//----------------------------------------------------------------------------
void VolumeFog::CreateScene ()
{
// Create a screen-space camera for the background image.
mScreenCamera = ScreenTarget::CreateCamera();
// Create a screen polygon for the background image.
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_TEXCOORD, VertexFormat::AT_FLOAT2, 0);
mScreenPolygon = ScreenTarget::CreateRectangle(vformat, GetWidth(),
GetHeight(), 0.0f, 1.0f, 0.0f, 1.0f, 1.0f);
std::string skyName = Environment::GetPathR("BlueSky.wmtf");
Texture2D* skyTexture = Texture2D::LoadWMTF(skyName);
Texture2DEffect* skyEffect = new0 Texture2DEffect();
mScreenPolygon->SetEffectInstance(skyEffect->CreateInstance(skyTexture));
// Create the scene graph for the terrain.
mScene = new0 Node();
// Begin with a flat height field.
vformat = VertexFormat::Create(3,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_COLOR, VertexFormat::AT_FLOAT4, 0,
VertexFormat::AU_TEXCOORD, VertexFormat::AT_FLOAT2, 0);
mMesh = StandardMesh(vformat).Rectangle(64, 64, 8.0f, 8.0f);
mScene->AttachChild(mMesh);
// Set the heights based on a precomputed height field. Also create a
// texture image to go with the height field.
std::string heightFieldName = Environment::GetPathR("HeightField.wmtf");
Texture2D* heightTexture = Texture2D::LoadWMTF(heightFieldName);
unsigned char* data = (unsigned char*)heightTexture->GetData(0);
Float4 white(1.0f, 1.0f, 1.0f, 0.0f);
VertexBufferAccessor vba(mMesh);
for (int i = 0; i < vba.GetNumVertices(); ++i)
{
unsigned char value = *data;
float height = 3.0f*value/255.0f + 0.05f*Mathf::SymmetricRandom();
*data++ = (unsigned char)Mathf::IntervalRandom(32.0f, 64.0f);
*data++ = 3*(128 - value/2)/4;
*data++ = 0;
*data++ = 255;
vba.Position<Float3>(i)[2] = height;
// The fog color is white. The alpha channel is filled in by the
// function UpdateFog().
vba.Color<Float4>(0, i) = white;
}
UpdateFog();
std::string effectFile = Environment::GetPathR("VolumeFog.wmfx");
VolumeFogEffect* effect = new0 VolumeFogEffect(effectFile);
mMesh->SetEffectInstance(effect->CreateInstance(heightTexture));
}
//----------------------------------------------------------------------------
VisualEffectInstance* Texture2DEffect::CreateUniqueInstance (
Texture2D* texture, Shader::SamplerFilter filter,
Shader::SamplerCoordinate coordinate0,
Shader::SamplerCoordinate coordinate1)
{
Texture2DEffect* effect = new0 Texture2DEffect();
PixelShader* pshader = effect->GetPixelShader();
pshader->SetFilter(0, filter);
pshader->SetCoordinate(0, 0, coordinate0);
pshader->SetCoordinate(0, 1, coordinate1);
return effect->CreateInstance(texture);
}
//----------------------------------------------------------------------------
void ReflectionsAndShadows::CreatePlanes ()
{
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_TEXCOORD, VertexFormat::AT_FLOAT2, 0);
int vstride = vformat->GetStride();
// Create the floor mesh.
VertexBuffer* vbuffer = new0 VertexBuffer(4, vstride);
VertexBufferAccessor floor(vformat, vbuffer);
float xValue = 128.0f;
float yValue = 256.0f;
float zValue = 0.0f;
floor.Position<Float3>(0) = Float3(-xValue, -yValue, zValue);
floor.Position<Float3>(1) = Float3(+xValue, -yValue, zValue);
floor.Position<Float3>(2) = Float3(+xValue, +yValue, zValue);
floor.Position<Float3>(3) = Float3(-xValue, +yValue, zValue);
floor.TCoord<Float2>(0, 0) = Float2(0.0f, 0.0f);
floor.TCoord<Float2>(0, 1) = Float2(1.0f, 0.0f);
floor.TCoord<Float2>(0, 2) = Float2(1.0f, 1.0f);
floor.TCoord<Float2>(0, 3) = Float2(0.0f, 1.0f);
IndexBuffer* ibuffer = new0 IndexBuffer(6, sizeof(int));
int* indices = (int*)ibuffer->GetData();
indices[0] = 0; indices[1] = 1; indices[2] = 2;
indices[3] = 0; indices[4] = 2; indices[5] = 3;
mPlane0 = new0 TriMesh(vformat, vbuffer, ibuffer);
Texture2DEffect* effect = new0 Texture2DEffect(Shader::SF_LINEAR_LINEAR,
Shader::SC_REPEAT, Shader::SC_REPEAT);
std::string path = Environment::GetPathR("Sand.wmtf");
Texture2D* texture = Texture2D::LoadWMTF(path);
mPlane0->SetEffectInstance(effect->CreateInstance(texture));
mScene->AttachChild(mPlane0);
// Create the wall mesh.
vbuffer = new0 VertexBuffer(4, vstride);
VertexBufferAccessor wall(vformat, vbuffer);
xValue = -128.0f;
yValue = 256.0f;
zValue = 128.0f;
wall.Position<Float3>(0) = Float3(xValue, -yValue, 0.0f);
wall.Position<Float3>(1) = Float3(xValue, +yValue, 0.0f);
wall.Position<Float3>(2) = Float3(xValue, +yValue, zValue);
wall.Position<Float3>(3) = Float3(xValue, -yValue, zValue);
wall.TCoord<Float2>(0, 0) = Float2(0.0f, 0.0f);
wall.TCoord<Float2>(0, 1) = Float2(1.0f, 0.0f);
wall.TCoord<Float2>(0, 2) = Float2(1.0f, 1.0f);
wall.TCoord<Float2>(0, 3) = Float2(0.0f, 1.0f);
mPlane1 = new0 TriMesh(vformat, vbuffer, ibuffer);
path = Environment::GetPathR("Stone.wmtf");
texture = Texture2D::LoadWMTF(path);
mPlane1->SetEffectInstance(effect->CreateInstance(texture));
mScene->AttachChild(mPlane1);
}
//----------------------------------------------------------------------------
void CubeMaps::CreateScene ()
{
// Create the root of the scene.
mScene = new0 Node();
mWireState = new0 WireState();
mRenderer->SetOverrideWireState(mWireState);
// Create the walls of the cube room. Each of the six texture images is
// RGBA 64-by-64.
