In my case, it is caused when Indigo RT sets a different aspect ratio for rendering in the active scene (for example, for a resolution of 1920x1080 or multiples of that) and when I apply these settings to the scene. In the viewport, the different aspect ratio is typically represented by vertical or horizontal gray bars. SketchUp 2017 (Make) does not cope with these settings of the render program during normal image export from the same scene and produces grey areas of different widths depending on the image resolution. Up to version SketchUp 2016 (Pro) this was no problem for me. I use version 2016 Pro for work and 2017 Make for hobby (Animation, because MSPhysics only runs with 64-bit SketchUp). Indigo RT (plugin "Skindigo") has in the menu "Skindigo Render Settings" a "Reset Camera" button, which also fixes this problem. "Advanced Camera Tools" are, I think, a pro feature.

Doesn't Vray render out numerous channels as passes? Shadows and Object ID pass for example?

@fhenaux said: Hi Juju, Is there a solution? Thanks the problem I had seems to have resolved itself without any action from my side

Are you using 32 or 64bit?

@unknownuser said: Double click your grouped geometry to edit it select each curve one at a time and right click and select entity info under segments you'll see 100 ,change that to 20 for example. Repeat fir each curve Many thanks. Fred

Radial dims are built in but for angular dimension see here http://forums.sketchucation.com/viewtopic.php?f=15&t=21730&st=0&sk=t&sd=d&hilit=angular+dimension&start=15

Thank you very much Tig. Great help.

Thanks to everyone, great help. Thank you very much.

Thank you for your help. Regards Fred

Hi, Thank you for that. It works great.....