remove default radius

examples/testbed/tests/pinned_cloth.h

@@ -39,7 +39,6 @@ public:
 
 		b3ClothDef def;
 		def.mesh = &m_rectangleClothMesh;
-		def.radius = 0.05f;
 		def.density = 0.2f;
 		def.structural = 10000.0f;
 		def.damping = 0.0f;

examples/testbed/tests/shirt.h

@@ -53,7 +53,6 @@ public:
 
 		// Create cloth
 		b3ClothDef def;
-		def.radius = 0.2f;
 		def.mesh = &m_shirtClothMesh;
 		def.density = 0.2f;
 		def.structural = 10000.0f;

examples/testbed/tests/table_cloth.h

@@ -40,7 +40,6 @@ public:
 
 		b3ClothDef def;
 		def.mesh = &m_rectangleClothMesh;
-		def.radius = 0.05f;
 		def.density = 0.2f;
 		def.structural = 10000.0f;
 		def.damping = 0.0f;

examples/testbed/tests/tension_mapping.h

@@ -75,7 +75,6 @@ public:
 
 		b3ClothDef def;
 		def.mesh = &m_rectangleClothMesh;
-		def.radius = 0.2f;
 		def.density = 0.2f;
 		def.structural = 10000.0f;
 
@@ -157,16 +156,16 @@ public:
 			g_draw->DrawSolidTriangle(n2, v1, v3, v2, color);
 		}
 
+		if (m_clothDragger.IsSelected() == true)
+		{
+			g_draw->DrawSegment(m_clothDragger.GetPointA(), m_clothDragger.GetPointB(), b3Color_white);
+		}
+
 		extern u32 b3_clothSolverIterations;
 		g_draw->DrawString(b3Color_white, "Iterations = %u", b3_clothSolverIterations);
 
 		float32 E = m_cloth->GetEnergy();
 		g_draw->DrawString(b3Color_white, "E = %f", E);
-
-		if (m_clothDragger.IsSelected() == true)
-		{
-			g_draw->DrawSegment(m_clothDragger.GetPointA(), m_clothDragger.GetPointB(), b3Color_white);
-		}
 	}
 
 	static Test* Create()

include/bounce/dynamics/cloth/cloth.h

@@ -52,7 +52,6 @@ struct b3ClothDef
 	{
 		mesh = nullptr;
 		density = 0.0f;
-		radius = 0.05f;
 		structural = 0.0f;
 		bending = 0.0f;
 		damping = 0.0f;
@@ -61,11 +60,6 @@ struct b3ClothDef
 	// Cloth mesh 
 	b3ClothMesh* mesh;
 
-	// Radius
-	// This should be a small value. It can be used for correcting visual artifacts when 
-	// the masses are colliding against a solid.
-	float32 radius;
-
 	// Cloth density in kg/m^3
 	float32 density;
 
@@ -91,13 +85,13 @@ public:
 	// Create a particle.
 	b3Particle* CreateParticle(const b3ParticleDef& def);
 
-	// Destroy a particle
+	// Destroy a given particle.
 	void DestroyParticle(b3Particle* particle);
 
 	// Create a force.
 	b3Force* CreateForce(const b3ForceDef& def);
 
-	// Destroy a force.
+	// Destroy a given force.
 	void DestroyForce(b3Force* force);
 
 	// Perform a ray cast with the cloth.

src/bounce/dynamics/cloth/cloth.cpp

@@ -31,7 +31,7 @@
 
 #define B3_FORCE_THRESHOLD 0.005f
 
-#define B3_CLOTH_BENDING 1
+#define B3_CLOTH_BENDING 0
 
 #define B3_CLOTH_FRICTION 1
 
@@ -271,6 +271,15 @@ b3Particle* b3Cloth::CreateParticle(const b3ParticleDef& def)
 
 void b3Cloth::DestroyParticle(b3Particle* particle)
 {
+	for (u32 i = 0; i > m_mesh->vertexCount; ++i)
+	{
+		if (m_mesh->particles[i] == particle)
+		{
+			m_mesh->particles[i] = NULL;
+			break;
+		}
+	}
+
 	m_particleList.Remove(particle);
 	particle->~b3Particle();
 	m_particleBlocks.Free(particle);

src/bounce/dynamics/cloth/spring_force.cpp

@@ -94,12 +94,12 @@ void b3SpringForce::Apply(const b3ClothSolverData* data)
 	b3SymMat33& dfdx = *data->dfdx;
 	b3SymMat33& dfdv = *data->dfdv;
 
-	f[m_p1->m_solverId] += m_f;
-	f[m_p2->m_solverId] -= m_f;
-
 	u32 i1 = m_p1->m_solverId;
 	u32 i2 = m_p2->m_solverId;
 
+	f[i1] += m_f;
+	f[i2] -= m_f;
+
 	b3Mat33 Jx11 = m_Jx;
 	b3Mat33 Jx12 = -Jx11;
 	b3Mat33 Jx21 = Jx12;