame && key.frame <= endFrame);
if (babylonAnimationKeysInRange.Count() <= 0)
{
continue;
}
// Target
var gltfTarget = new GLTFChannelTarget
{
node = gltfNode.index
};
gltfTarget.path = _getTargetPath(babylonAnimation.property);
// --- Input ---
var accessorInput = _createAndPopulateInput(gltf, babylonAnimation, startFrame, endFrame);
if (accessorInput == null)
{
continue;
}
// --- Output ---
GLTFAccessor accessorOutput = _createAccessorOfPath(gltfTarget.path, gltf);
// Populate accessor
int numKeys = 0;
foreach (var babylonAnimationKey in babylonAnimationKeysInRange)
{
numKeys++;
// copy data before changing it in case animation groups overlap
float[] outputValues = new float[babylonAnimationKey.values.Length];
babylonAnimationKey.values.CopyTo(outputValues, 0);
// Switch coordinate system at object level
if (babylonAnimation.property == "position")
{
outputValues[2] *= -1;
}
else if (babylonAnimation.property == "rotationQuaternion")
{
outputValues[0] *= -1;
outputValues[1] *= -1;
}
// Store values as bytes
foreach (var outputValue in outputValues)
{
accessorOutput.bytesList.AddRange(BitConverter.GetBytes(outputValue));
}
}
;
accessorOutput.count = numKeys;
if (accessorOutput.count == 0)
{
logger.RaiseWarning(String.Format("GLTFExporter.Animation | No frames to export in node animation \"{1}\" of node named \"{0}\". This will cause an error in the output gltf.", babylonNode.name, babylonAnimation.name));
}
// Animation sampler
var gltfAnimationSampler = new GLTFAnimationSampler
{
input = accessorInput.index,
output = accessorOutput.index
};
gltfAnimationSampler.index = samplerList.Count;
samplerList.Add(gltfAnimationSampler);
// Channel
var gltfChannel = new GLTFChannel
{
sampler = gltfAnimationSampler.index,
target = gltfTarget
};
channelList.Add(gltfChannel);
}
}
ExportGLTFExtension(babylonNode, ref gltfAnimation, gltf);
}
private void ExportAnimationGroups(GLTF gltf, BabylonScene babylonScene)
{
// Retreive and parse animation group data
var animationGroupList = babylonScene.animationGroups;
var animationGroupCount = animationGroupList == null ? 0 : animationGroupList.Count;
gltf.AnimationsList.Clear();
gltf.AnimationsList.Capacity = Math.Max(gltf.AnimationsList.Capacity, animationGroupCount);
if (animationGroupCount <= 0)
{
logger.RaiseMessage("GLTFExporter.Animation | No AnimationGroups: exporting all animations together.", 1);
GLTFAnimation gltfAnimation = new GLTFAnimation();
gltfAnimation.name = "All Animations";
int startFrame = babylonScene.TimelineStartFrame;
int endFrame = babylonScene.TimelineEndFrame;
foreach (var pair in nodeToGltfNodeMap)
{
BabylonNode node = pair.Key;
GLTFNode gltfNode = pair.Value;
bool nodeHasAnimations = node.animations != null && node.animations.Length > 0 && node.animations[0] != null;
bool nodeHasExtraAnimations = node.extraAnimations != null && node.extraAnimations.Count > 0 && node.extraAnimations[0] != null;
BabylonMesh meshNode = node as BabylonMesh;
BabylonMorphTargetManager morphTargetManager = null;
bool nodeHasAnimatedMorphTargets = false;
if (meshNode != null && meshNode.morphTargetManagerId != null)
{
morphTargetManager = GetBabylonMorphTargetManager(babylonScene, meshNode);
if (morphTargetManager != null)
{
nodeHasAnimatedMorphTargets = morphTargetManager.targets.Any(target => target.animations != null && target.animations.Length > 0 && target.animations[0] != null);
}
}
if (!nodeHasAnimations && !nodeHasExtraAnimations && !nodeHasAnimatedMorphTargets)
{
continue;
}
if (nodeHasAnimations && node.animations[0].property == "_matrix")
{
ExportBoneAnimation(gltfAnimation, startFrame, endFrame, gltf, node, pair.Value);
}
else
{
ExportNodeAnimation(gltfAnimation, startFrame, endFrame, gltf, node, gltfNode, babylonScene);
}
if (nodeHasAnimatedMorphTargets)
{
ExportMorphTargetWeightAnimation(morphTargetManager, gltf, gltfNode, gltfAnimation.ChannelList, gltfAnimation.SamplerList, startFrame, endFrame, babylonScene);
}
}
if (gltfAnimation.ChannelList.Count > 0)
{
gltf.AnimationsList.Add(gltfAnimation);
}
else
{
logger.RaiseMessage("GLTFExporter.Animation | No animation data for this animation, it is ignored.", 2);
}
}
else
{
foreach (BabylonAnimationGroup animGroup in animationGroupList)
{
logger.RaiseMessage("GLTFExporter.Animation | " + animGroup.name, 1);
GLTFAnimation gltfAnimation = new GLTFAnimation();
gltfAnimation.name = animGroup.name;
int startFrame = MathUtilities.RoundToInt(animGroup.from);
int endFrame = MathUtilities.RoundToInt(animGroup.to);
var uniqueNodeIds = animGroup.targetedAnimations.Select(targetAnim => targetAnim.targetId).Distinct();
foreach (var id in uniqueNodeIds)
{
BabylonNode babylonNode = babylonNodes.Find(node => node.id.Equals(id));
GLTFNode gltfNode = null;
// search the babylon scene id map for the babylon node that matches this id
if (babylonNode != null)
{
BabylonMorphTargetManager morphTargetManager = null;
// search our babylon->gltf node mapping to see if this node is included in the exported gltf scene
if (!nodeToGltfNodeMap.TryGetValue(babylonNode, out gltfNode))
{
continue;
}
bool nodeHasAnimations = babylonNode.animations != null && babylonNode.animations.Length > 0 && babylonNode.animations[0] != null;
bool nodeHasExtraAnimations = babylonNode.extraAnimations != null && babylonNode.extraAnimations.Count > 0 && babylonNode.extraAnimations[0] != null;
if (!nodeHasAnimations && !nodeHasExtraAnimations)
{
continue;
}
if (nodeHasAnimations && babylonNode.animations[0].property == "_matrix") //TODO: Is this check accurate for deciphering between bones and nodes?
