SSS Shader becomes solid black on specific body when playing animation -toggling on smooth mesh by subdivision removes the error
A couple issues that might be connected to the same problem.
1. It took a long while to discover what might be making the body and arm materials render black during animation playback. This issue is also present in iC8. Enabling smooth mesh be subdivision seems to correct the render but isn't a favorable solution.
2. My character still has extra materials for no explanation. If I add a texture to the CC4 created duplicate material "Head_03" and disable the opacity of the original head, you will see the head becomes invisible (there is no additional mesh).
The only thing I can think of as to why there are additional materials is that when I was creating the character from scratch was that when I was creating the body before the rigging process, I sent all the subtools of the body parts individually (head, body, arms, legs, eyes etc) and then labeled each of the meshes and materials in CC4 then merged them. Since CC4's weld option didn't seem to be available for my merged character parts I then exported the merged mesh as an FBX, then opened it with 3DCoat's PPP paint mode where it allowed me to weld the verts. The correct number of materials were showing in 3DCoat and I then exported it to akeytsu to be rigged.
After rigging in akeytsu and examining the ability and skin weight quality to do animations, I then exported it rigged to open in CC4.
When I imported it into CC4 there were suddenly duplicated materials that have no purpose and should not exist.
Later when I changed the original materials that did belong from PBR to SSS, all parts of the character's body except for the head rendered black when I pressed play.
It took a long time to discover a connection and it seems that smooth mesh by subdivision is somehow related because when enabled and I press play, the SSS shader renders correctly.
As for why only the head is not effected, the only thing that comes to mind is your cloth tracking system which allows cloth on the face like beards to conform to the shape of facial expressions is also somehow connected.
I discovered that the likely reason why the SSS shader is not working correctly is because after cleanup of the extra materials, I noticed my UVs were pretty much destroyed.. so now I have to dig up older files to copy and paste to rebuild them. When I can restore the UVs I will report back.
Ascensi
I've tested exporting a regular CC3 character then importing as HIK but the autodetection/conversion is exact to provide compatibility to CC3 characters. The Cayote character body works fine with SSS but is made of one mesh so that isn't a fair comparison. You would need another non CC character that has multimesh/materials as the body to test compatibility to see if the problem is system wide or only exclusive to my character somehow.
