int main ( void ) {
// SFML canvas and window
Canvas canvas( imageWidth, imageHeight );
sf::RenderWindow window(sf::VideoMode(imageWidth, imageHeight), "Ray Tracer");
// first create our objects
Sphere greenSphere( Point(0.0,0.5,-2.0), 0.4, Color(0,1,0) );
greenSphere.setUpPhong( Color(1,1,1), 0.2, 0.6, 0.6, 10.0 );
//greenSphere.setUpReflectionTransmission(0.0 , 0.0, 0.0);
Sphere blueSphere( Point(-0.65,0.3,-2.5), 0.3, Color(0.2,0.2,0.2) );
blueSphere.setUpPhong( Color(1,1,1), 0.5, 0.5, 0.8, 20.0 );
//blueSphere.setUpReflectionTransmission(0.0 , 0.0, 0.0);
std::vector<Point> vertices;
vertices.push_back( Point(-1.8,-0.9, 0.0) );
vertices.push_back( Point(-1.8,-0.9,-6.0) );
vertices.push_back( Point( 1.8,-0.9,-6.0) );
vertices.push_back( Point( 1.8,-0.9, 0.0) );
Polygon checkerFloor( vertices, Vector(0,1,0), Color(1,1,1) );
checkerFloor.setUpPhong( Color(0.5,0.5,0.5), 0.2, 0.3, 0.0, 1.0 );
// create a light source
PointLight light( Point(0.0, 2.0, -2.0), Color(1,1,1) );
//PointLight light2( Point(-5.0f, 3.0f, 0.0f), Color(1,1,1) );
//SpotLight light( Point(0.0, 2.0, -2.0), Color(1,1,1), Vector(0,-1,0), 20, 20 );
// create world, add objects in it
World world;
world.addObject(&greenSphere);
world.addObject(&blueSphere);
world.addObject(&checkerFloor);
// We are doing ray marching, se need to add values for participant media
world.addParticipantMedia(0.01,0.01,VARIABLE_DENSITY);
// add light and set up phong
world.addLight(&light);
//world.addLight(&light2);
//world.setUpPhongBlinnIllumination( Color(0.7,1,1) );
world.setUpPhongIllumination( Color(0.25,0.61,1.00) );
// create camera
Point pos(0,0,1.5);
Vector lookAt(0,-0.5,0); // not being used yet
Vector up(0,1,0); // not being used yet
Camera cam(pos, lookAt, up, imageHeight, imageWidth, viewPlaneHeigth, viewPlaneWidth,
RAY_MARCHING, 20, RAY_CENTER);
// render our world, get the color map we will put on canvas
std::vector<Color> colorMap = cam.render(world);
// set pixel values on the canvas
for(int i = 0; i < imageWidth; ++i) {
for(int j = 0; j < imageHeight; ++j) {
Color c = colorMap[i * imageWidth + j];
canvas.setPixel( i, j, c.r, c.g, c.b );
}
}
// run the program as long as the window is open
while (window.isOpen())
{
// check all the window's events that were triggered since the last iteration of the loop
sf::Event event;
while (window.pollEvent(event))
{
// "close requested" event: we close the window
if (event.type == sf::Event::Closed)
window.close();
}
// clear the window with black color
window.clear(sf::Color::Black);
// draw everything here...
