Buckets difference

[Itoosoft]

One of our customers sent us a scene that generates different results by bucket (single workstation, no DR). Initially we though the problem would be caused by our plugin Forest Pack, but after several tests, we can reproduce the problem using proxies (no Forest).

The problem is random, generating different results repeating the render, or modifying the bucket's size. I've attached a couple of images, same scene but changing the bucket's size.

I can send you the files, but not publicy since it contains copyrighted files.

Thanks,

[Morbid Angel]

are you using a certain scatter plugin? its most likely related to the scatter/plugin if you are.

[mcnamex]

reflc cutooff by the look of things, without scene it is hard to trouble shoot

[Itoosoft]

No scatter plugins on this scene. Initially it was created with Forest, but we converted it to instanced proxies.

As far as i see, the problem happens only using proxies. I cannot reproduce it using a standard instanced mesh.

[tashko.zashev]

Hi,

Would it be possible to test the scene on our side?
I hope we can help with this issue.

[Itoosoft]

Sure. Please, tell me to what e-mail address must i send it.

[tashko.zashev]

Hi again,

You can use our support mail : support@chaosgroup.com

P.S. Don't forget to add this thread as a note.

[Itoosoft]

Thanks, i just sent you the scene.

[tashko.zashev]

Hi again,

Thank you for the file.
We managed to reproduce the same render error few times here.
However, testing the scene file confirms my thoughts, actually we have the same issue already reported in our bug tracker and our developers are working on it. As you said, the problem appears randomly in the reflections.

P.S. If any update is available we will post it here.

[super gnu]

i think i have a similar problem.. randomly my test renders will have buckets rendered by the dr slave without reflections... ive not got any proxies in the scene but i do have lots of vrayfur..

[tashko.zashev]

i think i have a similar problem.. randomly my test renders will have buckets rendered by the dr slave without reflections... ive not got any proxies in the scene but i do have lots of vrayfur..

Most probably this is different case, it would be helpful if you can supply a scene for this. Did you try some debugging at your side? Override material, different DR node, without GI (if you use it)..

[dgsantana]

We had the same problem but tracked to NormalBump. Replacing with VRayNormalMap solve our problem. Using this snippet can help with lots of maps.

(
	n = getClassInstances Normal_Bump
	for t in n do
	(
		vn = VrayNormalMap()
		vn.normal_map = t.normal_map
		rf = (refs.dependents t)
		for r in rf do
		(
			if classof r == VrayMtl do
			(
				r.texmap_bump = vn
			)
		)
	)
)

[super gnu]

unfortunately im on a super tight dedline, it only does it sometimes so im just checking my renders are ok before letting them run.. once im not busy busy ill check further. -oh and i have no normal bumps in my scene...

[Itoosoft]

Hi,

Any news regarding this issue ?

[svetlozar.draganov]

Hello Itoosoft

Would it be possible to test if this issue persist with Vray 3.0 in your environment.
We did some tests here with version 3.0 and it seams that everything works fine - but it would be helpful to know that it behaves the same way in your environment too.