//----------------------------------------------------------------------------
void ExtremalQuery::CreateScene ()
{
mScene = new0 Node();
mWireState = new0 WireState();
mRenderer->SetOverrideWireState(mWireState);
mCullState = new0 CullState();
mCullState->Enabled = false;
mRenderer->SetOverrideCullState(mCullState);
const int numVertices = 32;
CreateConvexPolyhedron(numVertices);
mScene->AttachChild(CreateVisualConvexPolyhedron());
// Use small spheres to show the extreme points in the camera's right
// direction.
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_COLOR, VertexFormat::AT_FLOAT3, 0);
StandardMesh sm(vformat);
VertexColor3Effect* effect = new0 VertexColor3Effect();
// maximum sphere
mMaxSphere = sm.Sphere(8, 8, 0.05f);
mMaxSphere->SetEffectInstance(effect->CreateInstance());
mScene->AttachChild(mMaxSphere);
// minimum sphere
mMinSphere = sm.Sphere(8, 8, 0.05f);
mMinSphere->SetEffectInstance(effect->CreateInstance());
mScene->AttachChild(mMinSphere);
UpdateExtremePoints();
}
//----------------------------------------------------------------------------
void CollisionsMovingSpheres::CreateScene ()
{
mScene = new0 Node();
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_COLOR, VertexFormat::AT_FLOAT3, 0);
StandardMesh sm(vformat);
mSphere0.Radius = 0.1f;
mSphere1.Radius = 0.2f;
mVelocity0 = Vector3f(0.0f, -1.0f, 0.0f);
mVelocity1 = Vector3f(0.0f, 0.0f, 1.0f);
mMesh0 = sm.Sphere(16, 16, mSphere0.Radius);
mMesh1 = sm.Sphere(16, 16, mSphere1.Radius);
VertexBufferAccessor vba0(mMesh0), vba1(mMesh1);
for (int i = 0; i < vba0.GetNumVertices(); ++i)
{
vba0.Color<Float3>(0, i) = Float3(Mathf::UnitRandom(), 0.0f, 0.0f);
vba1.Color<Float3>(0, i) = Float3(0.0f, 0.0f, Mathf::UnitRandom());
}
VertexColor3Effect* effect = new0 VertexColor3Effect();
mMesh0->SetEffectInstance(effect->CreateInstance());
mMesh1->SetEffectInstance(effect->CreateInstance());
mSphere0.Center = Vector3f(0.0f, 0.75f, 0.0f);
mSphere1.Center = Vector3f(0.0f, -0.75f, 0.0f);
mMesh0->LocalTransform.SetTranslate(mSphere0.Center);
mMesh1->LocalTransform.SetTranslate(mSphere1.Center);
mScene->AttachChild(mMesh0);
mScene->AttachChild(mMesh1);
}
//----------------------------------------------------------------------------
Node* RoughPlaneSolidBox::CreateBox ()
{
mBox = new0 Node();
float xExtent = (float)mModule.XLocExt;
float yExtent = (float)mModule.YLocExt;
float zExtent = (float)mModule.ZLocExt;
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_COLOR, VertexFormat::AT_FLOAT3, 0);
StandardMesh sm(vformat);
VertexColor3Effect* effect = new0 VertexColor3Effect();
VertexBufferAccessor vba;
Transform transform;
TriMesh* face;
int i;
// +z face
Float3 red(1.0f, 0.0f, 0.0f);
transform.SetTranslate(APoint(0.0f, 0.0f, zExtent));
sm.SetTransform(transform);
face = sm.Rectangle(2, 2, xExtent, yExtent);
vba.ApplyTo(face);
for (i = 0; i < 4; ++i)
{
vba.Color<Float3>(0, 0) = red;
vba.Color<Float3>(0, 1) = red;
vba.Color<Float3>(0, 2) = red;
vba.Color<Float3>(0, 3) = red;
}
face->SetEffectInstance(effect->CreateInstance());
mBox->AttachChild(face);
// -z face
