//----------------------------------------------------------------------------
void ClipMesh::CreateScene ()
{
mScene = new0 Node();
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_COLOR, VertexFormat::AT_FLOAT3, 0);
// The plane is fixed at z = 0.
mPlane.SetNormal(AVector::UNIT_Z);
mPlane.SetConstant(0.0f);
mMeshPlane = StandardMesh(vformat).Rectangle(32, 32, 16.0f, 16.0f);
VisualEffectInstance* instance =
VertexColor3Effect::CreateUniqueInstance();
instance->GetEffect()->GetWireState(0,0)->Enabled = true;
mMeshPlane->SetEffectInstance(instance);
mScene->AttachChild(mMeshPlane);
VertexBufferAccessor vba(mMeshPlane);
Float3 green(0.0f, 1.0f, 0.0f);
int i;
for (i = 0; i < vba.GetNumVertices(); ++i)
{
vba.Color<Float3>(0, i) = green;
}
// Get the positions and indices for a torus.
mTorus = StandardMesh(vformat).Torus(64, 64, 4.0f, 1.0f);
instance = VertexColor3Effect::CreateUniqueInstance();
mTorusWireState = instance->GetEffect()->GetWireState(0, 0);
mTorus->SetEffectInstance(instance);
mScene->AttachChild(mTorus);
vba.ApplyTo(mTorus);
mTorusVerticesMS.resize(vba.GetNumVertices());
mTorusVerticesWS.resize(vba.GetNumVertices());
Float3 black(0.0f, 0.0f, 0.0f);
for (i = 0; i < vba.GetNumVertices(); ++i)
{
mTorusVerticesMS[i] = vba.Position<Float3>(i);
mTorusVerticesWS[i] = mTorusVerticesMS[i];
vba.Color<Float3>(0, i) = black;
}
IndexBuffer* ibuffer = mTorus->GetIndexBuffer();
int numIndices = ibuffer->GetNumElements();
int* indices = (int*)ibuffer->GetData();
mTorusIndices.resize(numIndices);
memcpy(&mTorusIndices[0], indices, numIndices*sizeof(int));
Update();
}
//----------------------------------------------------------------------------
ClodMesh::ClodMesh (TriMesh* mesh, CollapseRecordArray* recordArray)
:
TriMesh(mesh->GetVertexFormat(), mesh->GetVertexBuffer(), 0),
mCurrentRecord(0),
mTargetRecord(0),
mRecordArray(recordArray)
{
assertion(recordArray != 0, "Record array is needed for construction.\n");
// 创建一份顶点索引的拷贝
IndexBuffer* ibuffer = mesh->GetIndexBuffer();
int numIndices = ibuffer->GetNumElements();
int elementSize = ibuffer->GetElementSize();
assertion(elementSize == 4, "Invalid indices.\n");
char* srcIndices = ibuffer->GetData();
mIBuffer = new0 IndexBuffer(numIndices, elementSize);
char* trgIndices = mIBuffer->GetData();
memcpy(trgIndices, srcIndices, numIndices*elementSize);
}
//----------------------------------------------------------------------------
void Fluids3D::CreateScene ()
{
// Get fluid solver parameters.
const int bound0M1 = mSmoke->GetIMax();
const int bound1M1 = mSmoke->GetJMax();
const int bound2M1 = mSmoke->GetKMax();
const int bound0 = bound0M1 + 1;
const int bound1 = bound1M1 + 1;
const int bound2 = bound2M1 + 1;
const int quantity = bound0*bound1*bound2;
const float* x = mSmoke->GetX();
const float* y = mSmoke->GetY();
const float* z = mSmoke->GetZ();
#ifdef USE_PARTICLES
// Create the vertex format.
VertexFormat* vformat = VertexFormat::Create(3,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_TEXCOORD, VertexFormat::AT_FLOAT2, 0,
VertexFormat::AU_COLOR, VertexFormat::AT_FLOAT4, 0);
#else
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_COLOR, VertexFormat::AT_FLOAT4, 0);
#endif
// Create the vertex buffer for the cube.
