Material texture appears tiny on imported .obj model

[sumpfsuppe]

Hi all,

I've modelled the roof of my future house and exported the model as Wavefront/OBJ (using Creo and Keyshot). In order to apply individually aligned roof tile textures, each surface has a different material:



So far, so good. Next I'd like to import my roof tiles, using this image. This is how the import wizard looks like:



Next, I apply the imported texture:



But then things get weird. The texture is applied, but the single roof tiles look super tiny:



There is also a full screenshot, I've added a bed for scale. [;)] At the first glance the surface looks plain gray. You may need to zoom in a bit to see that the texture is actually applied, but just too small.

I have already fiddled around with the settings, but it seems that the size defined during texture import has no impact on the visual result. I also tried the scale setting, but I wasn't able to get a reasonable result even with a factor of 10^5%.

Can anyone reproduce this and/or know how to solve this issue? You may use my 3D model (obj/mat): https://nx7423.your-storageshare.de/s/8miXndTBanMfi5N

I am using the Java Web Start version of Sweet Home 3D 6.4.2 running under Windows 10. Any help is appreciated, thanks!

[SeppoV12]

I imported your obj/mat model to SketcUp and noticed that longest side of roof was 1172 meter long. This don't explain everything but might be good starting point.
Seppo

[gregoryx]

You may get better feedback, but... I just used your file to modify a roof. I changed the texture with importing your linked .jpg and I sized it to 2' to 3' range and it seemed about right. Are you not sizing it as you import?

Alternatively, you could probably fix it as you have it by making the Scale 500 or something like that.