{
ExportBoneAnimation(gltfAnimation, startFrame, endFrame, gltf, babylonNode, gltfNode, animGroup);
}
else
{
ExportNodeAnimation(gltfAnimation, startFrame, endFrame, gltf, babylonNode, gltfNode, babylonScene, animGroup);
}
}
else
{
// if the node isn't found in the scene id map, check if it is the id for a morph target
BabylonMorphTargetManager morphTargetManager = babylonScene.morphTargetManagers.FirstOrDefault(mtm => mtm.targets.Any(target => target.animations != null && target.animations.Length > 0 && target.animations[0] != null));
if (morphTargetManager != null)
{
BabylonMesh mesh = morphTargetManager.sourceMesh;
if (mesh != null && nodeToGltfNodeMap.TryGetValue(mesh, out gltfNode))
{
ExportMorphTargetWeightAnimation(morphTargetManager, gltf, gltfNode, gltfAnimation.ChannelList, gltfAnimation.SamplerList, startFrame, endFrame, babylonScene);
}
}
}
}
if (gltfAnimation.ChannelList.Count > 0)
{
gltf.AnimationsList.Add(gltfAnimation);
}
else
{
logger.RaiseMessage("No data exported for this animation, it is ignored.", 2);
}
// clear the exported morph target cache, since we are exporting a new animation group. //TODO: we should probably do this more elegantly.
exportedMorphTargets.Clear();
}
}
}
private void ExportAnimationGroups(GLTF gltf, BabylonScene babylonScene)
{
// Retreive and parse animation group data
AnimationGroupList animationList = InitAnimationGroups();
gltf.AnimationsList.Clear();
gltf.AnimationsList.Capacity = Math.Max(gltf.AnimationsList.Capacity, animationList.Count);
if (animationList.Count <= 0)
{
RaiseMessage("GLTFExporter.Animation | No AnimationGroups: exporting all animations together.", 1);
GLTFAnimation gltfAnimation = new GLTFAnimation();
gltfAnimation.name = "All Animations";
int minFrame = Loader.GetMinTime();
int maxFrame = Loader.GetMaxTime();
foreach (var pair in nodeToGltfNodeMap)
{
ExportNodeAnimation(gltfAnimation, minFrame, maxFrame, gltf, pair.Key, pair.Value, babylonScene);
}
foreach (var pair in boneToGltfNodeMap)
{
ExportBoneAnimation(gltfAnimation, minFrame, maxFrame, gltf, pair.Key, pair.Value);
}
if (gltfAnimation.ChannelList.Count > 0)
{
gltf.AnimationsList.Add(gltfAnimation);
}
else
{
RaiseMessage("GLTFExporter.Animation | No animation data for this animation, it is ignored.", 2);
}
}
else
{
foreach (AnimationGroup animGroup in animationList)
{
RaiseMessage("GLTFExporter.Animation | " + animGroup.Name, 1);
GLTFAnimation gltfAnimation = new GLTFAnimation();
gltfAnimation.name = animGroup.Name;
int startFrame = animGroup.FrameStart;
int endFrame = animGroup.FrameEnd;
foreach (var pair in nodeToGltfNodeMap)
{
ExportNodeAnimation(gltfAnimation, startFrame, endFrame, gltf, pair.Key, pair.Value, babylonScene);
}
foreach (var pair in boneToGltfNodeMap)
{
ExportBoneAnimation(gltfAnimation, startFrame, endFrame, gltf, pair.Key, pair.Value);
}
if (gltfAnimation.ChannelList.Count > 0)
{
gltf.AnimationsList.Add(gltfAnimation);
}
else
{
RaiseMessage("No data exported for this animation, it is ignored.", 2);
}
}
}
}
private GLTFAnimation ExportBoneAnimation(BabylonBone babylonBone, GLTF gltf, GLTFNode gltfNode)
{
GLTFAnimation gltfAnimation = null;
if (gltf.AnimationsList.Count > 0)
{
gltfAnimation = gltf.AnimationsList[0];
}
else
{
gltfAnimation = new GLTFAnimation();
gltf.AnimationsList.Add(gltfAnimation);
}
var channelList = gltfAnimation.ChannelList;
var samplerList = gltfAnimation.SamplerList;
if (babylonBone.animation != null && babylonBone.animation.property == "_matrix")
{
RaiseMessage("GLTFExporter.Animation | Export animation of bone named: " + babylonBone.name, 2);
var babylonAnimation = babylonBone.animation;
// --- Input ---
var accessorInput = _createAndPopulateInput(gltf, babylonAnimation);
// --- Output ---
var paths = new string[] { "translation", "rotation", "scale" };
var accessorOutputByPath = new Dictionary <string, GLTFAccessor>();
foreach (string path in paths)
{
GLTFAccessor accessorOutput = _createAccessorOfPath(path, gltf);
accessorOutputByPath.Add(path, accessorOutput);
}
// Populate accessors
foreach (var babylonAnimationKey in babylonAnimation.keys)
{
var matrix = new BabylonMatrix();
matrix.m = babylonAnimationKey.values;
var translationBabylon = new BabylonVector3();
var rotationQuatBabylon = new BabylonQuaternion();
var scaleBabylon = new BabylonVector3();
matrix.decompose(scaleBabylon, rotationQuatBabylon, translationBabylon);
translationBabylon.Z *= -1;
BabylonVector3 rotationVector3 = rotationQuatBabylon.toEulerAngles();
rotationVector3.X *= -1;
rotationVector3.Y *= -1;
rotationQuatBabylon = rotationVector3.toQuaternion();
var outputValuesByPath = new Dictionary <string, float[]>();
outputValuesByPath.Add("translation", translationBabylon.ToArray());
outputValuesByPath.Add("rotation", rotationQuatBabylon.ToArray());
outputValuesByPath.Add("scale", scaleBabylon.ToArray());
// Store values as bytes
foreach (string path in paths)
{
var accessorOutput = accessorOutputByPath[path];
var outputValues = outputValuesByPath[path];
foreach (var outputValue in outputValues)
{
accessorOutput.bytesList.AddRange(BitConverter.GetBytes(outputValue));
}
accessorOutput.count++;
}
}
;
foreach (string path in paths)
{
var accessorOutput = accessorOutputByPath[path];
// Animation sampler
var gltfAnimationSampler = new GLTFAnimationSampler
{
input = accessorInput.index,
output = accessorOutput.index
};
gltfAnimationSampler.index = samplerList.Count;
samplerList.Add(gltfAnimationSampler);
// Target
var gltfTarget = new GLTFChannelTarget
{
node = gltfNode.index
};
gltfTarget.path = path;
// Channel
var gltfChannel = new GLTFChannel
{
sampler = gltfAnimationSampler.index,
target = gltfTarget
};
channelList.Add(gltfChannel);
}
}
return(gltfAnimation);
}
private void ExportBoneAnimation(GLTFAnimation gltfAnimation, int startFrame, int endFrame, GLTF gltf, BabylonBone babylonBone, GLTFNode gltfNode)
{
var channelList = gltfAnimation.ChannelList;
var samplerList = gltfAnimation.SamplerList;
if (babylonBone.animation != null && babylonBone.animation.property == "_matrix")
{
logger.RaiseMessage("GLTFExporter.Animation | Export animation of bone named: " + babylonBone.name, 2);
var babylonAnimation = babylonBone.animation;
// --- Input ---
var accessorInput = _createAndPopulateInput(gltf, babylonAnimation, startFrame, endFrame);
if (accessorInput == null)
{
return;
}
// --- Output ---
var paths = new string[] { "translation", "rotation", "scale" };
var accessorOutputByPath = new Dictionary <string, GLTFAccessor>();
foreach (string path in paths)
{
GLTFAccessor accessorOutput = _createAccessorOfPath(path, gltf);
accessorOutputByPath.Add(path, accessorOutput);
}
// Populate accessors
foreach (var babylonAnimationKey in babylonAnimation.keys)
{
if (babylonAnimationKey.frame < startFrame)
{
continue;
}
if (babylonAnimationKey.frame > endFrame)
{
continue;
}
var matrix = new BabylonMatrix();
matrix.m = babylonAnimationKey.values;
var translationBabylon = new BabylonVector3();
