Dale, I’m working on Rhino4, so I did not try Rhino Polyhedra. However, I can repeat the problem with a simple script below. Before running the script, open a new file, detach the perspective viewport to float it, and on the material of the “default” layer, add an environment map (I used “chrome.jpg” from auxpecker package).
On my system, environment map disappears at frame 255 in saved images, while it remains present on viewport. Video card is ATI FirePro V4800, OpenGL version 4.2.12338
Once the environment map goes missing from saved images, cancelling the script and running it again, environment map is missing from the very first frame. One has to start with a new file to get it back.
The number 255 is a bit curious, but I don’t have time to experiment too much, still trying to finish the animation while dealing with this problem.
FrameNo = 0
Rhino.Command "_-ViewCaptureToFile " & Quote( "C:\TEMP\FRAME" & CStr(FrameNo) & ".PNG" ) & " Enter Enter" , False
FrameNo = FrameNo + 1
Rhino.Command "-ViewportProperties Size 600 600 Enter"
Rhino.Command "MeshSphere V 1000 R 1000 0,0,0 10"
For i=0 To 999
Rhino.RotateView , 1, 1