Float3 darkRed(0.5f, 0.0f, 0.0f);
transform.SetTranslate(APoint(0.0f, 0.0f, -zExtent));
transform.SetRotate(HMatrix(AVector::UNIT_Y, AVector::UNIT_X,
-AVector::UNIT_Z, APoint::ORIGIN, true));
sm.SetTransform(transform);
face = sm.Rectangle(2, 2, yExtent, xExtent);
vba.ApplyTo(face);
for (i = 0; i < 4; ++i)
{
vba.Color<Float3>(0, 0) = darkRed;
vba.Color<Float3>(0, 1) = darkRed;
vba.Color<Float3>(0, 2) = darkRed;
vba.Color<Float3>(0, 3) = darkRed;
}
face->SetEffectInstance(effect->CreateInstance());
mBox->AttachChild(face);
// +y face
Float3 green(0.0f, 1.0f, 0.0f);
transform.SetTranslate(APoint(0.0f, yExtent, 0.0f));
transform.SetRotate(HMatrix(AVector::UNIT_Z, AVector::UNIT_X,
AVector::UNIT_Y, APoint::ORIGIN, true));
sm.SetTransform(transform);
face = sm.Rectangle(2, 2, zExtent, xExtent);
vba.ApplyTo(face);
for (i = 0; i < 4; ++i)
{
vba.Color<Float3>(0, 0) = green;
vba.Color<Float3>(0, 1) = green;
vba.Color<Float3>(0, 2) = green;
vba.Color<Float3>(0, 3) = green;
}
face->SetEffectInstance(effect->CreateInstance());
mBox->AttachChild(face);
// -y face
Float3 darkGreen(0.0f, 1.0f, 0.0f);
transform.SetTranslate(APoint(0.0f, -yExtent, 0.0f));
transform.SetRotate(HMatrix(AVector::UNIT_X, AVector::UNIT_Z,
-AVector::UNIT_Y, APoint::ORIGIN, true));
sm.SetTransform(transform);
face = sm.Rectangle(2, 2, xExtent, zExtent);
vba.ApplyTo(face);
for (i = 0; i < 4; ++i)
{
vba.Color<Float3>(0, 0) = darkGreen;
vba.Color<Float3>(0, 1) = darkGreen;
vba.Color<Float3>(0, 2) = darkGreen;
vba.Color<Float3>(0, 3) = darkGreen;
}
face->SetEffectInstance(effect->CreateInstance());
mBox->AttachChild(face);
// +x face
Float3 blue(0.0f, 0.0f, 1.0f);
transform.SetTranslate(APoint(xExtent, 0.0f, 0.0f));
transform.SetRotate(HMatrix(AVector::UNIT_Y, AVector::UNIT_Z,
AVector::UNIT_X, APoint::ORIGIN, true));
sm.SetTransform(transform);
face = sm.Rectangle(2, 2, yExtent, zExtent);
vba.ApplyTo(face);
for (i = 0; i < 4; ++i)
{
vba.Color<Float3>(0, 0) = blue;
vba.Color<Float3>(0, 1) = blue;
vba.Color<Float3>(0, 2) = blue;
vba.Color<Float3>(0, 3) = blue;
}
face->SetEffectInstance(effect->CreateInstance());
mBox->AttachChild(face);
// -x face
Float3 darkBlue(0.0f, 0.0f, 1.0f);
transform.SetTranslate(APoint(-xExtent, 0.0f, 0.0f));
transform.SetRotate(HMatrix(AVector::UNIT_Z, AVector::UNIT_Y,
-AVector::UNIT_X, APoint::ORIGIN, true));
sm.SetTransform(transform);
face = sm.Rectangle(2, 2, zExtent, yExtent);
vba.ApplyTo(face);
for (i = 0; i < 4; ++i)
{
vba.Color<Float3>(0, 0) = darkBlue;
vba.Color<Float3>(0, 1) = darkBlue;
vba.Color<Float3>(0, 2) = darkBlue;
vba.Color<Float3>(0, 3) = darkBlue;
}
face->SetEffectInstance(effect->CreateInstance());
mBox->AttachChild(face);
MoveBox();
return mBox;
}
//----------------------------------------------------------------------------
void PolygonOffsets::CreateScene ()
{
mScene = new0 Node();
mWireState = new0 WireState();
mRenderer->SetOverrideWireState(mWireState);
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_COLOR, VertexFormat::AT_FLOAT3, 0);
int vstride = vformat->GetStride();
// Vertices to be shared by rectangles 1 and 3.
