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Imported .obj with messy geometry texture

FExFOFExFO Posts: 5
in New Users

Merry Christmas Everyone!

i'm a beginner and maybe the problem i'm having is something simple to solve but i don't know how.

I made this street in sketchup, I opened it in 3ds max, everything ok and exported as obj ... for some reason only the part of the asphalt got messy and as I change the position of the camera, the mess in the texture changes randomly .

There are no double faces on the model.

I don't know if this is something that needs to be corrected within DAZ or directly in the model (but as I said, everything is perfect in sketchup and 3ds max), but I have already created two complete furnished houses, using this same process and I didn't have this problem importing into DAZ before ... now this asphalt thing is killing me.

2020-12-25 11_58_14-Greenshot.jpg
1480 x 756 - 484K
2020-12-25 12_00_01-Greenshot.jpg
1480 x 756 - 497K
2020-12-25 12_03_58-Greenshot.jpg
1480 x 756 - 511K
2020-12-25 12_05_49-Greenshot.jpg
1480 x 756 - 489K

Comments

  • Richard HaseltineRichard Haseltine Posts: 100,781

    DS doesn't like long, thin triangles - the ideal fix is to retopologise those flat areas into squares or rectangles

  • FExFOFExFO Posts: 5

    I don't know if I understand what you mean.
    But I already tried to export the model from 3ds with the topology as both triangle and quads, in both cases I had exactly the same result.

    Correct me if I'm wrong, but there is no way to avoid triangles in the topology of a 3d model because even when you export a model as a quad or create a square or rectangular polygon as you said, internally it still consists of two triangles, right?

    But okay, I know that the subject is getting to a place where doesn't have much to do with DAZ, I just posted here because I am new to the software and it could be something simple that I am doing wrong, I'll keep trying for a solution, when I find out what it is wrong I post here.

    Thanks.

  • Richard HaseltineRichard Haseltine Posts: 100,781

    Yes, it will be broken into triangles - the thing to avoid, or at least a thing to avoid, is long, thin triangles - which you appear to have above (it's the way Sketchup has always tended to break up the large planes that make up its models, and it has always tended to be an issue as here as I recall).

  • FExFOFExFO Posts: 5
    edited December 2020

    I found a workaround, as I was suspecting the problem was not in the model since only part of it (asphalt) was having texture problems and everything else was ok.

    I realized that the part of the asphalt was acting as if it had double faces, with its textures competing who would appear in the render and creating a mess in the final result. Since the asphalt face goes through the X and Z 0.00 axis in DAZ, I tried to move the model up just a little bit (Y 0.0001) and BINGO !! He rendered the model completely smoothly. In the end I preferred to move the environment down instead of changing the model origin point.

    Edit: Attached images with better description.

    01.png
    1800 x 917 - 3M
    02.png
    1800 x 917 - 2M
    Post edited by FExFO on
  • WendyLuvsCatzWendyLuvsCatz Posts: 38,204

    yes Sketchup has double the geometry as it backface culls and DAZ studio does not like overlapping geometry inhabiting the same 3D space

  • genius_3587271genius_3587271 Posts: 42

    There is a sketchup plugin which offers front-to-back and back-to-front copy: https://sketchucation.com/plugin/740-tt_uv_toolkit

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