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Hello and sphere texture mapping question

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  • S Offline
    spreadcore
    last edited by 24 Jul 2013, 16:19

    Hello my question is about mapping a texture to a sphere.

    Here I used the method where you project the texture on to the curved surface.

    http://s21.postimg.org/6evy9oufn/bowling_ball_3_viewsl.jpg

    click for larger image.
    http://s21.postimg.org/wzyh58wt3/bowling_ball_3_viewsl.jpg

    This worked real well, except when you rotate the sphere. The logo is on the back also and reversed.

    I would like to remove the logo on the back or at the least make it so it's not reversed.

    I've tried painting the texture to the sphere and then using the "UVTool.rb". While this removed the logo in back, it stretched the front logo out of shape.

    I tried selecting only the geometry the logo was on and applying a new texture. But you can see the edges where you did it.

    My thought was to select the back of the sphere only and applying a seamless texture (without logo) to it. But I'm don't know if there's a easy way to select exactly half the sphere?

    So is there a better procedure to try to do this?

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    • K Offline
      Krisidious
      last edited by 24 Jul 2013, 20:36

      @spreadcore said:

      My thought was to select the back of the sphere only and applying a seamless texture (without logo) to it. But I'm don't know if there's a easy way to select exactly half the sphere?

      So is there a better procedure to try to do this?

      I think that's your best bet...

      By: Kristoff Rand
      Home DesignerUnique House Plans

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      • M Offline
        massimo Moderator
        last edited by 24 Jul 2013, 21:02

        @unknownuser said:

        But I'm don't know if there's a easy way to select exactly half the sphere?

        Enable hidden geometry (view-->hidden geometry) then switch to parallel view (camera-->parallel projection) and choose a suitable view. Then pick the select tool-->click and drag from right to left the selection window.
        Cattura.JPG

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        • S Offline
          spreadcore
          last edited by 25 Jul 2013, 01:40

          Thanks Krisidious and massimo for the replies.

          Selecting the back of the sphere only and applying the texture to it was the answer.

          Though massimo the "Enable hidden geometry......." tip had a problem. It would select the entire sphere, not just the half.

          I found that applying a cross section also to the sphere, allowed me to select only the back half.

          Thanks for the help everyone.

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          • M Offline
            massimo Moderator
            last edited by 25 Jul 2013, 06:22

            @unknownuser said:

            Though massimo the "Enable hidden geometry......." tip had a problem. It would select the entire sphere, not just the half.

            Well enabling hidden geometry is really needed to select the half sphere. How did you do the selection?

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            • S Offline
              spreadcore
              last edited by 25 Jul 2013, 12:42

              @massimo said:

              @unknownuser said:

              Though massimo the "Enable hidden geometry......." tip had a problem. It would select the entire sphere, not just the half.

              Well enabling hidden geometry is really needed to select the half sphere. How did you do the selection?

              I followed your directions (I Enabled the hidden geometry)

              Enable hidden geometry (view-->hidden geometry) then switch to parallel view (camera-->parallel projection) and choose a suitable view. Then pick the select tool-->click and drag from right to left the selection window.

              I've found the problem, you left off that I should only select half the sphere.

              http://s5.postimg.org/g6nfqhcuf/select_half.jpg

              I drew the selection around the whole sphere, thinking it would only select what was facing me, not realizing it would select what was in the back also.

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              • D Offline
                Dave R
                last edited by 25 Jul 2013, 14:59

                I thought the instructions coupled with the illustration were very clear. Hmmm....

                It seems pretty straight forward to me to drag the selection box only around what you want to select. I never thought to tell someone that. I guess I'll be adding that to my training program.

                Etaoin Shrdlu

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                (THERE'S NO PLACE LIKE)

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                M30

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                • S Offline
                  spreadcore
                  last edited by 26 Jul 2013, 02:37

                  @dave r said:

                  I thought the instructions coupled with the illustration were very clear. Hmmm....

                  It seems pretty straight forward to me to drag the selection box only around what you want to select. I never thought to tell someone that. I guess I'll be adding that to my training program.

                  "drag the selection box only around what you want to select."

                  Well technically that is what I did the first time.

                  I was looking at the entire back side of the sphere and that's what I wanted to select. So I drew the selection box around that.

                  I didn't realize till later that the example image was looking at the "side" of the sphere.

                  Oh and this was the model I was doing.

                  http://s5.postimg.org/4ebog81fr/spikebowlingball01.jpg

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