Anyone attempted a Geode?

Started by WAS, March 24, 2018, 07:53:34 AM

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WAS

Has anyone attempted a geode rock? Had ideas going in my head. Wasn't sure how to get a hallow rock to fill with displacement literally but I was thinking you could fake it with masked in extreme negative displacement and filt the camera on the rock in such a way it looks hollow by hiding a whole side. Than you could mask in some soft, or jagged crystal formations. For a opal like geode, I was thinking you could duplicate your terrain (opal round billowy formations) and than offset it in the positive a few mm and add a glass shader to give it a translucency opal look while still being primarily opaque. May give it a go but wondering if anyone has any images of attempts or input?