image sequence doesnt render with vray

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Kris Rivel

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Jan 28, 2014, 1:12:14 PM1/28/14
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Anyone know why an image sequence used as a texture doesn't seem to render with vray?  It just seems locked to one frame.  But ironically...a render region seems to work.  Its like it just grabs whatever frame the scene is at, then renders that frame of the image sequence but the buffer isn't clear for the next frame so it just uses the same frame again.

Kris

Eric Thivierge

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Jan 28, 2014, 1:17:42 PM1/28/14
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Are we talking particles or just applied to geo?

Eric Lampi

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Jan 28, 2014, 1:18:34 PM1/28/14
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Vray has be a royal pain in the butt for the project I have been working on. It's been buggy and inconsistent.

I'm definitely regretting letting someone talk me into it. I should have stood firm on Arnold.

Eric

Freelance 3D and VFX animator

http://vimeopro.com/user7979713/3d-work

Kris Rivel

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Jan 28, 2014, 1:23:32 PM1/28/14
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Just applied to geo....its very weird.  Its like I need to render each frame...but close and reload the buffer each time.  So render one frame, close, advance to next, render that frame, etc.

Steven Caron

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Jan 28, 2014, 2:35:27 PM1/28/14
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i wonder how much of that is the softimage implementation versus the standalone renderer versus another dcc integration?

Eugen Sares

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Jan 28, 2014, 2:45:27 PM1/28/14
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I suspect the implementation. Sorry to say... despite the countless bugs they fix all the time, there seems to be still always something...
Had to quit on using VRay for this architectural project because of a nasty hang. And unluckily, they couldn't repro my problem... I'll get back on this when I have time.
Using mental delay now... (has it's advantages, btw.)
 
 
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Steven Caron

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Jan 28, 2014, 2:52:50 PM1/28/14
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well, don't be sorry.. just means the plugin integration is lacking, nothing wrong with the core of vray, right?

Eugen Sares

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Jan 28, 2014, 3:09:27 PM1/28/14
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Yes, I mean the SI implementation. The core of VRay is quite stable. Has to be, after all it's kind of industry standard for the 3ds max visualization crowd (not only, of course) for over a decade now.
Might be that Chaosgroup's Softimage department is a bit understaffed.... I wonder if they make their money with it... hope so, it's basically a very good renderer, and I want to keep it in my toolbox.
 
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Von: "Steven Caron" <car...@gmail.com>
Gesendet: 28.01.2014 20:52:50
Betreff: Re: Re[2]: image sequence doesnt render with vray
 
well, don't be sorry.. just means the plugin integration is lacking, nothing wrong with the core of vray, right?

On Tue, Jan 28, 2014 at 11:45 AM, Eugen Sares <sof...@mail.sprit.org> wrote:
I suspect the implementation. Sorry to say... despite the countless bugs they fix all the time, there seems to be still always something...


Simon Reeves

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Jan 29, 2014, 3:06:22 AM1/29/14
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Regarding the original question, yes I think it's bug. I recall seeing a post about it on the official forum (which is a good place to ask these questions)
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Stefan Kubicek

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Jan 29, 2014, 3:19:36 AM1/29/14
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A shot in the dark, but this sounds like an export optimisation thing that was badly implemented (like the exporter saying: "Oh, I already know this texture, I won't export again to speed up the refresh), even if it's not an interactive session.

Have you tried disabling "Enable incremental export" in the Translator Tab of the render settings? Cleared the Export cache? Are you using Distributed Rendering?

I second Eugens and Erics findings of the Vray integration. The renderer is nice, but the Softimage plugin is, after all this time (4 years beta, two years on the market), still not quite production ready.
Especially export times (time to first pixel from the moment one draws a render region or presses render) is longer than with any other renderer that's currently available for Soft. The next major version is around the corner (allegedly with VrayRT support and Texture baking), so maybe that will change the situation.
Besides Redshift, it's still the only solution that gives good and fast results for interior scenes that require a lot of light bounces (unless you want to light in 3dsMax with the radiosity renderer, store global Illumination in vertex colors, transfer the geo over to XSI and render with 3Delights "SurfaceColor3DLight" vertex color feature , if you are gutsy enough to pull that sort of frankenrender off in a commercial project :-)
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Angus Davidson

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Jan 29, 2014, 6:29:08 AM1/29/14
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Does Vray for Si allow you to export to a .vrscene and then you can render that with standalone vray ?  That way you could possibly be able to see if its an issue with the plugin or the core.

Kind regards

Angus
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Will Sharkey

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Jan 29, 2014, 6:52:26 AM1/29/14
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Discovered this a while ago. A solution is to render with a frame range of 1, so your scene reloads after every frame. Not a pretty solution but it gets the job rendered!

Actually, I think I always applied the animated texture in the comp having rendered a animated texture pass with Mental Ray. For this you need to make sure you have ticked 'use camera FOV' on the Vray camera shader, otherwise you'll have a discrepancy between the Vray and Mental ray rendered frames.

Kris Rivel

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Jan 29, 2014, 10:08:06 AM1/29/14
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I found an OK solution....just wrote a script that renders the current frame, advances to the next frame, renders the current frame...etc.  Ugly as hell and just ran it in the UI but gets the job done!

Kris
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