Node* room = new0 Node();
mScene->AttachChild(room);
// Index buffer shared by the room walls.
IndexBuffer* ibuffer = new0 IndexBuffer(6, sizeof(int));
int* indices = (int*)ibuffer->GetData();
indices[0] = 0; indices[1] = 1; indices[2] = 3;
indices[3] = 0; indices[4] = 3; indices[5] = 2;
// The vertex format shared by the room walls.
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_TEXCOORD, VertexFormat::AT_FLOAT2, 0);
int vstride = vformat->GetStride();
VertexBufferAccessor vba;
// The texture effect shared by the room walls.
Texture2DEffect* effect = new0 Texture2DEffect(Shader::SF_LINEAR);
VertexBuffer* vbuffer;
TriMesh* wall;
std::string textureName;
// +x wall
vbuffer = new0 VertexBuffer(4, vstride);
vba.ApplyTo(vformat, vbuffer);
vba.Position<Float3>(0) = Float3(+1.0f, -1.0f, -1.0f);
vba.Position<Float3>(1) = Float3(+1.0f, -1.0f, +1.0f);
vba.Position<Float3>(2) = Float3(+1.0f, +1.0f, -1.0f);
vba.Position<Float3>(3) = Float3(+1.0f, +1.0f, +1.0f);
vba.TCoord<Float2>(0, 0) = Float2(0.0f, 0.0f);
vba.TCoord<Float2>(0, 1) = Float2(1.0f, 0.0f);
vba.TCoord<Float2>(0, 2) = Float2(0.0f, 1.0f);
vba.TCoord<Float2>(0, 3) = Float2(1.0f, 1.0f);
wall = new0 TriMesh(vformat, vbuffer, ibuffer);
room->AttachChild(wall);
textureName = Environment::GetPathR("XpFace.wmtf");
Texture2D* xpTexture = Texture2D::LoadWMTF(textureName);
wall->SetEffectInstance(effect->CreateInstance(xpTexture));
// -x wall
vbuffer = new0 VertexBuffer(4, vstride);
vba.ApplyTo(vformat, vbuffer);
vba.Position<Float3>(0) = Float3(-1.0f, -1.0f, +1.0f);
vba.Position<Float3>(1) = Float3(-1.0f, -1.0f, -1.0f);
vba.Position<Float3>(2) = Float3(-1.0f, +1.0f, +1.0f);
vba.Position<Float3>(3) = Float3(-1.0f, +1.0f, -1.0f);
vba.TCoord<Float2>(0, 0) = Float2(0.0f, 0.0f);
vba.TCoord<Float2>(0, 1) = Float2(1.0f, 0.0f);
vba.TCoord<Float2>(0, 2) = Float2(0.0f, 1.0f);
vba.TCoord<Float2>(0, 3) = Float2(1.0f, 1.0f);
wall = new0 TriMesh(vformat, vbuffer, ibuffer);
room->AttachChild(wall);
textureName = Environment::GetPathR("XmFace.wmtf");
Texture2D* xmTexture = Texture2D::LoadWMTF(textureName);
wall->SetEffectInstance(effect->CreateInstance(xmTexture));
// +y wall
vbuffer = new0 VertexBuffer(4, vstride);
vba.ApplyTo(vformat, vbuffer);
vba.Position<Float3>(0) = Float3(+1.0f, +1.0f, +1.0f);
vba.Position<Float3>(1) = Float3(-1.0f, +1.0f, +1.0f);
vba.Position<Float3>(2) = Float3(+1.0f, +1.0f, -1.0f);
vba.Position<Float3>(3) = Float3(-1.0f, +1.0f, -1.0f);
vba.TCoord<Float2>(0, 0) = Float2(0.0f, 0.0f);
vba.TCoord<Float2>(0, 1) = Float2(1.0f, 0.0f);
vba.TCoord<Float2>(0, 2) = Float2(0.0f, 1.0f);
vba.TCoord<Float2>(0, 3) = Float2(1.0f, 1.0f);
wall = new0 TriMesh(vformat, vbuffer, ibuffer);
room->AttachChild(wall);
textureName = Environment::GetPathR("YpFace.wmtf");
Texture2D* ypTexture = Texture2D::LoadWMTF(textureName);
wall->SetEffectInstance(effect->CreateInstance(ypTexture));
// -y wall
vbuffer = new0 VertexBuffer(4, vstride);
vba.ApplyTo(vformat, vbuffer);
vba.Position<Float3>(0) = Float3(+1.0f, -1.0f, -1.0f);
vba.Position<Float3>(1) = Float3(-1.0f, -1.0f, -1.0f);
vba.Position<Float3>(2) = Float3(+1.0f, -1.0f, +1.0f);
vba.Position<Float3>(3) = Float3(-1.0f, -1.0f, +1.0f);
vba.TCoord<Float2>(0, 0) = Float2(0.0f, 0.0f);
vba.TCoord<Float2>(0, 1) = Float2(1.0f, 0.0f);
vba.TCoord<Float2>(0, 2) = Float2(0.0f, 1.0f);
vba.TCoord<Float2>(0, 3) = Float2(1.0f, 1.0f);
wall = new0 TriMesh(vformat, vbuffer, ibuffer);
room->AttachChild(wall);
textureName = Environment::GetPathR("YmFace.wmtf");
Texture2D* ymTexture = Texture2D::LoadWMTF(textureName);
wall->SetEffectInstance(effect->CreateInstance(ymTexture));
// +z wall
vbuffer = new0 VertexBuffer(4, vstride);
vba.ApplyTo(vformat, vbuffer);
vba.Position<Float3>(0) = Float3(+1.0f, -1.0f, +1.0f);
vba.Position<Float3>(1) = Float3(-1.0f, -1.0f, +1.0f);
vba.Position<Float3>(2) = Float3(+1.0f, +1.0f, +1.0f);
vba.Position<Float3>(3) = Float3(-1.0f, +1.0f, +1.0f);
vba.TCoord<Float2>(0, 0) = Float2(0.0f, 0.0f);
vba.TCoord<Float2>(0, 1) = Float2(1.0f, 0.0f);
vba.TCoord<Float2>(0, 2) = Float2(0.0f, 1.0f);
vba.TCoord<Float2>(0, 3) = Float2(1.0f, 1.0f);
wall = new0 TriMesh(vformat, vbuffer, ibuffer);
room->AttachChild(wall);
textureName = Environment::GetPathR("ZpFace.wmtf");
Texture2D* zpTexture = Texture2D::LoadWMTF(textureName);
wall->SetEffectInstance(effect->CreateInstance(zpTexture));
// -z wall
vbuffer = new0 VertexBuffer(4, vstride);
vba.ApplyTo(vformat, vbuffer);
vba.Position<Float3>(0) = Float3(-1.0f, -1.0f, -1.0f);
vba.Position<Float3>(1) = Float3(+1.0f, -1.0f, -1.0f);
vba.Position<Float3>(2) = Float3(-1.0f, +1.0f, -1.0f);
vba.Position<Float3>(3) = Float3(+1.0f, +1.0f, -1.0f);
vba.TCoord<Float2>(0, 0) = Float2(0.0f, 0.0f);
vba.TCoord<Float2>(0, 1) = Float2(1.0f, 0.0f);
vba.TCoord<Float2>(0, 2) = Float2(0.0f, 1.0f);
vba.TCoord<Float2>(0, 3) = Float2(1.0f, 1.0f);
wall = new0 TriMesh(vformat, vbuffer, ibuffer);
room->AttachChild(wall);
textureName = Environment::GetPathR("ZmFace.wmtf");
Texture2D* zmTexture = Texture2D::LoadWMTF(textureName);
wall->SetEffectInstance(effect->CreateInstance(zmTexture));
// A sphere to reflect the environment via a cube map. The colors will
// be used to modulate the cube map texture.
