What causes cracks in the V4 mesh in the renderer?

Poser (Integrated Plugin developed by Paul Kinnane)

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RGUS
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Here's a quick screen grab to show you what I mean.
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cracks.jpg
WEB: http://rgus.deviantart.com/
GPU: NVIDIA GeForce RTX 3090 Ti
RAM: 64GB
CPU: 12th Gen Intel(R) Core(TM) i9-12900K 3.20 GHz
OPERATING SYSTEM: Windows 11 Pro
OCTANE PLUGIN VERSION: 2022.1..1.302 Prime
DAZ STUDIO VERSION: 4.21.0.5 Pro Edition (64 bit)
JeffGalloway
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I've seen this before also. No idea what causes it, but it is usually solved by slightly changing the pose and refreshing.
Erick
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I had this once or twice as well.
Could it have been related to using IK in Poser?
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face_off
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I've had this before, and my theory is that it happens when Poser internal geometry cache gets out of sync with it's OpenGL preview cache. Changing the animation frame number (from say 1 to 2) has always fixed it for me.

Paul
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Octane Plugin Support : Poser, ArchiCAD, Revit, Inventor, AutoCAD, Rhino, Modo, Nuke
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VividCinema
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I get this ALL the time, but only when rendering animations, I've tried changing several things like refreshing geometry to refreshing scene, to refreshing textures. I also tried using the morph tool to smooth out any jagged edges in geometry that might be causing it, as well as subdividing the mesh. I will try rendering via PMC to see if that plays any part, I think I remember reading that PMC works better for animations but takes a bit longer...
Another note to include is that I've noticed I can get at least the first frame to render fine, but after that the others have similar cracks...
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face_off
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Changing the figure's Skinning Method to Unimesh should fix this problem. See question 30 at http://render.otoy.com/manuals/Poser/?page_id=182.

Paul
Win7/Win10/Mavericks/Mint 17 - GTX550Ti/GT640M
Octane Plugin Support : Poser, ArchiCAD, Revit, Inventor, AutoCAD, Rhino, Modo, Nuke
Pls read before submitting a support question
VividCinema
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face_off wrote:Changing the figure's Skinning Method to Unimesh should fix this problem. See question 30 at http://render.otoy.com/manuals/Poser/?page_id=182.

Paul
I just tried that. Frame 4 of 150... So far so good! Thank you soooo much!!!
VividCinema
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VividCinema wrote:
face_off wrote:Changing the figure's Skinning Method to Unimesh should fix this problem. See question 30 at http://render.otoy.com/manuals/Poser/?page_id=182.

Paul
I just tried that. Frame 4 of 150... So far so good! Thank you soooo much!!!

One thing to add to this for other readers, it didn't work the first time. I had to go back to frame 1 and refresh Octane all-together before it started working. Thanks again Paul!
Cabled
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When I dealt with this just recently, what had happened was only one body part had a displacement channel filled, instead of a bump channel. This made one body part slightly larger than the other, and the "crack" was actually a shadow. Especially if you find the cracks mysteriously disappearing when you change lighting or viewing angles, it's something to double check.
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