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# Timeline Considerations and Restrictions

When creating a Visual Effects and Finishing timeline for use in Lustre, please note the following.

- Drop Frame and Non-Drop Frame: Lustre now supports a timeline with a mix of media that has drop frame and non-drop frame. Instead of using only the timeline frame code mode, it now also uses the source clips’ frame code mode.
- Soft Effects: All soft effects and transitions must be processed prior to importing the timeline into Lustre.
- Supported Timeline Elements: Colour sources, timeline gaps, dissolve transitions, and fade-ins and fade-outs are supported in Lustre.
- Dissolves: These are regenerated in Lustre, but only with linear animation. If a dissolve from a Visual Effects and Finishing application has a different type of curve, or keyframes, this data will not be read in Lustre. Previously, when you imported a timeline with dissolves from a Wiretap server, the dissolves were all shown as centre dissolves within Lustre. Now when a timeline is imported into Lustre, the dissolves are shown accordingly (i.e., from cut, centre, up to cut, or custom). This is only supported by Wiretap server 2010 and higher.
- Unsupported Transition Types: Wipe and Axis transitions are unsupported. These are presented as single shots in Lustre.
- Focus Point and Saving: In a Visual Effects and Finishing application timeline, the positioner's focus point indicates the layer of interest for edits and other operations. It also determines what appears when you import the timeline into Lustre. When saving the timeline for use in Lustre, ensure the focus point is on the top-most layer you want included in the Lustre timeline. For example, if the Visual Effects and Finishing timeline contains four layers and the focus point is on the third layer when it is saved, only three layers are included in the Lustre timeline.