Blender 2.82 Cloth Simulation Basics / Every Attribute Explained

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  • Опубликовано: 30 ноя 2024

Комментарии • 185

  • @caiostange2770
    @caiostange2770 2 года назад +1

    thaaaaaank yooooou, i could not figure out for the death of me why my character was all bumpy and spiky. lower shear and higher bending did it. thank yoou

  • @outresler1757
    @outresler1757 9 месяцев назад +2

    Legendary tutorial, this is what must be in documentation

    • @artemtovbaz8452
      @artemtovbaz8452  9 месяцев назад

      Well, it's all mainly based on the documentation, but combined with a practical demonstration, some of my own findings and conclusions)

  • @muhaY-vb5vp
    @muhaY-vb5vp 3 года назад +12

    waiting for 5 million views, i swear this is one of the most important blender toturial

  • @angie4831
    @angie4831 2 года назад +1

    Thanks from the bottom of my heart!!! you just saved me from going crazy

  • @BBaaDDification
    @BBaaDDification 4 года назад +24

    Finally something useful on youtube.

  • @KEEYBLADE
    @KEEYBLADE 5 месяцев назад +2

    This is perfect. I really love the detailed explanation and how you show the result for different values. It's incredibly helpful.

  • @artemtovbaz8452
    @artemtovbaz8452  4 года назад +15

    Thank you for watching my tutorial!
    Please, welcome to comment!

    • @kpatil5053
      @kpatil5053 4 года назад +1

      Bro Please make same video on other simulation..🙂 and thanks for such great information.

  • @alternatebazaarart
    @alternatebazaarart 2 года назад +1

    SO HELPFUL!

  • @andreybagrichuk5365
    @andreybagrichuk5365 19 дней назад

    What an brilliant tutorial, thank you a lot !

  • @OysterQueeen
    @OysterQueeen 4 года назад +45

    this is the most detailed tutorial i've seen you should do more!!!

  • @IanSamit
    @IanSamit 4 года назад +22

    Well I guess it's a matter of taste, but I really appreciate your style of tutorial as opposed to "... er well it's something like er" and "oh sorry, I really should have changed that parameter before I started"! Of course it's worth watching experts narrating their work flow, but I much prefer tutorials that are well planned, concise and easily comprehended. THANK YOU.

    • @artemtovbaz8452
      @artemtovbaz8452  4 года назад +1

      Thank you for your appreciation!

    • @HanSolocambo
      @HanSolocambo 2 года назад

      rehearsing and video compositing are the keys to a perfect tutorial. Sadly 99% of youtubers don't give a f... about that and internet is spoiled with useless content. Or even worse : with ultra useful content but then one has to watch 30 minutes of boring video to extract the 15 seconds of what's actually useful in it.
      Good job Artem did there for sure. Much useful.

  • @00LeP
    @00LeP 4 года назад +18

    I´ve seen hours and hours of 3d tutorial and this one is one of the best I´ve seen. Clear, in depth and no bullshit. Great job!

  • @FireTails357
    @FireTails357 3 года назад +1

    When it comes to the Cloth Simulator. You Explained it the Best

  • @FootyToonz
    @FootyToonz 4 года назад +1

    RUclips doesnt have such a tutorial.. very very detailed

    • @HanSolocambo
      @HanSolocambo 2 года назад

      RUclips HAS such a tutorial... you're on the very webpage of it O.o...
      When you eat a good hamburger in a Burger King, do you also say "Burger King doesn't have such hamburgers ? "

  • @fortunato1957
    @fortunato1957 2 года назад +1

    Well done! Very detailed. I think, I'll pin up some screenshots on the door of my fridge!

  • @studiovega5052
    @studiovega5052 Год назад +1

    you should do more ! and you should have more subscribers!

  • @mobinvaryan7196
    @mobinvaryan7196 2 года назад +1

    really good tutorial thanks

  • @trafficface
    @trafficface 2 года назад +1

    Thank you!!!

  • @bee3D
    @bee3D 2 года назад +2

    wow insanely good tutorial you should make a patreon or something

  • @matthewbrady9342
    @matthewbrady9342 2 года назад +1

    This answered so many questions. Thank you.

  • @Ggthb
    @Ggthb 2 года назад +4

    2 Years old, yet still great and relevant, one of the best tutorials i have seen regarding this topic.

  • @gutozardy
    @gutozardy 3 года назад +1

    i needed to create another list in my RUclips account for this tutorial: Essential tutorialsThank you.