#ifdef USE_PARTICLES
const int numVertices = 4*quantity;
#else
const int numVertices = quantity;
#endif
int vstride = vformat->GetStride();
VertexBuffer* vbuffer = new0 VertexBuffer(numVertices, vstride);
int i0, i1, i2, index;
#ifdef USE_PARTICLES
const float delta = mSmoke->GetDx();
Float4* posSize = new1<Float4>(quantity);
for (i2 = 0, index = 0; i2 < bound2; ++i2)
{
for (i1 = 0; i1 < bound1; ++i1)
{
for (i0 = 0; i0 < bound0; ++i0, ++index)
{
posSize[index] = Float4(x[i0], y[i1], z[i2], delta);
}
}
}
mCube = new0 Particles(vformat, vbuffer, 4, posSize, 1.0f);
UpdateVertexBuffer();
IndexBuffer* ibuffer = mCube->GetIndexBuffer();
#else
VertexBufferAccessor vba(vformat, vbuffer);
for (i2 = 0, index = 0; i2 < bound2; ++i2)
{
for (i1 = 0; i1 < bound1; ++i1)
{
for (i0 = 0; i0 < bound0; ++i0, ++index)
{
vba.Position<Float3>(index) = Float3(x[i0], y[i1], z[i2]);
}
}
}
// Create the index buffer for the cube.
const int numIndices =
6*bound0M1*bound1M1*bound2 +
6*bound0M1*bound1*bound2M1 +
6*bound0*bound1M1*bound2M1;
IndexBuffer* ibuffer = new0 IndexBuffer(numIndices, sizeof(int));
int* indices = (int*)ibuffer->GetData();
const int bound01 = bound0*bound1;
int j0, j1, j2, j3;
for (i2 = 0; i2 < bound2; ++i2)
{
for (i1 = 0; i1 < bound1M1; ++i1)
{
for (i0 = 0; i0 < bound0M1; ++i0)
{
j0 = i0 + bound0*(i1 + bound1*i2);
j1 = j0 + 1;
j2 = j1 + bound0;
j3 = j2 - 1;
*indices++ = j0;
*indices++ = j1;
*indices++ = j2;
*indices++ = j0;
*indices++ = j2;
*indices++ = j3;
}
}
}
for (i1 = 0; i1 < bound1; ++i1)
{
for (i2 = 0; i2 < bound2M1; ++i2)
{
for (i0 = 0; i0 < bound0M1; ++i0)
{
j0 = i0 + bound0*(i1 + bound1*i2);
j1 = j0 + 1;
j2 = j1 + bound01;
j3 = j2 - 1;
*indices++ = j0;
*indices++ = j1;
*indices++ = j2;
*indices++ = j0;
*indices++ = j2;
*indices++ = j3;
}
}
}
for (i0 = 0; i0 < bound0; ++i0)
{
for (i1 = 0; i1 < bound1M1; ++i1)
{
for (i2 = 0; i2 < bound2M1; ++i2)
{
j0 = i0 + bound0*(i1 + bound1*i2);
j1 = j0 + bound0;
j2 = j1 + bound01;
j3 = j2 - bound0;
*indices++ = j0;
*indices++ = j1;
*indices++ = j2;
*indices++ = j0;
*indices++ = j2;
*indices++ = j3;
}
}
}
mCube = new0 TriMesh(vformat, vbuffer, ibuffer);
UpdateVertexBuffer();
#endif
mNumIndices = ibuffer->GetNumElements();
mIndices = new1<int>(mNumIndices);
memcpy(mIndices, ibuffer->GetData(), mNumIndices*sizeof(int));
// Create the cube effect.
#ifdef USE_PARTICLES
std::string path = Environment::GetPathR("Disk.wmtf");
Texture2D* texture = Texture2D::LoadWMTF(path);
VisualEffectInstance* instance =
VertexColor4TextureEffect::CreateUniqueInstance(texture,
Shader::SF_NEAREST, Shader::SC_CLAMP_EDGE, Shader::SC_CLAMP_EDGE);
#else
VertexColor4Effect* effect = new0 VertexColor4Effect();
VisualEffectInstance* instance = effect->CreateInstance();
#endif
const VisualPass* pass = instance->GetPass(0);
AlphaState* astate = pass->GetAlphaState();
astate->BlendEnabled = true;
CullState* cstate = pass->GetCullState();
cstate->Enabled = false;
DepthState* dstate = pass->GetDepthState();
dstate->Enabled = false;
dstate->Writable = false;
mCube->SetEffectInstance(instance);
mScene = new0 Node();
mScene->AttachChild(mCube);
}
