Proposition Studio is a browser app for architects and studios. Upload a 3D viewport screenshot, an untextured model, a massing study or a photo of an existing building and turn it into an architectural visualization in the same camera. Then direct the result: select the facade, the roof or the surroundings and change only that part, take materials from a reference board, try golden hour, dusk or winter. Every version stays in the project history, so you can go back to any of them and put versions side by side before one goes to the client. No plugins, no model export, no subscription. Credits come in one-time packs and a generation costs one credit. Built by an architect for the work between the first image and the approved variant. Access opens in stages at propositionstudio.com.