animation: buckets visible in final image?

[rendertaxi]

hi,

rendering the first animation in vray.. at least trying to. ;-)
for reference see the following thread: http://www.forum.vrayforc4d.com/viewtopic.php?t=86

now rendering final images and these show visible buckets that are lighter than the other parts of the image, not nice:

http://www.rendertaxi.de/mxl_images/CAP_070924_vrayani0004.jpg

http://www.rendertaxi.de/mxl_images/CAP_070924_vrayani0003.jpg

please note that these subsequent frames even show different lighter buckets..
what could be the problem?

thanks for your help.

regards, alex

[stefan]

can i see you settings, looks like some IR MAP too low this time.

cheers
stefan

[RenatoT]

Hi RenderTaxi,

i seen that if you disable the GI, make a render, enable gi, start the rendering .. this problem can appear.

make that thing in this way:

after you render without GI, enable it, start a render, stop rendering and restart the rendering.
Seem that vray cached some things and trace some bucket, without the GI.. just for the first buckets.

Let me know
Renato

[Franz78]

hi rendertaxi,
Can you post the scene?
Franz

[stefan]

rendertaxi please send me the scene, i am just rendering a HD full size animation with no problems over net.

let me please see the file and settings, you can email it to me. i also sign nda if you need.

we want to investigate this, as animation runs perfect on our systems here.

thanks
Stefan
vrayforc4d

[stefan]

here i made a fast test again now:

physky, phycam, glossy reflextion IR+LC GI (low settings)
90 frames, rendertime only 5 minutes over net all gi pass and shading pass together:

http://vrayforc4d.com/test1.mov

nothing special and a bit too low settings. but worked fast and easy.

the bigger HD animtion with 96mb c4d archviz file i can show after oct 2nd ( now under nda of client)

cheers
stefan

[stefan]

hi i looked into your scene and it renders fine here. i reduced the amount of LC samples though. they where much too high (4500), maybe the clients ran out of memory therefore?

cheers
stefan

[rendertaxi]

hi stefan,

thanks for your effort. i can´t tell you either, it still appears now and then.

as for reducing the LC samples: i reduce the number and then i have to repeat the calculation of first LC- and then IR-Map? or can i reduce and reuse the old maps?

alex

[stefan]

reduce and resave the LC

i call you....

cheers
stefan

[rikky]

I have just ran into a visible bucket problem using IR+Brute.

It seemed only to affect a particular material. The material had a color diffuse, a bump map and 2 specular layers.

Specular 1 was a Ward with no reflections, HG:0.5 and Fres:1.5. Specular 2 was a Blinn with reflections only, Amount:90%, RG:0.9 no Fres.

By disabling the 2nd spec layer (blinn) I got no buckets.

[stefan]

it seem to happen in vray rare situation, we investigate this.
cheers
stefan