笔刷克隆工具，将选择的物体进行笔刷绘制克隆，画到哪生成到哪。方便用来摆场景物体。the purpose of this script is to place objects by painting with mouse. like advanced painter, but advanced painter uses max's paint interface which is somewhat slow on complex models. my script paints objects over the active grid. after you place objects, you can put them down to ground, apply random transforms, apply random materials (all these things with other scripts). so you can quickly make landscapes.