vformat = VertexFormat::Create(3,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_NORMAL, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_COLOR, VertexFormat::AT_FLOAT3, 0);
vstride = vformat->GetStride();
mSphere = StandardMesh(vformat).Sphere(64, 64, 0.125f);
room->AttachChild(mSphere);
// Generate random vertex colors for the sphere. The StandardMesh class
// produces a sphere with duplicated vertices along a longitude line.
// This allows texture coordinates to be assigned in a manner that treats
// the sphere as if it were a rectangle mesh. For vertex colors, we want
// the duplicated vertices to have the same color, so a hash table is used
// to look up vertex colors for the duplicates.
vba.ApplyTo(mSphere);
std::map<Float3,Float3> dataMap;
for (int i = 0; i < vba.GetNumVertices(); ++i)
{
Float3& position = vba.Position<Float3>(i);
Float3& color = vba.Color<Float3>(0, i);
std::map<Float3,Float3>::iterator iter = dataMap.find(position);
if (iter != dataMap.end())
{
color = iter->second;
}
else
{
color[0] = 0.0f;
color[1] = Mathf::IntervalRandom(0.5f, 0.75f);
color[2] = Mathf::IntervalRandom(0.75f, 1.0f);
dataMap.insert(std::make_pair(position, color));
}
}
// Create the cube map and attach it to the sphere.
std::string effectFile = Environment::GetPathR("CubeMap.wmfx");
CubeMapEffect* cubeMapEffect = new0 CubeMapEffect(effectFile);
ShaderFloat* reflectivity = new0 ShaderFloat(1);
(*reflectivity)[0] = 0.5f;
std::string cubeName = Environment::GetPathR("CubeMap.wmtf");
TextureCube* cubeTexture = TextureCube::LoadWMTF(cubeName);
cubeTexture->GenerateMipmaps();
mCubeMapInstance = cubeMapEffect->CreateInstance(cubeTexture,
reflectivity, false);
mSphere->SetEffectInstance(mCubeMapInstance);
// Allow culling to be disabled on the sphere so when you move inside
// the sphere, you can see the previously hidden facets and verify that
// the cube image for those facets is correctly oriented.
mSphereCullState = cubeMapEffect->GetCullState(0, 0);
}
//----------------------------------------------------------------------------
void ScreenPolygons::CreateScene ()
{
// The screen camera is designed to map (x,y,z) in [0,1]^3 to (x',y,'z')
// in [-1,1]^2 x [0,1].
mScreenCamera = new0 Camera(false);
mScreenCamera->SetFrustum(0.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f);
mScreenCamera->SetFrame(APoint::ORIGIN, AVector::UNIT_Z, AVector::UNIT_Y,
AVector::UNIT_X);
// Load the biped just for some model to display.
#ifdef WM5_LITTLE_ENDIAN
std::string path = Environment::GetPathR("SkinnedBipedPN.wmof");
#else
std::string path = Environment::GetPathR("SkinnedBipedPN.be.wmof");
#endif
InStream source;
source.Load(path);
mScene = DynamicCast<Node>(source.GetObjectAt(0));
assertion(mScene != 0, "Error in biped stream.\n");
// The background is a textured screen polygon (z = 1).
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_TEXCOORD, VertexFormat::AT_FLOAT2, 0);
int vstride = vformat->GetStride();
VertexBuffer* vbuffer = new0 VertexBuffer(4, vstride);
VertexBufferAccessor vba(vformat, vbuffer);
vba.Position<Float3>(0) = Float3(0.0f, 0.0f, 1.0f);
vba.Position<Float3>(1) = Float3(1.0f, 0.0f, 1.0f);
vba.Position<Float3>(2) = Float3(1.0f, 1.0f, 1.0f);
vba.Position<Float3>(3) = Float3(0.0f, 1.0f, 1.0f);
vba.TCoord<Float2>(0, 0) = Float2(0.0f, 0.0f);
vba.TCoord<Float2>(0, 1) = Float2(1.0f, 0.0f);
vba.TCoord<Float2>(0, 2) = Float2(1.0f, 1.0f);
vba.TCoord<Float2>(0, 3) = Float2(0.0f, 1.0f);
IndexBuffer* ibuffer = new0 IndexBuffer(6, sizeof(int));
int* indices = (int*)ibuffer->GetData();
indices[0] = 0;
indices[1] = 1;
indices[2] = 2;
indices[3] = 0;
indices[4] = 2;
indices[5] = 3;
mBackPoly = new0 TriMesh(vformat, vbuffer, ibuffer);
path = Environment::GetPathR("RedSky.wmtf");
Texture2DEffect* effect = new0 Texture2DEffect(Shader::SF_LINEAR);
Texture2D* texture = Texture2D::LoadWMTF(path);
mBackPoly->SetEffectInstance(effect->CreateInstance(texture));
// The middle polygon, which may be translated via '+' or '-'.