  • @benyafezstudio
    @benyafezstudio Год назад +1

    Thanks!

  • @stripedhyenuh
    @stripedhyenuh 3 года назад +3

    Now this... this is a tutorial. Goes through every function of cloth simulation and shows some practical uses like sewing, but isn't a "make a shirt" tutorial that only shows a step by step on how to achieve one very specific thing that the viewer probably didn't even want to make anyway. I actually understand HOW cloth simulation works after watching this video and I can start making whatever I want

  • @dianehansen5552
    @dianehansen5552 3 года назад +1

    At the moment there's 4 dislikes. Only once in 20 years of watching RUclips have I seen a site that had no dislikes. What is it with some people? This video is well done. Thank you.

    • @HanSolocambo
      @HanSolocambo 2 года назад

      Thumbs down are often from people who don't know how to use a search engine, end up in the wrong place, and express their dumb frustration before moving back to whatever they were looking for.

  • @YoU61690
    @YoU61690 Год назад +1

    Thank you so much! Your explanation is very clear and straightforward 😄😵‍💫

  • @jaredcrown5812
    @jaredcrown5812 3 года назад +1

    Thank you, Subscribed!!

  • @Azeal
    @Azeal 2 года назад +1

    PERFECT tutorial, thank you so much!

  • @thomasfessler1109
    @thomasfessler1109 2 года назад +1

    thanks sharing it

  • @mercy1441
    @mercy1441 3 года назад +1

    Incredible tutorial

  • @محمدمهدیزال
    @محمدمهدیزال Год назад +1

    Thank you for making such a video;Please make more videos like this, like all the physics parts ->rigid body , force field and else

  • @anushriadhikary3985
    @anushriadhikary3985 3 года назад +1

    This is the best cloth simulation video I've come across, thanks mate.

  • @androidgames2930
    @androidgames2930 2 года назад +1

    Useful video,keep it up

  • @jock4803
    @jock4803 4 года назад +1

    You're a god, keeping this as a manual to keep looking back at for all future projects, thank you!

  • @nuke2625
    @nuke2625 Год назад +1

    Thanx a lot brother. The work youve done is commendable.

  • @effernando
    @effernando 3 года назад +1

    Excelent tutorial Artem, It´s a nice mixture of math, physics and software.

  • @thevfxartist8848
    @thevfxartist8848 2 года назад +1

    Helped soo much. THANKS!

  • @Hewlga
    @Hewlga 10 месяцев назад +1

    very informative, you did a lot of work and it was very helpful ❤

  • @bjpcorp
    @bjpcorp 3 года назад +3

    Awesome explainer, loved the technique for sewing the seams! 13:43

  • @nox9079
    @nox9079 2 года назад +1

    Good video!
    Very useful

  • @kritzstudio
    @kritzstudio Год назад +2

    The best tutorial on the subject, thank you very much for your time in making this video so well explained and sharing such valuable information!

  • @c.johnson8143
    @c.johnson8143 3 года назад +1

    awesome thanks

  • @jpgninja
    @jpgninja 3 года назад +1

    THANK YOU. Really good content. you get my SUB!

  • @redaboucetta4693
    @redaboucetta4693 2 года назад

    wow, i love you man that explaination explain more than F1 .

  • @learning3d742
    @learning3d742 3 года назад +2

    This video is worth gold! Super cool 👍

  • @GAURAVSINGH-ez5oe
    @GAURAVSINGH-ez5oe 4 года назад +1

    i learned lot of things through this tut thnx uh so much sir from INDIA

  • @michaelbendavid777
    @michaelbendavid777 3 года назад +1

    thanks for the tutorial, please make more!!...

  • @lamtruong8740
    @lamtruong8740 3 года назад +1

    Thank you for taking time to do this!

  • @michelberg9649
    @michelberg9649 2 года назад +1

    Super ce tuto Merci

  • @MsPortia12
    @MsPortia12 4 года назад +2

    Super helpful visuals for all the settings, thank you!

  • @petrholusa5855
    @petrholusa5855 4 года назад +8

    Wonderful explainer.... I wish whole help documentation would be like this!

  • @jjjj-ul5jq
    @jjjj-ul5jq 3 года назад +1

    really helps me out !!!