var rotationQuatBabylon = new BabylonQuaternion();
var scaleBabylon = new BabylonVector3();
matrix.decompose(scaleBabylon, rotationQuatBabylon, translationBabylon);
// Switch coordinate system at object level
translationBabylon.Z *= -1;
translationBabylon *= exportParameters.scaleFactor;
rotationQuatBabylon.X *= -1;
rotationQuatBabylon.Y *= -1;
var outputValuesByPath = new Dictionary <string, float[]>();
outputValuesByPath.Add("translation", translationBabylon.ToArray());
outputValuesByPath.Add("rotation", rotationQuatBabylon.ToArray());
outputValuesByPath.Add("scale", scaleBabylon.ToArray());
// Store values as bytes
foreach (string path in paths)
{
var accessorOutput = accessorOutputByPath[path];
var outputValues = outputValuesByPath[path];
foreach (var outputValue in outputValues)
{
accessorOutput.bytesList.AddRange(BitConverter.GetBytes(outputValue));
}
accessorOutput.count++;
}
}
;
foreach (string path in paths)
{
var accessorOutput = accessorOutputByPath[path];
// Animation sampler
var gltfAnimationSampler = new GLTFAnimationSampler
{
input = accessorInput.index,
output = accessorOutput.index
};
gltfAnimationSampler.index = samplerList.Count;
samplerList.Add(gltfAnimationSampler);
// Target
var gltfTarget = new GLTFChannelTarget
{
node = gltfNode.index
};
gltfTarget.path = path;
// Channel
var gltfChannel = new GLTFChannel
{
sampler = gltfAnimationSampler.index,
target = gltfTarget
};
channelList.Add(gltfChannel);
}
}
}
private void ExportBoneAnimation(GLTFAnimation gltfAnimation, int startFrame, int endFrame, GLTF gltf, BabylonBone babylonBone, GLTFNode gltfNode)
{
var channelList = gltfAnimation.ChannelList;
var samplerList = gltfAnimation.SamplerList;
if (babylonBone.animation != null && babylonBone.animation.property == "_matrix")
{
RaiseMessage("GLTFExporter.Animation | Export animation of bone named: " + babylonBone.name, 2);
var babylonAnimation = babylonBone.animation;
// Optimize animation
var optimizeAnimations = !Loader.Core.RootNode.GetBoolProperty("babylonjs_donotoptimizeanimations"); // reverse negation for clarity
if (optimizeAnimations)
{
// Filter animation keys to only keep frames between start and end
List <BabylonAnimationKey> keysInRangeFull = babylonAnimation.keysFull.FindAll(babylonAnimationKey => babylonAnimationKey.frame >= startFrame && babylonAnimationKey.frame <= endFrame);
// Optimization process always keeps first and last frames
OptimizeAnimations(keysInRangeFull, false);
if (IsAnimationKeysRelevant(keysInRangeFull))
{
// From now, use optimized animation instead
// Override animation keys
babylonAnimation.keys = keysInRangeFull.ToArray();
}
}
// --- Input ---
var accessorInput = _createAndPopulateInput(gltf, babylonAnimation, startFrame, endFrame);
if (accessorInput == null)
{
return;
}
// --- Output ---
var paths = new string[] { "translation", "rotation", "scale" };
var accessorOutputByPath = new Dictionary <string, GLTFAccessor>();
foreach (string path in paths)
{
GLTFAccessor accessorOutput = _createAccessorOfPath(path, gltf);
accessorOutputByPath.Add(path, accessorOutput);
}
// Populate accessors
QuatCorrection quatCorr = new QuatCorrection(); // restart correction for each curve
foreach (var babylonAnimationKey in babylonAnimation.keys)
{
if (babylonAnimationKey.frame < startFrame)
{
continue;
}
if (babylonAnimationKey.frame > endFrame)
{
continue;
}
var matrix = new BabylonMatrix();
matrix.m = babylonAnimationKey.values;
var translationBabylon = new BabylonVector3();
var rotationQuatBabylon = new BabylonQuaternion();
var scaleBabylon = new BabylonVector3();
matrix.decompose(scaleBabylon, rotationQuatBabylon, translationBabylon);
translationBabylon.Z *= -1;
if (exportParameters.kuesaContQuats)
{
quatCorr.Quat = rotationQuatBabylon;
rotationQuatBabylon = quatCorr.Quat;
}
rotationQuatBabylon.X *= -1;
rotationQuatBabylon.Y *= -1;
var outputValuesByPath = new Dictionary <string, float[]>();
outputValuesByPath.Add("translation", translationBabylon.ToArray());
outputValuesByPath.Add("rotation", rotationQuatBabylon.ToArray());
outputValuesByPath.Add("scale", scaleBabylon.ToArray());
// Store values as bytes
foreach (string path in paths)
{
var accessorOutput = accessorOutputByPath[path];
var outputValues = outputValuesByPath[path];
foreach (var outputValue in outputValues)
{
accessorOutput.bytesList.AddRange(BitConverter.GetBytes(outputValue));
}
accessorOutput.count++;
}
}
;
foreach (string path in paths)
{
var accessorOutput = accessorOutputByPath[path];
// Animation sampler
var gltfAnimationSampler = new GLTFAnimationSampler
{
input = accessorInput.index,
output = accessorOutput.index
};
gltfAnimationSampler.index = samplerList.Count;
samplerList.Add(gltfAnimationSampler);
// Target
var gltfTarget = new GLTFChannelTarget
{
node = gltfNode.index
};
gltfTarget.path = path;
// Channel
var gltfChannel = new GLTFChannel
{
sampler = gltfAnimationSampler.index,
target = gltfTarget
};
channelList.Add(gltfChannel);
}
}
}
private void ExportNodeAnimation(GLTFAnimation gltfAnimation, int startFrame, int endFrame, GLTF gltf, BabylonNode babylonNode, GLTFNode gltfNode, BabylonScene babylonScene)
{
var channelList = gltfAnimation.ChannelList;
var samplerList = gltfAnimation.SamplerList;
if ((babylonNode.animations != null && babylonNode.animations.Length > 0) ||
(babylonNode.extraAnimations != null && babylonNode.extraAnimations.Count > 0))
{
RaiseMessage("GLTFExporter.Animation | Export animation of node named: " + babylonNode.name, 2);
// Combine babylon animations from .babylon file and cached ones
var babylonAnimations = new List <BabylonAnimation>();
if (babylonNode.animations != null)
{
babylonAnimations.AddRange(babylonNode.animations);
}
if (babylonNode.extraAnimations != null)
{
babylonAnimations.AddRange(babylonNode.extraAnimations);
}
foreach (BabylonAnimation babylonAnimation in babylonAnimations)
{
// Target
var gltfTarget = new GLTFChannelTarget
{
node = gltfNode.index
};
gltfTarget.path = _getTargetPath(babylonAnimation.property);
if (gltfTarget.path == null)
{
// Unkown babylon animation property
//RaiseWarning("GLTFExporter.Animation | Unkown animation property '" + babylonAnimation.property + "'", 3);
// Ignore this babylon animation
continue;
}
// --- Input ---
var accessorInput = _createAndPopulateInput(gltf, babylonAnimation, startFrame, endFrame);
if (accessorInput == null)
{
continue;
}
// --- Output ---
GLTFAccessor accessorOutput = _createAccessorOfPath(gltfTarget.path, gltf);
// Populate accessor
int numKeys = 0;
foreach (var babylonAnimationKey in babylonAnimation.keys)
{
if (babylonAnimationKey.frame < startFrame)
{
continue;
}
if (babylonAnimationKey.frame > endFrame)
{
continue;
}
numKeys++;
var outputValues = babylonAnimationKey.values;
// Store values as bytes
foreach (var outputValue in outputValues)
{
accessorOutput.bytesList.AddRange(BitConverter.GetBytes(outputValue));
}
}
;
accessorOutput.count = numKeys;
// bail out if no keyframes to export (?)
