use the original image as the locked base image replace only the fabric upholstery of the existing sofa using the fabric sample i provide this is a local material replacement only it is not a redesign not a re render not a scene regeneration and not a restyling of the room critical instruction everything outside the sofa upholstery area must remain pixel identical to the original image do not change anything else do not change image dimensions aspect ratio resolution camera angle viewpoint perspective framing composition lighting shadows color balance bed headboard walls ceiling carpet cabinetry desk chair coffee table small table decorative objects architectural details wood paneling trims any furniture position strict sofa preservation keep the sofa exactly the same same shape same size same proportions same position same silhouette same cushions same arms same backrest same seams same padding same visible edges do not change the sofa shape change the sofa geometry change the sofa size change the sofa proportions move the sofa remove the sofa add any new object add any furniture remove any object move any object change the small table in front of the sofa crop the image zoom in or out cut off any part of the image change the perspective pattern scale preservation keep the pattern size motif scale exactly as in the provided fabric sample do not enlarge the pattern do not reduce the pattern do not distort stretch compress or rescale the motif preserve the original proportion and scale of the fabric pattern so it looks natural and realistic on the sofa fabric application apply the new fabric only to the existing sofa upholstery surface the new fabric must follow the existing sofa geometry naturally have correct texture have correct scale have correct pattern size have correct pattern orientation have realistic shadows and highlights look photorealistic and natural blend correctly with the room lighting fail safe instruction if you cannot replace the sofa fabric without changing any other part of the image then leave the image unchanged final requirement the final image must be identical to the original image with the only visible change being the sofa fabric only replace the sofa fabric nothing else
