preserve exactly the same architecture geometry ceiling grid structure materials and colors refine the green ceiling surface by adding a subtle acoustic ceiling texture the ceiling should appear as painted acoustic panels with a very fine micro perforated or lightly textured finish similar to acoustic plaster or acoustic panel paint the texture must be very subtle and soft only visible when light hits the surface avoiding a completely flat appearance important do not modify the ceiling grid design or structure keep the same green color do not add new elements rendering style high end architectural interior visualization with refined materials and subtle surface texture