Modifying our shaders for mobile

Now that we have seen quite a broad set of techniques for making really optimized shaders, let's take a look at writing a nice, high-quality shader targeted for a mobile device. It is actually quite easy to make a few adjustments to the shaders we have written so that they run faster on a mobile device. This includes elements such as using the approxview or halfasview Lighting function variables. We can also reduce the amount of textures we need and even apply better compression for the textures we are using. By the end of this recipe, we will have a nicely optimized normal-mapped, Specular Shader for use in our mobile games.

Getting ready

Before we begin, let's get a fresh new scene...