GLvoid NEHE22::InitGL(){
multitextureSupported=initMultitexture();
if(!LoadGLTextures()){
cout<<"Fail to load textures"<<endl;
}
// Enable Texture Mapping
glEnable(GL_TEXTURE_2D);
// Enables Smooth Shading
glShadeModel(GL_SMOOTH);
// clear background as black
glClearColor(0.0f,0.0f,0.0f,0.5f);
glClearDepth(1.0f);
glEnable(GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
// want the best perspective correction to be done
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
initLights();
}
int InitGL(GLvoid) // All Setup For OpenGL Goes Here
{
multitextureSupported=initMultitexture();
if (!LoadGLTextures()) return false; // Jump To Texture Loading Routine
glEnable(GL_TEXTURE_2D); // Enable Texture Mapping
glShadeModel(GL_SMOOTH); // Enable Smooth Shading
glClearColor(0.0f, 0.0f, 0.0f, 0.5f); // Black Background
glClearDepth(1.0f); // Depth Buffer Setup
glEnable(GL_DEPTH_TEST); // Enables Depth Testing
glDepthFunc(GL_LEQUAL); // The Type Of Depth Testing To Do
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST); // Really Nice Perspective Calculations
initLights(); // Initialize OpenGL Light
return true; // Initialization Went OK
}
void Terrain::GenerateHeightMap(int Iterations, double Height, double HDecay)
{
HeightMap.calculate(Iterations, Height, HDecay);
int Select = 1 + rand() % (4 - 1 + 1);
// Load .3DS file into model structure
if(Select == 1)
{
GenerateTerrainObjects(50, 2 , 40, 10);
g_Load3ds.Import3DS(&g_3DModel, "Textures/Tilesets/Desert/Models/PILLAR.3DS");
double Ratio = 0.25;
O1Offset = 0.0f;
BuildLists(Ratio, 1, g_3DModel);
for(int i = 0; i < g_3DModel.numOfObjects; i++)
{
// Free the faces, normals, vertices, and texture coordinates.
delete [] g_3DModel.pObject[i].pFaces;
delete [] g_3DModel.pObject[i].pNormals;
delete [] g_3DModel.pObject[i].pVerts;
delete [] g_3DModel.pObject[i].pTexVerts;
}
g_Load3ds.Import3DS(&g_3DModel1, "Textures/Tilesets/Desert/Models/STATUE.3DS");
Ratio = 0.25;
O1Offset = 0.0f;
BuildLists(Ratio, 2, g_3DModel1);
// Go through all the objects in the scene
for(int i = 0; i < g_3DModel1.numOfObjects; i++)
{
// Free the faces, normals, vertices, and texture coordinates.
delete [] g_3DModel1.pObject[i].pFaces;
delete [] g_3DModel1.pObject[i].pNormals;
delete [] g_3DModel1.pObject[i].pVerts;
delete [] g_3DModel1.pObject[i].pTexVerts;
}
}
else if(Select == 2)
{
GenerateTerrainObjects(100, 2 , 50, 50);
g_Load3ds.Import3DS(&g_3DModel, "Textures/Tilesets/Mountains/Models/PINE.3DS");
double Ratio = 0.25;
O1Offset = 15.5f;
BuildLists(Ratio, 1, g_3DModel);
for(int i = 0; i < g_3DModel.numOfObjects; i++)
{
// Free the faces, normals, vertices, and texture coordinates.
delete [] g_3DModel.pObject[i].pFaces;
delete [] g_3DModel.pObject[i].pNormals;
delete [] g_3DModel.pObject[i].pVerts;
delete [] g_3DModel.pObject[i].pTexVerts;
}
g_Load3ds.Import3DS(&g_3DModel1, "Textures/Tilesets/Mountains/Models/MAPLE.3DS");
Ratio = 5.0;
O2Offset = 0.0f;
BuildLists(Ratio, 2, g_3DModel1);
// Go through all the objects in the scene
for(int i = 0; i < g_3DModel1.numOfObjects; i++)
{
// Free the faces, normals, vertices, and texture coordinates.
delete [] g_3DModel1.pObject[i].pFaces;
delete [] g_3DModel1.pObject[i].pNormals;
delete [] g_3DModel1.pObject[i].pVerts;
delete [] g_3DModel1.pObject[i].pTexVerts;
}
}
else if(Select == 3)
{
GenerateTerrainObjects(100, 2 , 50, 50);
g_Load3ds.Import3DS(&g_3DModel, "Textures/Tilesets/Tropics/Models/TREE3.3DS");
double Ratio = 0.5;
O1Offset = 0.0f;
BuildLists(Ratio, 1, g_3DModel);
for(int i = 0; i < g_3DModel.numOfObjects; i++)
{
// Free the faces, normals, vertices, and texture coordinates.
