I am following a beginners tutorial of the famous Doughnut. I came up to the part where particle system is used for the placement of sprinkles on top of the icing and Weight Painting the area of the icing where sprinkles are desired to be. The issue that I have is that, the Weight Paint is applied on both sides of the faces. My guess is that, the icing is made of faces with the Solidify modifier applied.
My question is: How, if possible, can the Weight Paint be applied only on one side, the side I am painting on?
I know the bottom part won't be visible in this case but, I am just wondering in case I come across a scene where the bottom part (faces) are visible as well.