# GUYS i need help! how to solve this ?

**URL:** <https://forums.chaos.com/t/guys-i-need-help-how-to-solve-this/88193>\
**Category:** Public\
**Created:** [April 17, 2018, 11:55am UTC](https://forums.chaos.com/t/guys-i-need-help-how-to-solve-this/88193 "2018-04-17T11:55:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![alex1234\_56789](https://avatars.discourse-cdn.com/v4/letter/a/e5b9ba/32.png) [@alex1234\_56789](https://forums.chaos.com/u/alex1234_56789)\
**Post date:** [April 17, 2018, 11:55am UTC](https://forums.chaos.com/t/guys-i-need-help-how-to-solve-this/88193/1 "2018-04-17T11:55:30Z")

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i was rendering my model, and this is what happened.  
i render it with CPU engine, the IES light is fine, it showed.  
but if i render it as GPU engine, the IES light is not working.  
but before the building light cache process, the IES still working.  
how to solve this? anyone can help? i am new here, help me please :(:(:(☹

 ![.jpg.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/3/a/3a1141b1368588709b858e908b81026d4411ab72.jpeg)  
 ![.jpg.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/e/a/ea5af82ceece06fafc2a29b802c38eec6eb8ebb6.jpeg)  
 ![.jpg.jpg](https://europe1.discourse-cdn.com/chaosprd/original/2X/f/fe850ea0f1a63ca05ae39960fb4fc0ecab9c05ee.jpeg)  
 ![.jpg.jpg](https://europe1.discourse-cdn.com/chaosprd/original/3X/a/9/a9e4262634d4f45a9abc4f7b986f53ce5993d91e.jpeg)  
 ![.jpg.jpg](https://europe1.discourse-cdn.com/chaosprd/original/2X/9/9fa7c1e1ff250d53d8dd141e13a7b37e7959a777.jpeg)

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**Author:** ![Peter.Chaushev](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/peter.chaushev/32/66949_2.png) [@Peter.Chaushev](https://forums.chaos.com/u/Peter.Chaushev)\
**Post date:** [April 17, 2018, 3:11pm UTC](https://forums.chaos.com/t/guys-i-need-help-how-to-solve-this/88193/2 "2018-04-17T15:11:03Z")

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Hello,  
Please advise what is the version of V-Ray for SketchUp used. Make sure to update to the latest v3.60.02.  
If the issue persists, please submit the scene for investigation by using Extensions \> V-Ray \> Pack Project and sending the archived file to [support@chaosgroup.com](mailto:support@chaosgroup.com) using a file-sharing service of your choice.  
Some additional info would also be appreciated:  
- GPU model and driver  
- Is Interactive render mode used  
- Does the issue occur with other .IES files

Kind regards,  
Peter