# Vray rendering problems **URL:** \ **Category:** Extensions\ **Tags:** render, vray\ **Created:** [October 5, 2016, 7:39am UTC](https://forums.sketchup.com/t/vray-rendering-problems/31711 "2016-10-05T07:39:21Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![hight20](https://avatars.discourse-cdn.com/v4/letter/h/4491bb/32.png) [@hight20](https://forums.sketchup.com/u/hight20)\ **Post date:** [October 5, 2016, 7:39am UTC](https://forums.sketchup.com/t/vray-rendering-problems/31711/1 "2016-10-05T07:39:21Z")
Hello, i’m new in this forum. I’m trying to applying some materials using Vray and it’s not working well. I’m following these steps to apply materials, first i select a material from SU the import the desired material from vray but it turns grey and if i continue to render the applied material is deformed. Can somebody help me to solve this problem, is there something render settings or the followed steps are wrong. I just uploaded in pictures the steps that i’m following to apply material from Vray to the selected object. Step 01: I used the Paint Bucket tool in SU and apply a random material to the face i want to work on. It’s ok till now. ![](https://global.discourse-cdn.com/sketchup/original/3X/8/c/8cc9eaa623fd263fedd785e8d93b6882ca4f2330.png) Step 02: Then I clicked on Vray Material Editor and Load Material (vismat). ![](https://global.discourse-cdn.com/sketchup/original/3X/e/8/e82b161b55e5e5aac089f797073c6c33a43d5589.png) Step 03: Here is the Material (concrete). ![](https://global.discourse-cdn.com/sketchup/original/3X/1/c/1cc6b3b1203593f24049099f86bab9c35b8309b5.png) Step 04: Then apply material to the selected face (already has the UV from SU). ![](https://global.discourse-cdn.com/sketchup/original/3X/7/b/7b6143cf23d99aaefd8a6973de9b3743773644e8.png) Step 05: When I clicked “Apply Material to Selection” the selected face turned black and somtimes grey with no material at all. ![](https://global.discourse-cdn.com/sketchup/original/3X/9/5/95ee8a640e7c54712d8bde54556344c4d103cc08.png) Step 06: Here is it, I cannot see the applied material … ![](https://global.discourse-cdn.com/sketchup/original/3X/7/3/73e545216c74a6ed485585a3436dd4ac09551c85.png) Step 07: I continued to render the object, the material is totally deformed knowing that the object is a normal bloc with simple faces. ![](https://global.discourse-cdn.com/sketchup/original/3X/d/8/d88ba878feb52fbfea4f1a75ff3e566f56c4f86b.png) Any suggestions? Thank You, ---
**Author:** ![nbg90](https://avatars.discourse-cdn.com/v4/letter/n/e274bd/32.png) [@nbg90](https://forums.sketchup.com/u/nbg90)\ **Post date:** [November 27, 2016, 3:30pm UTC](https://forums.sketchup.com/t/vray-rendering-problems/31711/2 "2016-11-27T15:30:04Z")
hello @hight20, I am having the exact same problem. Materials going haywire, and can’t map them, because inside SKP window there is no material assigned, just gray. Did you find any answers? Thanks ---
**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:** [November 27, 2016, 3:32pm UTC](https://forums.sketchup.com/t/vray-rendering-problems/31711/3 "2016-11-27T15:32:07Z")
Have you asked on the Vray forum? It seems to me you’d get an answer more easily because you’d be asking an audience of vray users. ---
**Author:** ![hight20](https://avatars.discourse-cdn.com/v4/letter/h/4491bb/32.png) [@hight20](https://forums.sketchup.com/u/hight20)\ **Post date:** [November 28, 2016, 3:09pm UTC](https://forums.sketchup.com/t/vray-rendering-problems/31711/4 "2016-11-28T15:09:14Z")
Hello, No, i didn’t get an answer yet ☹ ---
**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:** [November 28, 2016, 3:38pm UTC](https://forums.sketchup.com/t/vray-rendering-problems/31711/5 "2016-11-28T15:38:47Z")
Maybe you should share the SKP file so others using Vray could see if they get the same results. ---
**Author:** ![josephkim626](https://sea2.discourse-cdn.com/sketchup/user_avatar/forums.sketchup.com/josephkim626/32/31239_2.png) [@josephkim626](https://forums.sketchup.com/u/josephkim626)\ **Post date:** [November 29, 2016, 3:45pm UTC](https://forums.sketchup.com/t/vray-rendering-problems/31711/6 "2016-11-29T15:45:53Z")
I don’t really use vismat files in my workflow, but don’t they also have some bitmap (jpg) files to work correctly? when you have bump and reflection, and etc value, i believe they need that. Also, what do you mean “totally deformed”? it seems that it is showing the right material, perhaps in different scale? \*Check if your face is oriented correctly. Using vismap on the back side of the face will result unexpected.