Is the specular shader broken on iOS?

Hi, when I create a test project that shows a simple sphere with a highlight, it looks very different on iOS. It seems that on iOS, the intensity of the directional light I use is ignored. When the intensity is set to 0, the editor and iOS look the same, but any intensity above that, the iOS version looks roughly the same (the diffuse colour changes), and the editor version changes correctly with light intensity. I think I recall this problem was not present in Unity 3.0

 

I have created some screenshots that show the problem: http://www.flickr.com/photos/55670043@N05/sets/72157626230214924/

 

you explicitely comment that its the windows editor, as such I don't see how its related to iOS as iOS is osx only.
also what graphics emulation is active in the editor?
Generally there is nothing that can fully emulate the look of the device as far as I'm aware not even Imagination Technologies PowerVR simulator does it to 100% (but its definitely the closest thing to "as on the device")

 

Hi Dreamora, the iMac editor shows exactly the same colours as the windows editor (when I switch graphics emulation modes on the iMac, nothing changes in the appearance of the sphere). The difference between iOS and iMac editor / Windows editor is quite big...

 

So you:
1. Switched the project to be an iOS one once you were on OSX
2. Switched the materials shader to a mobile one if possible
3. You then went to graphics simulation and enabled OpenGL ES 2.0 emulation?

if you don't use ES2.0 it will look seriously different as the specularity then is per vertex, no per pixel effect any longer. to handle that fine for both cases, ES 2.0 and ES 1.1 you would need to write shaders that fallback appropriately and that result in a corresponding look, given the current mobile ones don't fullfill your needs

 

Yes, I don't think there's a mobile 'specular', and yes. You're right that when you switch emulation to OpenGL ES 1.1, the specular is suddenly per vertex: you completely lose the per-pixel specular that uses the alpha channel of the texture as a gloss parameter. You can see in the screengrabs that on iOS (in this case an iPad), specular is still done per-pixel, and the gloss effect is also visible.