// todo [KeyInterpolation]: bail out only when there are no keyframes at all (?) and otherwise add the appropriate (interpolated) keyframes
if (numKeys == 0)
{
continue;
}
// Animation sampler
var gltfAnimationSampler = new GLTFAnimationSampler
{
input = accessorInput.index,
output = accessorOutput.index
};
gltfAnimationSampler.index = samplerList.Count;
samplerList.Add(gltfAnimationSampler);
// Channel
var gltfChannel = new GLTFChannel
{
sampler = gltfAnimationSampler.index,
target = gltfTarget
};
channelList.Add(gltfChannel);
}
}
if (babylonNode.GetType() == typeof(BabylonMesh))
{
var babylonMesh = babylonNode as BabylonMesh;
// Morph targets
var babylonMorphTargetManager = GetBabylonMorphTargetManager(babylonScene, babylonMesh);
if (babylonMorphTargetManager != null)
{
ExportMorphTargetWeightAnimation(babylonMorphTargetManager, gltf, gltfNode, channelList, samplerList, startFrame, endFrame);
}
}
}
private void ExportNodeAnimation(GLTFAnimation gltfAnimation, int startFrame, int endFrame, GLTF gltf, BabylonNode babylonNode, GLTFNode gltfNode, BabylonScene babylonScene)
{
var channelList = gltfAnimation.ChannelList;
var samplerList = gltfAnimation.SamplerList;
bool exportNonAnimated = Loader.Core.RootNode.GetBoolProperty("babylonjs_animgroup_exportnonanimated");
// Combine babylon animations from .babylon file and cached ones
var babylonAnimations = new List <BabylonAnimation>();
if (babylonNode.animations != null)
{
babylonAnimations.AddRange(babylonNode.animations);
}
if (babylonNode.extraAnimations != null)
{
babylonAnimations.AddRange(babylonNode.extraAnimations);
}
// Filter animations to only keep TRS ones
babylonAnimations = babylonAnimations.FindAll(babylonAnimation => _getTargetPath(babylonAnimation.property) != null);
if (babylonAnimations.Count > 0 || exportNonAnimated)
{
if (babylonAnimations.Count > 0)
{
RaiseMessage("GLTFExporter.Animation | Export animations of node named: " + babylonNode.name, 2);
}
else if (exportNonAnimated)
{
RaiseMessage("GLTFExporter.Animation | Export dummy animation for node named: " + babylonNode.name, 2);
// Export a dummy animation
babylonAnimations.Add(GetDummyAnimation(gltfNode, startFrame, endFrame));
}
foreach (BabylonAnimation babylonAnimation in babylonAnimations)
{
// Target
var gltfTarget = new GLTFChannelTarget
{
node = gltfNode.index
};
gltfTarget.path = _getTargetPath(babylonAnimation.property);
// --- Input ---
var accessorInput = _createAndPopulateInput(gltf, babylonAnimation, startFrame, endFrame);
if (accessorInput == null)
{
continue;
}
// --- Output ---
GLTFAccessor accessorOutput = _createAccessorOfPath(gltfTarget.path, gltf);
// Populate accessor
int numKeys = 0;
foreach (var babylonAnimationKey in babylonAnimation.keys)
{
if (babylonAnimationKey.frame < startFrame)
{
continue;
}
if (babylonAnimationKey.frame > endFrame)
{
continue;
}
numKeys++;
// copy data before changing it in case animation groups overlap
float[] outputValues = new float[babylonAnimationKey.values.Length];
babylonAnimationKey.values.CopyTo(outputValues, 0);
// Switch coordinate system at object level
if (babylonAnimation.property == "position")
{
outputValues[2] *= -1;
}
else if (babylonAnimation.property == "rotationQuaternion")
{
outputValues[0] *= -1;
outputValues[1] *= -1;
}
// Store values as bytes
foreach (var outputValue in outputValues)
{
accessorOutput.bytesList.AddRange(BitConverter.GetBytes(outputValue));
}
}
;
accessorOutput.count = numKeys;
// bail out if no keyframes to export (?)
// todo [KeyInterpolation]: bail out only when there are no keyframes at all (?) and otherwise add the appropriate (interpolated) keyframes
if (numKeys == 0)
{
continue;
}
// Animation sampler
var gltfAnimationSampler = new GLTFAnimationSampler
{
input = accessorInput.index,
output = accessorOutput.index
};
gltfAnimationSampler.index = samplerList.Count;
samplerList.Add(gltfAnimationSampler);
// Channel
var gltfChannel = new GLTFChannel
{
sampler = gltfAnimationSampler.index,
target = gltfTarget
};
channelList.Add(gltfChannel);
}
}
if (babylonNode.GetType() == typeof(BabylonMesh))
{
var babylonMesh = babylonNode as BabylonMesh;
// Morph targets
var babylonMorphTargetManager = GetBabylonMorphTargetManager(babylonScene, babylonMesh);
if (babylonMorphTargetManager != null)
{
ExportMorphTargetWeightAnimation(babylonMorphTargetManager, gltf, gltfNode, channelList, samplerList, startFrame, endFrame);
}
}
}
private static float FPS_FACTOR = 30.0f; // TODO - Which FPS factor ?
