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Lens flare mobile framerate drop
I've got a simple lens flare on a sun in my scene. When the lens flare is visible, I drop from 55fps to about 30fps. I've tried changing to simpler flares but it does not help. Currently using the standard asset sun flare.
Is this a bug, or just the way things are, or am I forgetting some important step?
It appears that the issue is with a significant increase in $$anonymous$$esh.submitVBO time whenever the lens flare appears. Using the remote profiler connected to a mobile device it's taking up over 30% of the time for drawing a frame. PerfHUD ES also gives a warning about vertex buffer updates being to high. On desktop I can see the same activity, but it causes no problem as there is rendering power to spare.
I'm not sure what the solution to this is. Is this a Unity bug? Just the way things are? Is there a way to fake lens flares more efficiently?
Did you increased the brightness of your lens flare? We had the same problem with an ultra bright (sun like) flare.
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