Retrieve Shader Keywords

I have a shader set up with keywords and am using the new custom material editor feature to toggle these keywords on/off on a per material basis. The problem I'm having is writing a script that will make an instance of the material and copy over the current material's active keywords. I thought I could access them by just reading in renderer.material.shaderKeywords but that always seems to be empty. Any ideas?

Thanks,

Justin

 

Nevermind. Silly me, I forgot to grab sharedMaterial.shaderKeywords :/