A little "Ah ha!" moment...
Maybe everyone else already knows this, but I'll share my experience, just in case.
(I should make a video tutorial out of this, and a couple other things I've gotten better at.)
I was bothered by what appeared to be an inconsistent locking of the "Shader Type" (Classic/PBR) drop-down list.It would often be grayed-out, and I blamed it on a number of things, but could not duplicate it reliably for reporting in FeedBack Tracker.
> Was certain clothing? Nope.
> The "Clear/Keep" option that was at the root of a bug I found? Nope.
> Skin? Nope.
> Certain PBR Substances? Nope.
> What, and when, and why was this happening?
I finally figured it out. The "Shader Type" cannot be changed when the Appearance Editor is opened.
I guess that makes sense.
STEPS:1) Start with a default project, like "Base Female"
2) Select something, like the dress (
3) In the
MODIFY panel,
APPEARANCE tab, do NOT click the "Activate Appearance Editor" button yet. (Fig 1)
4) In the
MATERIAL tab, notice the Shader types "Classic/PBR" are available... leave in on Classic (Fig 2)
5) Back in the Appearance tab, apply a Substance to the dress... but you don't see the change yet... (Fig 3)
6) To see the substance you just added, you have to click the "Activate Appearance Editor"... click it now (use the "Keep" option) (Fig 4)
>>> That is why I would often activate the appearance editor - so I could see my newly added Substance
7) Go to the Material tab again... the Shader Type drop-down is grayed-out and non-selectable (Fig 5)
>>> I would wonder what's wrong... why can't I use the PBR shader on this Substance?
8) Return to the Appearance tab, and "Unload Appearance Editor" (Fig 6)
9) Go to the Material tab again... you can now change Shader Type from "Classic" to "PBR" (Fig 7 and Fig 8)
LESSON LEARNED - Version 1:a) Load PBR Substance in the Appearance tab
b) Immediately go to the Material tab and check the Shader Type (and change it if you plan to use the other shader)
c) Go back to the Appearance tab, and THEN finally Activate Appearance Editor to see your new material and begin working with it.
<<< OR >>>
LESSONE LEARNED - Version 2:a) Load PBR Substance in the Appearance tab
b) Immediately Activate and Unload the Apperance Editor to "activate" your newly loaded substance
c) Now you can go to the Material tab and change Shader Type (if you wish) and continue on with your material edits
Fig 1

Fig 2

Fig 3

Fig 4

Fig5

Fig 6

Fig 7

Fig 8
iClone 7... Character Creator... Substance Designer/Painter... Blender... Audacity...
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