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Issue with my model

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Viewing 12 posts - 1 through 12 (of 12 total)
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  • June 25, 2025 at 12:11 am #20352
    Guy Grossfeld
    Participant

      So i’m working on the tire model. I’m having this pinching that appears from the bake. Now the first one is how it turned out, and second one tried to fix the model but not sure it work. Tried the experimental mode that was put in substance painter. Well least the tire is coming along well.question.png

      June 25, 2025 at 7:56 am #95575
      Omar Domenech
      Participant

        Hello Wolfer. I think the only one that knows Substance and baking around here is Chunck. Lucky for you Chunck is great and has like a calm voice and is probably going to be like oh no a citizen needs my help! I’m on my way! Instead of, oh great another citizen needs my help, what a surprise, yippee. I’ll just link him up. 

        June 25, 2025 at 10:10 am #95576
        Chunck Trafagander
        Participant

          I do believe it is related to the topology of the high-poly (maybe even low-poly) models, but hard to say exactly. Would you be able to post a screenshot of:

          – Wireframe for the High and low poly models

          I’m hoping that will help give me a couple answers! 🙂 

          June 25, 2025 at 11:15 am #95577
          Guy Grossfeld
          Participant

            Sure np. Here you go. The left is high poly and right is low poly in blender

            question.png

            June 25, 2025 at 11:24 am #95578
            Martin Bergwerf
            Participant

              Hi @wolfer ,

              That might just be too low poly….notice how the problems are exactly where the Edge Loops are.

              June 25, 2025 at 11:33 am #95579
              Guy Grossfeld
              Participant

                So I should see about adding in more edges then on my low poly am i correct

                also when i baked, i get this strange issue on the ambient occulusion from it. what is that.question.png

                question.png

                June 25, 2025 at 11:54 am #95580
                Chunck Trafagander
                Participant

                  My suspicion is that it is a result of the topology of the high-poly. You may need to go in and pull some of those edge loops a little wider in areas where you want a flatter face. It may be possible that the curvature of the faces is really pronouncing that pinch more than it would otherwise. It is a bit of a tricky area, as you want those edge loops for the creased area of the elevated tread part, however maybe a couple of edge slides will do the trick there. Maybe just do a couple and compare with a bake to see if that helps alleviate the problem before fully committing! 

                  RE: Ambient Occlusion

                  That looks like it may be an issue with pixel padding, I believe SP calls it dilation. In the baking dialog window, what is the Dilation slider set to? 🤔

                  June 25, 2025 at 12:37 pm #95581
                  Guy Grossfeld
                  Participant

                    i’ll look into that for the high poly. see about fixing the edges up or even adding in a few more since it the high poly

                    Oh i didn’t touch that but here is what i have it set to.

                    diluation.png

                    June 25, 2025 at 4:17 pm #95582
                    Chunck Trafagander
                    Participant

                      It may not be the final solution, but I do think spreading out those edge loops will help alleviate that area for sure. Sometimes the curvature of the model really accentuates those edges pinching together, it can be a pain. 

                      Interesting, it looks like dilation should be fine. Is there any overlap in the high poly mesh at that area? It does look like it could be the area where the array modifier connects back onto itself? I’m sure you’ve already done that cleanup process, I’m just throwing it out there in case it is worth a second look. Truth be told I’m not too sure what it could be, you are only seeing that appear in the AO bake?

                      June 25, 2025 at 4:36 pm #95583
                      Guy Grossfeld
                      Participant

                        Yes well happy to say i fixed it. on the high poly i added more edges both horizontally and vertical. I mean it the high poly so it can higher since it will be bake. As for the other issue i fixed it as i went into the Ambient occulsion settings and messed around with the secondary rays and it min occluder settings.Illustration.png

                        June 26, 2025 at 7:17 am #95584
                        Omar Domenech
                        Participant

                          Chunck is like the Superman of baking. Flying around the internets spotting who needs help and saving them from certain hair pulling from the frustration. Now people get to keep their hair and barbers all around the world get to cut it, now they get to make a living as well. So even barbers got helped today, thanks Chunck 🤙🏼

                          June 26, 2025 at 10:28 am #95585
                          Chunck Trafagander
                          Participant

                            Fantastic, I’m glad we were able to figure it out! It is looking great, I cannot wait to see the final result. 😁

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