Sewing in expansive fabric
Hello!
I am a new CLO user, trying model a jacket I designed to turn into a tent. This design relies on expanding fabric. I created an accordion pleat but for some reason am unable to successfully incorporate it into my model. Is there any way in which I can sew this fabric in as a fully compressed accordion? Below shows the errors I have gotten in my attempts to incorporate the fabric.
This is kind of the final look I am going for:
I made slight design changes from this render. I went with the accordion pleat instead of the origami magic ball fold because the fabric only needs to expand in one direction, and changed the proportions of the graphic break ups.
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You had to freeze another part
Separately simulate the harmonica.
Then sew or activate the seams on the harmonica and simulate.
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Thank you Vad! I really appreciate this! I did do this, and for some reason it is not neatly fitting within the two lines, is there any way of making sure it is neat without losing the length of the fabric?
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Then sew or activate the seams on the harmonica and simulate.
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Why do you make an accordion so wide. A ratio of 1 to 3 will be enough
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daliaelmo, Vad's question is really interesting. It had me wondering of you only want a visual representation of the garment with its expandable piece tucked in, or are you trying to prove the physical concept with modeling and 3D simulation.
If you are only trying to visualize the concept, then you don't need that many fabric crammed into a very small space in your garment. I would only do a few pleats as there is no way you can count if the pleats correspond to the expanded version of the fabric while folded.
If you are trying to simulate the behavior then there is some limitations as to how many pleats you can hold in one small space. The particle distance and the collision detection settings will limit that amount. There is only so much polygons you can have there before making your simulation unstable or freeze your computer. GPU simulation is more powerful, but in my experience, also more unstable when it comes to polygons being that close together.
Let us know what your goal is so we can help you further,
Pablo
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Hi Pablo,
I am trying to do more than visualize the concept. I am more so trying to prove the concept with 3D simulation. Ideally, the end product will be an animation deconstructing and reconstructing as a tent.
Once I figure out how to incorporate the expansive fabric, I will incorporate the hard components ( zippers, clips, and poles). I played around with the fold strength and managed to get a wide fabric to condense pretty heavily, but it still does not not neatly tuck itself into the space I created.
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Dalialemo, from my experience with CLO and other CG 3D software (Blender, 3DS Max, Substance Painter and Designer, etc.) I don't think you can get a physically correct result of the expansion of the fabric within a garment to a tent.
THE PHYSICALLY CORRECT WAY
In CLO you can simulate how gravity or a vertically down force pulls a fabric and drapes over a solid object (avatar). The more polygons you use, the more real the simulation, and the more resources (time and CPU/GPU computing) required. That being said, turning your collapsed fabric into a tent require more vectors (force magnitude and direction) than just gravity. How you can simulate those forces in CLO are out of the scope of the software. I believe the most you can do is to have a rigged avatar that would move, pulling your fabric in other directions besides vertical gravity, but I don't think there is a way to control the vector's magnitude (force).
THE CONCEPTUAL WAY
This will require animation and recording separate steps of the fabric unfolding. Using this way you can try and visualize the concept, although you wouldn't prove is physically possible or that it will react the same way. You could even collapse the fabric using less pleats just to visualize it and "cheat" the amount of fabric being unfolded. I am not an expert in animation with CLO (or any other software for that matter), but I think that if you do it step by step in CLO it can be done.
I would suggest you have a look at Houdini FX for cloth simulation. It is a CG and FX industry standard which has some physically correct simulations. Have a quick look here:
https://www.youtube.com/watch?v=ARXKNq16jDk
I hope this is useful for you.
Pablo
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Pablo,
Yes! It really is!! Thank you very much! I think I have an idea of where to go with this. I appreciate your help!
Dalia
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This is what I currently have, I am trying to add straps and buckles over the expansive portion right now so I can get some "jacket mode" renders. Do you have any tips for this?
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