Mobile [SOLVED] Huge normal map issues! (F1)

Hello!

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EDIT 2:
This is still happening in F1.
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EDIT:
This is still happening in B25.
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Case number: 810796

I am experiencing extraordinarily bad normal map quality on iOS.
In the Editor, everything is fine, but after running a build on an iOS device, I will get a very low-res normal map.
The "Default" settings of the normal map are set to 2048px, with none of the platform’s override settings activated.

Here are some screenshots:

Editor:


iOS:


iOS without normal map:


Greetings,
Shu

 

Also, here are screenshots from the attached sample project:

Editor:


iOS:

 

Just letting you know: The issue is still present in the first release candidate (5.4.0F1).

 

It doesn't look like its lower resolution, it looks like on the PC it's being scaled and on iOS it's not. Do you have a texture scaling factor on your material?

 

@bgolus
Well, it seems the tiling isn't the problem here (That's what you were talking about, right?):







I am using completely ordinary standard materials. It's really nothing fancy. How can this be a problem?

 

iOS (and mobile in general) use an optimized version of the standard shader. Even in its basic form it's actually too complex for mobile to render. One of those optimizations is to fresnel, on PC it's a dot product to the power of 5, and on iOS it's a dot product to the power of 4. That probably doesn't mean anything to you but the result is that increased brightness on iOS.

 

But this optimization has been there ever since the standard shader has been introduced, right?
Because I haven't had this issue before when using the standard shader on iOS.
Also, I don't think it's brighter per se on iOS. It's just more "chunky", less detailed and bumpier.
When you take a look at the screenshots, compare the areas that are further away from the camera.
There, I think it is very obvious that there is some wrong scaling / tiling / resolution going on when building for iOS.

 

Likely, but it could be a related optimization issue though, because Unity make changes to mobile shader optimizations every so often. Have to agree with bgolus on the issue of resolution, low resolution normal maps don't have very detailed bumps and they're artifact prone. On looking at the final screenshot I'm going to say it might be a lighting issue rather than normal map bug. Really weird.

 

This seems to be solved by just changing the quality settings.
I wasn't aware that you would have to change the green highlight in the quality settings to set a new quality for the current platform. (New behaviour since 5.3.x? Because I haven't had issues like that before.)

Here are some screenshots showing different quality settings:

Editor:


iOS simple:


iOS fantastic: