I have a scene that includes a small pool of water and a population of trees. The trees are not in the camera's view - they're on the far side of a hill. The trouble is that their reflections ARE visible in the water, even though the hill lies between the pool and the trees.
At one point during the rendering process these trees are visible in the rendering window, until they are occluded by the hill. The trees themselves are removed from the image by this occlusion, but not their reflections in the water.
I've attached 3 little images to illustrate. The first shows the pool and hill scene without the tree population. The reflection in the pool is correct.
The second shows the rendering window partway throught the rendering process, and shows the trees which are later occluded, along with their reflections in the pool.
The third shows a completed render with the tree population present. As described, you'll see the trees are now removed from view but the reflections remain in the water.
Is this known; is there a workaround?