I’m trying to reproject textures onto simple remodelled geometry from maya (exported as an .obj)
It has UDIMs (1001,1002,1003,1004).
On model import in RC, it say`s a texture coordinate u or v is bigger than 1.
I thought that RC can handle imported models with multiple UV-tiles?
I sent you an email on the 14th with an obj (also attached to this post) which also fails to import (having worked ok previously). I checked it in Mudbox and it got the following…
UV_ProblemNoProblem.png
Since this problem is related to smoothing in Mudbox, it doesn’t seem applicable to RC. Is it possible that RC is being a bit over zealous in checking UVs and flagging things that won’t cause issues here?
Furthermore, even though Mudbox ‘warns’ that it has detected problems, it still gives the user the option to import the file. RC on the other hand just refuses, which seems unnecessarily strict.
Thanks
Edit:
I’ve just realised that it’s not the UVs causing the error here, but the actual geometry. Mudbox is saying the this is a problem…
GeometryFail.png
If this is also the reason the obj won’t import into RC then please consider relaxing the ‘rules’ because this really shouldn’t be considered illegal geometry.
Hi IanB
We have defined strict policy only for cases which cause memory leaks or crashes later in the pipeline… in photogrammetry you need a bit strict rules as the algorithms used here are quite different from ordinary 3D software solutions…
I double checked the situation and it actually is the UVs rather than the geometry which causes the OBJ to not import. Even the most simple OBJ with UDIMs gives this error:
UDIM_Error.PNG
This is what the geometry and UVs look like:
UDIM_Cubes.PNG
Could you please take a look and see why this isn’t importing. The OBJ is attached.
Also, regarding the checks that are done when importing geometry could you explain these and include these in a FAQ? I anticipate many people having problems having similar issues unless they’re aware what the rules are.
So just to clarify - importing a OBJ with UVs across multiple UDIM tiles is not currently supported, right?
Cause I’m getting the same error when trying to import my mesh with multiple UDIM tiles into my scene (Error message: “A texture coordinate u or v is bigger than 1”)
I may be misunderstanding something in Reality Capture’s implementation - but I’m very familiar with UDIM workflow.
UDIM tiles DO go over U 1.0 and V 1.0 in UV coordinate space.
Attached is an example cube I tried to import into my Reality Capture scene, with each of it’s faces on a different UV tile (UDIM’s 1001 to 1006) Is there something I’m missing? Or is importing a mesh with UV tiling not supported yet?
I also don’t understand how UDIMs are supposed to be supported if values can’t be greater than 1. I’ve read the fxguide article and can’t see anything which explains this.
How *are* UDIMs defined if not by values outside the 0-1 range?
I also don’t understand how UDIMs are supposed to be supported if values can’t be greater than 1. I’ve read the fxguide article and can’t see anything which explains this.
How *are* UDIMs defined if not by values outside the 0-1 range?
Christopher Parent wrote:
Did this post carry on somewhere else?
Are UDIM’s supported or not.
I really would like to have answer to these questions.
I have been struggling with this issue for quite a while now and seem to not getting proper answers anywhere.
I’d like to know if this was fixed as well. Unfortunately my license ran out a few months ago and I really don’t want to renew it and find out stuff like this still isn’t working.
Could someone try importing the cubes OBJ I attached on the previous page and post the results?