I’ve never had this before, but when I render a scene with large amounts of hair particals, whether they are in the render or off screen, i get a black screen at the beginning of the render saying “preparing scene data” for several long seconds. When the image finally begins to draw it renders very quickly, it just takes blender several seconds to start rendering. But this only happens when I have lots of particals, and it doesn’t matter if the particals are in camera view, or not.
Is this normal? If so, how can I speed up partical rendering time, or this preparing scene data phase of the rendering process?