VertexBuffer* vbuffer0 = new0 VertexBuffer(4, vstride);
VertexBufferAccessor vba(vformat, vbuffer0);
vba.Position<Float3>(0) = Float3(-1.0f, 0.0f, -1.0f);
vba.Position<Float3>(1) = Float3(-1.0f, 0.0f, +1.0f);
vba.Position<Float3>(2) = Float3(+1.0f, 0.0f, +1.0f);
vba.Position<Float3>(3) = Float3(+1.0f, 0.0f, -1.0f);
vba.Color<Float3>(0, 0) = Float3(1.0f, 0.0f, 0.0f);
vba.Color<Float3>(0, 1) = Float3(1.0f, 0.0f, 0.0f);
vba.Color<Float3>(0, 2) = Float3(1.0f, 0.0f, 0.0f);
vba.Color<Float3>(0, 3) = Float3(1.0f, 0.0f, 0.0f);
// Vertices to be shared by rectangles 2 and 4.
VertexBuffer* vbuffer1 = new0 VertexBuffer(4, vstride);
vba.ApplyTo(vformat, vbuffer1);
vba.Position<Float3>(0) = Float3(-1.0f, 0.0f, -1.0f);
vba.Position<Float3>(1) = Float3(-1.0f, 0.0f, +1.0f);
vba.Position<Float3>(2) = Float3(+1.0f, 0.0f, +1.0f);
vba.Position<Float3>(3) = Float3(+1.0f, 0.0f, -1.0f);
vba.Color<Float3>(0, 0) = Float3(0.0f, 1.0f, 0.0f);
vba.Color<Float3>(0, 1) = Float3(0.0f, 1.0f, 0.0f);
vba.Color<Float3>(0, 2) = Float3(0.0f, 1.0f, 0.0f);
vba.Color<Float3>(0, 3) = Float3(0.0f, 1.0f, 0.0f);
// Indices to be shared by all rectangles.
IndexBuffer* ibuffer = new0 IndexBuffer(6, sizeof(int));
int* indices = (int*)ibuffer->GetData();
indices[0] = 0; indices[1] = 1; indices[2] = 3;
indices[3] = 3; indices[4] = 1; indices[5] = 2;
// Effect to be shared by the first three rectangles.
VertexColor3Effect* effect = new0 VertexColor3Effect();
// rectangle 1
TriMesh* mesh = new0 TriMesh(vformat, vbuffer0, ibuffer);
mesh->SetEffectInstance(effect->CreateInstance());
mesh->LocalTransform.SetTranslate(APoint(+2.0f, -4.0f, 0.0f));
mScene->AttachChild(mesh);
// rectangle 2
mesh = new0 TriMesh(vformat, vbuffer1, ibuffer);
mesh->SetEffectInstance(effect->CreateInstance());
mesh->LocalTransform.SetTranslate(APoint(+2.0f, -4.0f, 0.0f));
mesh->LocalTransform.SetUniformScale(0.5f);
mScene->AttachChild(mesh);
// rectangle 3
mesh = new0 TriMesh(vformat, vbuffer0, ibuffer);
mesh->SetEffectInstance(effect->CreateInstance());
mesh->LocalTransform.SetTranslate(APoint(-2.0f, -4.0f, 0.0f));
mScene->AttachChild(mesh);
// rectangle 4
mesh = new0 TriMesh(vformat, vbuffer1, ibuffer);
mesh->LocalTransform.SetTranslate(APoint(-2.0f, -4.0f, 0.0f));
mesh->LocalTransform.SetUniformScale(0.5f);
mScene->AttachChild(mesh);
// Set up the polygon offset for rectangle 4.
