This material is a constant shader and is not affected by lighting. It is used to verify an object’s texture coordinates. The U coordinate or global s is in the red channel. The V coordinate or global t is in the green channel.
This parameter is used to set the blue channel. The default is 1, since it makes the results easier to see. However having the blue at 0, can make the s and t values easier to visualize.
Use Texture Map
Allows the use of a texture map, which may further help in the visualization of the s and t coordinates.
A texture map which will be composited over the UV colors. Defaults to grid.rat
Used to fade the texture map.