How to understand the paste sop,thank you in advance!

RTFM. :-) eg. Click on the "?“ button in the top-right corner of the PASTE SOP's parameter pane. There is a good description of the paste sop in the help cards. Read this, and then perhaps post a more specific question. Enter the following ”hdox" URL in the Houdini Help Browser Pane:

hdox/houdini/content/helpcards/sop/paste.xml

The Paste op is a local refinement tool that doesn't increase the complexity of the base surface, yet allows detail to move freely on the base surface. A feature of the Paste op is

Also, there are several (5) PASTE SOP examples. Replace "hfs" (below) with the directory where you have Houdini installed.

file//hfs/mozilla/help/content/helpcards/sop/paste.xml?examples

regards,
ben.

thanks,that's a good way.