QUESTION How to properly add kerbs in Blender?

Discussion in 'Tracks' started by PP831, Jan 6, 2021.

  1. PP831

    PP831 New Member

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    Hi everyone,

    I started to build my first track in Blender last december.
    It's an existing go kart track, where I usually race.

    I followed a french tutorial ('cause I'm french) to build the track.
    I first built a rough version and tested it on AC. It worked perfectly.
    So I decided to make a way better version, and here is the result at present:

    1.png

    I still have a lot more to do but for now I'm adding kerbs.
    My current method is the following one:

    1) I create a Bezier curve and make it match the position of the real kerb
    2) I created a kerb tile which I duplicate and apply Array and Curve modifiers, based on the Bezier curve
    3) I adjust the Bezier curve until I'm satisfied with the result...

    But I'm not entierly happy with this method, it takes a lot of time and it's not perfect.
    Sometimes the kerb is above the track :

    2.png

    How would you proceed?
    Thanks in advance for your time!
     
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  2. LilSKi

    LilSKi Well-Known Member

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    Take the edge of the road where you need the curb to be. Duplicate and separate the edge into a separate object. Then convert that object into a curve. Then assign the curb object to the newly converted curve. In some cases I make a tail on the front edge of the curb model that will tuck under the road surface so there won't be any holes.

    upload_2021-1-6_20-35-43.png

    upload_2021-1-6_20-36-1.png
     
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  3. PP831

    PP831 New Member

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    Thank you for your answer. I've started over building the curbs.
    But I think I have a little difference with you, because the curb is included in the track width.
    So I had to remove the allocated parts to the track to put my curbs.

    Your method is working well, but I have a problem with the edges, which are not connected to the track. Plus, the original track profile is not entierely flat, so... the curb object doesn't fit :(

    3.png
    I was thinking about applying the array and curve modifiers and then adjust the curb object to make it fit the edges, what do you think?
     
  4. PP831

    PP831 New Member

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    Here is a picture of the real track showing how the curb is included in the track width.

    4.png
     
  5. LilSKi

    LilSKi Well-Known Member

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    Adjust the tilt and and scale with the curve points. You can apply the array but I wouldn't apply the curve. As long as it's still attached to the curve UV mapping is easy and can be projected from view. After you apply the curve that goes out the window. Then if any holes need to be cleaned up just close them up and snap to the curb by hand.
     
    Last edited: Jan 7, 2021
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  6. PP831

    PP831 New Member

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    Looks much better now!... Huge thanks :)

    5.png

    If there are still some tiny spaces between two objects, is there a way that could mess up anything when driving on it?
     
  7. LilSKi

    LilSKi Well-Known Member

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    Tiny spaces aren't a huge deal. If it is an issue you will know right away as the results of a gap that's too big is hardly ever subtle.
     
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