---
title: "RenderMan LOP Parameters"
canonical: "https://rmanwiki-27.pixar.com/space/RFH27/544640499/RenderMan%20LOP%20Parameters"
format: markdown
---
![3dprinter_close.jpg](media://63f354e1-da8d-4aa7-8cb3-a96131209ac2)

Solaris provides various LOP nodes to create and edit USD primitives. 

On the following subset of LOP nodes in addition to the common USD parameters, you will find a “RenderMan” tab to be able to specify RenderMan specific attributes: 

Camera, Light, Render Var, Render Product, Render Settings, Render Geometry Settings.

![RenderMan_Solaris_LOPS1.jpg](media://fa34ce5b-c160-4d47-84c0-3f368d4fa277)

From Houdini 20.5.486, if those “RenderMan” tabs are missing or out-of-date, SideFx provides a way to rebuild them. 

You can select single or multiple nodes and click on 

*Initialize Parameters -> Rebuild Renderer-Specific Parameters*

![RenderMan_Solaris_LOPS2.jpg](media://4dda57ac-0d02-40b7-a182-37954051942b)

It is also possible to update your whole scene by clicking the Render option from the top menu 

*Render -> Rebuild All Renderer-Specific LOP parameters*

![RenderMan_Solaris_LOPS3.jpg](media://1af3d7f8-8013-428d-9e9d-034bf061fb63)