Y-Phil posted at 4:31 PM Wed, 12 April 2023 - #4461950

Two things:

- the blue makes me think to a second layer: this color is often the default PoserSurface's dîffuse color
- the fact that while moving around or zooming in/out makes me think that there's some Cycles-based material

This is a second layer with the Poser Surface root node.  It also happens in the Physical Surface root node, I later discovered, but the blue makes it dramatically obvious.

This is what the Support ticket response said:

"What you are seeing is known as a Z-depth artifact. It happens when the display isn't sure which layer of the figure is closer to the camera. Material layers are known to cause cause z-depth issues in preview. This is something the development team is working on.

Until this fix is released in an update you can usually reduce the appearance of this artifact by adjusting the Hither and Yon values on the camera you're using.

Hither and Yon are the near and far clipping planes for each camera. They limit the z-depth the camera renders. Try increasing the Hither and/or decreasing the yon. This creates a smaller z-depth and reduces z-depth artifacts."