Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you have been placed in read-only mode.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
A
@valerostudio said:
It must be applied to a group.
meaning the gravel material has to a be grouped by itself so there is only one material in the group - more info here: http://sketchucation.com/forums/viewtopic.php?f=322%26amp;t=28593