Hi susej1981, no easy solution for that one (sorry for the bad pun). The problem isn't so much the liquid, you can get to that by taking a lot of time and doing a careful selection to remove all of the current contents of the bottle, then putting a bottle shape behind your image and creating your new liquid look there.
The real problem is the light refraction in the glass. Take a look at your photo above, notice the areas just inside the left and right edges, both in the filled and unfilled parts. The glass has a completely different look due to the change in refraction caused by the liquid in the bottle.
The basic path would be to use careful selections to remove the contents of the bottle, fix the edges of the glass using copy/paste techniques or whatever, then put in new liquid.
In any case a lot of work. The easy part is the surface tension of the water.
If this were a professional job I would re-shoot the bottle full. |
