Given how BrilliantImagery and some similar software have traditionally worked, every time exposure was ramped and/or a sequence was stabilized, the selected portion of every image in the sequence had to be rendered and this rendering process was where the majority of the processing time has been spent. The result was that even a small change to a single exposure, or a minor tweak to a crop made for a time consuming process. BrilliantImagery has since been changed so that the relevant, underlying, and processed raw data is saved so that, as long as you don't want to change the referenced area of each image, additional runs take minimal time.
Here's a basic tutorial on how to use the BrilliantImagery app along with Adobe Lightroom to edit a timelapse image sequence. In it, we'll go over the basic workflow as well as a few of the features.
Welcome to BrilliantImagery; software for enabling beautiful timelapse sequences! BrilliantImagery is designed to simplify and expedite the process of turning a series of DNG photos that are edited with Adobe Lightroom into a smooth, seamless, flowing sequence. In order to do this, it smoothly transitions the vast majority of slider based Lightroom edits (exposure, color temp, saturation, etc.) as well as adjusting image crops in order to take any shake out of unstable image series. Basically, you edit a few "key frames" and it figures out how all the others should be edited, and then does it!