  • @khalatelomara
    @khalatelomara 2 года назад +2

    this tutorial is a gem😎 , for the last part about applying the modifier , you can just right click and convert the mesh and you are good 😁, I know it wasn't that direct back then but it was available option in object submenu above

  • @mariocasallas
    @mariocasallas 4 года назад

    Thanks a lot, it´s the first tutorial that actually explains all the parameters of the cloth simulation. Life saver !!!

  • @GabrielSoaresALife
    @GabrielSoaresALife 4 года назад +1

    This video is every thing that i needed. Thanks very much.

  • @ngelitea2539
    @ngelitea2539 6 дней назад

    very detailed explanation! thanks a lot

  • @mo7sin711
    @mo7sin711 3 года назад +1

    thanks, im trying to sim a window curtain blowing, everything worked fine except by frame 150 the curtain freezes in the air -_-

  • @kayreb
    @kayreb 3 года назад +1

    why didnt i find this video sooner...would have saved me about ten hours or frustration :,)

  • @daynight4233
    @daynight4233 3 года назад +1

    Subscribed for all details🤟

  • @FalconWingz88
    @FalconWingz88 4 года назад +1

    this is the video i've been looking for !

  • @РоманНестеренко-ж5ы
    @РоманНестеренко-ж5ы 3 года назад +1

    Thank you very much. Very interesting and informative about tissue simulation in 3D blender!

  • @leonkrimov6955
    @leonkrimov6955 4 года назад +1

    Thank you very much for such a great and detailed explanation.

  • @allyve4200
    @allyve4200 3 года назад +1

    WOW.
    best so far

  • @홍복기-q1t
    @홍복기-q1t 6 месяцев назад +1

    감사합니다.😀

  • @edwardodavinci55
    @edwardodavinci55 2 года назад +1

    Thank you very much! This is very helpful :D

  • @EliasDaoud
    @EliasDaoud 2 года назад +1

    Amazing, thanks

  • @VASOTELVI
    @VASOTELVI 3 года назад +1

    With error to apply cloth modifier stay at needed frame and simply delete shape keys and go back apply cloth - profit!

    • @artemtovbaz8452
      @artemtovbaz8452  3 года назад +1

      Thanks! Hope it helps someone, although you can Apply as Shape Key in newer versions of Blender

  • @risnandarmultimedia5296
    @risnandarmultimedia5296 4 года назад +1

    Thank you. good reference

  • @electricpictures100
    @electricpictures100 3 года назад +1

    Absolutely Brilliant!

  • @beefeebrillate3688
    @beefeebrillate3688 2 года назад +1

    THANK YOU SO MUCH!

  • @FManuel_digital
    @FManuel_digital 4 года назад +1

    Thank you for this tutorial. Great tutorial.

  • @nategreyson6014
    @nategreyson6014 4 года назад +1

    dude finally someone. thanks!!

  • @tomfanman8785
    @tomfanman8785 2 года назад +1

    Thank you so much for this! excellent job

  • @merlinsbeard6043
    @merlinsbeard6043 3 года назад +1

    Thank you

  • @jonah712
    @jonah712 3 года назад +5

    im trying to make a cloth that rests over an object on the floor - i've played around with all these attributes and added collision to all the objects i want it to rest on however the cloth keeps bouncing up and moving off of the objects+floor rather than just falling and staying there. Any idea how i can stop this? I've been trying for ages! Thanks :)

    • @artemtovbaz8452
      @artemtovbaz8452  3 года назад +4

      Hi! This issue might happen by various reasons. They could be: flipped faces, small scale, not enough geometry, not enough friction, collision distance is too high, too complex simulation, ect.

  • @joannawilczynska2560
    @joannawilczynska2560 4 года назад +1

    Thank you for this tutorial! Its really helpful.

  • @fvd14
    @fvd14 3 года назад +1

    Super . thank you very much

  • @PixeLabor
    @PixeLabor Год назад +1

    thank you sooo much!

  • @ek5794
    @ek5794 Год назад +1

    Can you please make a video on how you made two objects?

    • @artemtovbaz8452
      @artemtovbaz8452  Год назад

      Hi! What objects do you mean? Maybe I could explain it in the comments?

  • @jinmunsuen
    @jinmunsuen 4 года назад +5

    Thanks for this in-depth view on the cloth sim settings. It's so useful right now because I'm trying to learn Blender as a Maya user :)

  • @wakegary
    @wakegary 3 года назад +1

    great but run the audio through a limiter or normalize it... very low. fantastic tutorial.

