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Hello,

a beginner here.

I installed Renderman on katana but when i create the render setting node, it doesn't appear, i have only "dl" as option.

I know probably is related with some variables i have to create but i am not an expert...any help?

thanks

I can't seem to be able to build a shader (using pxrSurface or LamaEmission or anything) where overlapping particles' color are additive. I've read the standard boiler plate renderman docs on particles, which aren't explicit enough.

I would expect varying values of color ranging from 0.5 - 0.9 when overlapped with many other particles to achieve a color value greater than 1.0. I'm not getting it to work. yes, I can multiply the incoming displayColor using a pxrArithmetic and such, but I want additive.

I am using RenderMan for Maya and XGen for this particular project. I am doing a tube groom for this project (humanoid character)

I recently transferred an entire Maya project file to my new PC and corrected all of the XGen collection pathways in the XGen window and the .xgen files. The hair groom is showing up in the Maya viewport with the shaders attached, however when I try to render or IPR render the groom only the non-tube groom grooms (eyelashes, eyebrows, peach fuzz) are rendering. I’m not sure what could be causing this, any suggestions on what could help/fix this?

I have tried rebuilding the groom but it still won’t render.

Hi everyone, I am new on the Renderman/Houdini, and kindly ask for you help.

I have been trying to install Renderman at Houdini in the last week following this link:
Installation of RenderMan for Houdini - Houdini - RenderMan 26 (pixar.com)

or even this tutorial:
Houdini Renderman 23 Installation Tutorial (youtube.com)
but no results on it.

My "houdini ENV file" is currently:

%HOME%\Documents\houdini20.5.370\houdini.env

RMANTREE="C:\Program Files\Pixar\RenderManProServer-26.2"

RFHTREE="C:\Program Files\Pixar\RenderManForHoudini-26.2"

RMAN_PROCEDURALPATH=$RFHTREE\3.9\20.5.370\openvdb;&

HOUDINI_PATH=$RFHTREE\3.9\20.5.370;&

PATH=$RMANTREE\bin;&

but the only shelf I can see is the Renderman RIS

https://preview.redd.it/0go08rc3yzud1.png?width=187&format=png&auto=webp&s=77bc05f0e6da4451029105040e3a8880f43eb68c

Thank you for your help

https://preview.redd.it/oajhbuv0xptd1.png?width=1209&format=png&auto=webp&s=a82fa40b869dfa44930c120998223fbc394c86e4

I was trying to get bump from the bump texture, but the normals go all crazy when i try to. Anyone knows why?
would be really helpful thanks!

HIII

Am trying to install the latest Renderman ncr 26.2 on my maya 2025 v.2

But having 1 error 'MAYA_MODULE_PATH is undefined'
when i check the maya.env is empty . and if i check renderman_to_maya.py am too clueless if i have to modify or where to add a path.

Can someone guide me , is this a version incompatibility error? or what should i be modifying?

any help is will be a life saver

I try to make a paint strokes effect like in this video ( https://www.youtube.com/watch?v=cnVYrV5gFrU ). But bifrost is not rendering with renderman. I can't find a way to achieve the same effect.
Is there a way to make procedural primitives within renderman ?

Trying to render a simple .usd scene using prman. From looking into the documentation, it appears renderman can't directly render .usd files, and needs to translate a .usd file into .rib. To do this, hdPrman in USD is required, but is not supported in my ARM architecture (M1 Macbook). Is there some simple way to convert .usd to .rib in order to render as usual?

UPDATE: Managed to do a render using hdPrman with the usdrecord command emulating x86_64 with Rosetta.

https://preview.redd.it/6cox26k95tnd1.png?width=2280&format=png&auto=webp&s=87efb5ccc2a644ef4e1104c41a073cfcfc93f375

Hi!