private GLTFAnimation ExportNodeAnimation(BabylonNode babylonNode, GLTF gltf, GLTFNode gltfNode, BabylonScene babylonScene = null)
{
var channelList = new List <GLTFChannel>();
var samplerList = new List <GLTFAnimationSampler>();
if (babylonNode.animations != null && babylonNode.animations.Length > 0)
{
RaiseMessage("GLTFExporter.Animation | Export animation of node named: " + babylonNode.name, 2);
foreach (BabylonAnimation babylonAnimation in babylonNode.animations)
{
// Target
var gltfTarget = new GLTFChannelTarget
{
node = gltfNode.index
};
gltfTarget.path = _getTargetPath(babylonAnimation.property);
if (gltfTarget.path == null)
{
// Unkown babylon animation property
RaiseWarning("GLTFExporter.Animation | Unkown animation property '" + babylonAnimation.property + "'", 3);
// Ignore this babylon animation
continue;
}
// --- Input ---
var accessorInput = _createAndPopulateInput(gltf, babylonAnimation);
// --- Output ---
GLTFAccessor accessorOutput = _createAccessorOfPath(gltfTarget.path, gltf);
// Populate accessor
foreach (var babylonAnimationKey in babylonAnimation.keys)
{
var outputValues = babylonAnimationKey.values;
// Store values as bytes
foreach (var outputValue in outputValues)
{
accessorOutput.bytesList.AddRange(BitConverter.GetBytes(outputValue));
}
}
;
accessorOutput.count = babylonAnimation.keys.Length;
// Animation sampler
var gltfAnimationSampler = new GLTFAnimationSampler
{
input = accessorInput.index,
output = accessorOutput.index
};
gltfAnimationSampler.index = samplerList.Count;
samplerList.Add(gltfAnimationSampler);
// Channel
var gltfChannel = new GLTFChannel
{
sampler = gltfAnimationSampler.index,
target = gltfTarget
};
channelList.Add(gltfChannel);
}
}
if (babylonNode.GetType() == typeof(BabylonMesh))
{
var babylonMesh = babylonNode as BabylonMesh;
// Morph targets
var babylonMorphTargetManager = GetBabylonMorphTargetManager(babylonScene, babylonMesh);
if (babylonMorphTargetManager != null)
{
ExportMorphTargetWeightAnimation(babylonMorphTargetManager, gltf, gltfNode, channelList, samplerList);
}
}
// Do not export empty arrays
if (channelList.Count > 0)
{
// Animation
var gltfAnimation = new GLTFAnimation
{
channels = channelList.ToArray(),
samplers = samplerList.ToArray()
};
gltf.AnimationsList.Add(gltfAnimation);
return(gltfAnimation);
}
else
{
return(null);
}
}
private void ExportAnimatedNode(GLTF gltf, BabylonNode node, GLTFNode gltfNode, GLTFAnimation gltfAnimation, int startFrame, int endFrame, BabylonAnimationGroup animGroup = null)
{
bool nodeHasAnimations = node.animations != null && node.animations.Length > 0 && node.animations[0] != null;
bool nodeHasExtraAnimations = node.extraAnimations != null && node.extraAnimations.Count > 0 && node.extraAnimations[0] != null;
BabylonMesh meshNode = node as BabylonMesh;
BabylonMorphTargetManager morphTargetManager = null;
bool nodeHasAnimatedMorphTargets = false;
if (meshNode != null && meshNode.morphTargetManagerId != null)
{
morphTargetManager = GetBabylonMorphTargetManager(babylonScene, meshNode);
if (morphTargetManager != null)
{
nodeHasAnimatedMorphTargets = morphTargetManager.targets.Any(target => target.animations != null && target.animations.Length > 0 && target.animations[0] != null);
}
}
if (!nodeHasAnimations && !nodeHasExtraAnimations && !nodeHasAnimatedMorphTargets)
{
return;
}
if (nodeHasAnimations && node.animations[0].property == "_matrix")
{
ExportBoneAnimation(gltfAnimation, startFrame, endFrame, gltf, node, gltfNode, animGroup);
}
else
{
ExportNodeAnimation(gltfAnimation, startFrame, endFrame, gltf, node, gltfNode, babylonScene, animGroup);
}
if (nodeHasAnimatedMorphTargets)
{
ExportMorphTargetWeightAnimation(morphTargetManager, gltf, gltfNode, gltfAnimation.ChannelList, gltfAnimation.SamplerList, startFrame, endFrame, babylonScene);
}
}
private void ExportGenericPropertyAnimation <T1, T2>(GLTFAnimation gltfAnimation, int startFrame, int endFrame, GLTF gltf, T1 babylonObject, T2 gltfObject, BabylonScene babylonScene)
{
AnimationExtensionInfo info = new AnimationExtensionInfo(startFrame, endFrame);
ExportGLTFExtension(babylonObject, ref gltfAnimation, gltf, info);
}
private void ExportMaterialAnimation(GLTFAnimation gltfAnimation, int startFrame, int endFrame, GLTF gltf, BabylonMaterial babylonMaterial, GLTFMaterial gltfMaterial, BabylonScene babylonScene)
{
AnimationExtensionInfo info = new AnimationExtensionInfo(startFrame, endFrame);
ExportGLTFExtension(babylonMaterial, ref gltfAnimation, gltf, info);
}
private void ExportAnimationGroups(GLTF gltf, BabylonScene babylonScene)
{
// Retreive and parse animation group data
AnimationGroupList animationList = InitAnimationGroups();
gltf.AnimationsList.Clear();
gltf.AnimationsList.Capacity = Math.Max(gltf.AnimationsList.Capacity, animationList.Count);
if (animationList.Count <= 0)
{
RaiseMessage("GLTFExporter.Animation | No AnimationGroups: exporting all animations together.", 1);
GLTFAnimation gltfAnimation = new GLTFAnimation();
gltfAnimation.name = "All Animations";
int minFrame = Loader.Core.AnimRange.Start / Loader.Global.TicksPerFrame;
int maxFrame = Loader.Core.AnimRange.End / Loader.Global.TicksPerFrame;
foreach (var pair in nodeToGltfNodeMap)
{
ExportNodeAnimation(gltfAnimation, minFrame, maxFrame, gltf, pair.Key, pair.Value, babylonScene);
}
foreach (var pair in boneToGltfNodeMap)
{
ExportBoneAnimation(gltfAnimation, minFrame, maxFrame, gltf, pair.Key, pair.Value);
}
if (gltfAnimation.ChannelList.Count > 0)
{
gltf.AnimationsList.Add(gltfAnimation);
}
else
{
RaiseMessage("GLTFExporter.Animation | No animation data for this animation, it is ignored.", 2);
}
}
else
{
foreach (AnimationGroup animGroup in animationList)
{
RaiseMessage("GLTFExporter.Animation | " + animGroup.Name, 1);
GLTFAnimation gltfAnimation = new GLTFAnimation();
gltfAnimation.name = animGroup.Name;
int startFrame = animGroup.FrameStart;
int endFrame = animGroup.FrameEnd;
foreach (uint nodeHandle in animGroup.NodeHandles)
{
// todo: make something a little more efficient..
