Checker
 
 
 

The Checker texture procedure applies a colored checkerboard pattern to the shader.

Argument Name Absolute Range Useful Range Default Description
contrast -1.0, 1.0 -1.0, 1.0 1.0 Contrast for the checker pattern
color1 (triple) 0, infinity 0.0, 255.0 0,0,0 Color of one set of checker squares.
color2 (triple) 0, infinity 0.0, 255.0 0.0 Color of other set of checker squares.
urepeat -infinity, infinity -10.0, 10.0 1.0 # of copies in u direction within coverage area.
vrepeat -infinity, infinity -10.0, 10.0 1.0 # of copies in v direction within coverage area.
uoffset -infinity, infinity -1.0, 1.0 0.0 U offset repeat within coverage area
voffset -infinity, infinity -1.0, 1.0 0.0 V offset repeat within coverage area
ucoverage -infinity, infinity 0.0, 1.0 1.0 amount of U surface to be textured
vcoverage -infinity, infinity 0.0, 1.0 1.0 amount of V surface to be textured
utranslate -infinity, infinity -1.0, 1.0 0.0 amount of U coverage area to be moved.
vtranslate -infinity, infinity -1.0, 1.0 0.0 amount of V coverage area to be moved.
uwrap TRUE FALSE   TRUE flag to wrap texture around U boundaries of coverage area.
vwrap TRUE FALSE   TRUE flag to wrap texture around U boundaries of coverage area.
worldspace TRUE FALSE   FALSE flag to use world space texture mapping
rotate -infinity, infinity -360.0, 360.0 0.0 angle coverage area to be rotated
mirror TRUE FALSE   FALSE flag to match edges of texture

“Checker” is a parametric texture.