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Linden Stirk avatar image
Linden Stirk asked ·

Unable to install custom procedural | Mandelbulb Tutorial

I'm using Maya 2020 and MtoA 4.0.0 / Arnold Core 6.0.0.0 and referencing the following tutorial:
https://docs.arnoldrenderer.com/display/A5AFMUG/How+to+Render+a+Mandelbulb
and these forum posts:
https://forums.autodesk.com/t5/maya-forum/arnold-procedural-mandelbulb-proc-dll/td-p/7108280
https://answers.arnoldrenderer.com/questions/21339/installing-mandelbulbdll.html

My problem is that I get the following error:
// Error: [ass] line 79: node "mandelbulb" is not installed //

I opened the Maya.env file and set the ARNOLD_PLUGIN_PATH equal to the absolute path of the folder containing the mandelbulb.ass, dll, dylib, mtd, and so files. I also created the python template file as described here: https://answers.arnoldrenderer.com/questions/21339/installing-mandelbulbdll.html and set the MAYA_CUSTOM_TEMPLATE_PATH in the Maya.env like this:

ARNOLD_PLUGIN_PATH = C:\solidangle\custom_procedurals\bin
MAYA_CUSTOM_TEMPLATE_PATH = C:\solidangle\custom_procedurals\ae

After creating a stand-in and loading the mandelbulb.ass file, I set the Render Settings > System > Search Paths > Plugin Search Path to: C:\solidangle\custom_procedurals\mandelbulb_proc.dll

All attempts and other variations of the above steps result in the same error. Any help would be greatly appreciated.

mtoaproceduralsinstall errorenvironmentpath
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Stephen Blair avatar image
Stephen Blair answered ·

Get an Arnold log with verbosity level Info.
If you set ARNOLD_PLUGIN_PATH correctly, you'll see this:

00:00:00  1450MB         | log started Mon Jan 11 07:13:25 2021
00:00:00  1450MB         | Arnold 6.1.0.0 [95d61e2c] windows clang-10.0.1 oiio-2.2.1 osl-1.11.6 vdb-4.0.0 clm-1.1.1.118 rlm-12.4.2 optix-6.6.0 2020/11/10 04:35:45
00:00:00  1450MB         | host application: MtoA 4.1.1 780b7bbf (master) Maya 2020
00:00:00  1450MB         | running on NOVMJ07M9WM, pid=45380
00:00:00  1450MB         |  2 x Intel(R) Xeon(R) Gold 5118 CPU @ 2.30GHz (24 cores, 48 logical) with 65154MB
00:00:00  1453MB         |  NVIDIA driver version 452.06 (Optix 60600)
00:00:00  1453MB         |  GPU 0: GeForce GTX 1080 Ti @ 1683MHz (compute 6.1) with 11264MB (4029MB available) (NVLink:0)
00:00:00  1453MB         |  GPU 1: Quadro P2000 @ 1480MHz (compute 6.1) with 5120MB (525MB available) (NVLink:0)
00:00:00  1453MB         |  
00:00:00  1453MB         |  soft limit for open files is set at 2048
00:00:00  1453MB         |  
00:00:00  1453MB         | loading plugins from C:/solidangle/mandelbulb_Arnold6 ...
00:00:00  1453MB         |  mandelbulb_proc.dll: mandelbulb uses Arnold 6.0.1.0

If you don't see anything about "loading plugins" for mandelbulb, then check that ARNOLD_PLUGIN_PATH is set.

In the Maya script editor, you can run system( "set ARNOLD" ) to check

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Linden Stirk avatar image
Linden Stirk answered ·

Thanks, Stephen. It was due to a non-compatible Arnold version. I was using 6.0.0.0, but this was compiled with 6.0.1.0. Updating Arnold fixed the issue. Thanks for the help.

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