private IList <BabylonAnimationGroup> ExportAnimationGroups(BabylonScene babylonScene)
{
IList <BabylonAnimationGroup> animationGroups = new List <BabylonAnimationGroup>();
// Retrieve and parse animation group data
AnimationGroupList animationList = InitAnimationGroups();
foreach (AnimationGroup animGroup in animationList)
{
RaiseMessage("Exporter.animationGroups | " + animGroup.Name, 1);
BabylonAnimationGroup animationGroup = new BabylonAnimationGroup
{
name = animGroup.Name,
from = animGroup.FrameStart,
to = animGroup.FrameEnd,
targetedAnimations = new List <BabylonTargetedAnimation>()
};
// add animations of each nodes contained in the animGroup
foreach (uint nodeHandle in animGroup.NodeHandles)
{
IINode maxNode = Loader.Core.RootNode.FindChildNode(nodeHandle);
// node could have been deleted, silently ignore it
if (maxNode == null)
{
continue;
}
// Helpers can be exported as dummies and as bones
string nodeId = maxNode.GetGuid().ToString();
string boneId = maxNode.GetGuid().ToString() + "-bone"; // the suffix "-bone" is added in babylon export format to assure the uniqueness of IDs
// Node
BabylonNode node = babylonScene.MeshesList.FirstOrDefault(m => m.id == nodeId);
if (node == null)
{
node = babylonScene.CamerasList.FirstOrDefault(c => c.id == nodeId);
}
if (node == null)
{
node = babylonScene.LightsList.FirstOrDefault(l => l.id == nodeId);
}
if (node != null)
{
if (node.animations != null && node.animations.Length != 0)
{
IList <BabylonAnimation> animations = GetSubAnimations(node, animationGroup.from, animationGroup.to);
foreach (BabylonAnimation animation in animations)
{
BabylonTargetedAnimation targetedAnimation = new BabylonTargetedAnimation
{
animation = animation,
targetId = nodeId
};
animationGroup.targetedAnimations.Add(targetedAnimation);
}
}
else if (exportNonAnimated)
{
BabylonTargetedAnimation targetedAnimation = new BabylonTargetedAnimation
{
animation = CreatePositionAnimation(animationGroup.from, animationGroup.to, node.position),
targetId = node.id
};
animationGroup.targetedAnimations.Add(targetedAnimation);
}
}
// bone
BabylonBone bone = null;
int index = 0;
while (index < babylonScene.SkeletonsList.Count && bone == null)
{
BabylonSkeleton skel = babylonScene.SkeletonsList[index];
bone = skel.bones.FirstOrDefault(b => b.id == boneId);
index++;
}
if (bone != null)
{
if (bone.animation != null)
{
IList <BabylonAnimation> animations = GetSubAnimations(bone, animationGroup.from, animationGroup.to);
foreach (BabylonAnimation animation in animations)
{
BabylonTargetedAnimation targetedAnimation = new BabylonTargetedAnimation
{
animation = animation,
targetId = boneId
};
animationGroup.targetedAnimations.Add(targetedAnimation);
}
}
else if (exportNonAnimated)
{
BabylonTargetedAnimation targetedAnimation = new BabylonTargetedAnimation
{
animation = CreateMatrixAnimation(animationGroup.from, animationGroup.to, bone.matrix),
targetId = bone.id
};
animationGroup.targetedAnimations.Add(targetedAnimation);
}
}
}
if (animationGroup.targetedAnimations.Count > 0)
{
animationGroups.Add(animationGroup);
}
}
return(animationGroups);
}
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 IList <BabylonAnimationGroup> ExportAnimationGroups(BabylonScene babylonScene)
{
IList <BabylonAnimationGroup> animationGroups = new List <BabylonAnimationGroup>();
// Retrieve and parse animation group data
AnimationGroupList animationList = InitAnimationGroups();
bool exportNonAnimated = Loader.GetBoolProperty("babylonjs_animgroup_exportnonanimated");
foreach (AnimationGroup animGroup in animationList)
{
RaiseMessage("Exporter.animationGroups | " + animGroup.Name, 1);
BabylonAnimationGroup animationGroup = new BabylonAnimationGroup
{
name = animGroup.Name,
from = animGroup.FrameStart,
to = animGroup.FrameEnd,
targetedAnimations = new List <BabylonTargetedAnimation>()
};
// add animations of each nodes in the animGroup
List <BabylonNode> nodes = new List <BabylonNode>();
nodes.AddRange(babylonScene.MeshesList);
nodes.AddRange(babylonScene.CamerasList);
nodes.AddRange(babylonScene.LightsList);
foreach (BabylonMorphTargetManager morphTargetManager in babylonScene.MorphTargetManagersList)
{
var morphTargets = morphTargetManager.targets;
foreach (BabylonMorphTarget morphTarget in morphTargets)
{
var animations = GetSubAnimations(morphTarget, animationGroup.from, animationGroup.to);
foreach (BabylonAnimation animation in animations)
{
BabylonTargetedAnimation targetedAnimation = new BabylonTargetedAnimation
{
animation = animation,
targetId = morphTarget.id
};
animationGroup.targetedAnimations.Add(targetedAnimation);
}
}
}
foreach (BabylonNode node in nodes)
{
if (node.animations != null && node.animations.Length != 0)
{
IList <BabylonAnimation> animations = GetSubAnimations(node, animationGroup.from, animationGroup.to);
foreach (BabylonAnimation animation in animations)
