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// Geometric Tools, LLC
// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.0 (2010/01/01)
#include "DlodNodes.h"
WM5_WINDOW_APPLICATION(DlodNodes);
//----------------------------------------------------------------------------
DlodNodes::DlodNodes ()
:
WindowApplication3("SampleGraphics/DlodNodes", 0, 0, 640, 480,
Float4(0.5f, 0.0f, 1.0f, 1.0f)),
mTextColor(1.0f, 1.0f, 1.0f, 1.0f)
{
}
//----------------------------------------------------------------------------
bool DlodNodes::OnInitialize ()
{
if (!WindowApplication3::OnInitialize())
{
return false;
}
// Set up the camera.
mCamera->SetFrustum(60.0f, GetAspectRatio(), 1.0f, 100.0f);
APoint camPosition(0.0f, -4.0f, 0.0f);
AVector camDVector(0.0f, 1.0f, 0.0f);
AVector camUVector(0.0f, 0.0f, 1.0f);
AVector camRVector = camDVector.Cross(camUVector);
mCamera->SetFrame(camPosition, camDVector, camUVector, camRVector);
CreateScene();
// Initial update of objects.
mScene->Update();
// Initial culling of scene.
mCuller.SetCamera(mCamera);
mCuller.ComputeVisibleSet(mScene);
InitializeCameraMotion(0.01f, 0.001f);
InitializeObjectMotion(mScene);
return true;
}
//----------------------------------------------------------------------------
void DlodNodes::OnTerminate ()
{
mScene = 0;
mDlod = 0;
mWireState = 0;
WindowApplication3::OnTerminate();
}
//----------------------------------------------------------------------------
void DlodNodes::OnIdle ()
{
MeasureTime();
if (MoveCamera())
{
mCuller.ComputeVisibleSet(mScene);
}
if (MoveObject())
{
mScene->Update();
mCuller.ComputeVisibleSet(mScene);
}
if (mRenderer->PreDraw())
{
mRenderer->ClearBuffers();
mRenderer->Draw(mCuller.GetVisibleSet());
DrawFrameRate(8, GetHeight()-8, mTextColor);
mRenderer->PostDraw();
mRenderer->DisplayColorBuffer();
}
UpdateFrameCount();
}
//----------------------------------------------------------------------------
bool DlodNodes::OnKeyDown (unsigned char key, int x, int y)
{
if (WindowApplication3::OnKeyDown(key, x, y))
{
return true;
}
switch (key)
{
case 'w':
case 'W':
mWireState->Enabled = !mWireState->Enabled;
return true;
}
return false;
}
//----------------------------------------------------------------------------
void DlodNodes::CreateScene ()
{
mScene = new0 Node();
mWireState = new0 WireState();
mRenderer->SetOverrideWireState(mWireState);
const int numLevelsOfDetail = 6; // the number of children of mDlod
mDlod = new0 DlodNode(numLevelsOfDetail);
mScene->AttachChild(mDlod);
// A lighting effect to be shared by all objects.
Light* light = new0 Light(Light::LT_DIRECTIONAL);
light->Ambient = Float4(0.5f, 0.5f, 0.5f, 1.0f);
light->Diffuse = Float4(1.0f, 1.0f, 1.0f, 1.0f);
light->Specular = Float4(0.0f, 0.0f, 0.0f, 0.0f);
light->DVector = AVector::UNIT_Y;
Material* material = new0 Material();
material->Diffuse = Float4(0.5f, 0.0f, 0.5f, 1.0f);
LightDirPerVerEffect* effect = new0 LightDirPerVerEffect();
// Create the children of the DLOD node.
VertexFormat* vformat = VertexFormat::Create(2,
VertexFormat::AU_POSITION, VertexFormat::AT_FLOAT3, 0,
VertexFormat::AU_NORMAL, VertexFormat::AT_FLOAT3, 0);
StandardMesh sm(vformat);
// Create a sphere mesh (child 0).
TriMesh* mesh = sm.Sphere(32, 16, 1.0f);
mesh->SetEffectInstance(effect->CreateInstance(light, material));
mDlod->AttachChild(mesh);
// Create an icosahedron (child 1).
mesh = sm.Icosahedron();
mesh->SetEffectInstance(effect->CreateInstance(light, material));
mDlod->AttachChild(mesh);
// Create a dodecahedron (child 2).
mesh = sm.Dodecahedron();
mesh->SetEffectInstance(effect->CreateInstance(light, material));
mDlod->AttachChild(mesh);
// Create an octahedron (child 3).
mesh = sm.Octahedron();
mesh->SetEffectInstance(effect->CreateInstance(light, material));
mDlod->AttachChild(mesh);
// Create a hexahedron (child 4).
mesh = sm.Hexahedron();
mesh->SetEffectInstance(effect->CreateInstance(light, material));
mDlod->AttachChild(mesh);
// Create a tetrahedron (child 5).
mesh = sm.Tetrahedron();
mesh->SetEffectInstance(effect->CreateInstance(light, material));
mDlod->AttachChild(mesh);
// Set the distance intervals for switching the active child.
mDlod->SetModelDistance(0, 0.0f, 10.0f);
mDlod->SetModelDistance(1, 10.0f, 20.0f);
mDlod->SetModelDistance(2, 20.0f, 30.0f);
mDlod->SetModelDistance(3, 30.0f, 40.0f);
mDlod->SetModelDistance(4, 40.0f, 50.0f);
mDlod->SetModelDistance(5, 50.0f, 100.0f);
// Set the model level-of-detail center.
mDlod->ModelCenter() = APoint::ORIGIN;
}
//----------------------------------------------------------------------------
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