---
title: "RenderMan LOP Parameters"
canonical: "https://rmanwiki-26.pixar.com/space/RFH26/389611630/RenderMan%20LOP%20Parameters"
format: markdown
---
![3dprinter_close.jpg](media://e85f3b6f-6a6c-45a5-8ce0-26d4b20faa0a)

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://3e86b266-4cfa-4fef-8c19-7b1d82106fb3)

From Houdini 20.5.486, if those “RenderMan” tabs are missing or out-of-date, SideFx provides a way to rebuild them.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://3b6a81a6-e0e6-43dd-b4e2-6da6fe906285)

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://64b82a7a-0bd9-4b49-b43f-05ff21a6114c)