From c4e73ec8a74600e568233bcedef215fc27db0144 Mon Sep 17 00:00:00 2001
From: Xuchen Han <xuchenhan2015@u.northwestern.edu>
Date: Mon, 18 Nov 2019 14:47:57 -0800
Subject: [PATCH] Add faces to volumetric objects in deformable demos

---
 examples/DeformableDemo/Pinch.cpp                | 1 +
 examples/DeformableDemo/VolumetricDeformable.cpp | 1 +
 2 files changed, 2 insertions(+)

diff --git a/examples/DeformableDemo/Pinch.cpp b/examples/DeformableDemo/Pinch.cpp
index 7c966cc4d..ed811a417 100644
--- a/examples/DeformableDemo/Pinch.cpp
+++ b/examples/DeformableDemo/Pinch.cpp
@@ -314,6 +314,7 @@ void Pinch::initPhysics()
         psb->m_cfg.kDF = 2;
         psb->m_cfg.collisions = btSoftBody::fCollision::SDF_RD;
         getDeformableDynamicsWorld()->addSoftBody(psb);
+        btSoftBodyHelpers::generateBoundaryFaces(psb);
         
         btDeformableMassSpringForce* mass_spring = new btDeformableMassSpringForce(1,0.05);
         getDeformableDynamicsWorld()->addForce(psb, mass_spring);
diff --git a/examples/DeformableDemo/VolumetricDeformable.cpp b/examples/DeformableDemo/VolumetricDeformable.cpp
index 7eaf9aa37..1f23071d4 100644
--- a/examples/DeformableDemo/VolumetricDeformable.cpp
+++ b/examples/DeformableDemo/VolumetricDeformable.cpp
@@ -220,6 +220,7 @@ void VolumetricDeformable::initPhysics()
         psb->m_cfg.kCHR = 1; // collision hardness with rigid body
         psb->m_cfg.kDF = 0.5;
         psb->m_cfg.collisions = btSoftBody::fCollision::SDF_RD;
+        btSoftBodyHelpers::generateBoundaryFaces(psb);
         
         btDeformableGravityForce* gravity_force =  new btDeformableGravityForce(gravity);
         getDeformableDynamicsWorld()->addForce(psb, gravity_force);