hi every body, my qeustion is : why the drop in performance and frame rate occure when uv texture a plane in game engine?? ,
when I render the game (press P for embedded player or start a stand alone player) , while I make my plane textured with UV unwrap , the performance is so low and there is a drop in frame rate and high in rasterizer usage as explained in next picture
when I remove the uv unwrap of the plane, and make the plane without texture (by remove the picture which in uv/image editor while I am in Edit mode(press X) and then return to object mode , or while i select the plane and go to properties-> object data -> uv maps -> press (-)(remove uvmap) ) , i notice a high gain in performance and frame per second and low in rasterizer as showen in next picture
I also notice that when the camera look away from that uv textured plane , the rasterizer usage return low and the performance and frame rate return high (the drop in performance gone!) ,althought the plane is still uv textured
the question is why this break down in performance and frame rate happend??? and how if possiple we can avoid this ???
here is the blender file
uv texture in render game problem.blend (391 KB)