Shaders are descriptions of surface materials or effects that control what a surface looks like. They are necessary for Hardware Shade as well as for Software Rendering.
You can manage shaders from Render
Multi-listerList All and from the Control Panel's Visualization mode.
The Multi-lister contains the settings for all shaders, the environment, and all lights in your scene.
Double-clicking any of the items in the Multi-lister opens the associated editor. From here, you can adjust the settings to achieve the material or effect you are looking for.