I was trying to use a maya fluid container to create some fog, but it won't seem to render. It's interesting because it takes longer to render with the container enabled as opposed to when it's disabled, but I don't get visible results. I must be missing some settings or something. I'm using maya 2024.2 and renderman 26.1. I've added a link to the .ma file with a simple scene setup, so let me know if it doesn't work.

https://drive.google.com/file/d/1gzAIiIqkhlBIWutxOj7RtRLynXDSkwq8/view?usp=drive_link

Thanks!

I assume most of you worked with it. What’s the workflow like? For who you recommend use Renderman? I am a hobbyist and interested in XPU and denosier of this engine. If it’s important to mention, I use blender, pretty experienced at its render engine, cycles.

Also, are there resources I can find regarding it, aside from the website?

EDIT: Solved

Hey,

I'm currently animating a scene with 3 characters for a project for my studies. Strangely, the eyes of Luna, my main charakter, get bugged, render out of place and look like a cloud :(

Funny.... but- oh no.

Her eyes consist off two layers: the inner eyeball with the pupil and the white eyeball and an outer "glass- body" which is parented to it. The glass body is only a tiny little bit bigger.

The eyeball consists of a basic, very reflective material with primary and rough specular and the outer glass body is basically just a variation of the clear glass material from the basic renderman material library with a little bit of primary and rough specular.

No subsurface scattering or something. Everything is quite basic because I'm basically just an overmotivated noob.

No AOVs, just the basic beauty pass with denoise.

Everything is rigged with body and Facerig from the advanced sceleton- plugin.

The first two screenshots show how it looks and the last one shows how it's supposed to look like.

I feel this depends on the size of the scene. The "how it's supposed to look like- image" has been made with the same materials in basically the same scene, but with only one instead of three rigs present.

Thanks a lot in advance. If someone can help me solve this:

You are my hero! Luna will thank you aswell :)

https://preview.redd.it/iss07xae0kbd1.jpg?width=1600&format=pjpg&auto=webp&s=2a9ec7be1f2691254d75368d2078318336173e83

https://preview.redd.it/k8rqwpe9zjbd1.png?width=1920&format=png&auto=webp&s=b206eabfeaf3291e33bf776ac001efa2a13328d8

How it's supposed to look like:

https://preview.redd.it/iaztxlje1kbd1.png?width=1920&format=png&auto=webp&s=4a0775dc5aa935b36064fc42950f91d5e62d234a

i am experiencing a pretty weird bug

basically i made a material which works on material preview

but whenever i try to render (either rendered view or render image) it appears as if it were rendering the solid colors (aka viewport display colors)

can someone help me?

[SOLVED]: i figured out that renderman does NOT use blender materials, but instead it uses bxdf

Hi there, I made a Renderman account and am trying to download a binary for MacOS and Linux but it won’t let me login to the site. Am I doing something wrong?

EDIT: This is where I'm trying to login https://renderman.pixar.com/forum/member.php

I'm paying anyone who can create a transparent shader to simulate transparent and opaque renderman shaders.

I will attach an image showing the three shaders I want.

https://preview.redd.it/8z2rkvusmf6d1.png?width=1572&format=png&auto=webp&s=be63b330e2d417c37b8e84e08d2ce901b55ecae1

Warning: file: C:/Users/icedp/OneDrive/Documents/maya/2024/prefs/shelves/shelf_RenderMan_26_1.mel line 102: Pixmap file rm_IPR.png not found, using default.

Hello!! How can I modify the exposure on each camera in Renderman? “Shutter speed” and “Fstop” only affect the depth of field and motion blur, but do not modify the lighting. I need to have each camera with its own exposure settings. Typical in any engine like V-Ray, Corona…

Hi! I am using an educational license for Maya and have been using Renderman at school. I wanted to use it at home but am having trouble loading it in. Renderman says the download is successful and has been installed but I do not see it in my Plugin Manager 😔. Any ideas on how to fix that? Also I am using a Mac, I don’t know if that causes any issues.

When I try to render I get this No Qt platform plugin could be intialized