void project1() {
// Create scene
Scene scn;
scn.SetSkyColor(Color(0.8f, 0.9f, 1.0f));
// Create boxes
LambertMaterial lambert1;
lambert1.SetDiffuseColor(Color(0.3f,0.3f,0.3f));
MeshObject box1;
box1.MakeBox(5.0f,0.1f,5.0f, &lambert1);
scn.AddObject(box1);
LambertMaterial lambert2;
lambert2.SetDiffuseColor(Color(0.7f,0.7f,0.7f));
MeshObject box2;
box2.MakeBox(1.0f,1.0f,1.0f, &lambert2);
InstanceObject inst1(box2);
Matrix34 mtx;
mtx.MakeRotateX(0.5f);
mtx.d.y=1.0f;
inst1.SetMatrix(mtx);
scn.AddObject(inst1);
InstanceObject inst2(box2);
mtx.MakeRotateY(1.0f);
mtx.d.Set(-1.0f,0.0f,1.0f);
inst2.SetMatrix(mtx);
scn.AddObject(inst2);
// Create lights
DirectLight sunlgt;
sunlgt.SetBaseColor(Color(1.0f, 1.0f, 0.9f));
sunlgt.SetIntensity(0.5f);
sunlgt.SetDirection(Vector3(-0.5f, -1.0f, -0.5f));
scn.AddLight(sunlgt);
PointLight redlgt;
redlgt.SetBaseColor(Color(1.0f, 0.2f, 0.2f));
redlgt.SetIntensity(2.0f);
redlgt.SetPosition(Vector3(2.0f, 2.0f, 0.0f));
scn.AddLight(redlgt);
// Create camera
Camera cam;
cam.LookAt(Vector3(2.0f,2.0f,5.0f), Vector3(0.0f,0.0f,0.0f));
cam.SetResolution(800,600);
cam.SetFOV(40.0f);
cam.SetAspect(1.33f);
// Render image
cam.Render(scn);
cam.SaveBitmap("project1.bmp");
}
void LoadLight(TiXmlElement *element)
{
Light *light = NULL;
// name
const char* name = element->Attribute("name");
printf("Light [");
if ( name ) printf("%s",name);
printf("]");
// type
const char* type = element->Attribute("type");
if ( type ) {
if ( COMPARE(type,"ambient") ) {
printf(" - Ambient\n");
AmbientLight *l = new AmbientLight();
light = l;
for ( TiXmlElement *child = element->FirstChildElement(); child!=NULL; child = child->NextSiblingElement() ) {
if ( COMPARE( child->Value(), "intensity" ) ) {
Color c(1,1,1);
ReadColor( child, c );
l->SetIntensity(c);
printf(" intensity %f %f %f\n",c.r,c.g,c.b);
}
}
} else if ( COMPARE(type,"direct") ) {
printf(" - Direct\n");
DirectLight *l = new DirectLight();
light = l;
for ( TiXmlElement *child = element->FirstChildElement(); child!=NULL; child = child->NextSiblingElement() ) {
if ( COMPARE( child->Value(), "intensity" ) ) {
Color c(1,1,1);
ReadColor( child, c );
l->SetIntensity(c);
printf(" intensity %f %f %f\n",c.r,c.g,c.b);
} else if ( COMPARE( child->Value(), "direction" ) ) {
Point3 v(1,1,1);
ReadVector( child, v );
l->SetDirection(v);
printf(" direction %f %f %f\n",v.x,v.y,v.z);
}
}
} else if ( COMPARE(type,"point") ) {
printf(" - Point\n");
PointLight *l = new PointLight();
light = l;
for ( TiXmlElement *child = element->FirstChildElement(); child!=NULL; child = child->NextSiblingElement() ) {
if ( COMPARE( child->Value(), "intensity" ) ) {
Color c(1,1,1);
ReadColor( child, c );
l->SetIntensity(c);
printf(" intensity %f %f %f\n",c.r,c.g,c.b);
} else if ( COMPARE( child->Value(), "position" ) ) {
Point3 v(0,0,0);
ReadVector( child, v );
l->SetPosition(v);
printf(" position %f %f %f\n",v.x,v.y,v.z);
}
}
} else {
printf(" - UNKNOWN\n");
}
}
if ( light ) {
light->SetName(name);
lights.push_back(light);
}
}
void project2() {
// Create scene
Scene scn;
scn.SetSkyColor(Color(0.8f, 0.8f, 1.0f));
// Create ground
MeshObject ground;
ground.MakeBox(5.0f,0.1f,5.0f);
scn.AddObject(ground);
// Create dragon
MeshObject dragon;
dragon.LoadPLY("dragon.ply");
dragon.Smooth();
std::chrono::time_point<std::chrono::system_clock> start, end;