IINode maxNode = Loader.Core.RootNode.FindChildNode(nodeHandle);
// node could have been deleted, silently ignore it
if (maxNode == null)
{
continue;
}
string id = maxNode.GetGuid().ToString();
BabylonNode babylonNode = babylonNodes.Find(node => node.id.Equals(id));
if (babylonNode != null && nodeToGltfNodeMap.TryGetValue(babylonNode, out GLTFNode gltfNode))
{
ExportNodeAnimation(gltfAnimation, startFrame, endFrame, gltf, babylonNode, gltfNode, babylonScene);
}
// export all bones that match this id
foreach (KeyValuePair <BabylonBone, GLTFNode> pair in boneToGltfNodeMap)
{
if (pair.Key.id.Equals(id))
{
ExportBoneAnimation(gltfAnimation, startFrame, endFrame, gltf, pair.Key, pair.Value);
}
}
}
if (gltfAnimation.ChannelList.Count > 0)
{
gltf.AnimationsList.Add(gltfAnimation);
}
else
{
RaiseMessage("No data exported for this animation, it is ignored.", 2);
}
}
}
}
private int AddParameterSamplerAnimation(BabylonCamera babylonCamera, GLTFAnimation gltfAnimation, GLTFExporter exporter, GLTF gltf, int startFrame, int endFrame)
{
var samplerList = gltfAnimation.SamplerList;
// Combine babylon animations from .babylon file and cached ones
var babylonAnimations = new List <BabylonAnimation>();
if (babylonCamera.animations != null)
{
IEnumerable <BabylonAnimation> extendedAnimations = babylonCamera.animations.Where(anim => anim.name == "fov animation");
babylonAnimations.AddRange(extendedAnimations);
}
if (babylonAnimations.Count > 0)
{
if (babylonAnimations.Count > 0)
{
exporter.logger.RaiseMessage("GLTFExporter.Animation | Export animations of node named: " + babylonCamera.name, 2);
}
foreach (BabylonAnimation babylonAnimation in babylonAnimations)
{
var babylonAnimationKeysInRange = babylonAnimation.keys.Where(key => key.frame >= startFrame && key.frame <= endFrame);
if (babylonAnimationKeysInRange.Count() <= 0)
{
continue;
}
string target_path = babylonAnimation.property;
// --- Input ---
var accessorInput = exporter._createAndPopulateInput(gltf, babylonAnimation, startFrame, endFrame);
if (accessorInput == null)
{
continue;
}
// --- Output ---
GLTFAccessor accessorOutput = FlightSimAsoboPropertyAnimationExtension._createAccessorOfProperty(target_path, gltf);
if (accessorOutput == null)
{
continue;
}
// Populate accessor
int numKeys = 0;
foreach (var babylonAnimationKey in babylonAnimationKeysInRange)
{
numKeys++;
// copy data before changing it in case animation groups overlap
float[] outputValues = new float[babylonAnimationKey.values.Length];
babylonAnimationKey.values.CopyTo(outputValues, 0);
// Store values as bytes
foreach (var outputValue in outputValues)
{
accessorOutput.bytesList.AddRange(BitConverter.GetBytes(outputValue));
}
}
;
accessorOutput.count = numKeys;
if (accessorOutput.count == 0)
{
exporter.logger.RaiseWarning(String.Format("GLTFExporter.Animation | No frames to export in material animation \"{1}\" of node named \"{0}\". This will cause an error in the output gltf.", babylonCamera.name, babylonAnimation.name));
}
// Animation sampler
var gltfAnimationSampler = new GLTFAnimationSampler
{
input = accessorInput.index,
output = accessorOutput.index
};
gltfAnimationSampler.index = samplerList.Count;
samplerList.Add(gltfAnimationSampler);
}
}
else
{
return(-1);
}
return(samplerList.Count - 1);
}
private void ExportNodeAnimation(GLTFAnimation gltfAnimation, int startFrame, int endFrame, GLTF gltf, BabylonNode babylonNode, GLTFNode gltfNode, BabylonScene babylonScene)
{
var channelList = gltfAnimation.ChannelList;
var samplerList = gltfAnimation.SamplerList;
bool exportNonAnimated = Loader.Core.RootNode.GetBoolProperty("babylonjs_animgroup_exportnonanimated");
// Combine babylon animations from .babylon file and cached ones
var babylonAnimations = new List <BabylonAnimation>();
if (babylonNode.animations != null)
{
babylonAnimations.AddRange(babylonNode.animations);
}
if (babylonNode.extraAnimations != null)
{
babylonAnimations.AddRange(babylonNode.extraAnimations);
}
// Filter animations to only keep TRS ones
babylonAnimations = babylonAnimations.FindAll(babylonAnimation => _getTargetPath(babylonAnimation.property) != null);
// Optimize animations to only keep ones animated between start and end frames
var optimizeAnimations = !Loader.Core.RootNode.GetBoolProperty("babylonjs_donotoptimizeanimations"); // reverse negation for clarity
if (optimizeAnimations)
{
List <BabylonAnimation> babylonAnimationsOptimized = new List <BabylonAnimation>();
foreach (BabylonAnimation babylonAnimation in babylonAnimations)
{
// Filter animation keys to only keep frames between start and end
List <BabylonAnimationKey> keysInRangeFull = babylonAnimation.keysFull.FindAll(babylonAnimationKey => babylonAnimationKey.frame >= startFrame && babylonAnimationKey.frame <= endFrame);
// Optimization process always keeps first and last frames
OptimizeAnimations(keysInRangeFull, true);
if (IsAnimationKeysRelevant(keysInRangeFull))
{
// Override animation keys
babylonAnimation.keys = keysInRangeFull.ToArray();
babylonAnimationsOptimized.Add(babylonAnimation);
}
}
// From now, use optimized animations instead
babylonAnimations = babylonAnimationsOptimized;
}
if (babylonAnimations.Count > 0 || exportNonAnimated)
{
if (babylonAnimations.Count > 0)
{
RaiseMessage("GLTFExporter.Animation | Export animations of node named: " + babylonNode.name, 2);
}
else if (exportNonAnimated)
{
RaiseMessage("GLTFExporter.Animation | Export dummy animation for node named: " + babylonNode.name, 2);
// Export a dummy animation
babylonAnimations.Add(GetDummyAnimation(gltfNode, startFrame, endFrame));
}
foreach (BabylonAnimation babylonAnimation in babylonAnimations)
{
// Target
var gltfTarget = new GLTFChannelTarget
{
node = gltfNode.index
};
gltfTarget.path = _getTargetPath(babylonAnimation.property);
// --- Input ---
var accessorInput = _createAndPopulateInput(gltf, babylonAnimation, startFrame, endFrame);
if (accessorInput == null)
{
continue;
}
// --- Output ---
GLTFAccessor accessorOutput = _createAccessorOfPath(gltfTarget.path, gltf);
// Populate accessor
int numKeys = 0;
QuatCorrection quatCorr = new QuatCorrection(); // restart correction for each curve
foreach (var babylonAnimationKey in babylonAnimation.keys)
{
if (babylonAnimationKey.frame < startFrame)
{
continue;
}
if (babylonAnimationKey.frame > endFrame)
{
continue;
}
numKeys++;
// copy data before changing it in case animation groups overlap
float[] outputValues = new float[babylonAnimationKey.values.Length];
babylonAnimationKey.values.CopyTo(outputValues, 0);
// Switch coordinate system at object level
if (babylonAnimation.property == "position")
{
outputValues[2] *= -1;
}
else if (babylonAnimation.property == "rotationQuaternion")
{
quatCorr.Quat = new BabylonQuaternion(outputValues[0], outputValues[1], outputValues[2], outputValues[3]);
if (exportParameters.kuesaContQuats)
{
quatCorr.Quat = new BabylonQuaternion(outputValues[0], outputValues[1], outputValues[2], outputValues[3]);
outputValues[0] = quatCorr.Quat.X;
outputValues[1] = quatCorr.Quat.Y;
outputValues[2] = quatCorr.Quat.Z;
outputValues[3] = quatCorr.Quat.W;
}
outputValues[0] *= -1;
outputValues[1] *= -1;
}
// Store values as bytes
foreach (var outputValue in outputValues)
{
accessorOutput.bytesList.AddRange(BitConverter.GetBytes(outputValue));
}
}
;
accessorOutput.count = numKeys;
// bail out if no keyframes to export (?)