delete [] g_3DModel.pObject[i].pFaces;
delete [] g_3DModel.pObject[i].pNormals;
delete [] g_3DModel.pObject[i].pVerts;
delete [] g_3DModel.pObject[i].pTexVerts;
}
g_Load3ds.Import3DS(&g_3DModel1, "Textures/Tilesets/Tropics/Models/PALM.3DS");
Ratio = 0.75;
O2Offset = 10.0f;
BuildLists(Ratio, 2, g_3DModel1);
// Go through all the objects in the scene
for(int i = 0; i < g_3DModel1.numOfObjects; i++)
{
// Free the faces, normals, vertices, and texture coordinates.
delete [] g_3DModel1.pObject[i].pFaces;
delete [] g_3DModel1.pObject[i].pNormals;
delete [] g_3DModel1.pObject[i].pVerts;
delete [] g_3DModel1.pObject[i].pTexVerts;
}
}
else if(Select == 4)
{
GenerateTerrainObjects(100, 2 , 75, 15);
g_Load3ds.Import3DS(&g_3DModel, "Textures/Tilesets/Volcanic/Models/DEADTREE.3DS");
double Ratio = 0.1;
O1Offset = -1.0f;
BuildLists(Ratio, 1, g_3DModel);
for(int i = 0; i < g_3DModel.numOfObjects; i++)
{
// Free the faces, normals, vertices, and texture coordinates.
delete [] g_3DModel.pObject[i].pFaces;
delete [] g_3DModel.pObject[i].pNormals;
delete [] g_3DModel.pObject[i].pVerts;
delete [] g_3DModel.pObject[i].pTexVerts;
}
g_Load3ds.Import3DS(&g_3DModel1, "Textures/Tilesets/Volcanic/Models/TREE1.3DS");
Ratio = 0.15;
O2Offset = 2.0f;
BuildLists(Ratio, 2, g_3DModel1);
// Go through all the objects in the scene
for(int i = 0; i < g_3DModel1.numOfObjects; i++)
{
// Free the faces, normals, vertices, and texture coordinates.
delete [] g_3DModel1.pObject[i].pFaces;
delete [] g_3DModel1.pObject[i].pNormals;
delete [] g_3DModel1.pObject[i].pVerts;
delete [] g_3DModel1.pObject[i].pTexVerts;
}
}
SurfaceCreator s1 = SurfaceCreator(HeightMap.Height_Map, HeightMap.getTerrainSize() - 1, static_cast<float>(Height), Select);
multitextureSupported = initMultitexture();
TriangleTree.ExpandNode(TriangleTree.root);
Node* Current = TriangleTree.root;
//Create Triangle t1
Vector Apex = Vector(0, 0, HeightMap.Height_Map[0][0]);
Vector Left = Vector(0, static_cast<float>(HeightMap.getTerrainSize() - 1), HeightMap.Height_Map[0][HeightMap.getTerrainSize() - 1]);
Vector Right = Vector(static_cast<float>(HeightMap.getTerrainSize() - 1), 0,HeightMap.Height_Map[HeightMap.getTerrainSize() - 1][0] );
Triangle t = Triangle(Apex, Left, Right);
for(int i = 0; i < 100; i++)
{
if(PointInTriangle(Vector(Forests[i].x, Forests[i].y), Apex, Left, Right))
{
t.Tree.push_back(Forests[i]);
}
}
double E = CalculateError(Left, Right);
Current->LeftChild->BaseNeighbour = Current->RightChild;
TriangleTree.InsertAtNode(Current->LeftChild, t, E);
// Create Triangle t2
Apex.set(static_cast<float>(HeightMap.getTerrainSize() - 1) , static_cast<float>(HeightMap.getTerrainSize() - 1), HeightMap.Height_Map[HeightMap.getTerrainSize() - 1][HeightMap.getTerrainSize() - 1]);
Left.set(static_cast<float>(HeightMap.getTerrainSize() - 1), 0, HeightMap.Height_Map[HeightMap.getTerrainSize() - 1][0]);
Right.set(0, static_cast<float>(HeightMap.getTerrainSize() - 1), HeightMap.Height_Map[0][HeightMap.getTerrainSize() - 1]);
Triangle t2 = Triangle(Apex, Left, Right);
for(int i = 0; i < 100; i++)
{
if(PointInTriangle(Vector(Forests[i].x, Forests[i].y), Apex, Left, Right))
{
t2.Tree.push_back(Forests[i]);
}
}
Current->RightChild->BaseNeighbour = Current->LeftChild;
TriangleTree.InsertAtNode(Current->RightChild, t2, E);
LoadTGA(&SkyBoxTexture, "SkyBox/CLOUDS.tga");
LoadGLTextures(&WaterTexture, "Textures/WATER1.bmp");
LoadGLTextures(&SurfaceTexture , "Data/Surface.bmp");
LoadGLTextures(&ShadowTexture , "Data/Shadows.bmp");
}