vbuffer = new0 VertexBuffer(4, vstride);
vba.ApplyTo(vformat, vbuffer);
vba.Position<Float3>(0) = Float3(0.0f, 0.3f, 0.0f);
vba.Position<Float3>(1) = Float3(1.0f, 0.3f, 0.0f);
vba.Position<Float3>(2) = Float3(1.0f, 0.7f, 0.0f);
vba.Position<Float3>(3) = Float3(0.0f, 0.7f, 0.0f);
vba.TCoord<Float2>(0, 0) = Float2(0.0f, 0.3f);
vba.TCoord<Float2>(0, 1) = Float2(1.0f, 0.3f);
vba.TCoord<Float2>(0, 2) = Float2(1.0f, 0.7f);
vba.TCoord<Float2>(0, 3) = Float2(0.0f, 0.7f);
mMidPoly = new0 TriMesh(vformat, vbuffer, ibuffer);
path = Environment::GetPathR("BallTexture.wmtf");
texture = Texture2D::LoadWMTF(path);
mMidPoly->SetEffectInstance(effect->CreateInstance(texture));
mLinearZ = 1.0f;
mDepthZ = 1.0f;
mMidPoly->LocalTransform.SetTranslate(APoint(0.0f, 0.0f, mLinearZ));
// A portion of the foreground is a textured screen polygon (z = 0).
vbuffer = new0 VertexBuffer(5, vstride);
vba.ApplyTo(vformat, vbuffer);
vba.Position<Float3>(0) = Float3(0.0f, 0.0f, 0.0f);
vba.Position<Float3>(1) = Float3(0.5f, 0.0f, 0.0f);
vba.Position<Float3>(2) = Float3(0.75f, 0.5f, 0.0f);
vba.Position<Float3>(3) = Float3(0.5f, 0.75f, 0.0f);
vba.Position<Float3>(4) = Float3(0.0f, 0.5f, 0.0f);
vba.TCoord<Float2>(0, 0) = Float2(0.0f, 0.0f);
vba.TCoord<Float2>(0, 1) = Float2(0.67f, 0.0f);
vba.TCoord<Float2>(0, 2) = Float2(1.0f, 0.67f);
vba.TCoord<Float2>(0, 3) = Float2(0.67f, 1.0f);
vba.TCoord<Float2>(0, 4) = Float2(0.0f, 0.67f);
ibuffer = new0 IndexBuffer(9, sizeof(int));
indices = (int*)ibuffer->GetData();
indices[0] = 0;
indices[1] = 1;
indices[2] = 2;
indices[3] = 0;
indices[4] = 2;
indices[5] = 3;
indices[6] = 0;
indices[7] = 3;
indices[8] = 4;
mForePoly = new0 TriMesh(vformat, vbuffer, ibuffer);
path = Environment::GetPathR("Flower.wmtf");
Texture2DEffect* foreEffect = new0 Texture2DEffect(Shader::SF_LINEAR);
texture = Texture2D::LoadWMTF(path);
mForePoly->SetEffectInstance(foreEffect->CreateInstance(texture));
// Make the foreground semitransparent.
foreEffect->GetAlphaState(0, 0)->BlendEnabled = true;
}
//----------------------------------------------------------------------------
void CollisionsBoundTree::CreateScene ()
{
// The root of the scene will have two cylinders as children.
mScene = new0 Node();
mWireState = new0 WireState();
mRenderer->SetOverrideWireState(mWireState);
mCullState = new0 CullState();
mCullState->Enabled = false;
mRenderer->SetOverrideCullState(mCullState);
// Create a texture image to be used by both cylinders.
Texture2D* texture = new0 Texture2D(Texture::TF_A8R8G8B8, 2, 2, 1);
unsigned int* data = (unsigned int*)texture->GetData(0);
data[0] = Color::MakeR8G8B8(0, 0, 255); // blue
data[1] = Color::MakeR8G8B8(0, 255, 255); // cyan
data[2] = Color::MakeR8G8B8(255, 0, 0); // red
data[3] = Color::MakeR8G8B8(255, 255, 0); // yellow
Texture2DEffect* effect = new0 Texture2DEffect(Shader::SF_LINEAR);
// Create two cylinders, one short and thick, one tall and thin.
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_TEXCOORD, VertexFormat::AT_FLOAT2, 0);
StandardMesh sm(vformat);
VertexBufferAccessor vba;
int i;
mCylinder0 = sm.Cylinder(8, 16, 1.0f, 2.0f, false);
vba.ApplyTo(mCylinder0);
for (i = 0; i < vba.GetNumVertices(); ++i)
{
vba.TCoord<Float2>(0, i) = mBlueUV;
}
mCylinder0->SetEffectInstance(effect->CreateInstance(texture));
mScene->AttachChild(mCylinder0);
mCylinder1 = sm.Cylinder(16,8,0.25,4.0,false);
vba.ApplyTo(mCylinder1);
for (i = 0; i < vba.GetNumVertices(); ++i)
{
vba.TCoord<Float2>(0, i) = mRedUV;
}
mCylinder1->SetEffectInstance(effect->CreateInstance(texture));
mScene->AttachChild(mCylinder1);
mScene->Update();
// Set up the collision system. Record0 handles the collision response.
// Record1 is not given a callback so that 'double processing' of the
// events does not occur.
CTree* tree0 = new0 CTree(mCylinder0, 1, false);
CRecord* record0 = new0 CRecord(tree0, 0, Response, this);
CTree* tree1 = new0 CTree(mCylinder1, 1, false);
CRecord* record1 = new0 CRecord(tree1, 0, 0, 0);
mGroup = new0 CGroup();
mGroup->Add(record0);
mGroup->Add(record1);
ResetColors();
mGroup->TestIntersection();
}
//----------------------------------------------------------------------------
void Terrains::CreateScene ()
{
// Create the root of the scene.
mScene = new0 Node();
// Load and initialize the sky dome. It follows the camera.
std::string skyMeshName = Environment::GetPathR("SkyDomePNT2.wmvf");
Visual::PrimitiveType type;
VertexFormat* vformat;
VertexBuffer* vbuffer;
IndexBuffer* ibuffer;
Visual::LoadWMVF(skyMeshName, type, vformat, vbuffer, ibuffer);
mSkyDome = new0 TriMesh(vformat, vbuffer, ibuffer);
mScene->AttachChild(mSkyDome);
APoint skyPosition = mCamera->GetPosition();
skyPosition[2] = 0.0f;
mSkyDome->LocalTransform.SetTranslate(skyPosition);
mSkyDome->LocalTransform.SetUniformScale(mCamera->GetDMax());
Texture2DEffect* skyEffect = new0 Texture2DEffect(
Shader::SF_LINEAR_LINEAR, Shader::SC_REPEAT, Shader::SC_REPEAT);
std::string skyTextureName = Environment::GetPathR("SkyDome.wmtf");
Texture2D* skyTexture = Texture2D::LoadWMTF(skyTextureName);
skyTexture->GenerateMipmaps();
mSkyDome->SetEffectInstance(skyEffect->CreateInstance(skyTexture));
// Load the height field and create the terrain.
