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Blender Stretched UV Mapping

T

thomasph

Messages
14
Country
france
Hi,

I'm trying to make an airport from the excellent video tutorial (https://www.fsdeveloper.com/forum/t...ies-for-creating-scenery-with-blender.447046/) by @spotlope.

I have a problem with texture mapping, sommes faces are stretched and somes edges are misaligned yet I applied seams well, scaled and unfolded. All vertices are aligned :
Capture d’écran 2020-08-31 à 13.57.18.jpg

Capture d’écran 2020-08-31 à 14.06.55.jpg

Capture d’écran 2020-08-31 à 14.03.09.png
Capture d’écran 2020-08-31 à 14.03.27.png


You can see the small part of the roof is also stretched while it is a simple face. I have been searching for 2 days but I cannot resolve this, does anyone notice anything?


I noticed when i try to add a loop knife, all faces are not selected:

Capture d’écran 2020-08-31 à 14.03.44.png


the .bend is attached.

Best,
Thomas
 

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thomasph said:
Hi,

I'm trying to make an airport from the excellent video tutorial (https://www.fsdeveloper.com/forum/t...ies-for-creating-scenery-with-blender.447046/) by @spotlope.

I have a problem with texture mapping, sommes faces are stretched and somes edges are misaligned yet I applied seams well, scaled and unfolded. All vertices are aligned :
View attachment 61392
View attachment 61396
View attachment 61393View attachment 61394

You can see the small part of the roof is also stretched while it is a simple face. I have been searching for 2 days but I cannot resolve this, does anyone notice anything?


I noticed when i try to add a loop knife, all faces are not selected:

View attachment 61395

the .bend is attached.

Best,
Thomas
Click to expand...
I'm not at my laptop right now so I have to do this from memory alone, but I think when faces show up distorted in the uv map, one possible reason could be that not all of the faces of your model are either triangles or quad, meaning that you have some n-gons in that model, ie a face with more than four vertices. One quick way to check this is to select your object, enter edit mode, make sure that nothing is selected (alt-A by default) and then from one of the top menus, I think it's Select, there should be an option "Faces" - - >"select by trait" - - > "greater than" and then enter 4 as a value, this selects all faces that have more than four vertices. Than there should be an option, I think under the "Mesh" menu or just search for it in the toolbar, it's called "triangulate faces". This should now convert all the selected ngons into triangles. Now select all faces of your object again and hit U to unwrap again and see if it works out better. You will however have to reposition all the UV islands on your UV map manually again.
 
Hi fabs,

Thanks for reply, i have found the problem. In blender i have changed the unwrap method to "conformal" from "angle based" and all are ok now :

Capture.PNG


And the result:

Capture.PNG
 
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