// todo [KeyInterpolation]: bail out only when there are no keyframes at all (?) and otherwise add the appropriate (interpolated) keyframes
if (numKeys == 0)
{
continue;
}
// Animation sampler
var gltfAnimationSampler = new GLTFAnimationSampler
{
input = accessorInput.index,
output = accessorOutput.index
};
gltfAnimationSampler.index = samplerList.Count;
samplerList.Add(gltfAnimationSampler);
// Channel
var gltfChannel = new GLTFChannel
{
sampler = gltfAnimationSampler.index,
target = gltfTarget
};
channelList.Add(gltfChannel);
}
}
if (babylonNode.GetType() == typeof(BabylonMesh))
{
var babylonMesh = babylonNode as BabylonMesh;
// Morph targets
var babylonMorphTargetManager = GetBabylonMorphTargetManager(babylonScene, babylonMesh);
if (babylonMorphTargetManager != null)
{
ExportMorphTargetWeightAnimation(babylonMorphTargetManager, gltf, gltfNode, channelList, samplerList, startFrame, endFrame);
}
}
}
private static float FPS_FACTOR = 30.0f; // TODO - Which FPS factor ?
private GLTFAnimation ExportNodeAnimation(BabylonNode babylonNode, GLTF gltf, GLTFNode gltfNode, BabylonScene babylonScene = null)
{
GLTFAnimation gltfAnimation = null;
if (gltf.AnimationsList.Count > 0)
{
gltfAnimation = gltf.AnimationsList[0];
}
else
{
gltfAnimation = new GLTFAnimation();
gltf.AnimationsList.Add(gltfAnimation);
}
var channelList = gltfAnimation.ChannelList;
var samplerList = gltfAnimation.SamplerList;
if ((babylonNode.animations != null && babylonNode.animations.Length > 0) ||
(babylonNode.extraAnimations != null && babylonNode.extraAnimations.Count > 0))
{
RaiseMessage("GLTFExporter.Animation | Export animation of node named: " + babylonNode.name, 2);
// Combine babylon animations from .babylon file and cached ones
var babylonAnimations = new List <BabylonAnimation>();
if (babylonNode.animations != null)
{
babylonAnimations.AddRange(babylonNode.animations);
}
if (babylonNode.extraAnimations != null)
{
babylonAnimations.AddRange(babylonNode.extraAnimations);
}
foreach (BabylonAnimation babylonAnimation in babylonAnimations)
{
// Target
var gltfTarget = new GLTFChannelTarget
{
node = gltfNode.index
};
gltfTarget.path = _getTargetPath(babylonAnimation.property);
if (gltfTarget.path == null)
{
// Unkown babylon animation property
//RaiseWarning("GLTFExporter.Animation | Unkown animation property '" + babylonAnimation.property + "'", 3);
// Ignore this babylon animation
continue;
}
// --- Input ---
var accessorInput = _createAndPopulateInput(gltf, babylonAnimation);
// --- Output ---
GLTFAccessor accessorOutput = _createAccessorOfPath(gltfTarget.path, gltf);
// Populate accessor
foreach (var babylonAnimationKey in babylonAnimation.keys)
{
var outputValues = babylonAnimationKey.values;
// Switch coordinate system at object level
if (babylonAnimation.property == "position")
{
outputValues[2] *= -1;
}
else if (babylonAnimation.property == "rotationQuaternion")
{
outputValues[0] *= -1;
outputValues[1] *= -1;
}
// Store values as bytes
foreach (var outputValue in outputValues)
{
accessorOutput.bytesList.AddRange(BitConverter.GetBytes(outputValue));
}
}
;
accessorOutput.count = babylonAnimation.keys.Length;
// Animation sampler
var gltfAnimationSampler = new GLTFAnimationSampler
{
input = accessorInput.index,
output = accessorOutput.index
};
gltfAnimationSampler.index = samplerList.Count;
samplerList.Add(gltfAnimationSampler);
// Channel
var gltfChannel = new GLTFChannel
{
sampler = gltfAnimationSampler.index,
target = gltfTarget
};
channelList.Add(gltfChannel);
}
}
if (babylonNode.GetType() == typeof(BabylonMesh))
{
var babylonMesh = babylonNode as BabylonMesh;
// Morph targets
var babylonMorphTargetManager = GetBabylonMorphTargetManager(babylonScene, babylonMesh);
if (babylonMorphTargetManager != null)
{
ExportMorphTargetWeightAnimation(babylonMorphTargetManager, gltf, gltfNode, channelList, samplerList);
}
}
return(gltfAnimation);
}
private static float FPS_FACTOR = 60.0f; // TODO - Which FPS factor ?