vformat = VertexFormat::Create(3,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_TEXCOORD, VertexFormat::AT_FLOAT2, 0,
VertexFormat::AU_TEXCOORD, VertexFormat::AT_FLOAT2, 1);
// For lower-resolution terrain, change the paths to Height64/Color64 or
// Height32/Color32.
std::string heightName = ThePath + "Data/Height128/height";
std::string colorName = ThePath + "Data/Color128/color";
mTerrain = new0 Terrain(heightName, vformat, mCamera);
mScene->AttachChild(mTerrain);
// The effect that is shared across all pages.
std::string effectFile =
Environment::GetPathR("BaseMulDetailFogExpSqr.wmfx");
TerrainEffect* terrainEffect = new0 TerrainEffect(effectFile);
std::string detailName = Environment::GetPathR("Detail.wmtf");
Texture2D* detailTexture = Texture2D::LoadWMTF(detailName);
detailTexture->GenerateMipmaps();
ShaderFloat* fogColorDensity = new0 ShaderFloat(1);
(*fogColorDensity)[0] = 0.5686f;
(*fogColorDensity)[1] = 0.7255f;
(*fogColorDensity)[2] = 0.8353f;
(*fogColorDensity)[3] = 0.0015f;
// Attach an effect to each page. Preload all resources to video memory.
// This will avoid frame rate stalls when new terrain pages are
// encountered as the camera moves.
const int numRows = mTerrain->GetRowQuantity();
const int numCols = mTerrain->GetColQuantity();
for (int r = 0; r < numRows; ++r)
{
for (int c = 0; c < numCols; ++c)
{
TerrainPage* page = mTerrain->GetPage(r, c);
char suffix[32];
sprintf(suffix, ".%d.%d.wmtf", r, c);
std::string colorTextureName = colorName + std::string(suffix);
Texture2D* colorTexture = Texture2D::LoadWMTF(colorTextureName);
colorTexture->GenerateMipmaps();
VisualEffectInstance* instance = terrainEffect->CreateInstance(
colorTexture, detailTexture, fogColorDensity);
page->SetEffectInstance(instance);
mRenderer->Bind(page->GetVertexBuffer());
mRenderer->Bind(page->GetVertexFormat());
mRenderer->Bind(page->GetIndexBuffer());
mRenderer->Bind(colorTexture);
}
}
}
//----------------------------------------------------------------------------
void ClodMeshes::CreateScene ()
{
mScene = new0 Node();
mTrnNode = new0 Node();
mScene->AttachChild(mTrnNode);
mWireState = new0 WireState();
mRenderer->SetOverrideWireState(mWireState);
// Load the face model.
#ifdef WM5_LITTLE_ENDIAN
std::string path = Environment::GetPathR("FacePN.wmof");
#else
std::string path = Environment::GetPathR("FacePN.be.wmof");
#endif
InStream inStream;
inStream.Load(path);
TriMeshPtr mesh = StaticCast<TriMesh>(inStream.GetObjectAt(0));
VertexBufferAccessor vba0(mesh);
// Remove the normals and add texture coordinates.
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_TEXCOORD, VertexFormat::AT_FLOAT2, 0);
int vstride = vformat->GetStride();
VertexBuffer* vbuffer = new0 VertexBuffer(vba0.GetNumVertices(), vstride);
VertexBufferAccessor vba1(vformat, vbuffer);
float xmin = Mathf::MAX_REAL, xmax = -Mathf::MAX_REAL;
float ymin = Mathf::MAX_REAL, ymax = -Mathf::MAX_REAL;
int i;
for (i = 0; i < vba0.GetNumVertices(); ++i)
{
Float3 position = vba0.Position<Float3>(i);
vba1.Position<Float3>(i) = position;
float x = position[0];
float y = position[2];
vba1.TCoord<Float2>(0, i) = Float2(x, y);
if (x < xmin)
{
xmin = x;
}
if (x > xmax)
{
xmax = x;
}
if (y < ymin)
{
ymin = y;
}
if (y > ymax)
{
ymax = y;
}
}
float xmult = 1.0f/(xmax - xmin);
float ymult = 1.0f/(ymax - ymin);
for (i = 0; i < vba1.GetNumVertices(); ++i)
{
Float2 tcoord = vba1.TCoord<Float2>(0, i);
vba1.TCoord<Float2>(0,i) = Float2(
(tcoord[0] - xmin)*xmult,
(tcoord[1] - ymin)*ymult);
}
mesh->SetVertexFormat(vformat);
mesh->SetVertexBuffer(vbuffer);
// Create a texture for the face. Use the generated texture coordinates.
Texture2DEffect* effect = new0 Texture2DEffect(Shader::SF_LINEAR);
path = Environment::GetPathR("Magician.wmtf");
Texture2D* texture = Texture2D::LoadWMTF(path);
#ifdef USE_CLOD_MESH
// Create the collapse records to be shared by two CLOD meshes.
