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Trouble with scattering geometry [SOLVED]
Posted: Sun Oct 30, 2016 10:29 am
by akvahouse
Good afternoon, I have problem with scattering geometry in Maya, because geometry transforms to low poly. And it does not happen immediately, first render is going well, but after a certain number of times, the geometry is converted into low poly. Can someone tell what's wrong?
Thank you for attention!
Screenshots:

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Operating System - win 10
Graphics Card model - gtx 770
RAM Capacity 32 gb
Nvidia driver version 372.70
OctaneRender Standalone version - 2.25
OctaneRender plugin version 2.25 - 7.30
Host application version - Maya 2016.5
Re: Trouble with scattering geometry
Posted: Sun Oct 30, 2016 10:58 am
by calus
akvahouse wrote:Good afternoon, I have problem with scattering geometry in Maya, because geometry transforms to low poly. And it does not happen immediately, first render is going well, but after a certain number of times, the geometry is converted into low poly. Can someone tell what's wrong?
Hard to guess what's happening here.
But did you consider rendering from Octane standalone ?
As this is camera animation only, the export process should be pretty straigthforward.
Re: Trouble with scattering geometry
Posted: Sun Oct 30, 2016 11:07 am
by akvahouse
calus wrote:akvahouse wrote:Good afternoon, I have problem with scattering geometry in Maya, because geometry transforms to low poly. And it does not happen immediately, first render is going well, but after a certain number of times, the geometry is converted into low poly. Can someone tell what's wrong?
Hard to guess what's happening here.
But did you consider rendering from Octane standalone ?
As this is camera animation only, the export process should be pretty straigthforward.
No, I don`t export scene in standalone))
This bug is related to textures, octane cuts them. In library scene all works, but with one object.

Re: Trouble with scattering geometry
Posted: Sun Oct 30, 2016 11:23 am
by calus
akvahouse wrote:
This bug is related to textures, octane cuts them. In library scene all works, but with one object.
right it seems textures are not found for some reason as soon as your object is duplicated.
That's strange because standart instancing in the Maya plugin usually works fine.
What method did you use to scatter the geometry in the Maya scene ?
Maybe I should have look at the sunflower test scene if you can share it privately ?
Re: Trouble with scattering geometry
Posted: Sun Oct 30, 2016 11:47 am
by akvahouse
calus wrote:akvahouse wrote:
This bug is related to textures, octane cuts them. In library scene all works, but with one object.
So you mean that as soon as the object is instanced, alpha textures are wrong ?
That's strange because instancing in the Maya plugin usually works fine.
Do you have different materials per instance ?
What method did you use to scatter the geometry in the Maya scene ?
I see your shaders have "pasted" in there name, did you duplicate by copy pasting at some point ?
Maybe I should have look at the sunflower test scene if you can share it privately ?
I used sppaint3d script to scatter geo, and i copy geo with shaders from scene that I created before for shading:
Yes, i can share this scene))

Re: Trouble with scattering geometry
Posted: Sun Oct 30, 2016 12:07 pm
by calus
akvahouse wrote:calus wrote:
Yes, i can share this scene))
ok so let's do this,
a minimal scene with textures showing the problem is best,
you can click on my user name to send a private message,
or share it here, as you prefer.
Re: Trouble with scattering geometry
Posted: Sun Oct 30, 2016 12:24 pm
by akvahouse
calus wrote:akvahouse wrote:calus wrote:
Yes, i can share this scene))
ok so let's do this,
a minimal scene with textures showing the problem is best,
you can click on my user name to send a private message,
or share it here, as you prefer.
Standalone don`t help:(
Link to scene:
https://drive.google.com/file/d/0B3B199 ... sp=sharing

Re: Trouble with scattering geometry
Posted: Sun Oct 30, 2016 1:21 pm
by calus
looking into the scene now but the issue is already on the original mesh,
not sure yet if it's a file path problem or lost facesetID ...
Re: Trouble with scattering geometry
Posted: Sun Oct 30, 2016 1:51 pm
by calus
oh I think I found the problem isolating one object, seems to be UVset relative.
The problem occure when using an empty UVset, looking more into this.
Re: Trouble with scattering geometry
Posted: Sun Oct 30, 2016 2:24 pm
by calus
You have 4 UVsets per original object

- maya_2016-10-30_14-59-33.png (7.96 KiB) Viewed 4660 times
I think for some reason an empty default uvSet map1 has been added, and is the active uvSet in your scene.
If only DiffuseUVset is supposed to be used, just copy the UVs from DiffuseUVset to map1, for the 2 original objects.
But if depending on the textures the uvSET supposed to be used can be DiffuseUVset or DetailUVlayer, or ExtraInfo
so you should had and a UVprojection node to the imagefile selecting the corresponding uvSet by numbers.

- maya_2016-10-30_15-28-05.png (8.62 KiB) Viewed 4656 times