# V-ray materials disappear! Help! **URL:** \ **Category:** Extensions\ **Created:** [March 20, 2019, 3:55pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313 "2019-03-20T15:55:37Z")\ **Posts on this page:** 19\ **Page:** 1
**Author:** ![EM3Di](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/em3di/32/56650_2.png) [@EM3Di](https://forums.sketchup.com/u/EM3Di)\ **Post date:** [March 20, 2019, 3:55pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/1 "2019-03-20T15:55:37Z")
I’m working on a huge project with about 90 materials and I was working during a long time, adding new materials with the interactive render, and I notice my CPU usage was 95%, so I save the project and tried to make a final render. And when I tried to render nothing happens, so I close the project, wait for a little and reopen it. Then I tried to render again and it was no materials in the render then I also notice there were no materials on Vray material list too!!! - Since I can see the materials on SketchUp, can I add them to Vray material list? - If not, I have an autosave project with the latest materials used, can I export all of them at once to my recent project? **I’m using:** SketchUp Pro 2016 (version 16.1.1449 64bit) V-Ray 3.40.02 Windows 7 64Bit ---
**Author:** ![DaveR](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/daver/32/7601_2.png) [@DaveR](https://forums.sketchup.com/u/DaveR)\ **Post date:** [March 20, 2019, 3:56pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/2 "2019-03-20T15:56:34Z")
Can you show us a screen shot of your SketchUp model with Face Style set to Monochrome? ---
**Author:** ![DaveR](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/daver/32/7601_2.png) [@DaveR](https://forums.sketchup.com/u/DaveR)\ **Post date:** [March 20, 2019, 4:02pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/4 "2019-03-20T16:02:29Z")
That looks like Hidden Line, not Monochrome. ---
**Author:** ![EM3Di](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/em3di/32/56650_2.png) [@EM3Di](https://forums.sketchup.com/u/EM3Di)\ **Post date:** [March 20, 2019, 4:04pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/5 "2019-03-20T16:04:13Z")
How do I set to Monochrome? (Sorry for my ignorance) ---
**Author:** ![DaveR](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/daver/32/7601_2.png) [@DaveR](https://forums.sketchup.com/u/DaveR)\ **Post date:** [March 20, 2019, 4:11pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/6 "2019-03-20T16:11:38Z")
![Screenshot%20-%203_20_2019%20%2C%2011_11_29%20AM](https://global.discourse-cdn.com/sketchup/original/3X/5/7/570921c37e92dae34cfa8562c06f7aeb5576e104.png) ---
**Author:** ![EM3Di](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/em3di/32/56650_2.png) [@EM3Di](https://forums.sketchup.com/u/EM3Di)\ **Post date:** [March 20, 2019, 4:16pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/7 "2019-03-20T16:16:35Z")
That gonna gives me the same result before! Do you think this has anything to do with the fact that the materials disappear from the V-ray material list? ---
**Author:** ![DaveR](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/daver/32/7601_2.png) [@DaveR](https://forums.sketchup.com/u/DaveR)\ **Post date:** [March 20, 2019, 4:19pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/8 "2019-03-20T16:19:32Z")
I would expect to see shading on the faces in the model if you are showing it in Monochrome. Something like this: ![Screenshot%20-%203_20_2019%20%2C%2011_18_40%20AM](https://global.discourse-cdn.com/sketchup/original/3X/7/7/77e6e4a3b8336b0f238b05b03bbefbe5e624c19e.png) What I’m wondering is if you have back faces exposed. ---
**Author:** ![huskanovyc](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/huskanovyc/32/51738_2.png) [@huskanovyc](https://forums.sketchup.com/u/huskanovyc)\ **Post date:** [March 20, 2019, 4:58pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/9 "2019-03-20T16:58:40Z")
Check if you activated ‘‘Material Override’’ in vray settings. If it is activated, just deactivate it… ---
**Author:** ![EM3Di](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/em3di/32/56650_2.png) [@EM3Di](https://forums.sketchup.com/u/EM3Di)\ **Post date:** [March 20, 2019, 5:05pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/12 "2019-03-20T17:05:53Z")
> [@EM3Di](#): > > - Since I can see the materials on SketchUp, can I add them to Vray material list? > - **If not, I have an autosave project with the latest materials used, can I export all of them at once to my recent project?** Can someone answer these questions, please? ---
