Specular Lighting for Mobile
Mobile Specular response has been changed to use the GGX Lighting model by default. This improves Specular quality on mobile devices to help it better match Shader Model 5 (SM5). Enabling this feature adds a small cost to the shader processing time. The previous Spherical Gaussian Specular model is still accessible, should this new change affect the look and feel of your project's lighting. To re-enable the previous Spherical Gaussian Specular model, you will need to do the following:
- Go to Project Settings > Rendering > Mobile.
- Check the box next to Use legacy shading model.
The image comparison slider below shows the difference between the current Specular shading model and the Use Legacy Shading Model option.