Exception: Rendering region ; Exception: Memory allocation failure;

[PDT]

You have any idea? happened to you? as you are leaving? if I make a working width 800 ... already at 1200 px width just freezes everything!
The fact is that they are just starting to work ...
If I am such damages are now fk!




Copy and paste a part of the render message ...
[...]
MtlMulti (noname) "mtls" parameter is deprecated; use "mtls_list" and "ids_list" instead.
[...]
Exception: Rendering region (240,432)-(288,480)[...]

[PDT]

Re: Exception: Rendering region (###,###)-(###,###)

same problem with QMC + QMC !!!

[dalomar_cg]

Re: Exception: Rendering region (###,###)-(###,###)

Since you're using DR, it might be a problem with older versions of the spawner on the slave machines. This can cause black buckets and even crash the spawner, so its important that the version matches with VfSU. There's no way to specifically check which version of the spawner is installed, so its best just to reinstall from the installer that is the same version as VfSU. Try that on just one machine first, and if it fixes the issue, roll out the change to the rest of the servers.

[PDT]

Re: Exception: Rendering region (###,###)-(###,###)

Damien the problem occour even with a sigle machine and with DR ...
I think the problem is the memory menagement ... the rendering process work fine at 800x600 px ...
but if i render multiple static scene the problem appear in the second image ....

Is this a problem correlated to the machine ??? (notebook 2core 4gb ram vista 64) I hope no!

Can i manipulate Global switchese and System option for prevent this situation ???

this morning I opened a support (as do I send files compressed?) .... I am therefore waiting for your response in order to advance forward the file containing the model materials and options to make ...

[dalomar_cg]

Re: Exception: Rendering region (###,###)-(###,###)

Considering this and the other problem you were having, it would seam like your install has been corrupted some how. I would completely uninstall V-Ray, then reinstall it again and see if that helps. Files and installations can get corrupted for a whole bunch of reasons, so best to make sure that we're on solid ground before we start offering up other suggestions about what it could be.

[PDT]

Re: Exception: Rendering region (###,###)-(###,###)

understand, damn ...
ok uninstall and reinstall ...
simply the procedure of automatic uninstall?
or i have to dlete modify somethnk manually !!!

sketchup? Now, plug in and everything else, is certainly not the same as Mom did it! I have to uninstall it?

[PDT]

Exception: memory allocation

Damien, as required, last night I uninstalled and reinstalled v-ray ... and, as I was already there, I also uninstalled sketchup!
Nothing in this work-model I can't render higher resolution images of a 900-1000 px wide ...
the error message, however, is in fact changed, and for rows and rows, the message box me again this song ....

[...]
Exception: Memory allocation failure; 1680000 bytes requested; 1463779239 bytes already in heap; 2860480 bytes free heap space.
[...]

and so on...

[PDT]

Re: Exception: Rendering region ; Exception: Memory allocation failure;

Here I am still here ...
I attach a snapshot of the texture used in the model ...
ok ok not miss lightly but I think (and hope) that the dimensions are acceptable after all ...



while I'm writing also, I'm trying to render the model without using the displacement and a resolution (1200X680) ... VRay does not go wrong, but without displacement can not continue ...

Now we have some more clues:
1: fresh install
2: 40MB of texture
3: displacement!
[Edge Length (pix) 4]
[Max Subdivis 256]
[amount 55]
[bbox relative to NO]
[view-dependent YES]
[Tight bounds YES]

[PDT]

DISPLACEMENT cause Exception when rendering ???

Damien the problem occour even with a sigle machine and with DR ...
I think the problem is the memory menagement ... the rendering process work fine at 800x600 px  ...
but if i render multiple static scene the problem appear in the second image ....

now that i've reinstalled the problem occour only with """large""" image with displacement ON;

this is a view with displacement ... only 800px width
displacement applyed to
1)Water
2)wall on the lake
3)Rock in background



This is a view withot displacement

[thomthom]

Re: Exception: Rendering region ; Exception: Memory allocation failure;

Is that one large face which you have applied a displacement material too? If so, split it into several smaller faces.

[dalomar_cg]

Re: Exception: Rendering region ; Exception: Memory allocation failure;

Congrats, you found the issue...now let me explain why.

In the parameters for displacement, you'll see the parameter called Edge Length. Typically this is measured in pixels and I'm sure you probably haven't changed that from the default value of 4. At a screen resolution, this is an acceptable setting, but when rendering at a much higher resolution, this forces the edge length to be very small and require a much denser mesh. The calculation of the mesh at that density is most likely what is causing the crash. Therefore, when you increase your resolution, you must also increase the edge length to keep the displaced mesh at the same resolution as before.

The other thing that might be coming into play here is that the displacement mesh is calculated on a per face basis. What that means is that V-Ray can calculate 1 face at a time, then move on to the next face. If you have very large faces, then V-Ray will have to calculate a very large mesh for that one face. If you can, its better to divide up some of those larger faces that are being displaced.

[PDT]

Re: Exception: Rendering region ; Exception: Memory allocation failure;

Thanks Thom, the wather is the only large face ... the first i've create here!!!
... now i'm split it

Thanks damien too... Edge Length was set as default !4!
now i'm playng with 0.1

I hope this nightmare is over!
I want you to date

[thomthom]

Re: Exception: Rendering region ; Exception: Memory allocation failure;

Thanks damien too... Edge Length was set as default !4!
now i'm playng with 0.1

Damien's recommendation when you increased the output resolution was to increase this as well. Making it smaller makes V-Ray consume more memory again.

[dalomar_cg]

Re: Exception: Rendering region ; Exception: Memory allocation failure;

Very sorry about that, but you need to INCREASE the edge length. Decreasing it will make the faces much smaller, thus needing more. This is what is crashing your computer @ 4px. At .01 pixels you won't have a chance, even at a screen resolution. Sorry for the mix up, and I've changed my original post so it doesn't confuse anyone else.

[PDT]

solution: displacement can cause crash

Everything works! perfect!
damnation if imposed a 0.1 jump in the air all!

Yes, even I thought that, given the excellent description of damien, these sides would be due to large-scale ma ... when damien said ... maximum respect!

Now edge length is 20 and the images with a single dual core, are formed rapidly ...

This post, to all intents and purposes, should be placed and moved by the bug in the tutorial and added some different pictures and different edge time, it is true the program crashes, but ... the guilt and 'unconsciously our ... I hope one day to have a little time to do it!

What do you think damien if, before the calculation occurs briefly the presence of parameters (perhaps not only the edege l.) that "human" could be explosive? and intercepted once you tell the user?
These steps may save your skin in some cases!

I will post an image obtained are still preliminary, if I get something nice to send the VRay render-off ...