int numRecords = 0;
CollapseRecord* records = 0;
CreateClodMesh ccm(mesh, numRecords, records);
CollapseRecordArray* recordArray = new0 CollapseRecordArray(numRecords,
records);
mClod[0] = new0 ClodMesh(mesh, recordArray);
mClod[0]->LocalTransform = mesh->LocalTransform;
mClod[0]->LocalTransform.SetTranslate(mesh->LocalTransform.GetTranslate()
- 150.0f*AVector::UNIT_X);
mClod[0]->SetEffectInstance(effect->CreateInstance(texture));
mTrnNode->AttachChild(mClod[0]);
mClod[1] = new0 ClodMesh(mesh, recordArray);
mClod[1]->LocalTransform = mesh->LocalTransform;
mClod[1]->LocalTransform.SetTranslate(mesh->LocalTransform.GetTranslate()
+ 150.0f*AVector::UNIT_X - 100.0f*AVector::UNIT_Y);
mClod[1]->SetEffectInstance(effect->CreateInstance(texture));
mTrnNode->AttachChild(mClod[1]);
mActive = mClod[0];
#else
IndexBuffer* ibuffer = mesh->GetIndexBuffer();
TriMesh* face = new0 TriMesh(vformat, vbuffer,ibuffer);
face->LocalTransform = mesh->LocalTransform;
face->LocalTransform.SetTranslate(mesh->LocalTransform.GetTranslate() -
150.0f*AVector::UNIT_X);
face->SetEffectInstance(effect->CreateInstance(texture));
mTrnNode->AttachChild(face);
face = new0 TriMesh(vformat, vbuffer, ibuffer);
face->LocalTransform = mesh->LocalTransform;
face->LocalTransform.SetTranslate(mesh->LocalTransform.GetTranslate() +
150.0f*AVector::UNIT_X);
face->SetEffectInstance(effect->CreateInstance(texture));
mTrnNode->AttachChild(face);
#endif
}
//----------------------------------------------------------------------------
void BillboardNodes::CreateScene ()
{
mScene = new0 Node();
mCullState = new0 CullState();
mRenderer->SetOverrideCullState(mCullState);
mWireState = new0 WireState();
mRenderer->SetOverrideWireState(mWireState);
// All triangle meshes have this common vertex format. Use StandardMesh
// to create these meshes.
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_TEXCOORD, VertexFormat::AT_FLOAT2, 0);
StandardMesh stdMesh(vformat);
// Create the ground. It covers a square with vertices (1,1,0), (1,-1,0),
// (-1,1,0), and (-1,-1,0). Multiply the texture coordinates by a factor
// to enhance the wrap-around.
mGround = stdMesh.Rectangle(2, 2, 16.0f, 16.0f);
VertexBufferAccessor vba(mGround);
int i;
for (i = 0; i < vba.GetNumVertices(); ++i)
{
Float2& tcoord = vba.TCoord<Float2>(0, i);
tcoord[0] *= 128.0f;
tcoord[1] *= 128.0f;
}
// Create a texture effect for the ground.
std::string path = Environment::GetPathR("Horizontal.wmtf");
Texture2D* texture = Texture2D::LoadWMTF(path);
VisualEffectInstance* instance = Texture2DEffect::CreateUniqueInstance(
texture, Shader::SF_LINEAR_LINEAR, Shader::SC_REPEAT,
Shader::SC_REPEAT);
mGround->SetEffectInstance(instance);
mScene->AttachChild(mGround);
// Create a rectangle mesh. The mesh is in the xy-plane. Do not apply
// local transformations to the mesh. Use the billboard node transforms
// to control the mesh location and orientation.
mRectangle = stdMesh.Rectangle(2, 2, 0.125f, 0.25f);
// Create a texture effect for the rectangle and for the torus.
Texture2DEffect* geomEffect = new0 Texture2DEffect(Shader::SF_LINEAR);
path = Environment::GetPathR("RedSky.wmtf");
texture = Texture2D::LoadWMTF(path);
mRectangle->SetEffectInstance(geomEffect->CreateInstance(texture));
// Create a billboard node that causes a rectangle to always be facing
// the camera. This is the type of billboard for an avatar.
mBillboard0 = new0 BillboardNode(mCamera);
mBillboard0->AttachChild(mRectangle);
mScene->AttachChild(mBillboard0);
// The billboard rotation is about its model-space up-vector (0,1,0). In
// this application, world-space up is (0,0,1). Locally rotate the
// billboard so it's up-vector matches the world's.
mBillboard0->LocalTransform.SetTranslate(APoint(-0.25f, 0.0f, 0.25f));
mBillboard0->LocalTransform.SetRotate(HMatrix(AVector::UNIT_X,
Mathf::HALF_PI));
// Create a torus mesh. Do not apply local transformations to the mesh.
// Use the billboard node transforms to control the mesh location and
// orientation.
mTorus = StandardMesh(vformat, false).Torus(16, 16, 1.0f, 0.25f);
mTorus->LocalTransform.SetUniformScale(0.1f);
// Create a texture effect for the torus. It uses the RedSky image that
// the rectangle uses.
mTorus->SetEffectInstance(geomEffect->CreateInstance(texture));
// Create a billboard node that causes an object to always be oriented
// the same way relative to the camera.
mBillboard1 = new0 BillboardNode(mCamera);
mBillboard1->AttachChild(mTorus);
mScene->AttachChild(mBillboard1);
// The billboard rotation is about its model-space up-vector (0,1,0). In
// this application, world-space up is (0,0,1). Locally rotate the
// billboard so it's up-vector matches the world's.
mBillboard1->LocalTransform.SetTranslate(APoint(0.25f, 0.0f, 0.25f));
mBillboard1->LocalTransform.SetRotate(HMatrix(AVector::UNIT_X,
Mathf::HALF_PI));
#ifdef DEMONSTRATE_VIEWPORT_BOUNDING_RECTANGLE
// The screen camera is designed to map (x,y,z) in [0,1]^3 to (x',y,'z')
// in [-1,1]^2 x [0,1].
mSSCamera = new0 Camera(false);
mSSCamera->SetFrustum(0.0f, 1.0f, 0.0f, 1.0f, 0.0f, 1.0f);
mSSCamera->SetFrame(APoint::ORIGIN, AVector::UNIT_Z, AVector::UNIT_Y,
AVector::UNIT_X);
// Create a semitransparent screen rectangle.
VertexFormat* ssVFormat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_COLOR, VertexFormat::AT_FLOAT4, 0);
int ssVStride = ssVFormat->GetStride();
VertexBuffer* ssVBuffer = new0 VertexBuffer(4, ssVStride);
VertexBufferAccessor ssVba(ssVFormat, ssVBuffer);
Float4 ssColor(0.0f, 0.0f, 1.0f, 0.25f);
ssVba.Position<Float3>(0) = Float3(0.0f, 0.0f, 0.0f);
ssVba.Position<Float3>(1) = Float3(1.0f, 0.0f, 0.0f);
ssVba.Position<Float3>(2) = Float3(1.0f, 1.0f, 0.0f);
ssVba.Position<Float3>(3) = Float3(0.0f, 1.0f, 0.0f);
ssVba.Color<Float4>(0, 0) = ssColor;
ssVba.Color<Float4>(0, 1) = ssColor;
ssVba.Color<Float4>(0, 2) = ssColor;
ssVba.Color<Float4>(0, 3) = ssColor;
IndexBuffer* ssIBuffer = new0 IndexBuffer(6, sizeof(int));
int* indices = (int*)ssIBuffer->GetData();
indices[0] = 0; indices[1] = 1; indices[2] = 2;
indices[3] = 0; indices[4] = 2; indices[5] = 3;
mSSRectangle = new0 TriMesh(ssVFormat, ssVBuffer, ssIBuffer);
mSSRectangle->Update();
// Create a vertex color effect for the screen rectangle.