private GLTFAnimation ExportNodeAnimation(BabylonNode babylonNode, GLTF gltf, GLTFNode gltfNode, BabylonScene babylonScene = null)
{
var channelList = new List <GLTFChannel>();
var samplerList = new List <GLTFAnimationSampler>();
if (babylonNode.animations != null && babylonNode.animations.Length > 0)
{
RaiseMessage("GLTFExporter.Animation | Export animation of node named: " + babylonNode.name, 2);
foreach (BabylonAnimation babylonAnimation in babylonNode.animations)
{
// Target
var gltfTarget = new GLTFChannelTarget
{
node = gltfNode.index
};
gltfTarget.path = _getTargetPath(babylonAnimation.property);
if (gltfTarget.path == null)
{
// Unkown babylon animation property
RaiseWarning("GLTFExporter.Animation | Unkown animation property '" + babylonAnimation.property + "'", 3);
// Ignore this babylon animation
continue;
}
// Buffer
var buffer = GLTFBufferService.Instance.GetBuffer(gltf);
// --- Input ---
var accessorInput = GLTFBufferService.Instance.CreateAccessor(
gltf,
GLTFBufferService.Instance.GetBufferViewAnimationFloatScalar(gltf, buffer),
"accessorAnimationInput",
GLTFAccessor.ComponentType.FLOAT,
GLTFAccessor.TypeEnum.SCALAR
);
// Populate accessor
accessorInput.min = new float[] { float.MaxValue };
accessorInput.max = new float[] { float.MinValue };
foreach (var babylonAnimationKey in babylonAnimation.keys)
{
var inputValue = babylonAnimationKey.frame / FPS_FACTOR;
// Store values as bytes
accessorInput.bytesList.AddRange(BitConverter.GetBytes(inputValue));
// Update min and max values
GLTFBufferService.UpdateMinMaxAccessor(accessorInput, inputValue);
}
;
accessorInput.count = babylonAnimation.keys.Length;
// --- Output ---
GLTFAccessor accessorOutput = null;
switch (gltfTarget.path)
{
case "translation":
accessorOutput = GLTFBufferService.Instance.CreateAccessor(
gltf,
GLTFBufferService.Instance.GetBufferViewAnimationFloatVec3(gltf, buffer),
"accessorAnimationPositions",
GLTFAccessor.ComponentType.FLOAT,
GLTFAccessor.TypeEnum.VEC3
);
break;
case "rotation":
accessorOutput = GLTFBufferService.Instance.CreateAccessor(
gltf,
GLTFBufferService.Instance.GetBufferViewAnimationFloatVec4(gltf, buffer),
"accessorAnimationRotations",
GLTFAccessor.ComponentType.FLOAT,
GLTFAccessor.TypeEnum.VEC4
);
break;
case "scale":
accessorOutput = GLTFBufferService.Instance.CreateAccessor(
gltf,
GLTFBufferService.Instance.GetBufferViewAnimationFloatVec3(gltf, buffer),
"accessorAnimationScales",
GLTFAccessor.ComponentType.FLOAT,
GLTFAccessor.TypeEnum.VEC3
);
break;
}
// Populate accessor
foreach (var babylonAnimationKey in babylonAnimation.keys)
{
var outputValues = babylonAnimationKey.values;
// Store values as bytes
foreach (var outputValue in outputValues)
{
accessorOutput.bytesList.AddRange(BitConverter.GetBytes(outputValue));
}
}
;
accessorOutput.count = babylonAnimation.keys.Length;
// Animation sampler
var gltfAnimationSampler = new GLTFAnimationSampler
{
input = accessorInput.index,
output = accessorOutput.index
};
gltfAnimationSampler.index = samplerList.Count;
samplerList.Add(gltfAnimationSampler);
// Channel
var gltfChannel = new GLTFChannel
{
sampler = gltfAnimationSampler.index,
target = gltfTarget
};
channelList.Add(gltfChannel);
}
}
if (babylonNode.GetType() == typeof(BabylonMesh))
{
var babylonMesh = babylonNode as BabylonMesh;
// Morph targets
var babylonMorphTargetManager = GetBabylonMorphTargetManager(babylonScene, babylonMesh);
if (babylonMorphTargetManager != null)
{
ExportMorphTargetWeightAnimation(babylonMorphTargetManager, gltf, gltfNode, channelList, samplerList);
}
}
// Do not export empty arrays
if (channelList.Count > 0)
{
// Animation
var gltfAnimation = new GLTFAnimation
{
channels = channelList.ToArray(),
samplers = samplerList.ToArray()
};
gltf.AnimationsList.Add(gltfAnimation);
return(gltfAnimation);
}
else
{
return(null);
}
}
private void ExportAnimationGroups(GLTF gltf, BabylonScene babylonScene)
{
// Retreive and parse animation group data
var animationGroupList = babylonScene.animationGroups;
var animationGroupCount = animationGroupList == null ? 0 : animationGroupList.Count;
gltf.AnimationsList.Clear();
gltf.AnimationsList.Capacity = Math.Max(gltf.AnimationsList.Capacity, animationGroupCount);
if (animationGroupCount <= 0)
{
logger.RaiseMessage("GLTFExporter.Animation | No AnimationGroups: exporting all animations together.", 1);
GLTFAnimation gltfAnimation = new GLTFAnimation();
gltfAnimation.name = "All Animations";
int minFrame = babylonScene.TimelineStartFrame;
int maxFrame = babylonScene.TimelineEndFrame;
foreach (var pair in nodeToGltfNodeMap)
{
ExportNodeAnimation(gltfAnimation, minFrame, maxFrame, gltf, pair.Key, pair.Value, babylonScene);
}
foreach (var pair in boneToGltfNodeMap)
{
ExportBoneAnimation(gltfAnimation, minFrame, maxFrame, gltf, pair.Key, pair.Value);
}
if (gltfAnimation.ChannelList.Count > 0)
{
gltf.AnimationsList.Add(gltfAnimation);
}
else
{
logger.RaiseMessage("GLTFExporter.Animation | No animation data for this animation, it is ignored.", 2);
}
}
else
{
foreach (BabylonAnimationGroup animGroup in animationGroupList)
{
logger.RaiseMessage("GLTFExporter.Animation | " + animGroup.name, 1);
GLTFAnimation gltfAnimation = new GLTFAnimation();
gltfAnimation.name = animGroup.name;
int startFrame = MathUtilities.RoundToInt(animGroup.from);
int endFrame = MathUtilities.RoundToInt(animGroup.to);
var uniqueNodeIds = animGroup.targetedAnimations.Select(targetAnim => targetAnim.targetId).Distinct();
foreach (var id in uniqueNodeIds)
{
BabylonNode babylonNode = babylonNodes.Find(node => node.id.Equals(id));
GLTFNode gltfNode;
if (babylonNode != null && nodeToGltfNodeMap.TryGetValue(babylonNode, out gltfNode))
{
ExportNodeAnimation(gltfAnimation, startFrame, endFrame, gltf, babylonNode, gltfNode, babylonScene);
}
// export all bones that match this id
foreach (KeyValuePair <BabylonBone, GLTFNode> pair in boneToGltfNodeMap)
{
if (pair.Key.id.Equals(id))
{
ExportBoneAnimation(gltfAnimation, startFrame, endFrame, gltf, pair.Key, pair.Value);
}
}
}
if (gltfAnimation.ChannelList.Count > 0)
{
gltf.AnimationsList.Add(gltfAnimation);
}
else
{
logger.RaiseMessage("No data exported for this animation, it is ignored.", 2);
}
}
}
}
