Trouble with Vray-reflection

[dinhtuan]

That images rendered by Max-Vray with backburner. I have 10 computer and all use the same Xp64- Max9 32bit-Vray 1.5 but there are rendering images of 2 computers have different reflection compare with the other .Pls take alook at the images attached here to see different between them.

I can't find out what wrong now. Any help is much appreciated.

Thanks & Best regards,

[dagor]

hmmm, realy don`t know with what i should compare this image (don`t say please each other ), it`s ok for me, but if it`s only 2 of all computer render it wrong i think it is network trouble. check shared network path, all texture, lightmap and proxy are shared. check network settings to.

i rendered via netdork long time ago, but i has some different bucket and it always was shared path problem.

[JamesTaylor]

i don't see the problem?? nothing out of the ordinary as far as i can see???

[alias_marks]

ya, I think you may be splitting hairs here. I see the "jump" I think you're referring too. maybe it's the fact that's it's a polygon with faceted faces that are smoothed out, but the reflection still jumps "through" the facets. Maybe try adding more subdivisions to the circular column where the reflections are having trouble.

 

M-

[dinhtuan]

Thanks your replies

 

The reflection in interior images to small to see them dancing . I attached here more exterior images with bigger reflection area. pls use Ram player load sequence to see what I mean . Thanks

 

@alias_marks: It happen to all the objects have reflection. I tried with smoothing but no luck.

[thierrybauwens@inpix.be]

I do not see the problem, maybe in the first series it comes from the point of view: you have maybe a serie of palms and it's another one reflecting just behind. Try rotate a little the point of view

[pyang]

Vray for one light setting animation, precal all GI light. I use precal LC fly through as my first and second bounce. make sure your nearest parameter is big enough (32+)to smooth out any artifact in animation, reflection, refraction, etc. then use Irr Map cal every 10th as fit (-5,-4, 100,50) smooth as first bounce w/ saved LC in second bounce. saved all that when done into one Irr map and use it to render the frames in min. setting QMC 1,4. sorry couldn't be clearer.

 

Thanks your replies

 

The reflection in interior images to small to see them dancing . I attached here more exterior images with bigger reflection area. pls use Ram player load sequence to see what I mean . Thanks

 

@alias_marks: It happen to all the objects have reflection. I tried with smoothing but no luck.

[dagor]

2pyang

how does it help with his reflecion problem? O_o

 

2dinhtuan

can you show us a shaded wire view. it`s realy looks like geometry promlem like Michael said.

 

also you say than only 2 computes from 10 render it wrong.

try to render it in one cumputer and check out.

[dinhtuan]

Yeah! i have to re - render all frames rendered from that 2 computer on other one and everything ok. Take alook at the same frames but rendered on different computer you'll see the different reflection.

 

Thanks and regard

[Roest]

I have seen this in two of our animations, we thought it had something to do with the geometrie (double faces, flipped normals).

 

I will have a test later on today and check this out.

 

good luck!

[dinhtuan]

@Roest: Are there any news? hic

[dinhtuan]

It's seem only me and Roest have problem with reflection on networkrendering. I'll reinstall that computer today. hope it happen because some virus

[dagor]

reinstall would not help you.

you need check your scene step by step from very basics...

[Mr-JosE]

I think this may be a units problem. Specifically big numbers. You tend to see this thing when moving models from a 64bit system, that can handle large numbers, to a 32bit system which struggles. I would say check the accuracy setting in max, put it down to 2 decimal places, something like that, and resave. Then try and re-render. I have a feeling you have a farm of 64bit and 32bit machines. But i could be wrong.

[Roest]

Yeah sorry bro, will have a try tomorrow.

 

All our computers are 64 bit so i don't think that matters..

You say it happens to all geometries with reflection?

 

This happens also to standard geometrie like a box, cylinder?

 

greets,

[dinhtuan]

All our computers are 64 bit also . You can see in images I attached - it happens to all reflect surface

Thanks

[Roest]

Ok i run the test this morning,

 

It seems our problem is fixed by editing the geometrie. There were double lines and vertices in the mesh which causes the reflection problem.

(images attached show the problem we had)

 

As far i can see this isn't a solution for your scene...

I've rendered both scenes with BB on 7, 64bit computers.

 

There are some things to do i think;

- Have you tried the same material in a simple scene on standard geometrie like boxes?

 

greetss

[Roest]

Well, i'm curios if you fixed the problem..

 

In mean time i've noticed another solution for reflecting/refracting issues especially for complex geometrie or there were shell is used. Try the smooth modifier (autosmooth).