Yesterday, 04:48 AM
The cylinder representation not a accurate portrait of the upper arm.
The Red line represent the tension you think would happen(note i didn't bother doing both side the same principle apply due to the mirror of the arm pose). A fabric that sit on top of one cylinder vertically and one horizontally might in a specific scenario i won't illustration for time sake. The fabric in the case that is in front of us will not create this diagonal tension point it will simply conform first to the vertical nature of the cylinder and it will reach the middle of the arm since it a sleeve it will then create a ''new tension point'' the rest of the fabric will then sit on the horizontal portion of the forearm.
The green line is a much more approximative representation of how the fabric outline would look for the side that working against the force of gravity
The thing with cloth is that you need to study it to understand how it behave... i can give you reference after reference if you don't understand thing like gravity, tension point ,weight, balance or if i do paint over it not sure to fix your problem you need the principle of why cloth behave like it does. This the point in imaginative work where reference will not save you this the point where you would be better setting your own scene in real life and understand the real life propriety in a personal manner.
The Red line represent the tension you think would happen(note i didn't bother doing both side the same principle apply due to the mirror of the arm pose). A fabric that sit on top of one cylinder vertically and one horizontally might in a specific scenario i won't illustration for time sake. The fabric in the case that is in front of us will not create this diagonal tension point it will simply conform first to the vertical nature of the cylinder and it will reach the middle of the arm since it a sleeve it will then create a ''new tension point'' the rest of the fabric will then sit on the horizontal portion of the forearm.
The green line is a much more approximative representation of how the fabric outline would look for the side that working against the force of gravity
The thing with cloth is that you need to study it to understand how it behave... i can give you reference after reference if you don't understand thing like gravity, tension point ,weight, balance or if i do paint over it not sure to fix your problem you need the principle of why cloth behave like it does. This the point in imaginative work where reference will not save you this the point where you would be better setting your own scene in real life and understand the real life propriety in a personal manner.