private List <BabylonAnimation> GetAnimationsFrameByFrame(MFnTransform mFnTransform)
        {
            int start = Loader.GetMinTime();
            int end   = Loader.GetMaxTime();

            // Animations
            List <BabylonAnimation> animations = new List <BabylonAnimation>();

            string[] babylonAnimationProperties = new string[] { "scaling", "rotationQuaternion", "position", "visibility" };


            Dictionary <string, List <BabylonAnimationKey> > keysPerProperty = new Dictionary <string, List <BabylonAnimationKey> >();

            keysPerProperty.Add("scaling", new List <BabylonAnimationKey>());
            keysPerProperty.Add("rotationQuaternion", new List <BabylonAnimationKey>());
            keysPerProperty.Add("position", new List <BabylonAnimationKey>());
            keysPerProperty.Add("visibility", new List <BabylonAnimationKey>());

            // get keys
            for (int currentFrame = start; currentFrame <= end; currentFrame++)
            {
                // get transformation matrix at this frame
                MDoubleArray mDoubleMatrix = new MDoubleArray();
                MGlobal.executeCommand($"getAttr -t {currentFrame} {mFnTransform.fullPathName}.matrix", mDoubleMatrix);
                mDoubleMatrix.get(out float[] localMatrix);
                MMatrix matrix = new MMatrix(localMatrix);
                var     transformationMatrix = new MTransformationMatrix(matrix);

                // Retreive TRS vectors from matrix
                var position           = transformationMatrix.getTranslation();
                var rotationQuaternion = transformationMatrix.getRotationQuaternion();
                var scaling            = transformationMatrix.getScale();

                // Switch coordinate system at object level
                position[2]           *= -1;
                rotationQuaternion[0] *= -1;
                rotationQuaternion[1] *= -1;

                // create animation key for each property
                for (int indexAnimation = 0; indexAnimation < babylonAnimationProperties.Length; indexAnimation++)
                {
                    string babylonAnimationProperty = babylonAnimationProperties[indexAnimation];

                    BabylonAnimationKey key = new BabylonAnimationKey();
                    key.frame = currentFrame;
                    switch (indexAnimation)
                    {
                    case 0:     // scaling
                        key.values = scaling.ToArray();
                        break;

                    case 1:     // rotationQuaternion
                        key.values = rotationQuaternion.ToArray();
                        break;

                    case 2:     // position
                        key.values = position.ToArray();
                        break;

                    case 3:     // visibility
                        key.values = new float[] { Loader.GetVisibility(mFnTransform.fullPathName, currentFrame) };
                        break;
                    }

                    keysPerProperty[babylonAnimationProperty].Add(key);
                }
            }

            // create animation for each property
            for (int indexAnimation = 0; indexAnimation < babylonAnimationProperties.Length; indexAnimation++)
            {
                string babylonAnimationProperty = babylonAnimationProperties[indexAnimation];

                List <BabylonAnimationKey> keys = keysPerProperty[babylonAnimationProperty];

                var keysFull = new List <BabylonAnimationKey>(keys);

                // Optimization
                OptimizeAnimations(keys, true);

                // Ensure animation has at least 2 frames
                if (IsAnimationKeysRelevant(keys, babylonAnimationProperty))
                {
                    int dataType = 0;                               // "scaling", "rotationQuaternion", "position", "visibility"
                    if (indexAnimation == 0 || indexAnimation == 2) // scaling and position
                    {
                        dataType = (int)BabylonAnimation.DataType.Vector3;
                    }
                    else if (indexAnimation == 1)    // rotationQuaternion
                    {
                        dataType = (int)BabylonAnimation.DataType.Quaternion;
                    }
                    else   // visibility
                    {
                        dataType = (int)BabylonAnimation.DataType.Float;
                    }
                    // Create BabylonAnimation
                    animations.Add(new BabylonAnimation()
                    {
                        dataType       = dataType,
                        name           = babylonAnimationProperty + " animation",
                        framePerSecond = Loader.GetFPS(),
                        loopBehavior   = (int)BabylonAnimation.LoopBehavior.Cycle,
                        property       = babylonAnimationProperty,
                        keys           = keys.ToArray(),
                        keysFull       = keysFull
                    });
                }
            }
            return(animations);
        }
예제 #2
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        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 (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);
        }