io_scene_fbx/export_fbx_bin.py

@@ -1981,12 +1981,6 @@ def fbx_data_animation_elements(root, scene_data):
     animations = scene_data.animations
     if not animations:
         return
-    scene = scene_data.scene
-
-    fps = scene.render.fps / scene.render.fps_base
-
-    def keys_to_ktimes(keys_array):
-        return (keys_array / fps * FBX_KTIME).astype(np.int64)
 
     # Animation stacks.
     for astack_key, alayers, alayer_key, name, f_start, f_end in animations:
@@ -2052,7 +2046,7 @@ def fbx_data_animation_elements(root, scene_data):
                         # And now, the *real* data!
                         elem_data_single_float64(acurve, b"Default", def_value)
                         elem_data_single_int32(acurve, b"KeyVer", FBX_ANIM_KEY_VERSION)
-                        elem_data_single_int64_array(acurve, b"KeyTime", keys_to_ktimes(keys))
+                        elem_data_single_int64_array(acurve, b"KeyTime", astype_view_signedness(keys, np.int64))
                         elem_data_single_float32_array(acurve, b"KeyValueFloat", values.astype(np.float32, copy=False))
                         elem_data_single_int32_array(acurve, b"KeyAttrFlags", keyattr_flags)
                         elem_data_single_float32_array(acurve, b"KeyAttrDataFloat", keyattr_datafloat)
@@ -2258,7 +2252,11 @@ def fbx_animations_do(scene_data, ref_id, f_start, f_end, start_zero, objects=No
     # `np.arange` excludes the `stop` argument like when using `range`, so we use np.nextafter to get the next
     # representable value after f_end and use that as the `stop` argument instead.
     currframes = np.arange(f_start, np.nextafter(f_end, np.inf), step=bake_step)
+
+    # Convert from Blender time to FBX time.
+    fps = scene.render.fps / scene.render.fps_base
     real_currframes = currframes - f_start if start_zero else currframes
+    real_currframes = (real_currframes / fps * FBX_KTIME).astype(np.int64)
 
     # Generator that yields the animated values of each frame in order.
     def frame_values_gen():