start = std::chrono::system_clock::now();
std::cout << "Constructing the tree ..." << std::endl;
BoxTreeObject tree;
tree.Construct(dragon);
scn.AddObject(tree);
end = std::chrono::system_clock::now();
std::chrono::duration<double> elapsed_seconds = end-start;
std::cout << "Tree construcion done in " << elapsed_seconds.count() * 1000 << " milliseconds" << std::endl;
// Create instance
InstanceObject inst(tree);
Matrix34 mtx;
mtx.MakeRotateY(PI);
mtx.d.Set(-0.05f,0.0f,-0.1f);
inst.SetMatrix(mtx); scn.AddObject(inst);
// Create lights
DirectLight sunlgt;
sunlgt.SetBaseColor(Color(1.0f, 1.0f, 0.9f));
sunlgt.SetIntensity(1.0f);
sunlgt.SetDirection(Vector3(2.0f, -3.0f, -2.0f));
scn.AddLight(sunlgt);
PointLight redlgt;
redlgt.SetBaseColor(Color(1.0f, 0.2f, 0.2f));
redlgt.SetIntensity(0.02f);
redlgt.SetPosition(Vector3(-0.2f, 0.2f, 0.2f));
scn.AddLight(redlgt);
PointLight bluelgt;
bluelgt.SetBaseColor(Color(0.2f, 0.2f, 1.0f));
bluelgt.SetIntensity(0.02f);
bluelgt.SetPosition(Vector3(0.1f, 0.1f, 0.3f));
scn.AddLight(bluelgt);
// Create camera
Camera cam;
cam.LookAt(Vector3(-0.1f,0.1f,0.2f),Vector3(-0.05f,0.12f,0.0f));
cam.SetFOV(40.0f);
cam.SetAspect(1.33f);
cam.SetResolution(800,600);
start = std::chrono::system_clock::now();
std::cout << "Rendering the scene ..." << std::endl;
// Render image
cam.Render(scn);
cam.SaveBitmap("project2.bmp");
end = std::chrono::system_clock::now();
elapsed_seconds = end-start;
std::cout << "Scene rendering done in " << elapsed_seconds.count() * 1000 << " milliseconds" << std::endl;
}
void project3() {
// Create scene
Scene scn;
scn.SetSkyColor(Color(0.8f, 0.9f, 1.0f));
// Materials
const int nummtls=4;
AshikhminMaterial mtl[nummtls];
// Diffuse
mtl[0].SetSpecularLevel(0.0f);
mtl[0].SetDiffuseLevel(1.0f);
mtl[0].SetDiffuseColor(Color(0.7f,0.7f,0.7f));
// Roughened copper
mtl[1].SetDiffuseLevel(0.0f);
mtl[1].SetSpecularLevel(1.0f);
mtl[1].SetSpecularColor(Color(0.9f,0.6f,0.5f));
mtl[1].SetRoughness(100.0f,100.0f);
// Anisotropic gold
mtl[2].SetDiffuseLevel(0.0f);
mtl[2].SetSpecularLevel(1.0f);
mtl[2].SetSpecularColor(Color(0.95f,0.7f,0.3f));
mtl[2].SetRoughness(1.0f,1000.0f);
// Red plastic
mtl[3].SetDiffuseColor(Color(1.0f,0.1f,0.1f));
mtl[3].SetDiffuseLevel(0.8f);
mtl[3].SetSpecularLevel(0.2f);
mtl[3].SetSpecularColor(Color(1.0f,1.0f,1.0f));
mtl[3].SetRoughness(1000.0f,1000.0f);
// Load dragon mesh
MeshObject dragon;
dragon.LoadPLY("dragon.ply");
// Create box tree
BoxTreeObject tree;
tree.Construct(dragon);
// Create ground
LambertMaterial lambert;
lambert.SetDiffuseColor(Color(0.3f,0.3f,0.35f));
MeshObject ground;
ground.MakeBox(2.0f,0.11f,2.0f,&lambert);
scn.AddObject(ground);
// Create dragon instances
Matrix34 mtx;
for(int i=0;i<nummtls;i++) {
InstanceObject *inst=new InstanceObject(tree);
mtx.d.Set(0.0f,0.0f,-0.1f*float(i));
inst->SetMatrix(mtx);
inst->SetMaterial(&mtl[i]);
scn.AddObject(*inst);
}
// Create lights
DirectLight sunlgt;
sunlgt.SetBaseColor(Color(1.0f, 1.0f, 0.9f));
sunlgt.SetIntensity(1.0f);
sunlgt.SetDirection(Vector3(2.0f, -3.0f, -2.0f));
scn.AddLight(sunlgt);
// Create camera
Camera cam;
cam.LookAt(Vector3(-0.5f,0.25f,-0.2f),Vector3(0.0f,0.15f,-0.15f));
cam.SetFOV(40.0f);
cam.SetAspect(1.33f);
cam.SetResolution(800,600);
cam.SetSuperSample(100);
// Render image
cam.Render(scn);
cam.SaveBitmap("project3.bmp");
}