Force export of FbxNodeAttribute for Light and Camera on export of animation so that Maya importer will point the animation the right way.

When animation importing into Maya only update animation don't add new nodes and don't import Cameras and Lights.

Author: inwoods

Assets/FbxExporters/Editor/FbxExporter.cs

@@ -2325,10 +2325,6 @@ public struct AnimationOnlyExportData {
                 // first clip to export
                 public AnimationClip defaultClip;
 
-                // TODO: find a better way to keep track of which components + properties we support
-                private static List<string> cameraProps = new List<string>{"field of view"};
-                private static List<string> lightProps = new List<string>{"m_Intensity", "m_SpotAngle", "m_Color.r", "m_Color.g", "m_Color.b"};
-
                 public AnimationOnlyExportData(
                     Dictionary<AnimationClip, GameObject> animClips,
                     HashSet<GameObject> exportSet,
@@ -2345,6 +2341,13 @@ public void ComputeObjectsInAnimationClips(
                     GameObject animationRootObject,
                     bool exportSkinnedMeshAnim = true
                 ){
+                    // Force export of FbxNodeAttribute for camera and light with animation  
+                    // so that they point the right way when imported into Maya.
+                    if (animationRootObject.GetComponent<Light>())
+                        this.exportComponent[animationRootObject] = typeof(Light);
+                    else if (animationRootObject.GetComponent<Camera>())
+                        this.exportComponent[animationRootObject] = typeof(Camera);
+                    
                     foreach (var animClip in animClips) {
                         if (this.animationClips.ContainsKey(animClip)) {
                             // we have already exported gameobjects for this clip
@@ -2368,11 +2371,10 @@ public void ComputeObjectsInAnimationClips(
                                 continue;
                             }
 
-                            if (lightProps.Contains (uniCurveBinding.propertyName)) {
-                                this.exportComponent.Add (unityGo, typeof(Light));
-                            } else if (cameraProps.Contains (uniCurveBinding.propertyName)) {
-                                this.exportComponent.Add (unityGo, typeof(Camera));
-                            }
+                            if (unityGo.GetComponent<Light>())
+                                this.exportComponent[unityGo] = typeof(Light);
+                            else if (unityGo.GetComponent<Camera>())
+                                this.exportComponent[unityGo] = typeof(Camera);
 
                             this.goExportSet.Add (unityGo);
                         }

Assets/Integrations/Autodesk/maya/scripts/unityCommands.mel

@@ -234,7 +234,16 @@ proc importFile(string $filePathStr){
         storeAttribute($unityExportSet, $UnityFbxFileNameAttr, "");
         storeAttribute($unityExportSet, $UnityFbxNamespaceAttr, "");
     }
-    
+    else
+    {
+        // Update animation only
+        FBXImportMode -v exmerge;
+
+        // Don’t change the static values on the cameras and lights
+        FBXImportCameras -v false;
+        FBXImportLights -v false;
+    }
+
     if(`namespaceInfo -cur -an` != $targetNamespace){
         namespace -set $targetNamespace;
     }