**Author:** ![eric-s](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/eric-s/32/55392_2.png) [@eric-s](https://forums.sketchup.com/u/eric-s)\ **Post date:** [March 20, 2019, 5:20pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/13 "2019-03-20T17:20:11Z")
Can you upload the SU model to file share like Dropbox and post link…or Private message if you prefer and I can take a closer look at it. ---
**Author:** ![EM3Di](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/em3di/32/56650_2.png) [@EM3Di](https://forums.sketchup.com/u/EM3Di)\ **Post date:** [March 20, 2019, 5:33pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/14 "2019-03-20T17:33:39Z")
Do not get me wrong but I do not feel comfortable giving you this project, this is a job for a company in which I am doing my first internship. At the same time there were too many materials in this project, because some models came from the 3D warehouse. I was already thinking about cleaning some materials. So I’m going to apply the materials one by one, so the project stays clean. Thanks everyone for the help! ---
**Author:** ![eric-s](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/eric-s/32/55392_2.png) [@eric-s](https://forums.sketchup.com/u/eric-s)\ **Post date:** [March 20, 2019, 5:52pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/15 "2019-03-20T17:52:41Z")
No offense taken. There’s just only so much we can do looking a screenshots 😉 ---
**Author:** ![GSTUDIOS](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/gstudios/32/74564_2.png) [@GSTUDIOS](https://forums.sketchup.com/u/GSTUDIOS)\ **Post date:** [March 20, 2019, 6:10pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/16 "2019-03-20T18:10:29Z")
If you can make a quick test model to reproduce the same problem, you could upload that to the forum. > [@EM3Di](#): > > Since I can see the materials on SketchUp, can I add them to Vray material list? The last version of VRAY I used imported all SU textures automatically. ---
**Author:** ![EM3Di](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/em3di/32/56650_2.png) [@EM3Di](https://forums.sketchup.com/u/EM3Di)\ **Post date:** [March 20, 2019, 10:08pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/17 "2019-03-20T22:08:57Z")
I found a solution! I go to SU Materials select “In the model”, and there they are! All of the materials! Then I go to V-ray Asset editor → Materials and nothing! No Materials! So I go again to SU Materials, select one material with the “eyedropper” paint bucket tool, and I edited the color, Then I go to V-ray Asset editor again, and there they are, all of the materials! I rendered and voilà!!! But then I save the project, close it, open again, and… ■■■■!!! No materials on V-ray asset editor! Why? ---
**Author:** ![GSTUDIOS](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/gstudios/32/74564_2.png) [@GSTUDIOS](https://forums.sketchup.com/u/GSTUDIOS)\ **Post date:** [March 20, 2019, 11:43pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/18 "2019-03-20T23:43:03Z")
Is your VRAY a licensed copy? Is it compatible with SketchUp pro 2016? ---
**Author:** ![EM3Di](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/em3di/32/56650_2.png) [@EM3Di](https://forums.sketchup.com/u/EM3Di)\ **Post date:** [March 21, 2019, 7:46pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/19 "2019-03-21T19:46:21Z")
Edited ---
**Author:** ![john\_drivenupthewall](https://avatars.discourse-cdn.com/v4/letter/j/c67d28/32.png) [@john\_drivenupthewall](https://forums.sketchup.com/u/john_drivenupthewall)\ **Post date:** [March 21, 2019, 8:15pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/20 "2019-03-21T20:15:49Z")
click the pencil and edit the post, highlight and delete any images… john ---
**Author:** ![ana.p](https://avatars.discourse-cdn.com/v4/letter/a/ce7236/32.png) [@ana.p](https://forums.sketchup.com/u/ana.p)\ **Post date:** [January 20, 2020, 2:05pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/21 "2020-01-20T14:05:58Z")
Thank you so much for sharing the solution! I was struggling with the same thing and I couldn’t find an answer anywhere… it is temporary solution like you said, but at least I can render my model now! ---
**Author:** ![mrdsarchi22](https://avatars.discourse-cdn.com/v4/letter/m/dbc845/32.png) [@mrdsarchi22](https://forums.sketchup.com/u/mrdsarchi22)\ **Post date:** [August 11, 2024, 4:26pm UTC](https://forums.sketchup.com/t/v-ray-materials-disappear-help/91313/22 "2024-08-11T16:26:31Z")
Thank You soo much.