Welcome to the MetaSL Material Library section of the forum

[JanJordan]

Welcome to the MetaSL Material Library section of the forum!

The intention of this section is to provide a place for MetaSL material library users where they can share their experiences, ask questions, propose enhancements or just get in touch with other users or us.
Please make yourself comfortable!

The material library itself can be found at

http://materials.mentalimages.com

[Ostap]

Hi! I have a question about the compilation of "LLVM back-end" in 3.8:
How to switch the mode LLVM?
What is meant when the documentation is written - "To enable it the (_MI_REG_METASL_BACKEND) mental ray registry variable need to be set to the value" llvm ""?

When I run the test stage of the lesson "metasl_llvm_backend", this error: "shader" white "not found". But tape still wrote that - "Loading shader file. / white.msl"

[JanJordan]

Hi Ostap,
LLVM is now the default backend, while the quote from the documentation is correct, it is not needed anymore. mr registy variables can, for example, be set in a file called rayrc, setting compiler backend to llvm would mean adding the following line there:

registry "{_MI_REG_METASL_BACKEND}" value "LLVM" end registry

But i do not think that is your problem.What you run into is probably that mr is not able to find the .dll/.so needed for compilation. (gen_llvm.dll under windows)

To give you correct instructions, could you tell me which mr version exactly you are using, whether its standalone or inside a dcc and if its under windows or linux?

cu
Jan

ps. i hope you dont mind me deleting the doubled post.