TexturePalette command displays textures panel. A mapping panel appears inside the textures panel when a texture is added. The mapping panel depends on texture type. One of the mapping panels, called 2-D Texture Mapping, has several radio buttons: Decal, View based, Environment map, Screen, WCS, WCS (box style), Mapping Channel. The buttons are shown in the following screenshot.
Rhino help file barely mentions the radio buttons, but does not explain how to use them. It seems that most of the radio buttons do not work. (Brian James is texture expert. Maybe he can find spare time to make video tutorial about material texture mapping?)