# Blank space or White/black patches in sketchup vray rendering **URL:** \ **Category:** V-Ray for SketchUp\ **Tags:** sketchup, export, vray\ **Created:** [September 27, 2023, 2:30pm UTC](https://forums.sketchup.com/t/blank-space-or-white-black-patches-in-sketchup-vray-rendering/243005 "2023-09-27T14:30:41Z")\ **Posts on this page:** 1\ **Showing post:** 9
**Author:** ![mihai.s](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/mihai.s/32/202022_2.png) [@mihai.s](https://forums.sketchup.com/u/mihai.s)\ **Post date:** [September 28, 2023, 4:35am UTC](https://forums.sketchup.com/t/blank-space-or-white-black-patches-in-sketchup-vray-rendering/243005/9 "2023-09-28T04:35:39Z")
> [@tejalbalaram](#): > > My geometry is loose not in group Basics of SketchUp at [learn.sketchup.com](http://learn.sketchup.com) > [@tejalbalaram](#): > > Does it affect the rendering if the object is not in group? That’s why I asked. 😉 > [@Section cuts problems](https://forums.sketchup.com/t/section-cuts-problems/130363/18): > > Those artifacts that appear in rendering are probably related to multiple modeling errors: a multitude of hidden raw geometry reversed faces missing faces, overlapping surfaces incorrect use of groups and layers Normally all these modeling and working errors should be corrected and only then move to rendering. If you still want to continue with what you have at the moment, you could render and get rid of those artifacts … > [@Vray creating a Phantom face on section cut](https://forums.sketchup.com/t/vray-creating-a-phantom-face-on-section-cut/191807/2): > > Ghost faces usually appeared in renders for sections of models that had raw geometry, reversed faces, or missing faces in groups. Forum search [Search results for 'v-ray raw geometry' - SketchUp Community](https://forums.sketchup.com/search?expanded=true&q=v-ray%20raw%20geometry) --- _[View the full topic](https://forums.sketchup.com/t/blank-space-or-white-black-patches-in-sketchup-vray-rendering/243005)._