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What do you think of that hand?

Forum Archive › What do you think of that hand?

Viewing 14 posts - 1 through 14 (of 14 total)
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  • November 1, 2022 at 12:51 am #15552
    maxcady
    Participant

      I did this piece about 10 times for a total of more than 2 days. I learned a lot and found out different technique that the teacher don’t use cause I have my own style to create meshes that also works for me. 

      Don’t worry about the hole near the thumb. We don’t see the inside of it so it’s not perfect and it’s ok. 

      Hand

      November 1, 2022 at 6:41 am #75963
      Martin Bergwerf
      Participant

        Hi @maxcady ,

        Some things that I noticed immediately:

        These Faces for instance:

        Hand_1.png

        Let’s isolate them to get a better view:

        Hand_2.png

        Pay special attention to the selected N-gon and it’s ‘center’ (the white dot); the Catmull-Clark algorithm (Subsurf Modifier) depends heavily on that center point.

        If we now enable the Subsurf (one level only here), we get this mess:

        Hand_3.png

        In general, when using Subsurf, corners, especially concave corners need holding Edges. This crazy geometry is also visible in Object Mode:

        Hand_5.png

        Furthermore, I am not happy with this kind of non-manifold geometry (even apart from the extrusion having no thickness):

        Hand_4.png

        I might find more when I look longer, but these rpoblems need ‘immediate’ fixing 😊

        Really like the fingers (and thumb) though 👍🏻

        November 1, 2022 at 7:00 am #75964
        Omar Domenech
        Participant

          Spikey came back from the Blender conference in full swing. It’s like he absorbed all that Blender energy and some Amsterdam coffee.

          November 1, 2022 at 1:06 pm #75965
          maxcady
          Participant

            how do you isolate the selected vertices and how can you see the center white point?

            I really wonder how I left the faces with no thickness….

            Ok. I just restart all over with my new skills. It may be not perfect but I think it’s better. please tell me if there is a slight mistake, as I do not get tired. here

            November 1, 2022 at 2:22 pm #75966
            Omar Domenech
            Participant

              If you hit H, any face or vertices you have selected will get hidden. And if you have faces or vertices selected and you want to hide things that are not selected, you hit Shift + H and everything that is not selected will go away. To bring stuff back you hit ALT + H

              November 1, 2022 at 5:24 pm #75967
              maxcady
              Participant

                Shift H. Cool. I gave another try, I deleted the hand and I did model the hand once more. Did you look at the result? It’s in my upper comment. 

                November 2, 2022 at 2:13 am #75968
                Martin Bergwerf
                Participant

                  @maxcady

                  those ‘centers’ are an Overlay and can be enabled here:

                  Center Dots.png

                  They are the calculated average of the Vertices that make the Face and therefore can even lie outside of the Face as you can see.

                  With Catmull-Clark, (in simple cases like this) each Edge of a Face is subdivided once to make new Vertices and each original Vertex shifts halfway towards that ‘center point’. The complete algorithm is slightly more complicated, but this might already help understanding some of the behavior of the Subsurf Modifier.

                  November 2, 2022 at 2:33 am #75969
                  Martin Bergwerf
                  Participant

                    As for the model; much better!

                    There is one area, where you have a lot of Double Vertices:

                    Doubles.png

                    and, although some of them are intentional and okay, there are a few that cause weird shading and geometry:

                    Doubles_1.png

                    and I’m not sure what I am looking at.

                    If this is meant to be like this, you can leave it as is of course.

                    The rest of the hand looks great to me; another job well done Max!

                    November 2, 2022 at 9:51 am #75970
                    Omar Domenech
                    Participant

                      That’s what I found also. If in vertex mode you select everything and with M you merge by distance, you’re get 32 vertices merged. That is a lot. That means you have 32 double vertices probably causing problems. Get rid of them. 

                      November 2, 2022 at 8:01 pm #75971
                      maxcady
                      Participant

                        I think I know why. It’s because separated the hand in 2 parts to create some effect then I merged them together. The effect that I wanted to create has disapeared. And I didnt notice it! The question is why the effect has disapeared??? 

                        This is the hand without the effect: Here

                        I succeeded to make that effect: effect

                        I soon as I merge them with CTRL J, it creates problems

                        This is the unmurged version: unmerged

                        November 3, 2022 at 3:34 am #75972
                        Martin Bergwerf
                        Participant

                          Hey Max,

                          when I take your unmerged version and join the two parts together with CTRL+J, it works perfectly fine:

                          Merged.png

                          And the hand looks great as you can see.

                          I don’t know what you did wrong…

                          November 3, 2022 at 5:16 am #75973
                          maxcady
                          Participant

                            Well, LOL! It is because I deleted the hand and I remade it all over again. Sometimes, there is a mistake we did and we don’t know how it happened. Then we start all over, and everything’s working fine.

                            November 3, 2022 at 11:39 am #75974
                            maxcady
                            Participant

                              I will enable the white dot center all the time to understand the mechanic of Blender topology. 🙂

                              November 21, 2022 at 7:09 am #75975
                              Diego Krupa
                              Participant

                                nice 🙂

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