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PBL shaders have black specular highlight on iOS

8 years ago • updated by 7 years ago • 6

PBL shaders run fine in the editor, but when compiling to iOS (OpenGL ES 3.0) all shaders have a black specular highlight. All I have in this scene is a directional light.

In the scene below, you can see a bunch of PBL shaders rendering incorrectly (including the SF Parallax example with black artifacts), but the custom lighting shader renders fine.

Shader forge 1.27

Unity 5.4.0f3

OpenGL ES 3.0:

In Metal, the specular highlight isn't black - but it adds nothing.

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Any thoughts on this?

Repro case is straightforward. Create an empty scene in Unity 5.4.0f3 with a directional light.

Add a sphere with a PBL shaderforge shader. Export to iOS / OpenGL ES3.0.

Reproduces every time.

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I have the same issue on iPhone6 only. It works in iPhone5. Somebody has any clue about it?

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This is still an issue today. SF 1.36 Unity 5.6.1f1 on iOS 10.3

Would be nice to at least get a response from the devs on this issue.. It's been 10 months..

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Under review

I can prioritize this for the next update - apologies for the delay

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Meaning - the update after the one releasing today. Today's release has some priority fixes that need to go out as quickly as possible

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I have the same problem. Unity 5.6.1p1 Metal iOS 11, SF 1.37

Light Mode: PBL

Specular Mode: Metallic

Gloss Mode: Roughness

Changing roughness to about 0.076 makes it almost disappear. Below or above that it increases.

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