Point Light not acting correctly

Question

Hey guys I was just messing around with normal maps and lighting in Unity and I'm wondering why the point light is only lighting one half of the "sphere" its supposed to light. As you can see here, there are 3 point lights set up and its only lighting half of it. Why is this? and how do I fix it?

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Thank You

Answer 1

Best Answer

Answer by reyesr_ph · Sep 19, 2011 at 07:50 AM

FIXED ^_^ Okay so I was scrolling down th Inspector of the material itself and I noticed right below my normal map there was note that said "This texture is not marked as a normal map" and a button "FIX NOW",

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clicked on it and it was the point light was acting perfectly..

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Im sorry it might have just been me being stupid . Im new to Unity I didnt know you had to do this. Thank you all your effort!

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CHPedersen · Sep 19, 2011 at 07:59 AM 0

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Don't be sorry, this is a perfectly acceptable answer to a problem that showed itself as pretty odd behavior. :) Glad you got it fixed!

syclamoth · Sep 19, 2011 at 12:06 PM 0

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Yeah that makes sense! Good that you worked it out, and thanks for posting the answer for us!

b3agz · Oct 09, 2013 at 05:11 PM 0

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Hey, I can't upvote 'cos I'm too new, but I just wanted to add that I had this exact problem (only the mesh was terrain), and this fixed it. Thanks!

Answer 2

Answer by Clunk · Sep 19, 2011 at 06:19 AM

If it is an FBX file, make sure on the fbx importer that for tangents and normals, you select CALCULATE, not Import.

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reyesr_ph · Sep 19, 2011 at 06:50 AM 0

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what fbx importer are you talking about? I thought I would just need to go Assets>Import New Assets and then chose the fbx? if its the maya fbx exporter, I don't see any option for calculate. Can you please elaborate. Thank You =)

syclamoth · Sep 19, 2011 at 07:00 AM 0

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The fbx importer is the window that appears in the inspector when you select an asset in the project view. Unity uses it to determine exactly how it treats every new asset.

CHPedersen · Sep 19, 2011 at 07:16 AM 0

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It is likely not a setting in the FBX importer, if native Unity planes behave the same. I must say, I find this really odd, too. Don't have a solution, unfortunately. O_O If you manage to nail this one, please post the cause and solution. :)

Answer 3

Answer by unity_kZmfG-zuqsQ7vg · Mar 09, 2019 at 04:40 AM

I was having this issue recently with the ceiling of my scene. Checking the "Create from Grayscale" in normal map texture settings fixed the issue.

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Point Light not acting correctly

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