    • @HanSolocambo
      @HanSolocambo 2 года назад +1

      Audio is perfect. Your sound system is the issue here.

  • @randymarsh3432
    @randymarsh3432 3 года назад +1

    blender.stackexchange.com/questions/88807/how-can-i-animate-the-pinning-button-on-off-cloth
    Create a vert group for ALL the verts you will pin at any point in the animation. Then create separate vert groups that only have specific pin points (corner points/grab points etc).
    You then use the VertexWeightMix modifier to deduct chosen verts from your cloth pin group- put you cloth pin group in the A slot. Put one of the individual pin point groups in slot B (e.g right corner verts).
    Then animate the mix stetting from REPLACE (i believe you use the sliders to manipulate this- so all cloth pin verts will stay put if you leave them at 0.0!) to switch to SUBTRACT. This will deduct the right corner verts from the total cloth pin verts in the sim.
    You will need separate VertexWeightMix modifiers for each specific vert groups you wish to remove from the cloth pin group- keep them above the cloth modifier in the stack! Using hooks on the separate vert groups will let you drag it around! should be able to do buttons and even rips with lots of hard work!

  • @aemericenglish2417
    @aemericenglish2417 4 года назад +1

    Thank you so much

  • @lazydog6938
    @lazydog6938 3 года назад +1

    Great!Great!Great!Great!Great!

  • @kalmodoom
    @kalmodoom 4 года назад +1

    This is a very good tutorial! Thank you!

  • @COLMVFAHY
    @COLMVFAHY 3 года назад +1

    Can you please comment on the optimal scale and size of a meshes for baking cloth... I ahve noticed that if the mesh is very small the cloth sim will not work - the bigger the mesh the better the sim.. but I'm not sure whats is going on .. because when the mesh is is very big the pins constrain stops working

    • @artemtovbaz8452
      @artemtovbaz8452  3 года назад

      I scaled a normal person figure 20 times. I think, it is more than enough ;) it's almost like scaling the default cube 20 times. Try keeping your values within these boundaries and it should be fine.

  • @kvakduck3278
    @kvakduck3278 3 месяца назад

    thank you so much friend

  • @peacearchitect5476
    @peacearchitect5476 3 года назад +1

    thank you so much, it helped me a lot.

  • @WaBotix
    @WaBotix 3 года назад +1

    very helpfull, thank you

  • @donrivas8074
    @donrivas8074 2 года назад +1

    Great in depth tutorial but I have one question hopefully you or somebody can answer this I've been trying to get all my animations to a fine point but keeping the buttons on a jacket or a shirt is a pain in the well you know anyway if you have any suggestions on the matter please I would love to hear about it cause I need my buttons to stay not fall off lol

    • @artemtovbaz8452
      @artemtovbaz8452  2 года назад

      Hi! Try parenting buttons to cloth's vertices. Select your cloth. Switch to Edit Mode. Select a group of vertices near one of your buttons. Switch to Object Mode. Select your button then the cloth. Ctrl + P, Set Parent To Vertex (Triangle). This way the button should follow the cloth.

  • @xrarchitect
    @xrarchitect 2 года назад +1

    You are my hero

  • @BlenderVision
    @BlenderVision 4 года назад +4

    I had absolutely no clue that there where cloth presets. Thank you for this tutorial :D

  • @gottagowork
    @gottagowork 3 года назад +1

    I have managed after considerable trouble to create my own ringed curtain. My real curtain is folded at the top where the rings are (and also at the bottom and sides), which I assume provide additional stiffness/integrity to keep the rings and to prevent fabric threads to come apart. I used hooks to control the position of each ring along the pole - first extending out (closed curtains) then contracting back in (open curtains), with the pole and window/wall as collision objects. Rings were flat part of the curtain mesh with a bumpmap to give the impression of curvature but causes topology issues. I didn't model the edge folds. Question; how would you go about simulating such a curtain in order to get bends but at the same time preventing the top part above the rings from falling over on itself? I ended up putting the top verts in a separate vertex group and using the various extras at the bottom, but it does create visible kinks that I'm not happy with. For the pole collision to work I had to scale it up a huge amount to prevent explosions. In a lot of tutorials people are happy with the material completely folding over back on itself. So yeah, how'd you do it?
    An example of the structure:
    loftystyles.com/wp-content/uploads/Metallic-Waterfall-Curtains-Set-of-2-Shimmery-Jacquard-Semi-Sheer-Curtain-Panels-Pair-Grey.jpg

