soft8soft / pyosl

OSL to GLSL converter

OSL to GLSL converter

OSL to GLSL converter written in Python.

This library is an open-sourced component of Verge3D toolkit.

Usage

pyosl includes a command line utility called osl2glsl.py. The command

  python osl2glsl.py your_shader.osl

will print converted GLSL shader to stdout. Use the:

  python osl2glsl.py your_shader.osl > your_shader.glsl

command to write GLSL shader to the file named your_shader.glsl.

OSL standard library functions

Converter will try to use the built-in GLSL functions where possible. In all other cases it will rename OSL functions as follows:

• noise -> oslNoise
• transform -> oslTransform

It's up to you to write implementations of such oslNAME methods.

Support

Got questions/found bugs? Ask on the Verge3D Forums.

License

This tool is licensed under the terms of the MIT license.

pyosl's Issues

AttributeError: module 'ast' has no attribute 'NodeVisitor'

I've tried to convert an OSL into a GLSL and I've got this output error below. The osl file you can find it here.

 python osl2glsl.py flakes.osl > flakes.glsl
Traceback (most recent call last):
  File "C:\Users\Rinaldi\Sources\pyosl\osl2glsl.py", line 7, in <module>
    import pyosl.glslgen, pyosl.oslparse
  File "C:\Users\Rinaldi\Sources\pyosl\..\pyosl\glslgen.py", line 3, in <module>
    import binascii, collections, inspect, os, re, sys
  File "C:\Users\Rinaldi\AppData\Local\Programs\Python\Python312\Lib\inspect.py", line 1036, in <module>
    class _ClassFinder(ast.NodeVisitor):
                       ^^^^^^^^^^^^^^^
AttributeError: module 'ast' has no attribute 'NodeVisitor'

Thanks.