Note from the images...

I have am using a cloud particle effect to create a swirling mist cloud at the bottom of a waterfall.

If I make the water surface semi-transparent, the water surface overlays the cloud particle effect when zoomed out.

110 = semi-transparent water zoomed out a little <not what I want obviously..
111 = semi-transparent water zoomed in
112 = non-transparent water any zoom.

Same thing with waterfalls....
Same zoom... Different view angle.

Hi Trevor,

this is a known problem. Transparent objects have to be sorted from back to front in order to render them, and the bigger the objects are, the more error-prone this technique is. Try to split your water surface into smaller pieces.

Kind regards,

Neo