    • @artemtovbaz8452
      @artemtovbaz8452  3 года назад +1

      Hi! Sometimes it makes sense to go around using cloth simulation only, especially if you just need a static image. I would simplify the process as much as possible, if using cloth simulation was too elaborated decision for this task. I would make the folds like shown in many other curtain tutorials, then simply booled the holes and added the rings. I believe the process should be more abstract as it is done in a virtual environment, so keep it simple, model when necessary, combine methods. Sometimes I pre-model the shape of my cloth piece and then go for cloth simulation. It is also a good idea to use cloth simulation after cloth simulation in some cases, as well.

    • @gottagowork
      @gottagowork 3 года назад +1

      ​@@artemtovbaz8452 The steps I ended up with that I think I'll stick with is:
      1. Model the hole and surrounding cloth, but do it at much higher scale to avoid collision issues with the pole. This "have to scale" thing is one of my pet hates with Blender.
      2. Extrude the top once and the bottom as many times as needed to get the length.
      3. Assign material to fabric and ring, and UV the ring as a strip of quads filling the full UV space. Fake bulge be U or V axis.
      4. Assign ring verts to a pin group, possibly include the fabric above it as well for the simplest method to avoid it folding over itself.
      5. Extrude the fabric sideways, clone and rotate as needed to get a full section with 60 deg rotated holes, then array the whole thing. Copy the object at this point for configurational changes.
      6. Apply the array and merge, then delete the parts outside the holes.
      7. Select by material the fabric (only). Then UV the fabric and fill the entire UV space. This allows use of simple UV math to fake fold borders in the material (if U0.98 then fold material etc).
      8. Select pin verts and hide the rest. Ctrl+h to create hook, R to repeat for each ring section.
      9. Create loc+rot keyframe for all the hooks. Repeat for extended and contracted parts.
      10. Add the hanging pole as a separate collision object in the middle of the now angled holes, no friction. This is not for the rings, but for the cloth to not fold across the pole. Add wall and floor collision objects as needed.
      11. Add cloth modifier and run the simulation. Might want to add a little bit of randomness to the fabric first.
      12. As for shading of a see-through curtain, I go with around 80/20 Diffuse/Translucency with hole mask Transparency (with view angle considerations to account for no thickness) for the main fabric and only Diffuse for the borders. I stay away from Principled as it doesn't have any diffuse transmission properties.
      13. If needed, some preferred method for sculping in additional folds and details.

    • @artemtovbaz8452
      @artemtovbaz8452  3 года назад

      @@gottagowork Thanks for sharing your method! You could make a video tutorial out of it ;) I hope it come in handy for other artists.

    • @gottagowork
      @gottagowork 3 года назад +1

      ​@@artemtovbaz8452 Yeah, that's now my modified approach; plane circle for the "flat ring", extruded into surrounding geometry. Apply an array and animate hooks to control the rings which are also the pins. Goes from flat to folded, then back to extended but now with varying angles and positions. Bake the cloth, grab a few interesting frames as shape keys and get rid of the cloth modifier. Touch up as needed, particularly you want to be able to see through the rings. Any of these shape keys will now be the basis for more intricate cloth simulations involving collisions, wind etc, where the top part is weight painted pin. If you need solid rings, you can copy the faces out by material and extrude them in both directions.
      I'm curious, does anyone else use a hint of Translucency shader mixed in, on curtains? Here is a see-through curtain that also provides shadows on the backside - which means it would also bleed colors into the room:
      c0.wallpaperflare.com/preview/186/922/321/united-states-chantilly-window-shadow.jpg
      Subsurface scattering (Principled) with solidify does not light up the room, only the curtain.

  • @ayoungwolf
    @ayoungwolf 4 года назад +1

    Thank you!

  • @channelname8623
    @channelname8623 9 месяцев назад

    i wonder what they did with the pressure factor setting. its no longer in the same place.

  • @cyberghost7777
    @cyberghost7777 4 года назад +3

    Thank you very much for this video! I'm working a short animation video and I was struggling with an issue where the cloth material would keep on jittering/vibrating after landing on the object surface. Scaling everything up seemed to fix the problem. Also made my simulation more realistic with the drapes!

