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Question by gadavis · Jul 15, 2010 at 01:10 AM · iphoneshadows

cast/receive shadows on iphone- check box or uncheck box

i'm starting to optimize my iphone scene, and all my objects have the "cast shadows" and "receive shadows" checkbox checked. Since I am not using lights on my static geometry (the have lights baked in from maya, and my lights for my characters have 'no shadows' checked) do I need to worry about these boxes?

will these boxes turned on take up any processing?

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avatar image spinaljack · Jul 15, 2010 at 01:33 AM 0
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I'm pretty sure those options are only used for custom shaders

avatar image equalsequals · Jul 15, 2010 at 02:08 AM 0
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No they're used for the out-of-the-box shaders as well.

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Answer by equalsequals · Jul 15, 2010 at 02:16 AM

In short, no.

I'm assuming your lights cull only the characters (if not I'd do that since environment lighting is baked anyway), and since they cast no shadows there isn't a problem.

Logically, since lighting originates from the light itself, if they cast no shadows, the engine will never need to check whether or not the photons emitted will need to cast a shadow on an object.

Cheers,

==

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avatar image gadavis · Jul 15, 2010 at 08:58 PM 0
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Thanks, that is what i thought but wanted confirmation.

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Answer by Eric5h5 · Jul 15, 2010 at 03:07 AM

Unity iPhone doesn't do shadows, so the checkboxes have no effect.

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avatar image gadavis · Jul 15, 2010 at 08:58 PM 0
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Thanks, that clears everything up nicely.

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