I built a cave with some fog and water. The water material is made of a glass shader and a transparent shader mixed together. But when I render it the fog made in the compositing creates a not transparent surface wirh the color of the fog on the water: https://i.imgur.com/QouEJIl.png Any fix for that?
1st- how are you mixing the glass and transparent? Normally you only use the transparent shader with glass to bypass shadow rays. Every other common mix is with a glossy and transparent (to bypass transmission rays).
2nd- what is your composite setup? What technic are you using to make fog?
For both, either post a sample scene, or screenshots of every settings.