{
BabylonTargetedAnimation targetedAnimation = new BabylonTargetedAnimation
{
animation = animation,
targetId = node.id
};
animationGroup.targetedAnimations.Add(targetedAnimation);
}
}
else if (exportNonAnimated)
{
BabylonTargetedAnimation targetedAnimation = new BabylonTargetedAnimation
{
animation = CreatePositionAnimation(animationGroup.from, animationGroup.to, node.position),
targetId = node.id
};
animationGroup.targetedAnimations.Add(targetedAnimation);
}
}
foreach (BabylonSkeleton skel in babylonScene.SkeletonsList)
{
foreach (BabylonBone bone in skel.bones)
{
if (bone.animation != null)
{
IList <BabylonAnimation> animations = GetSubAnimations(bone, animationGroup.from, animationGroup.to);
foreach (BabylonAnimation animation in animations)
{
BabylonTargetedAnimation targetedAnimation = new BabylonTargetedAnimation
{
animation = animation,
targetId = bone.id
};
animationGroup.targetedAnimations.Add(targetedAnimation);
}
}
else if (exportNonAnimated)
{
BabylonTargetedAnimation targetedAnimation = new BabylonTargetedAnimation
{
animation = CreateMatrixAnimation(animationGroup.from, animationGroup.to, bone.matrix),
targetId = bone.id
};
animationGroup.targetedAnimations.Add(targetedAnimation);
}
}
}
if (animationGroup.targetedAnimations.Count > 0)
{
animationGroups.Add(animationGroup);
}
}
return(animationGroups);
}
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 IList <BabylonAnimationGroup> ExportAnimationGroups(BabylonScene babylonScene)
{
IList <BabylonAnimationGroup> animationGroups = new List <BabylonAnimationGroup>();
// Retrieve and parse animation group data
AnimationGroupList animationList = AnimationGroupList.InitAnimationGroups(logger);
foreach (AnimationGroup animGroup in animationList)
{
logger?.RaiseMessage("Exporter.animationGroups | " + animGroup.Name, 1);
BabylonAnimationGroup animationGroup = new BabylonAnimationGroup
{
name = animGroup.Name,
from = animGroup.FrameStart,
to = animGroup.FrameEnd,
keepNonAnimated = animGroup.KeepNonAnimated,
targetedAnimations = new List <BabylonTargetedAnimation>()
};
// add animations of each nodes contained in the animGroup
foreach (Guid guid in animGroup.NodeGuids)
{
IINode maxNode = Tools.GetINodeByGuid(guid);
// node could have been deleted, silently ignore it
if (maxNode == null)
{
continue;
}
if (exportParameters.exportAsSubmodel && !maxNode.Selected)
{
continue;
}
// Helpers can be exported as dummies and as bones
string nodeId = maxNode.GetGuid().ToString();
string boneId = isGltfExported?maxNode.GetGuid().ToString(): maxNode.GetGuid().ToString() + "-bone"; // the suffix "-bone" is added in babylon export format to assure the uniqueness of IDs
// Node
BabylonNode node = null;
babylonScene.NodeMap.TryGetValue(nodeId, out node);
if (node != null)
{
if (node.animations != null && node.animations.Length != 0)
{
IList <BabylonAnimation> animations = GetSubAnimations(node, animationGroup.from, animationGroup.to);
if (!animGroup.KeepStaticAnimation)
{
RemoveStaticAnimations(ref animations);
}
foreach (BabylonAnimation animation in animations)
{
BabylonTargetedAnimation targetedAnimation = new BabylonTargetedAnimation
{
animation = animation,
targetId = nodeId
};
animationGroup.targetedAnimations.Add(targetedAnimation);
}
}
}
// bone
BabylonBone bone = null;
int index = 0;
while (index < babylonScene.SkeletonsList.Count && bone == null)
{
BabylonSkeleton skel = babylonScene.SkeletonsList[index];
bone = skel.bones.FirstOrDefault(b => b.id == boneId);
index++;
}
if (bone != null)
{
if (bone.animation != null)
{
IList <BabylonAnimation> animations = GetSubAnimations(bone, animationGroup.from, animationGroup.to);
foreach (BabylonAnimation animation in animations)
{
BabylonTargetedAnimation targetedAnimation = new BabylonTargetedAnimation
{
animation = animation,
targetId = boneId
};
animationGroup.targetedAnimations.Add(targetedAnimation);
}
}
}
}
// add animations of each nodes contained in the animGroup
foreach (Guid guid in animGroup.MaterialGuids)
{
IMtl maxMtl = Tools.GetIMtlByGuid(guid);
// mat could have been deleted, silently ignore it
if (maxMtl == null)
{
continue;
}
string matId = maxMtl.GetGuid().ToString();
// Material
BabylonMaterial material = null;
material = babylonScene.MaterialsList.FirstOrDefault(x => x.id == matId);
if (material != null)
{
if (material.animations != null && material.animations.Length != 0)
{
IList <BabylonAnimation> animations = GetSubAnimations(material, animationGroup.from, animationGroup.to);
foreach (BabylonAnimation animation in animations)
{
BabylonTargetedAnimation targetedAnimation = new BabylonTargetedAnimation
{
animation = animation,
targetId = matId
};
animationGroup.targetedAnimations.Add(targetedAnimation);
}
}
}
}
if (animationGroup.targetedAnimations.Count > 0)
{
animationGroups.Add(animationGroup);
}
}
return(animationGroups);
}
