Lines Matching refs:m_lambda
27 btScalar m_mu, m_lambda; // Lame Parameters variable
30 btDeformableNeoHookeanForce() : m_mu(1), m_lambda(1) in btDeformableNeoHookeanForce()
34 m_lambda_damp = damping * m_lambda; in btDeformableNeoHookeanForce()
38 …NeoHookeanForce(btScalar mu, btScalar lambda, btScalar damping = 0.05) : m_mu(mu), m_lambda(lambda) in m_mu()
41 m_lambda_damp = damping * m_lambda; in m_mu()
49 m_E = m_mu * (3 * m_lambda + 2 * m_mu) / (m_lambda + m_mu); in updateYoungsModulusAndPoissonRatio()
50 m_nu = m_lambda * 0.5 / (m_mu + m_lambda); in updateYoungsModulusAndPoissonRatio()
58 m_lambda = m_E * m_nu / ((1 + m_nu) * (1 - 2 * m_nu)); in updateLameParameters()
76 m_lambda_damp = damping * m_lambda; in setDamping()
82 m_lambda = lambda; in setLameParameters()
199 …density += m_lambda * 0.5 * (s.m_J - 1. - 0.75 * m_mu / m_lambda) * (s.m_J - 1. - 0.75 * m_mu / m_… in elasticEnergyDensity()
361 btScalar c2 = (m_lambda * (s.m_J - 1.) - 0.75 * m_mu); in firstPiola()
371 btScalar c3 = (m_lambda * DotProduct(s.m_cofF, dF)); in firstPiolaDifferential()
373 addScaledCofactorMatrixDifferential(s.m_F, dF, m_lambda * (s.m_J - 1.) - 0.75 * m_mu, dP); in firstPiolaDifferential()