Renderman 23.2 and Ubuntu 19

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Been fighting for hours trying to figure out why the RM installer wont authenticate. If anyone can provide assistance, it would be greatly appreciated.

I get:
QSslSocket: cannot call unresolved function CRYPTO_num_locks

when I try to authenticate via the RM Installer.
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To anyone else that ever gets in this jam, just copy libcrypto.so.1.0.0 and libssl.so.1.0.0 to the /bin directory of the RenderManInstaller file and that fixes it.

Edit: So I got it to install, and configured in Houdini.env like it wants too, and the RM License App says my license is valid, but, I get a stupid error when I try to render in Houdini:
Rfh: Could not initialize RenderMan
. Ugh! This is so freakin difficult on Linux.
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Edit: So I got it to install, and configured in Houdini.env like it wants too, and the RM License App says my license is valid, but, I get a stupid error when I try to render in Houdini:
Rfh: Could not initialize RenderMan
. Ugh! This is so freakin difficult on Linux.

Hey Daryl,
i am in the same boat.I managed to install renderman ncr on Xubuntu after many tries.I had to compile the libssl cause even copying the files didn`t work.Now what about the error inside houdini.It seems to be set up correctly.All menus are there but i get this error.Searched the net and could not find any awnswers or any hint where t solve it.
So did you solve it?
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Nope, I asked in every Social Corner I could - no one knew how to get it to work.
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Daryl Dunlap
Nope, I asked in every Social Corner I could - no one knew how to get it to work.

it was solved in some social corners like discord.
For me it was enough to make a symbolic link
sudo locate libcrypto.so.1.0.0
sudo locate libssl.so.1.0.0
sudo ln -s /opt/hfs17.5/dsolib/libcrypto.so.1.0.0 /opt/pixar/RenderMan-Installer-ncr-22.6/lib/3rdparty/Qt-5.6.1/lib/libcrypto.so
sudo ln -s /opt/hfs17.5/dsolib/libssl.so.1.0.0 /opt/pixar/RenderMan-Installer-ncr-22.6/lib/3rdparty/Qt-5.6.1/lib/libssl.so
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Correct me if I'm wrong, but, it looks like that will fix the install, which we've both also already completed.

What's still outstanding, is actually rendering from Houdini on Ubuntu.
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So is there at least any person using another distro that had success or rendering in linux is not achievable?at least at the current state of renderman.
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Did anyone find a way to resolve this problem?

Seeing it with H 18.0.532 / Renderman 23.4
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Okay, I think I solved this. The ‘could not initialize’ error is indicative of missing libtinfo5 libraries, which you only find out about if you try to run a supporting app like txmake from the terminal.

Here are the steps I followed to get RenderMan 23.4 running in Houdini 18.0.532 on Pop_OS/Linux:


1) Download and install the Renderman installer rpm. It will be named something sexy like RenderMan-InstallerNCR-23.4.0_2090532-linuxRHEL7_gcc63icc190.x86_64.rpm

2) Installing the rpm file should get you an /opt/pixar/Renderman-Installer-ncr-XX.X directory

3) Before the next steps, you'll need to make sure you have the libraries libssl.so.1.0.0 and libcrypto.so.1.0.0 in your /usr/lib/x86_64-linux-gnu directory. I think any 1.0.x flavor of these will work (like libssl.so.1.0.2)

4) You need to create two symbolic links in the Renderman-Installer subdirectories to point the installer to those libraries:

ln -s /usr/lib/x86_64-linux-gnu/libssl.so.1.0.0 /opt/pixar/RenderMan-Installer-ncr-23.4/lib/3rdparty/Qt-5.6.1/lib/libssl.so
ln -s /usr/lib/x86_64-linux-gnu/libcrypto.so.1.0.0 /opt/pixar/RenderMan-Installer-ncr-23.4/lib/3rdparty/Qt-5.6.1/lib/libcrypto.so

Replace the library and Renderman versions with the ones you have/are installing

5) For Pop_OS (and probably other Ubuntu-flavors), I found that you will also need to manually install the shared libtinfo.so.5 libraries:

sudo apt-get install libtinfo5

6) That should do it. Jump into the /opt/pixar/RenderMan-Installer-ncr-23.4/bin and get your RenderMan Installer on


Hope this helps!


