diff --git a/LSLib/Granny/ColladaAnimation.cs b/LSLib/Granny/ColladaAnimation.cs
index 20e34ac4..09fd98dd 100644
--- a/LSLib/Granny/ColladaAnimation.cs
+++ b/LSLib/Granny/ColladaAnimation.cs
@@ -154,13 +154,17 @@ public bool ImportFromCollada(animation colladaAnim, Skeleton skeleton)
             return true;
         }
         
-        public TransformTrack MakeTrack()
+        public TransformTrack MakeTrack(bool removeTrivialKeys)
         {
             var keyframes = KeyframeTrack.FromMatrices(Times, Transforms);
-            keyframes.RemoveTrivialTranslations();
-            keyframes.RemoveTrivialRotations();
-            keyframes.RemoveTrivialScales();
-            keyframes.RemoveTrivialFrames();
+
+            if (removeTrivialKeys)
+            {
+                keyframes.RemoveTrivialTranslations();
+                keyframes.RemoveTrivialRotations();
+                keyframes.RemoveTrivialScales();
+                keyframes.RemoveTrivialFrames();
+            }
 
             var track = TransformTrack.FromKeyframes(keyframes);
             track.Flags = 0;
diff --git a/LSLib/Granny/Model/ColladaImporter.cs b/LSLib/Granny/Model/ColladaImporter.cs
index 3d987db7..83017b17 100644
--- a/LSLib/Granny/Model/ColladaImporter.cs
+++ b/LSLib/Granny/Model/ColladaImporter.cs
@@ -688,7 +688,7 @@ public void ImportAnimation(animation colladaAnim, Animation animation, TrackGro
                 if (importAnim.ImportFromCollada(colladaAnim, skeleton))
                 {
                     duration = Math.Max(duration, importAnim.Duration);
-                    var track = importAnim.MakeTrack();
+                    var track = importAnim.MakeTrack(Options.RemoveTrivialAnimationKeys);
                     trackGroup.TransformTracks.Add(track);
                 }
             }
diff --git a/LSLib/Granny/Model/Exporter.cs b/LSLib/Granny/Model/Exporter.cs
index a94ebe94..891a0a89 100644
--- a/LSLib/Granny/Model/Exporter.cs
+++ b/LSLib/Granny/Model/Exporter.cs
@@ -103,6 +103,9 @@ public class ExporterOptions
         // Apply Y-up transforms on skeletons?
         public bool TransformSkeletons = true;
         public bool IgnoreUVNaN = false;
+        // Remove animation keys that are a linear interpolation of the preceding and following keys
+        // Disabled by default, as D:OS doesn't support sparse knot values in anim curves.
+        public bool RemoveTrivialAnimationKeys = false;
 
         public List<string> DisabledAnimations = new List<string>();
         public List<string> DisabledModels = new List<string>();