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 bool ExportMorphTargetWeightAnimation(BabylonMorphTargetManager babylonMorphTargetManager, GLTF gltf, GLTFNode gltfNode, List <GLTFChannel> channelList, List <GLTFAnimationSampler> samplerList) { if (!_isBabylonMorphTargetManagerAnimationValid(babylonMorphTargetManager)) { return(false); } RaiseMessage("GLTFExporter.Animation | Export animation of morph target manager with id: " + babylonMorphTargetManager.id, 2); var influencesPerFrame = _getTargetManagerAnimationsData(babylonMorphTargetManager); var frames = new List <int>(influencesPerFrame.Keys); frames.Sort(); // Mandatory otherwise gltf loader of babylon doesn't understand // Target var gltfTarget = new GLTFChannelTarget { node = gltfNode.index }; gltfTarget.path = "weights"; // 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 frame in frames) { var inputValue = frame / FPS_FACTOR; // Store values as bytes accessorInput.bytesList.AddRange(BitConverter.GetBytes(inputValue)); // Update min and max values GLTFBufferService.UpdateMinMaxAccessor(accessorInput, inputValue); } accessorInput.count = influencesPerFrame.Count; // --- Output --- GLTFAccessor accessorOutput = GLTFBufferService.Instance.CreateAccessor( gltf, GLTFBufferService.Instance.GetBufferViewAnimationFloatScalar(gltf, buffer), "accessorAnimationWeights", GLTFAccessor.ComponentType.FLOAT, GLTFAccessor.TypeEnum.SCALAR ); // Populate accessor foreach (var frame in frames) { var outputValues = influencesPerFrame[frame]; // Store values as bytes foreach (var outputValue in outputValues) { accessorOutput.count++; accessorOutput.bytesList.AddRange(BitConverter.GetBytes(outputValue)); } } // 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); return(true); }
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 bool ExportMorphTargetWeightAnimation(BabylonMorphTargetManager babylonMorphTargetManager, GLTF gltf, GLTFNode gltfNode, List <GLTFChannel> channelList, List <GLTFAnimationSampler> samplerList, int startFrame, int endFrame) { if (!_isBabylonMorphTargetManagerAnimationValid(babylonMorphTargetManager)) { return(false); } RaiseMessage("GLTFExporter.Animation | Export animation of morph target manager with id: " + babylonMorphTargetManager.id, 2); // Target var gltfTarget = new GLTFChannelTarget { node = gltfNode.index }; gltfTarget.path = "weights"; // 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 }; var influencesPerFrame = _getTargetManagerAnimationsData(babylonMorphTargetManager); var frames = new List <int>(influencesPerFrame.Keys); frames.Sort(); // Mandatory otherwise gltf loader of babylon doesn't understand int numKeys = 0; foreach (var frame in frames) { if (frame < startFrame) { continue; } if (frame > endFrame) { continue; } numKeys++; var inputValue = frame / (float)Loader.Global.FrameRate; // Store values as bytes accessorInput.bytesList.AddRange(BitConverter.GetBytes(inputValue)); // Update min and max values GLTFBufferService.UpdateMinMaxAccessor(accessorInput, inputValue); } accessorInput.count = numKeys; // bail out if we have no keys to export (?) // todo [KeyInterpolation]: bail out only when there are no keyframes at all (?) and otherwise add the appropriate (interpolated) keyframes if (numKeys == 0) { return(false); } // --- Output --- GLTFAccessor accessorOutput = GLTFBufferService.Instance.CreateAccessor( gltf, GLTFBufferService.Instance.GetBufferViewAnimationFloatScalar(gltf, buffer), "accessorAnimationWeights", GLTFAccessor.ComponentType.FLOAT, GLTFAccessor.TypeEnum.SCALAR ); // Populate accessor foreach (var frame in frames) { if (frame < startFrame) { continue; } if (frame > endFrame) { continue; } var outputValues = influencesPerFrame[frame]; // Store values as bytes foreach (var outputValue in outputValues) { accessorOutput.count++; accessorOutput.bytesList.AddRange(BitConverter.GetBytes(outputValue)); } } // 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); return(true); }
private bool ExportMorphTargetWeightAnimation(BabylonMorphTargetManager babylonMorphTargetManager, GLTF gltf, GLTFNode gltfNode, List <GLTFChannel> channelList, List <GLTFAnimationSampler> samplerList, int startFrame, int endFrame, BabylonScene babylonScene, bool offsetToStartAtFrameZero = true) { if (exportedMorphTargets.Contains(babylonMorphTargetManager) || !_isBabylonMorphTargetManagerAnimationValid(babylonMorphTargetManager)) { return(false); } var influencesPerFrame = _getTargetManagerAnimationsData(babylonMorphTargetManager); var frames = new List <float>(influencesPerFrame.Keys); var framesInRange = frames.Where(frame => frame >= startFrame && frame <= endFrame).ToList(); framesInRange.Sort(); // Mandatory to sort otherwise gltf loader of babylon doesn't understand if (framesInRange.Count() <= 0) { return(false); } logger.RaiseMessage("GLTFExporter.Animation | Export animation of morph target manager with id: " + babylonMorphTargetManager.id, 2); // Target var gltfTarget = new GLTFChannelTarget { node = gltfNode.index }; gltfTarget.path = "weights"; // 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 }; int numKeys = 0; foreach (var frame in framesInRange) { numKeys++; float inputValue = frame; if (offsetToStartAtFrameZero) { inputValue -= startFrame; } inputValue /= (float)babylonScene.TimelineFramesPerSecond; // Store values as bytes accessorInput.bytesList.AddRange(BitConverter.GetBytes(inputValue)); // Update min and max values GLTFBufferService.UpdateMinMaxAccessor(accessorInput, inputValue); } accessorInput.count = numKeys; if (accessorInput.count == 0) { logger.RaiseWarning(String.Format("GLTFExporter.Animation | No frames to export in morph target animation \"weight\" for mesh named \"{0}\". This will cause an error in the output gltf.", babylonMorphTargetManager.sourceMesh.name)); } // --- Output --- GLTFAccessor accessorOutput = GLTFBufferService.Instance.CreateAccessor( gltf, GLTFBufferService.Instance.GetBufferViewAnimationFloatScalar(gltf, buffer), "accessorAnimationWeights", GLTFAccessor.ComponentType.FLOAT, GLTFAccessor.TypeEnum.SCALAR ); // Populate accessor foreach (var frame in framesInRange) { var outputValues = influencesPerFrame[frame]; // Store values as bytes foreach (var outputValue in outputValues) { accessorOutput.count++; accessorOutput.bytesList.AddRange(BitConverter.GetBytes(outputValue)); } } // 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); // Mark this morph target as exported. exportedMorphTargets.Add(babylonMorphTargetManager); return(true); }
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 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 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 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 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 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; 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 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 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 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); } } }