    • @artemtovbaz8452
      @artemtovbaz8452  4 года назад +1

      Thank you, I'm happy it's been helpful for you!

    • @cyberghost7777
      @cyberghost7777 4 года назад

      ​@@artemtovbaz8452 Hey man, thanks a lot again. I was going through my work and just remembered about this video. I'd love to share what I did with this explanation video :)
      www.behance.net/gallery/105160435/The-Luxurious-Reincarnation-Short-Film

  • @HanSolocambo
    @HanSolocambo 2 года назад +1

    Those explanations of physical properties are very well paced and illustrated. Thanks a lot for the time you spent rehearsing and properly video compositing all that. Very, very useful ;)

  • @MrGravicaper
    @MrGravicaper Год назад +1

    Hello! Please tell me how to make the simulation of the fabric default on the desired frame.

    • @artemtovbaz8452
      @artemtovbaz8452  Год назад +1

      Hi! Could you, please, be more specific? Anyway, you'll have to bake the whole simulation up to that frame.

    • @MrGravicaper
      @MrGravicaper Год назад

      @@artemtovbaz8452 Thanks for the answer! Probably the automatic translation was incorrect. I'll try to write in more detail so that you can guess from the context. I'm simulating stylized hair geometry with cloth. I need to start the simulation from the first frame. But the hair (clothes simulation) has not yet had time to fall on the shoulders and take the desired shape. They take this shape around frame 60. I want the hair shape at frame 60 to be ready for simulation at frame 1. Maya has a handy feature - negative frames. I could set the frame to -60 and by the first frame I would already have the geometry ready to simulate clothes for rendering. I found a forced solution - move the animation 60 frames to the right so that the hair has time to fall. But it seems there is an option in Blender to make such a frame the default. Although maybe I'm wrong and this refers to the effect of the destruction of geometry.

    • @artemtovbaz8452
      @artemtovbaz8452  Год назад +1

      As far as I understand your issue, you could simulate your cloth mesh until it gets the desired shape and apply cloth simulation, then start a new cloth simulation at frame 1. but if you need to start a simulation at any other frame, just set the first frame for bake property in cloth simulation modifier. @@MrGravicaper

    • @MrGravicaper
      @MrGravicaper Год назад

      @@artemtovbaz8452 The problem is that when I apply the simulation, for some reason the hair is detached from the body. Although I pinned them with a pin. Let me remind you that the simulation of clothes is in fact - the hair is a stylized cartoon geometry. I thought that there is an option - to make the shape of the hair that suits me (on frame 60) as a default and from it, as from the first frame, start the simulation, which will go to the render.
      I'll try to understand your advice, thank you very much for the answer. If it doesn't work out, I'll just move the fbx frames simulating a timeline shift like in Maya.

    • @artemtovbaz8452
      @artemtovbaz8452  Год назад +1

      I guess if the hair is a separate mesh, and you apply the simulation, it becomes a regular mesh. So it might be that you need to re-attach it and start a new simulation, or find a better solution for attaching it for the first time. Sorry, if I'm missing the point)@@MrGravicaper

  • @Colabry
    @Colabry 3 года назад +1

    great video :) but i dont understand the damping function :D

    • @artemtovbaz8452
      @artemtovbaz8452  3 года назад

      Dumping sort of decreases value fluctuations. Hope it helps :)

  • @acmtsing
    @acmtsing 4 года назад +2

    I think the internal spring part, you highlighted the tension and compression wrong, they were under Damping. :D Or I am wrong. And where do you set the pinpoint to sew the T-shirt, yours is the best result I have seen. The size of the model is increased 3x from the real human size?

    • @artemtovbaz8452
      @artemtovbaz8452  4 года назад +3

      Hi! Thank you for noticing! It really should be Tension and Compression under Internal Springs, not Damping ;) At least, the numbers are correct, I guess :D
      I don't set any pin points in the first example of sewing, the human model is scaled 20 times from the real size.
      I set pin points in another example, but just to pull the T-shirt down a bit.
      The thing is there are at least two major points you have to consider for sewing or cloth simulation in general:
      1. the topology should consist of equal sized faces/poligons (squares), or about that. There are exceptions, of course.
      2. the size should be scaled few times more from real.
      Please, check the linked file in the description to examing the sewing part.