Just by inspecting hip file in text editor I can tell you, the shader lives in /vex context (not /shop), and nodes you're asking about are from top to bottom: 3xRamp, Float2Vector, If subnet and Multiply Vops. This doesn't help much though, since you have subnet to recreate too, not to mention some parameters have their values you cannot see (though you could inspect them from a file like me).
I'm pretty sure some build of Houdini will open that scene, alternatively try some older build, like H10, but make sure first it's not already there in current build, because I hardly believe Houdini fails to at least load nodes (it could fail on compile).
Edited by SYmek, 01 April 2012 - 12:42 PM.