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Hi everyone anyone got lucky yet?
i posted this on answerhub of renderman: https://renderman.pixar.com/answers/questions/19736/houdini-error-couldnt-find-valid-rman-in-distribut.html [renderman.pixar.com]

after spending almost eternity i got it to work on ubuntu now it won't render

here is a copypaste of the thread above:
​Hi everyone,

Just installed prman-ncr 23.4 on ubuntu 20.04 for houdini 18.0.532
i have three issues:
1. when I fire up the “it”, I get this error:

Couldn't find valid rman in distribution root
2. when i fire up the IPR, i get this error:
RfH: Could not initialize Renderman

3. Inside Solaris:
I see renderman listed in the hydra delegate list, however once i “select” it, viewport reverts to houdini openGL and renderman disappears from the dropdown


my .env file loks like this:

RMANTREE=/opt/pixar/RenderManProServer-23.4
​RFHTREE=/opt/pixar/RenderManForHoudini-23.4
RMAN_PROCEDURALPATH=$RFHTREE/18.0.532/openvdb:&
HOUDINI_PATH=$RFHTREE/18.0.532:&
PATH=$RMANTREE/bin:&
HOUDINI_DEFAULT_RIB_RENDERER=prman23.4
(i got the first 4 lines from here: https://rmanwiki.pixar.com/display/RFH23/Installation+of+RenderMan+for+Houdini)
(and borrowed the last 2 from here: https://www.youtube.com/watch?v=-SFiLA2Pqz4&feature=youtu.be&t=829&ab_channel=Houdini)


PLUS i also get this error while trying to launch the “renderman preset browser”
There is an error in the RenderMan Preset Browser script.

Traceback (most recent call last):
File “”, line 2, in
File “/opt/pixar/RenderManForHoudini-23.4/18.0.532/python2.7libs/rfh/preset_browser_houdini.py”, line 38, in
from prman import Version as prman_version
File “/opt/pixar/RenderManProServer-23.4/bin/prman.py”, line 45, in
class __private: # simple means to keep locals private
File “/opt/pixar/RenderManProServer-23.4/bin/prman.py”, line 70, in __private
libprman = ctypes.CDLL(file, ctypes.RTLD_GLOBAL)
File “/opt/houdini/hfs18.0.532/python/lib/python2.7/ctypes/__init__.py”, line 366, in __init__
self._handle = _dlopen(self._name, mode)
OSError: libtinfo.so.5: cannot open shared object file: No such file or directory

PS: i am trying out other renderers as well: namely redshift and Octane
PS: people have noted this here as well:
https://www.sidefx.com/forum/topic/72844/?page=1#post-311806 [www.sidefx.com]



thanks a lot for your time, i hope someone knows the solution
Edited by demoan666 - Oct. 28, 2020 09:03:05
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For anyone else coming across this thread, the "RfH: Could not initialize Renderman" error when IPRing is due to conflicting PRMan and Houdini versions. The libtinfo5 dependency was satisfied but I was still getting this error. I was trying to render in Houdini 18.5.408 with PRMan for an older Houdini 18.5.351. Installing 18.5.351 for use with PRMan got everything working as expected.
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Necropost cause I was fighting with the mentioned error

"RfH: Could not initialize Renderman"
along with
"Failed to save output to file"

Thank you to @master2045 on Renderman discord for the pointer about the missing library libtinfo5, which is fixed in Fedora by installing the ncurses-compat-libspackage.

I never had this issue before in Pop!_OS, but to fix it there just search the library libtinfo5in the Synaptic Package Manager.


Only I've seen this mentioned around the web, was here [www.carlocarfora.co.uk]
Edited by probiner - Aug. 24, 2021 22:02:03
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