Tile grout color and thickness. Simulates grout for ceramic and natural stone tiles.
Grout color (gray or RGB).
Grout thickness; scene coordinate units (typically inches) (real).
For maximum control of the grout appearance, the following requirements apply:
* Must be an RGB color value.
* must be a real value 0 or larger.
Ignored if repeat = 4, 5, 7, 8, 9, 14, or higher, or when specified for materials other than repeatable textures.
grout= is not specified, the grout in the image is not modified. If
* is specified,
* defaults to