Dumb iRay Artifact Question

Penguinisto

I know this likely has to do with texture rez misinterpretation somewhere, but instead of blowing a zillion hours to trace the exact cause, I thought I'd ask first in case someone already knows...

On occasion, I see these pixellated oval artifacts pop up on the limbs. It really does not matter what skin I use (in this case, I've adapted an *ancient* skin from the Victoria 3(!) Momiji character, and before anyone says it, I've rendered it just fine in iRay w/o these artifacts before...)

Question, is there a setting I'm missing in iRay, or one that under certain conditions causes this? Default lighting, default Render settings (though in testing I did turn on denoiser just in case it might have been that, etc.)

 

thd777

Does the character or makeup use a geoshell? If yes, it is probaly the geoshell getting too close to the surface and you need to adjust the offset.

Ciao

TD

Penguinisto

No geoshell (yet), since that was among my first thoughts as well.

I did discover that yes, it is in the render settings somewhere, but no, I haven't found the specific setting yet. I pulled up and merged in a saved scene using its render settings that I remembered had worked real well overall, and the artifacts disappeared.

For the person who messaged asking about the character? It was something I'd whipped up shape-wise, but the skin itself is sadly no longer available (it's the "Kabuki" skin from the original "Momiji" character for Victoria 3 at Renderosity, for the morbidly curious...) I had to use an ancient (and also discontinued) texture conversion utility from Dark Whisper err, 3D Universe, to get it converted to the Victoria 4 UV Maps, and then further rinse the textures through Texture Transformer to get it up to Genesis 3, which fits just fine on Genesis 8. The pupils I just didn't bother with migrating, instead making a blank blue iRay glass-like shader to match the original character. I also wedged in the subsurface, normals and etc maps from another character I have... forgot which character offhand though for those bits of it... but I do like the more natural effect now (over the original Vicky 3 character). All in all, it was a fun bit of a challenge, and I now have something that is shaping up to be amazingly cute to boot.



 

mclaugh

Penguinisto said:

For the person who messaged asking about the character? It was something I'd whipped up shape-wise, but the skin itself is sadly no longer available (it's the "Kabuki" skin from the original "Momiji" character for Victoria 3 at Renderosity, for the morbidly curious...) I had to use an ancient (and also discontinued) texture conversion utility from Dark Whisper err, 3D Universe, to get it converted to the Victoria 4 UV Maps, and then further rinse the textures through Texture Transformer to get it up to Genesis 3, which fits just fine on Genesis 8. The pupils I just didn't bother with migrating, instead making a blank blue iRay glass-like shader to match the original character. I also wedged in the subsurface, normals and etc maps from another character I have... forgot which character offhand though for those bits of it... but I do like the more natural effect now (over the original Vicky 3 character). All in all, it was a fun bit of a challenge, and I now have something that is shaping up to be amazingly cute to boot.

Darn! You're right: she is cute. If you ever decide to sell her (with or without texture maps), I'll buy it!

Penguinisto

I appreciate it, but most of my toys are kitbashed from a whole lot of different products, so there'd be no way to segregate all of the intellectual properties involved :)