BUG! Use Surface Border + BB = 3dsmax adapter error (Solved)

[cecofuli]

Hi Karba,

I'm 100% sure! I fighted 3 days, but I found the problem on my scene.
My outdoor scene is very heavy. 100+ layers and It uses 23 GB RAM..
I use 3ds max 3013 with the last Backburner (not the last PU for 3ds max 2013, because this PU has some conflict with my useful script)
Vista 7 64

When I try to render the scene with BB and VRay (BF + LC), when LC starts to calculated, the node crash. I see the task manager and when the 3ds max crash (with BB) I'm on 15 GB ram occuped.
So, it's not a RAM problem. I read a lot on the website, but I never thought that the problem was MS. After a lot, a lot of test, I try to render one layer at time... When I turn of a forest layer with tree, all was ok!!!!
when I turn on again, BB crashed. FINALLY, the problem in in this layer. I turn on-off all the MS parameters and I found the problem: Use Surface Border!
If I turn off, all is ok.
Could you check if all is ok in your plugin?
PS: this costed me 3 days of work/test/install/unistall... Fortunatly, I don't format the machine and the node...

[Karba]

Why do you use LC?
use BF+BF
or Dome Light + BF.

[cecofuli]

Hi Karba,
LC+BF
uff... I don't know what is the problem, and I don't know if the problem is VRay, MS or 3ds max 2013, but try to read here:

https://www.chaosgroup.com/forums/vbulle ... post560436

By only save in 2011 format and render the scene in max 2011, without any change, all is ok! Incredible! I I know, it's a work around but better than nothing.
In the chaosgroup thread I put the link to the dump file. Soon (in 15 hours ehhh) the entire scene . Is 1.8 GB and and my upload speed is very slow.

[cecofuli]

Hi Karba,

I worked inside max 2011 (new geometries,models, proxy and multiscatter)... And after today, I had again a crash with the new work added!!!
Before, no problem. I don't know if the "today problem" with max 2011 is the same as the problems 2013. But this time I isolated the "bug" in the rose geometry multiplied by Multiscatter.

(*) With sphere OK
(*) with Proxy n°1 (bush): OK
(*) with Proxy n°1 (rose): OK: Crash!

etc.. see the screenshot

In this case, the problem was in the Multiscatter (leaf shader -> Normal map)
In this shader, we didn't use a VRayNormal, but Normal Bump

So, after my fight, will be useful a script that automatically, replace the Normal Bump with VRayNormal Map.
I think, my problem with the entire scene (1.8GB and 200+ shader) was the same. But it's very complicated an time consuming task check all the shaders to see there is this fuck Normal Bump!!!
I remember, some months ago (or years?? ) about a bug with MS + Normal Bump, but I forgot it!!!
I don't know if It's useful add a "warning" inside VRay Log about the shaders where this Normal Bump (if used) is.


--- SCENE ---

[Karba]

Hi Karba,

I worked inside max 2011 (new geometries,models, proxy and multiscatter)... And after today, I had again a crash with the new work added!!!
Before, no problem. I don't know if the "today problem" with max 2011 is the same as the problems 2013. But this time I isolated the "bug" in the rose geometry multiplied by Multiscatter.

(*) With sphere OK
(*) with Proxy n°1 (bush): OK
(*) with Proxy n°1 (rose): OK: Crash!

etc.. see the screenshot

In this case, the problem was in the Multiscatter (leaf shader -> Normal map)
In this shader, we didn't use a VRayNormal, but Normal Bump

So, after my fight, will be useful a script that automatically, replace the Normal Bump with VRayNormal Map.
I think, my problem with the entire scene (1.8GB and 200+ shader) was the same. But it's very complicated an time consuming task check all the shaders to see there is this fuck Normal Bump!!!
I remember, some months ago (or years?? ) about a bug with MS + Normal Bump, but I forgot it!!!
I don't know if It's useful add a "warning" inside VRay Log about the shaders where this Normal Bump (if used) is.


--- SCENE ---

Of cource. Standart Normal Bump don't work properly since VRayScatter.
Use VRay Normal Map instead.

[admin]

Normal Bump is not working with VrayScatter MultiScatter. It is not working with VrayProxy also. It is 3dsmax-Vray problem and we can't fix it. Please use VrayNormalMap.

[cecofuli]

Hi Karba,
yes, now I remember. You wrote the same 3 years ago =) But I forgot. So, I don't know how, but why not add some "warnin" in Multiscatter to help the old user to remember or new user to know this bug. It's very stupid, like me, spent 4 day fighting with max , when the solution was so simple

[anvar]

we now improving our documentation and collecting all possible causes for crushing
https://docs.icube3d.com/en:multiscatter?&#crashing