studio ↔ night
drag to move the light
The same room rendered twice — studio and night — with a soft circular mask following your finger. Nothing is being lit in real time; the lighting change was decided in Blender and the browser just wipes between two pictures. Drag anywhere on the render.
Any before/after a client cares about: day shift vs night shift, before automation vs after, empty warehouse vs full one, old branding vs new. Render the pair, ship two images, and the comparison becomes something they do rather than read.