Thanks for the tutorial.  I've made the cork and it's pretty good match for my cork tiles in the kitchen.  I have a couple of questions as I'm still fumbling my way around understanding building materials from scratch.

For component A, you specified settings for the filters for both components 2 and 3 even though in your screenshot they are turned off.  I'm wondering if this explains some of the weirdness I've found when I try to tweak other presets...  does the filter still work on the final texture even when the components are turned off and not set to any sort of blend mode?

The basic component A looked pretty good already as cork to my eye so I'm not clear what the swirlwave and basic tile achieve.  I remember that the basic tile is only contributing the alpha to determine the mixture of swirlwave and cork?  But this alpha is looking fairly straight grey?

Anyway, I never miss a chance to study the DTE these days, I love the power it gives to make my Bryce scenes more unique so thanks for teaching me a little more.

Kathy