VertexColor4Effect* ssEffect = new0 VertexColor4Effect();
mSSRectangle->SetEffectInstance(ssEffect->CreateInstance());
// Alpha blending must be enabled to obtain the semitransparency.
ssEffect->GetAlphaState(0, 0)->BlendEnabled = true;
#endif
}
//----------------------------------------------------------------------------
void ParticleSystems::CreateScene ()
{
mScene = new0 Node();
mWireState = new0 WireState();
mRenderer->SetOverrideWireState(mWireState);
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_TEXCOORD, VertexFormat::AT_FLOAT2, 0);
int vstride = vformat->GetStride();
const int numParticles = 32;
VertexBuffer* vbuffer = new0 VertexBuffer(4*numParticles, vstride);
Float4* positionSizes = new1<Float4>(numParticles);
for (int i = 0; i < numParticles; ++i)
{
positionSizes[i][0] = Mathf::SymmetricRandom();
positionSizes[i][1] = Mathf::SymmetricRandom();
positionSizes[i][2] = Mathf::SymmetricRandom();
positionSizes[i][3] = 0.25f*Mathf::UnitRandom();
}
Particles* particles = new0 Particles(vformat, vbuffer, sizeof(int),
positionSizes, 1.0f);
particles->AttachController(new0 BloodCellController());
mScene->AttachChild(particles);
// Create an image with transparency.
const int xsize = 32, ysize = 32;
Texture2D* texture = new0 Texture2D(Texture::TF_A8R8G8B8, xsize,
ysize, 1);
unsigned char* data = (unsigned char*)texture->GetData(0);
float factor = 1.0f/(xsize*xsize + ysize*ysize);
for (int y = 0, i = 0; y < ysize; ++y)
{
for (int x = 0; x < xsize; ++x)
{
// The image is red.
data[i++] = 0;
data[i++] = 0;
data[i++] = 255;
// Semitransparent within a disk, dropping off to zero outside the
// disk.
int dx = 2*x - xsize;
int dy = 2*y - ysize;
float value = factor*(dx*dx + dy*dy);
if (value < 0.125f)
{
value = Mathf::Cos(4.0f*Mathf::PI*value);
}
else
{
value = 0.0f;
}
data[i++] = (unsigned char)(255.0f*value);
}
}
Texture2DEffect* effect = new0 Texture2DEffect(Shader::SF_LINEAR);
effect->GetAlphaState(0, 0)->BlendEnabled = true;
effect->GetDepthState(0, 0)->Enabled = false;
particles->SetEffectInstance(effect->CreateInstance(texture));
}
//----------------------------------------------------------------------------
void SwitchNodes::CreateScene ()
{
mScene = new0 Node();
mWireState = new0 WireState();
mRenderer->SetOverrideWireState(mWireState);
mSwitch = new0 SwitchNode();
mScene->AttachChild(mSwitch);
// Texture effect to be shared by all objects.
Texture2DEffect* effect = new0 Texture2DEffect(Shader::SF_LINEAR);
std::string path = Environment::GetPathR("Flower.wmtf");
Texture2D* texture = Texture2D::LoadWMTF(path);
// Create the children of the switch node.
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_TEXCOORD, VertexFormat::AT_FLOAT2, 0);
StandardMesh sm(vformat);
// Create a rectangle mesh (child 0).
TriMesh* mesh = sm.Rectangle(4, 4, 1.0f, 1.0f);
mesh->SetEffectInstance(effect->CreateInstance(texture));
mSwitch->AttachChild(mesh);
// Create a disk mesh (child 1).
mesh = sm.Disk(8,16,1.0f);
mesh->SetEffectInstance(effect->CreateInstance(texture));
mSwitch->AttachChild(mesh);
// Create a box mesh (child 2).
mesh = sm.Box(1.0f,0.5f,0.25f);
mesh->SetEffectInstance(effect->CreateInstance(texture));
mSwitch->AttachChild(mesh);
// Create a closed cylinder mesh (child 3).
mesh = sm.Cylinder(8,16,1.0f,2.0f,false);
mesh->SetEffectInstance(effect->CreateInstance(texture));
mSwitch->AttachChild(mesh);
// Create a sphere mesh (child 4).
mesh = sm.Sphere(32,16,1.0f);
mesh->SetEffectInstance(effect->CreateInstance(texture));
mSwitch->AttachChild(mesh);
// Create a torus mesh (child 5).
mesh = sm.Torus(16,16,1.0f,0.25f);
mesh->SetEffectInstance(effect->CreateInstance(texture));
mSwitch->AttachChild(mesh);
// Create a tetrahedron (child 6).
mesh = sm.Tetrahedron();
mesh->SetEffectInstance(effect->CreateInstance(texture));
mSwitch->AttachChild(mesh);
// Create a hexahedron (child 7).
mesh = sm.Hexahedron();
mesh->SetEffectInstance(effect->CreateInstance(texture));
mSwitch->AttachChild(mesh);
// Create an octahedron (child 8).
mesh = sm.Octahedron();
mesh->SetEffectInstance(effect->CreateInstance(texture));
mSwitch->AttachChild(mesh);
// Create a dodecahedron (child 9).
mesh = sm.Dodecahedron();
mesh->SetEffectInstance(effect->CreateInstance(texture));
mSwitch->AttachChild(mesh);
// Create an icosahedron (child 10).
mesh = sm.Icosahedron();
mesh->SetEffectInstance(effect->CreateInstance(texture));
mSwitch->AttachChild(mesh);
// Set the active child (otherwise it is invalid).
mSwitch->SetActiveChild(0);
}
//----------------------------------------------------------------------------
void BspNodes::CreateScene ()
{
// Create the scene graph.
//
// 1. The rectangles represent the BSP planes of the BSP tree. They
// share a VertexColor3Effect. You can see a plane from either side
// (backface culling disabled). The planes do not interfere with view
// of the solid objects (wirestate enabled).
