Noise on sphere

@Regi wrote:

So I was thinking of playing around with some shaders and specifically purely educational purposes I'm hoping to achieve a look similar to JT Nimoy's work on Tron (the noise on sphere):

http://lh3.googleusercontent.com/oDcFlLk9nAcNSccIDGMLtxxft5VpDBxEMPneFgGjEjgW_WdgKr9ykroryFDcpLdmKHOqs3TCJrkEd60c1nfesA=s5000

http://lh3.googleusercontent.com/Hkd1SnbNmHFfz7H3ChKBymGi-p5nF2Nac_wAMjVPb8xByvN1aIj5lJQYEkxzuVmMVgYkexG8CLQyC-FxDCns=s5000

Any thoughts of what could be a good way to get into this are welcome! Should I start with a 2d noise exploration of a visual match and then switch to 3d or best to start with a few concentric spheres to begin with?

Thanks!

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