Can the iPhone render specular hilights?

Target Platforms Mobile
1

Hi,

Has anyone seen Unity’s specular shaders work on the iPhone? We have objects that make use of specular shaders in Unity iPhone, but when the project runs on the device the hilights disappear, which makes a disappointing difference to the look of the scene.

I was surprised to see this fail on the phone, as it’s not a problem I have heard of before. Can anyone suggest what we might be doing wrong?

Thanks.

2

You’re not doing anything wrong. The resident shader guru around here (Jessy) has an excellent explanation here. I also recommend watching his youtube video series on the topic as well.

http://answers.unity3d.com/questions/4096/unity-iphone-difference-between-shader-and-iphone-shader

Of interest here is the Graphics emulation setting you are using in the Unity Editor. Do you set it to a given iPhone hardware target? I generally leave mine on the 3G MBXlite setting…

3

Thanks for the link. My graphics emulation was set to iPhone(MBXlite), but after trying the other two options, for iPhone 3Gs OpenGLES1.1, the editor still displays the specular hilights.

Now I know this element definetely doesn’t work on the iPhone, we can work around it by either altering shaders or baking the textures in 3ds Max.