effect = new0 VertexColor3Effect();
OffsetState* ostate = effect->GetOffsetState(0, 0);
ostate->FillEnabled = true;
ostate->Scale = -1.0f;
ostate->Bias = -2.0f;
mesh->SetEffectInstance(effect->CreateInstance());
}
//----------------------------------------------------------------------------
void FreeFormDeformation::CreatePolylines ()
{
// Generate the polylines that connect adjacent control points.
mPolysegmentRoot = new0 Node();
mTrnNode->AttachChild(mPolysegmentRoot);
VertexColor3Effect* effect = new0 VertexColor3Effect();
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_COLOR, VertexFormat::AT_FLOAT3, 0);
int vstride = vformat->GetStride();
VertexBufferAccessor vba;
VertexBuffer* vbuffer;
Polysegment* segment;
int i0, i1, i2;
for (i0 = 0; i0 < mQuantity; ++i0)
{
for (i1 = 0; i1 < mQuantity; ++i1)
{
for (i2 = 0; i2 < mQuantity-1; ++i2)
{
vbuffer = new0 VertexBuffer(2, vstride);
vba.ApplyTo(vformat, vbuffer);
vba.Position<Vector3f>(0) =
mVolume->GetControlPoint(i0, i1, i2);
vba.Position<Vector3f>(1) =
mVolume->GetControlPoint(i0, i1, i2+1);
vba.Color<Float3>(0, 0) = Float3(0.0f, 0.0f, 0.75f);
vba.Color<Float3>(0, 1) = Float3(0.0f, 0.0f, 0.75f);
segment = new0 Polysegment(vformat, vbuffer, true);
segment->SetEffectInstance(effect->CreateInstance());
mPolysegmentRoot->AttachChild(segment);
}
}
for (i2 = 0; i2 < mQuantity; ++i2)
{
for (i1 = 0; i1 < mQuantity-1; ++i1)
{
vbuffer = new0 VertexBuffer(2, vstride);
vba.ApplyTo(vformat, vbuffer);
vba.Position<Vector3f>(0) =
mVolume->GetControlPoint(i0, i1, i2);
vba.Position<Vector3f>(1) =
mVolume->GetControlPoint(i0, i1+1, i2);
vba.Color<Float3>(0, 0) = Float3(0.0f, 0.75f, 0.0f);
vba.Color<Float3>(0, 1) = Float3(0.0f, 0.75f, 0.0f);
segment = new0 Polysegment(vformat, vbuffer, true);
segment->SetEffectInstance(effect->CreateInstance());
mPolysegmentRoot->AttachChild(segment);
}
}
}
for (i0 = 0; i0 < mQuantity-1; ++i0)
{
for (i1 = 0; i1 < mQuantity; ++i1)
{
for (i2 = 0; i2 < mQuantity; ++i2)
{
vbuffer = new0 VertexBuffer(2, vstride);
vba.ApplyTo(vformat, vbuffer);
vba.Position<Vector3f>(0) =
mVolume->GetControlPoint(i0, i1, i2);
vba.Position<Vector3f>(1) =
mVolume->GetControlPoint(i0+1, i1, i2);
vba.Color<Float3>(0,0) = Float3(0.75f, 0.0f, 0.0f);
vba.Color<Float3>(0,1) = Float3(0.75f, 0.0f, 0.0f);
segment = new0 Polysegment(vformat, vbuffer, true);
segment->SetEffectInstance(effect->CreateInstance());
mPolysegmentRoot->AttachChild(segment);
}
}
}
}