Spectral Dragon AoA shader fails for wing membrane

am999

I know that this forum is not for bug reports, but my ticket #176876 seems not to be solvable. So, if anybody else wants to render DAZ's Spectral Dragon or Hellborn Dragon, I have this manual workaround:

The problem with these dragons is the AoA shader for the wing membranes. This shader is in its current state not suited for single sided surfaces, thus the bottom side of the wings will render black if only lit from the front (lower dragon on the image).

One solution is to add a light source that lights the wings from behind, though this increases render times and needs to be fine tuned for any image.

The other solution is to replace the shader for the wing mebrane (upper dragon on the image). Therefore open the Surfaces tab for the dragon and select Surfaces->WingMembrane or use the Surface Selection tool from the Tools menu and click somewhere on the wing membrane. Then open the Content Library->Shader Presets->omnifreaker->UberSurface folder and double-click !UberSurface Base. This should replace the AoA_Subsurface shader with the omUberSurface shader. Afterwards you need to fix some settings as not all parameters are correctly converted. For the wings in the image, I've set:

Bump Minimum: -1.0
Bump Maximum: 4.0
Velvet Active: On
Velvet Color: 176, 211, 156
Velvet Strength: 65.0%
Velvet Falloff: 85.0