//
// 2. The sphere, tetrahedron, and cube share a TextureEffect. These
// objects are convex. The backfacing triangles are discarded
// (backface culling enabled). The front facing triangles are drawn
// correctly by convexity, so depthbuffer reads are disabled and
// depthbuffer writes are enabled. The BSP-based sorting of objects
// guarantees that front faces of convex objects in the foreground
// are drawn after the front faces of convex objects in the background,
// which allows us to set the depthbuffer state as we have. That is,
// BSPNode sorts from back to front.
//
// 3. The torus has backface culling enabled and depth buffering enabled.
// This is necessary, because the torus is not convex.
//
// 4. Generally, if all objects are opaque, then you want to draw from
// front to back with depth buffering fully enabled. You need to
// reverse-order the elements of the visible set before drawing. If
// any of the objects are semitransparent, then drawing back to front
// is the correct order to handle transparency. However, you do not
// get the benefit of early z-rejection for opaque objects. A better
// BSP sorter needs to be built to produce a visible set with opaque
// objects listed first (front-to-back order) and semitransparent
// objects listed last (back-to-front order).
//
// scene
// ground
// bsp0
// bsp1
// bsp3
// torus
// rectangle3
// sphere
// rectangle1
// tetrahedron
// rectangle0
// bsp2
// cube
// rectangle2
// octahedron
mScene = new0 Node();
// Create the ground. It covers a square with vertices (1,1,0), (1,-1,0),
// (-1,1,0), and (-1,-1,0). Multiply the texture coordinates by a factor
// to enhance the wrap-around.
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_TEXCOORD, VertexFormat::AT_FLOAT2, 0);
StandardMesh sm(vformat);
VertexBufferAccessor vba;
TriMesh* ground = sm.Rectangle(2, 2, 16.0f, 16.0f);
vba.ApplyTo(ground);
for (int i = 0; i < vba.GetNumVertices(); ++i)
{
Float2& tcoord = vba.TCoord<Float2>(0, i);
tcoord[0] *= 128.0f;
tcoord[1] *= 128.0f;
}
std::string path = Environment::GetPathR("Horizontal.wmtf");
Texture2D* texture = Texture2D::LoadWMTF(path);
ground->SetEffectInstance(Texture2DEffect::CreateUniqueInstance(texture,
Shader::SF_LINEAR_LINEAR, Shader::SC_REPEAT, Shader::SC_REPEAT));
mScene->AttachChild(ground);
// Partition the region above the ground into 5 convex pieces. Each plane
// is perpendicular to the ground (not required generally).
VertexColor3Effect* vceffect = new0 VertexColor3Effect();
vceffect->GetCullState(0, 0)->Enabled = false;
vceffect->GetWireState(0, 0)->Enabled = true;
Vector2f v0(-1.0f, 1.0f);
Vector2f v1(1.0f, -1.0f);
Vector2f v2(-0.25f, 0.25f);
Vector2f v3(-1.0f, -1.0f);
Vector2f v4(0.0f, 0.0f);
Vector2f v5(1.0f, 0.5f);
Vector2f v6(-0.75f, -7.0f/12.0f);
Vector2f v7(-0.75f, 0.75f);
Vector2f v8(1.0f, 1.0f);
BspNode* bsp0 = CreateNode(v0, v1, vceffect, Float3(1.0f, 0.0f, 0.0f));
BspNode* bsp1 = CreateNode(v2, v3, vceffect, Float3(0.0f, 0.5f, 0.0f));
BspNode* bsp2 = CreateNode(v4, v5, vceffect, Float3(0.0f, 0.0f, 1.0f));
BspNode* bsp3 = CreateNode(v6, v7, vceffect, Float3(0.0f, 0.0f, 0.0f));
bsp0->AttachPositiveChild(bsp1);
bsp0->AttachNegativeChild(bsp2);
bsp1->AttachPositiveChild(bsp3);
// Attach an object in each convex region.
float height = 0.1f;
Vector2f center;
TriMesh* mesh;
// The texture effect for the convex objects.
Texture2DEffect* cvxeffect =
new0 Texture2DEffect(Shader::SF_LINEAR_LINEAR);
cvxeffect->GetDepthState(0, 0)->Enabled = false;
cvxeffect->GetDepthState(0, 0)->Writable = true;
// The texture effect for the torus.
Texture2DEffect* toreffect =
new0 Texture2DEffect(Shader::SF_LINEAR_LINEAR);
// The texture image shared by the objects.
path = Environment::GetPathR("Flower.wmtf");
texture = Texture2D::LoadWMTF(path);
// Region 0: Create a torus mesh.
mesh = sm.Torus(16, 16, 1.0f, 0.25f);
mesh->SetEffectInstance(toreffect->CreateInstance(texture));
mesh->LocalTransform.SetUniformScale(0.1f);
center = (v2 + v6 + v7)/3.0f;
mesh->LocalTransform.SetTranslate(APoint(center[0], center[1], height));
bsp3->AttachPositiveChild(mesh);
// Region 1: Create a sphere mesh.
mesh = sm.Sphere(32, 16, 1.0f);
mesh->SetEffectInstance(cvxeffect->CreateInstance(texture));
mesh->LocalTransform.SetUniformScale(0.1f);
center = (v0 + v3 + v6 + v7)/4.0f;
mesh->LocalTransform.SetTranslate(APoint(center[0], center[1], height));
bsp3->AttachNegativeChild(mesh);
// Region 2: Create a tetrahedron.
mesh = sm.Tetrahedron();
mesh->SetEffectInstance(cvxeffect->CreateInstance(texture));
mesh->LocalTransform.SetUniformScale(0.1f);
center = (v1 + v2 + v3)/3.0f;
mesh->LocalTransform.SetTranslate(APoint(center[0], center[1], height));
bsp1->AttachNegativeChild(mesh);
// Region 3: Create a hexahedron (cube).
mesh = sm.Hexahedron();
mesh->SetEffectInstance(cvxeffect->CreateInstance(texture));
mesh->LocalTransform.SetUniformScale(0.1f);
center = (v1 + v4 + v5)/3.0f;
mesh->LocalTransform.SetTranslate(APoint(center[0], center[1], height));
bsp2->AttachPositiveChild(mesh);
// Region 4: Create an octahedron.
mesh = sm.Octahedron();
mesh->SetEffectInstance(cvxeffect->CreateInstance(texture));
mesh->LocalTransform.SetUniformScale(0.1f);
center = (v0 + v4 + v5 + v8)/4.0f;
mesh->LocalTransform.SetTranslate(APoint(center[0], center[1], height));
bsp2->AttachNegativeChild(mesh);
mScene->AttachChild(bsp0);
}
