Single sided surface in Vray?

Steve Davy

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Feb 10, 2016, 8:03:25 PM2/10/16

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And another Vray question:

Is there a way to get simple, single-sided behavior of a surface in Vray?

As simple as setting a surface to single sided and having the renderer only see it from one side? I know this was possible in Maya's renderer and so far as I recall in mental ray as well. But Vray seems to ignore "Single Sided" in the ordinary render stats.

All I want is a blocking piece of geo that renders with alpha when the camera is on one side of it, and is completely invisible in RGBA when the camera is on the other side of it.

Messed about with an object properties node thinking I could get it that way, but can't see any way to do it.

Serge Kovalenko

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Feb 10, 2016, 11:01:57 PM2/10/16

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There is a work around with the vray2Sided material.

Put your visible shader into Front.

Put another VrayMaterial into the Back, and turn it's Opacity Map to black.

Turn Translucency Tex, in 2Sided material, to black.

That should give you 1 sided render in RGBA.

s

---
Best regards,
Serge Kovalenko

www.vimeo.com/sergekovalenko
www.sergekovalenko.com

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Steve Davy

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Feb 11, 2016, 1:33:54 PM2/11/16

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Thanks! What a hassle for something that was previously just a single check box!

From: maya...@googlegroups.com <maya...@googlegroups.com> on behalf of Serge Kovalenko <serge...@gmail.com>
Sent: Wednesday, February 10, 2016 8:01 PM
To: maya...@googlegroups.com
Subject: Re: [maya_he3d] Single sided surface in Vray?

There is a work around with the vray2Sided material.

Put your visible shader into Front.

Put another VrayMaterial into the Back, and turn it's Opacity Map to black.

Turn Translucency Tex, in 2Sided material, to black.

That should give you 1 sided render in RGBA.

s

---
Best regards,
Serge Kovalenko

www.vimeo.com/sergekovalenko

Serge Kovalenko on Vimeo

www.vimeo.com

.

www.sergekovalenko.com

On Thu, Feb 11, 2016 at 12:03 PM, Steve Davy <stevi...@hotmail.com> wrote:

And another Vray question:

Is there a way to get simple, single-sided behavior of a surface in Vray?

As simple as setting a surface to single sided and having the renderer only see it from one side? I know this was possible in Maya's renderer and so far as I recall in mental ray as well. But Vray seems to ignore "Single Sided" in the ordinary render stats.

All I want is a blocking piece of geo that renders with alpha when the camera is on one side of it, and is completely invisible in RGBA when the camera is on the other side of it.

Messed about with an object properties node thinking I could get it that way, but can't see any way to do it.

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