C4D划痕污点着色器 Tools4D Grunge Shader v1.2 R13-R15 WIN64可以给材质添加划痕污点等，特别适合建筑通道着色器，支持R13-R15和Vray.

An easy to use Architectural Channel shader for adding dirt and grime to your structures.

官网：http://cinemaplugins.com/c4d-plugins/grunge-shader/