# (fixed)\[HOU-3733\]Vray standalone rendering in CPU when the scene is exported to render in GPU

**URL:** <https://forums.chaos.com/t/fixed-hou-3733-vray-standalone-rendering-in-cpu-when-the-scene-is-exported-to-render-in-gpu/114440>\
**Category:** Issues\
**Created:** [March 25, 2023, 10:09pm UTC](https://forums.chaos.com/t/fixed-hou-3733-vray-standalone-rendering-in-cpu-when-the-scene-is-exported-to-render-in-gpu/114440 "2023-03-25T22:09:59Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![gagui](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/gagui/32/33244_2.png) [@gagui](https://forums.chaos.com/u/gagui)\
**Post date:** [March 25, 2023, 10:09pm UTC](https://forums.chaos.com/t/fixed-hou-3733-vray-standalone-rendering-in-cpu-when-the-scene-is-exported-to-render-in-gpu/114440/1 "2023-03-25T22:09:59Z")

</div>

I want to render an exported scene in GPU mode to deadline but looking at the performance monitor in the slave computer I see that is rendering in CPU mode.

Is this a lready a known problem or maybe I`m doing something wrong?

---

<div class="post-metadata">

**Author:** ![tobiasroesli](https://avatars.discourse-cdn.com/v4/letter/t/3be4f8/32.png) [@tobiasroesli](https://forums.chaos.com/u/tobiasroesli)\
**Post date:** [March 25, 2023, 11:54pm UTC](https://forums.chaos.com/t/fixed-hou-3733-vray-standalone-rendering-in-cpu-when-the-scene-is-exported-to-render-in-gpu/114440/2 "2023-03-25T23:54:52Z")

</div>

Hey @gagui ,

I think the following will solve your problem:

> **[V-Ray Standalone](https://documentation.chaos.com/space/VNS)**

In your Deadline ROP Should be somewhere a Parameter called **“Command Line Args​”**  
In there you can put the Parameters from the Link above which are then executed by the renderer.

In your case it would be **“-rtEngine=​ 5”** for CUDA or **“-rtEngine=​7”** for RTX I guess.

Cheers!

---

<div class="post-metadata">

**Author:** ![chakarov](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/chakarov/32/29561_2.png) [@chakarov](https://forums.chaos.com/u/chakarov)\
**Post date:** [March 27, 2023, 10:46am UTC](https://forums.chaos.com/t/fixed-hou-3733-vray-standalone-rendering-in-cpu-when-the-scene-is-exported-to-render-in-gpu/114440/3 "2023-03-27T10:46:55Z")

</div>

Hi guys, looks like “Command Line Args” set in our vrayDeadline ROP are not provided to Deadline Job. I’ve reported that in our system. As workaround you could use native deadline rop, everything seems to work there.

---

<div class="post-metadata">

**Author:** ![tobiasroesli](https://avatars.discourse-cdn.com/v4/letter/t/3be4f8/32.png) [@tobiasroesli](https://forums.chaos.com/u/tobiasroesli)\
**Post date:** [March 27, 2023, 11:49am UTC](https://forums.chaos.com/t/fixed-hou-3733-vray-standalone-rendering-in-cpu-when-the-scene-is-exported-to-render-in-gpu/114440/4 "2023-03-27T11:49:53Z")

</div>

Hey @chakarov ,

thanks for the hint!

I always used the one from AWS because someone at Chaos wrote somewhere in the Forum that the submitter from Chaos is not working properly because AWS was not interested in a co-op to make a solid submitter together.  
And because of that I can quess Chaos has withdraw resources which are more useful somewhere else.

You can see the difference between both, a few features work better with one and other with the other. But none is perfect :). I can remember that for example the Chaos Submitter submits the “Frames per Task” correct but the AWS don’t. AWS submitter always just makes 1 frame per task. I have to say I don’t use Vray 6 so maybe some features are improved now.

---

<div class="post-metadata">

**Author:** ![chakarov](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/chakarov/32/29561_2.png) [@chakarov](https://forums.chaos.com/u/chakarov)\
**Post date:** [March 31, 2023, 9:39pm UTC](https://forums.chaos.com/t/fixed-hou-3733-vray-standalone-rendering-in-cpu-when-the-scene-is-exported-to-render-in-gpu/114440/5 "2023-03-31T21:39:33Z")

</div>

Hello again guys, the issue is fixed, even the render engine is now automatically get from ROP and provided to deadline, so no need of extra command line attributes to specify render engine.

---

<div class="post-metadata">

**Author:** ![gagui](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/gagui/32/33244_2.png) [@gagui](https://forums.chaos.com/u/gagui)\
**Post date:** [April 1, 2023, 1:16pm UTC](https://forums.chaos.com/t/fixed-hou-3733-vray-standalone-rendering-in-cpu-when-the-scene-is-exported-to-render-in-gpu/114440/6 "2023-04-01T13:16:35Z")

</div>

Great!! Thanks Chakarov.