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jessestormer

XYZ World-Space Noise for a Texture

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So here's the over-arching goal: I am working on a burn effect reveal -- a roughened edge mask reveal across a surface. 

Plenty of examples out there of how to do this using an animated gradient, but -- difference being that all of the examples are created with a simple or flat object, but my object is rather complex and organic. -- which creates either lots of stretching or hard-lined edges with any kind of projection in UVW space. 

How can I reference XYZ space for noise? Is this possible? 

I'm just kind of blanking on how I can get a nice burn edge/reveal using world-space XYZ coordinates instead of UVW projection. 

 

Thanks in advance for any insight!

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