[PATCH] Water interferes with actor viewer rendering
The problem is various rendering code uses global variables to determine the simulation's water level (for e.g. culling) and that breaks in actor viewer. It's noticeable as a black space obstructing the view, when the camera moves above the map's water level. The patch fixes this by passing the correct simulation to the renderer before each frame.
As a bonus, I added a water toggle button to actor viewer, so ships can be viewed on a water plane and possibly for nice screenshots.
In 12715: