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maintain the upper triangle of A, external particle/force creation/destruction, particle force abstraction, testbed update

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This commit is contained in:
Irlan
2018-05-30 11:34:41 -03:00
parent dba5ffbe06
commit caef3fede8
21 changed files with 1657 additions and 1088 deletions
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85
examples/testbed/tests/tension_mapping.h
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@@ -58,32 +58,26 @@ static inline b3Color Color(float32 x, float32 a, float32 b)
class TensionMapping : public ClothTest
{
public:
TensionMapping()
TensionMapping() : m_rectangleGarment(5.0f, 5.0f)
{
m_gridClothMesh.vertexCount = m_gridMesh.vertexCount;
m_gridClothMesh.vertices = m_gridMesh.vertices;
// Generate 2D mesh
m_rectangleGarmentMesh.Set(&m_rectangleGarment, 1.0f);
m_gridClothMesh.triangleCount = m_gridMesh.triangleCount;
m_gridClothMesh.triangles = (b3ClothMeshTriangle*)m_gridMesh.triangles;
m_gridClothMeshMesh.vertexCount = m_gridClothMesh.vertexCount;
m_gridClothMeshMesh.startVertex = 0;
// Create 3D mesh
m_rectangleClothMesh.Set(&m_rectangleGarmentMesh);
m_gridClothMeshMesh.triangleCount = m_gridClothMesh.triangleCount;
m_gridClothMeshMesh.startTriangle = 0;
//
b3Mat33 dq = b3Mat33RotationX(0.5f * B3_PI);
for (u32 i = 0; i < m_rectangleClothMesh.vertexCount; ++i)
{
m_rectangleClothMesh.vertices[i] = dq * m_rectangleClothMesh.vertices[i];
}
m_gridClothMesh.meshCount = 1;
m_gridClothMesh.meshes = &m_gridClothMeshMesh;
m_gridClothMesh.sewingLineCount = 0;
m_gridClothMesh.sewingLines = nullptr;
b3ClothDef def;
def.mesh = &m_gridClothMesh;
def.mesh = &m_rectangleClothMesh;
def.radius = 0.2f;
def.density = 0.2f;
def.ks = 10000.0f;
def.kd = 0.0f;
def.r = 0.2f;
def.structural = 10000.0f;
m_cloth = m_world.CreateCloth(def);
@@ -91,12 +85,11 @@ public:
aabb.m_lower.Set(-5.0f, -1.0f, -6.0f);
aabb.m_upper.Set(5.0f, 1.0f, -4.0f);
for (u32 i = 0; i < m_cloth->GetParticleCount(); ++i)
for (b3Particle* p = m_cloth->GetParticleList().m_head; p; p = p->GetNext())
{
b3Particle* p = m_cloth->GetParticle(i);
if (aabb.Contains(p->position))
if (aabb.Contains(p->GetPosition()))
{
m_cloth->SetType(p, e_staticParticle);
p->SetType(e_staticParticle);
}
}
}
@@ -107,38 +100,36 @@ public:
m_cloth->Apply();
b3ClothMesh* mesh = m_cloth->GetMesh();
b3StackArray<b3Vec3, 256> tension;
tension.Resize(m_cloth->GetParticleCount());
for (u32 i = 0; i < tension.Count(); ++i)
tension.Resize(mesh->vertexCount);
for (u32 i = 0; i < mesh->vertexCount; ++i)
{
tension[i].SetZero();
}
for (u32 i = 0; i < m_cloth->GetSpringCount(); ++i)
for (b3Force* f = m_cloth->GetForceList().m_head; f; f = f->GetNext())
{
b3Spring* s = m_cloth->GetSpring(i);
if (f->GetType() == e_springForce)
{
b3SpringForce* s = (b3SpringForce*)f;
b3Particle* p1 = s->p1;
b3Particle* p2 = s->p2;
u32 v1 = s->GetParticle1()->GetVertex();
u32 v2 = s->GetParticle2()->GetVertex();
u32 i1 = m_cloth->GetParticleIndex(p1);
u32 i2 = m_cloth->GetParticleIndex(p2);
tension[i1] += s->f;
tension[i2] -= s->f;
tension[v1] += s->GetActionForce();
tension[v2] -= s->GetActionForce();
}
}
for (u32 i = 0; i < m_gridClothMesh.triangleCount; ++i)
for (u32 i = 0; i < m_rectangleClothMesh.triangleCount; ++i)
{
b3ClothMeshTriangle* t = m_gridClothMesh.triangles + i;
b3ClothMeshTriangle* t = m_rectangleClothMesh.triangles + i;
b3Particle* p1 = m_cloth->GetParticle(t->v1);
b3Particle* p2 = m_cloth->GetParticle(t->v2);
b3Particle* p3 = m_cloth->GetParticle(t->v3);
b3Vec3 v1 = p1->position;
b3Vec3 v2 = p2->position;
b3Vec3 v3 = p3->position;
b3Vec3 v1 = mesh->vertices[t->v1];
b3Vec3 v2 = mesh->vertices[t->v2];
b3Vec3 v3 = mesh->vertices[t->v3];
b3Draw_draw->DrawSegment(v1, v2, b3Color_black);
b3Draw_draw->DrawSegment(v2, v3, b3Color_black);
@@ -183,9 +174,9 @@ public:
return new TensionMapping();
}
b3GridMesh<10, 10> m_gridMesh;
b3ClothMeshMesh m_gridClothMeshMesh;
b3ClothMesh m_gridClothMesh;
b3RectangleGarment m_rectangleGarment;
b3GarmentMesh m_rectangleGarmentMesh;
b3GarmentClothMesh m_rectangleClothMesh;
};
#endif