VRAY render not working

thomthom

If you open the Ruby Console before rendering - do you get error messages?

nitav

Welcome to my new post about the solution for the bug Vray and Sketchup.
This is really a badly rarely statement that sketchup is on high with the Modeling section & User friendly fast relaible 3D software.But only it is on low with the rendering section.Ya, i am going say that it is very bad for the Thread Optimization of the C.P.U, so it consist of 1 giant negative point.

O.K. lets talk about the solution.!!!
Many questions i found similar to this bug on various website but, all were possibly not solved.
And in answer to this question, you will get :-

1).  have you tried refreshing?
2).  try this: selecting all objects then copy open new file then paste then then render.
3).  Hide some elements & components.
4).  Bla, Bla, Bla .........

Well, I have the solution and that is very simple :-
~ Explode components in your scene as much as possible while rendering the scene.
Means : If you are modeling or importing 3D objects to sketchup file,make sure that it
should not be in deep. Do not make components under components or Groups under
groups. Upto Level 1 to 2, it is enough but do not go beyond that. It is recommended
to get rid off this BUG..!!!

thomthom

I've not had any issues with nested groups/components. And I've had some very heavily nested models.

In the very first V-Ray version there was a bug where some groups would not render, but in the next releases it was fixed and has never been an issue.
I would not sacrifice model organisation.

nitav

@thomthom said:

I've not had any issues with nested groups/components. And I've had some very heavily nested models.

In the very first V-Ray version there was a bug where some groups would not render, but in the next releases it was fixed and has never been an issue.
I would not sacrifice model organisation.

In sketchup all you have is Polygon or faces and Nested objects.
thus it reports this bug. It is better to use 3D max then pointing towards the version of sketchup and vray or just wait for that day when sketchup will become a high end software..

thomthom

@nitav said:

thus it reports this bug.

?

@nitav said:

It is better to use 3D max then pointing towards the version of sketchup and vray or just wait for that day when sketchup will become a high end software..

I use SketchUp and 3DsMax and I have no issues with either.
Doesn't matter what modeller you use as long as it can create the mesh - and SketchUp is more than capable of producing the geometry I want. Have a look around and see that people are having no problem creating images matching with SketchUp + (Insert your favorite render engine) as with any other modelling package. It's just a tool - like any other.

Anyway, how it this related to V-Ray for SketchUp and the original question?

nitav

@unknownuser said:

I use SketchUp and 3DsMax and I have no issues with either.
Doesn't matter what modeller you use as long as it can create the mesh - and SketchUp is more than capable of producing the geometry I want. Have a look around and see that people are having no problem creating images matching with SketchUp + (Insert your favorite render engine) as with any other modelling package. It's just a tool - like any other.

Anyway, how it this related to V-Ray for SketchUp and the original question?

I dont know what you are on about but i am sure my answer is little bit helpful to the questioner,bcoz the same problem got me 1 month before.lets stop arguing ourselves and lets wait for the questioner to comment here that he fixed his bug or not .?

Gotcha..?

thomthom

Just didn't find "explode the whole model" (a completely destructive function) or "use another software" to be a reasonable solution.

But I agree, lets see what the OP has to say. More info is needed.

nitav

@thomthom said:

Just didn't find "explode the whole model" (a completely destructive function) or "use another software" to be a reasonable solution.

But I agree, lets see what the OP has to say. More info is needed.

hey..! thomthom,use Shortcut key for Explode.
Select everything by pressing ctrl-A and keep pressing the
that explode shortcut until the Outliner is empty.
or also u can use Bomb ruby plugin from Smustard.com.

rspierenburg

Perhaps the OP can post their model for others to try.

Rob

thomthom

@nitav said:

hey..! thomthom,use Shortcut key for Explode.
Select everything by pressing ctrl-A and keep pressing the
that explode shortcut until the Outliner is empty.
or also u can use Bomb ruby plugin from Smustard.com.

My objection against exploding a model (apart from being very slow operation on large models) is that's not a good workflow. When I render I don't render just once and dump the model. I often have to revise the render as the project changes. In order to make revision efficient I need to maintain group and component hierarchy.
Additionally, VfSU will process a model with component instances more efficiently in contrast to an exploded model.
Exploding a model to render it is like formatting the harddrive because a single program is acting strange. Using a cannot to kill a mosquito.

When answering questions I try to find the best solution - that can work in a good workflow. Exploding can be ok if you're in a desperate pinch to render for a deadline - but I'd not settle with that. I'd go back and find a better solution.
And I have yet to experience a situation where I need to explode a whole model to render it.

thomthom

@rspierenburg said:

Perhaps the OP can post their model for others to try.

Joined: 24 May 2012, 11:08
Last visited: 24 May 2012, 14:05

Don't think this user will come back and update us on the issue. (As often happens.)

panixia

@thomthom said:

@rspierenburg said:

Perhaps the OP can post their model for others to try.

Joined: 24 May 2012, 11:08
Last visited: 24 May 2012, 14:05

Don't think this user will come back and update us on the issue. (As often happens.)

anyway, i have a question about components.. when multiple instances of the same component are painted whit multiple color, vray take advantage of it being a component or it manage it as it is made "unique"?
not pretty sure in this case, but i noticed that others operations such as freedoscale etc, applyed on a component will make this unique and increase the parsing time for vray..

thomthom

@panixia said:

anyway, i have a question about components.. when multiple instances of the same component are painted whit multiple color, vray take advantage of it being a component or it manage it as it is made "unique"?

Internally it will create a new definition for each material variation.

panixia

so not advantages at all keeping it a component but then painting.. right?

thomthom

@panixia said:

so not advantages at all keeping it a component but then painting.. right?

If they all have unique instance material - then I think no.

panixia

ok, i will do an example:
let's pretend i've got 6 instance of a component with default material painted on the raw geometry, then i use paint bucket or tru paint to "paint the outer-box" and paint 3 of them in red and three of them in pink, then what would be appening? vray will internally create 2 istance or 6?

example b: i have the same 6 istances and paint the SAME material on all 6, BUT i use tru-paint to map different uv-mode of the very same material on each box, then vray will see them as a single istance or 6 of them?

thomthom

@panixia said:

let's pretend i've got 6 instance of a component with default material painted on the raw geometry, then i use paint bucket or tru paint to "paint the outer-box" and paint 3 of them in red and three of them in pink, then what would be appening? vray will internally create 2 istance or 6?

2 definitions with 3 instances each.

@panixia said:

BUT i use tru-paint to map different uv-mode of the very same material on each box, then vray will see them as a single istance or 6 of them?

Not sure what Thrupaint does then - but what does SketchUp report after using Thrupaint? Does it make the instance you pain unique?

panixia

no wait, i remembered wrong.
actually you can't edit uv scale from outer box painting, it acts like regular paint bucket. so making unique is needed to have different texturing.

then what about instancing and scaling? i notice if you use regular native scale tool (not fredo scale/stretc/bend etc) from outer box, it keeps it a component (in sketchup entity info), without making unique, but what appens with vray? same as colour? it will create an instance for each size? or for each one?

rspierenburg

Hmm...thats interesting. I just assumed that since each object would be in a different location it would have to parse each one as if it were unique due to changes in lighting/shadow, reflection etc. So if you had 6 of the same component it would read it as 6 separate instances unless they were all located in the exact same location under the same conditions. I wouldn't think the rendering engine would be object based.

Rob

thomthom

It does need to calculate per instance when rendering - but in terms of pre-processing the geometry it's reusing it.