This is an atrium. I need to test some different materials on the curved stair in the back. I have added a green region, which is the only area to edit. Please change only that green area to be a white coating. Keep the rest of the image the same. , keep exact camera angle

PromptThis is an atrium. I need to test some different materials on the curved stair in the back. I have added a green region, which is the only area to edit. Please change only that green area to be a white coating. Keep the rest of the image the same. , keep exact camera angle

Date06 May 2026