# Vrayproxy subdivide at render time

**URL:** <https://forums.chaos.com/t/vrayproxy-subdivide-at-render-time/56944>\
**Category:** Requests\
**Created:** [January 28, 2016, 11:26am UTC](https://forums.chaos.com/t/vrayproxy-subdivide-at-render-time/56944 "2016-01-28T11:26:33Z")\
**Posts on this page:** 9\
**Page:** 1

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**Author:** ![Moriah](https://avatars.discourse-cdn.com/v4/letter/m/b2d939/32.png) [@Moriah](https://forums.chaos.com/u/Moriah)\
**Post date:** [January 28, 2016, 11:26am UTC](https://forums.chaos.com/t/vrayproxy-subdivide-at-render-time/56944/1 "2016-01-28T11:26:33Z")

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Is it possible to add an option to subdivide vrayproxy meshes at rendertime? Similar to turbosmooth.

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**Author:** ![vlado](https://avatars.discourse-cdn.com/v4/letter/v/779978/32.png) [@vlado](https://forums.chaos.com/u/vlado)\
**Post date:** [January 28, 2016, 12:22pm UTC](https://forums.chaos.com/t/vrayproxy-subdivide-at-render-time/56944/2 "2016-01-28T12:22:43Z")

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If you use Alembic files, there is an option to use OpenSubdiv at render time.

For .vrmesh files we don’t have such an option though; because the proxy is split into voxels, connectivity information between polygons is lost and it’s not possible to subdivide very well.

Alternatively, you can use the “Show full mesh” option of the proxy and apply regular TurboSmooth - not sure it will work quite well but you can try.

On the other hand, one of our developers is working on a LOD support where a single .vrmesh file can include multiple subdivision levels of an object (f.e. exported from Mudbox) and V-Ray will choose to load the correct LOD based distance from the camera.

Best regards,  
Vlado

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**Author:** ![Moriah](https://avatars.discourse-cdn.com/v4/letter/m/b2d939/32.png) [@Moriah](https://forums.chaos.com/u/Moriah)\
**Post date:** [January 28, 2016, 3:08pm UTC](https://forums.chaos.com/t/vrayproxy-subdivide-at-render-time/56944/3 "2016-01-28T15:08:18Z")

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I’m using alembic files from houdini. I suppose you’re talking about the “Subdivide all meshes” on the alembic mesh tab. I don’t see the option to activate at render time.

Also if i turn it on the first time, it smooths the mesh out, and if i deactivate and activate again it crashes max constantly.

Turbosmooth is working fine right now using the “Off in viewport” option.

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**Author:** ![vlado](https://avatars.discourse-cdn.com/v4/letter/v/779978/32.png) [@vlado](https://forums.chaos.com/u/vlado)\
**Post date:** [January 28, 2016, 3:46pm UTC](https://forums.chaos.com/t/vrayproxy-subdivide-at-render-time/56944/4 "2016-01-28T15:46:08Z")

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> [@Generate preview (Frame Buffer option), don't see any preview being generated ?](https://forums.chaos.com/t/generate-preview-frame-buffer-option-dont-see-any-preview-being-generated/49842/8):
>
> I’m using alembic files from houdini. I suppose you’re talking about the “Subdivide all meshes” on the alembic mesh tab. I don’t see the option to activate at render time.

Hm, it was supposed to work only at render time - are you saying it subdivides in the viewport too? If yes, we’ll need to fix it.

> Turbosmooth is working fine right now using the “Off in viewport” option.Well, at least something works 🙂

Best regards,  
Vlado

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**Author:** ![Moriah](https://avatars.discourse-cdn.com/v4/letter/m/b2d939/32.png) [@Moriah](https://forums.chaos.com/u/Moriah)\
**Post date:** [January 28, 2016, 3:56pm UTC](https://forums.chaos.com/t/vrayproxy-subdivide-at-render-time/56944/5 "2016-01-28T15:56:45Z")

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Yes it subdivides in the viewport and crashes constantly when on/off/on.

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**Author:** ![Moriah](https://avatars.discourse-cdn.com/v4/letter/m/b2d939/32.png) [@Moriah](https://forums.chaos.com/u/Moriah)\
**Post date:** [January 28, 2016, 4:12pm UTC](https://forums.chaos.com/t/vrayproxy-subdivide-at-render-time/56944/6 "2016-01-28T16:12:59Z")

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By the way, vraydirt isn’t working with vrayproxy… Standard Vraydirt renders black.

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**Author:** ![Moriah](https://avatars.discourse-cdn.com/v4/letter/m/b2d939/32.png) [@Moriah](https://forums.chaos.com/u/Moriah)\
**Post date:** [January 28, 2016, 5:46pm UTC](https://forums.chaos.com/t/vrayproxy-subdivide-at-render-time/56944/7 "2016-01-28T17:46:35Z")

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Annnnndddd Turbosmooth bugs out when network rendering, simply doesn’t render the proxy. “Subdivide meshes” for now works.

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**Author:** ![Art48](https://avatars.discourse-cdn.com/v4/letter/a/ad7895/32.png) [@Art48](https://forums.chaos.com/u/Art48)\
**Post date:** [January 28, 2016, 6:12pm UTC](https://forums.chaos.com/t/vrayproxy-subdivide-at-render-time/56944/8 "2016-01-28T18:12:19Z")

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> [@Vray proxy and displacement?](https://forums.chaos.com/t/vray-proxy-and-displacement/49837/2):
>
> By the way, vraydirt isn’t working with vrayproxy… Standard Vraydirt renders black.

o.O Rly? Needs fix ASAP.

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<div class="post-metadata">

**Author:** ![vlado](https://avatars.discourse-cdn.com/v4/letter/v/779978/32.png) [@vlado](https://forums.chaos.com/u/vlado)\
**Post date:** [January 28, 2016, 11:11pm UTC](https://forums.chaos.com/t/vrayproxy-subdivide-at-render-time/56944/9 "2016-01-28T23:11:07Z")

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> [@Vray proxy and displacement?](https://forums.chaos.com/t/vray-proxy-and-displacement/49837/2):
>
> By the way, vraydirt isn’t working with vrayproxy… Standard Vraydirt renders black.

Works fine for me on a simple test. If you have a scene where it doesn’t, best to post here or to [support@chaosgroup.com](mailto:support@chaosgroup.com)

Best regards,  
Vlado
