OTOY Forums

Hi,

i'm trying to render interior scene.
I got error Unable to determine UV index for UV Map [Unnamed UV Set 0] for mesh
what I need to do to fix this?

thanks.

screen:
https://www.dropbox.com/s/aa30qtzhi0glj ... 6.png?dl=0

also, different texture size in viewport and in rendering window...?

Pls see the video in the manual regarding multiple UV maps.

https://docs.otoy.com/Modo/?page_id=1159

If this does not resolve your issue, pls send me the scene and I will investigate further.

Thanks

Paul

face_off wrote:Pls see the video in the manual regarding multiple UV maps.

https://docs.otoy.com/Modo/?page_id=1159

If this does not resolve your issue, pls send me the scene and I will investigate further.

Thanks

Paul

thanks Paul, problem solved. there was an old uv map under uv maps list.
but still can't figure out why the texture size is different in viewport and in renderer? big size different?

At a guess I would say you have used an unsupported projection mapping, or scaled the projection using an unsupported property. The supported projection properties are at https://docs.otoy.com/Modo/?page_id=799

Paul

I think it's becuse of scaling model after import from CM to M
I just copy part of model into new scene and model is rescaled back in CM??? by scale factor 0.01?
and in new scene texture size is the same in viewport and octane render

I think it's becuse of scaling model after import from CM to M
I just copy part of model into new scene and model is rescaled back in CM??? by scale factor 0.01?
and in new scene texture size is the same in viewport and octane render

I have never heard of that happening before - thanks for letting me.

Paul

face_off wrote:I have never heard of that happening before - thanks for letting me.

Paul

Yep, very strange, but it's Modo related, not Octane

here is my problematic scene from this topic. i remove everything unnecessarily from it for easier understanding ...

link model:
https://www.dropbox.com/s/wto6a3ulupawiof/test.zip?dl=0

link screens:
https://www.dropbox.com/s/hphso0mqlfiiq ... s.zip?dl=0

You have World Transforms ticked - and this is not supported by the plugin (as per the documentation link above). The scaling of the house to 10000% is scaling the UV's too. So until World Transforms and tick World Coordinates and it should match. Or you can add an Octane Override and manually tweak the Octane Projection to match.

Paul

thanks Paul,

moving from 3dsmax into modo/octane.
beginner mistakes

thanks.