### what is the algorithm used for btSofybody?

Posted:

**Tue Apr 25, 2023 2:20 pm**It seems the btSoftbody use the PBD (position based dynamic) algorithm. But, it is different from the origina one (https://matthias-research.github.io/pag ... sedDyn.pdf).

For example, the stiffness is used as:

l.m_c0 = (l.m_n[0]->m_im + l.m_n[1]->m_im) / m.m_kLST;

Is there any document to describe more details? Or where can I find a paper to decribe the used algorithm?

Any suggestion is appreciated~~~

For example, the stiffness is used as:

l.m_c0 = (l.m_n[0]->m_im + l.m_n[1]->m_im) / m.m_kLST;

Is there any document to describe more details? Or where can I find a paper to decribe the used algorithm?

Any suggestion is appreciated~~~