Do I need to bake the scene after every change made to the scene? July 06, 2020 09:43 Updated No. Baking should be done only after each re-import of the scene or after changes to the lighting setup. Related articles Do I need to unwrap my model and export lightmap UV coordinates to Shapespark? What is the scene size (polygons) limit? Bake (Lightmap baking) Does Shapespark require an external renderer, such as V-Ray, to bake lightmaps? How do I install the SketchUp extension for exporting models?