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3.5.0 Alpha version of Blender

Forum Archive › 3.5.0 Alpha version of Blender

Viewing 7 posts - 1 through 7 (of 7 total)
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  • December 11, 2022 at 5:37 pm #15731
    Jean Claude de La Ronde
    Participant

      Fair Warning

      I’m doing the Object modifiers lessson.
      Symetry doesn’t work unless you check the box : Topology Mirror in the options dropdown menu where there’s the XYZ icons on the rop right of the 3D viewport.

      December 12, 2022 at 3:22 am #76736
      Martin Bergwerf
      Participant

        There is no difference in the Edit Mode Mirroring in 3.5, compared to earlier versions.

        If a Vertex is slightly moved on one side of the Mesh, compared to that ‘same’ Vertex on the other side, Then Symmetry won’t work for that Vertex. If the Topology is still the same on each side of the Mesh, it might work with Topology Mirror enabled.

        But I wouldn’t rely on it; use the Mirror Modifier instead.

        December 12, 2022 at 3:26 am #76737
        Martin Bergwerf
        Participant

          Just in case you are wondering what Topology is; think of it like this, if you only Move Vertices around, you are not changing the Topology of a Mesh.

          December 12, 2022 at 7:24 am #76738
          Omar Domenech
          Participant

            I got more confused with that definition of topology. I thought topology was how vertices were placed in edit mode, and if I moved vertices around I would change the topology of the mesh. Explain it to me like I’m 5 please.

            December 12, 2022 at 8:42 am #76739
            Martin Bergwerf
            Participant

              I don’t think I can explain it to a 5 yr old…

              Simply said, you were wrong. Moving Vertices in Edit Mode doesn’t change the Topology. CG Meshes are ‘made of rubber’ and can be deformed, streched and so on. That doesn’t change the Topology:

              Topology.png

              Like In Sculpt Mode. Sculpting by default doesn’t change the Topology of a Mesh, only it’s shape.

              Unless you activate Dynamic Topology (changes the Topology dynamically), or use a Multiresolution modifier.

              December 12, 2022 at 8:52 am #76740
              Omar Domenech
              Participant

                Ah I see what you mean. You see, you did explain it to me like I’m 5. 

                So the topology is more like the orderly fashion the vertices are in. It’s like what molecules are to an element. H2o is H2o, it’s two hydrogen atoms and one oxygen atom, and yet you can have water in a glass and it will take the shape of the container. The shape will change but it’s still H2o. 

                December 12, 2022 at 9:09 am #76741
                Martin Bergwerf
                Participant

                  With Topology Mirror enabled, Blenderr can find the corresponding Vertex on the other side of the monkey:

                  Topology_1.png

                  Topology_2.png

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