canvas.draw(window);
// end the current frame
window.display();
}
return 0;
}
int main(int argc, char** argv)
{
// parse command
unsigned int pos = 1;
unsigned int mask = (argc >= 2) ? 0 : 0xFFFF;
while(pos < argc)
{
unsigned int sceneNumber = atoi(argv[pos++]);
mask |= 1 << sceneNumber;
}
// Initialize
phong p32(32.0f);
phong p64(64.0f);
phong p16(16.0f);
diffuse d;
constantAlbedo red(color(1.0f, 0.0f, 0.0f));
constantAlbedo green(color(0.0f, 1.0f, 0.0f));
constantAlbedo blue(color(0.0f, 0.0f, 1.0f));
constantAlbedo white(color(1.0f, 1.0f, 1.0f));
std::vector<triangle> sphere = createSphere( vec3d(0.0f, 0.0f, 0.0f), 1.0f, 16, 16 );
std::vector<triangle> plane = createPlane( vec3d(-1.0f, -1.0f, 0.0f), vec3d(0.0f, 2.0f, 0.0f), vec3d(2.0f, 0.0f, 0.0f) );
material redMaterial;
redMaterial.addComponent( reflectanceComponent(&red, &d) );
redMaterial.addComponent( reflectanceComponent(&white, &p32) );
material greenMaterial;
greenMaterial.addComponent( reflectanceComponent(&green, &d) );
greenMaterial.addComponent( reflectanceComponent(&white, &p64) );
material blueMaterial;
blueMaterial.addComponent( reflectanceComponent(&blue, &d) );
blueMaterial.addComponent( reflectanceComponent(&white, &p16) );
material whiteMaterial;
whiteMaterial.addComponent( reflectanceComponent(&white, &d) );
triangleMesh redSphere(sphere, redMaterial);
triangleMesh greenSphere(sphere, greenMaterial);
triangleMesh blueSphere(sphere, blueMaterial);
triangleMesh whitePlane(plane, whiteMaterial);
sceneGraphObject redSphereObject(redSphere);
sceneGraphObject greenSphereObject(greenSphere);
sceneGraphObject blueSphereObject(blueSphere);
sceneGraphObject whitePlaneObject(whitePlane);
camera cam( vec3d(0.0f, 0.0f, 5.0f),
vec3d(0.0f, 0.0f, -1.0f),
vec3d(0.0f, 1.0f, 0.0f),
35.0f * M_PI / 180.0f,
512, 512 );
directionalLightsource ls( color(1.0f, 1.0f, 1.0f), vec3d(0.0f, -1.0f, -1.0f) );
directionalLightsource frontal( color(1.0f, 1.0f, 1.0f), vec3d(0.0f, 0.0f, -1.0f) );
/////////////////////////////////////////////////////
if((mask & 2) != 0)
{
sceneGraphNode sg1;
sg1.addChildNode(redSphereObject);
std::cout << "Generating Image 1." << std::endl;
image result1 = generateImage(cam, sg1, ls);
result1.save("hw4-result1.ppm");
}
/////////////////////////////////////////////////////
if((mask & 4) != 0)
{
sceneGraphNode sg2node1(translation3d(vec3d(+1.0f, 0.0f, 0.0f)));
sg2node1.addChildNode(redSphereObject);
sceneGraphNode sg2node2(translation3d(vec3d(-1.0f, 0.0f, 0.0f)));
sg2node2.addChildNode(blueSphereObject);
sceneGraphNode sg2;
sg2.addChildNode(sg2node1);
sg2.addChildNode(sg2node2);
std::cout << "Generating Image 2." << std::endl;
image result2 = generateImage(cam, sg2, ls);
result2.save("hw4-result2.ppm");
}
/////////////////////////////////////////////////////
if((mask & 8) != 0)
{
sceneGraphNode sg3node1(scale3d(2.0f, 0.5f, 0.5f));
sg3node1.addChildNode(greenSphereObject);
sceneGraphNode sg3;
sg3.addChildNode(sg3node1);
std::cout << "Generating Image 3." << std::endl;
image result3 = generateImage(cam, sg3, ls);
result3.save("hw4-result3.ppm");
}
/////////////////////////////////////////////////////
if((mask & 16) != 0)
{
sceneGraphNode sg2node1(translation3d(vec3d(+1.0f, 0.0f, 0.0f)));
sg2node1.addChildNode(redSphereObject);
sceneGraphNode sg2node2(translation3d(vec3d(-1.0f, 0.0f, 0.0f)));
sg2node2.addChildNode(blueSphereObject);
sceneGraphNode sg2;
sg2.addChildNode(sg2node1);
sg2.addChildNode(sg2node2);
sceneGraphNode sg4node1(rotationY3d(M_PI));
sg4node1.addChildNode(sg2);
sceneGraphNode sg4;
sg4.addChildNode(sg4node1);
std::cout << "Generating Image 4." << std::endl;
image result4 = generateImage(cam, sg4, ls);
result4.save("hw4-result4.ppm");
}
/////////////////////////////////////////////////////
if((mask & 32) != 0)
{
sceneGraphNode sg5node0(scale3d(0.5f, 0.5f, 0.5f));
sceneGraphNode sg5node1(rotationY3d(0.5 * M_PI));
sceneGraphNode sg5node2(rotationX3d(0.5 * M_PI));
sceneGraphNode sg5node3(translation3d(vec3d(0.0f, 2.0f, 0.0f)));
sceneGraphNode sg5node4(rotationX3d(0.5 * M_PI));
sceneGraphNode sg5node5(translation3d(vec3d(0.0f, 2.0f, 0.0f)));
sceneGraphNode sg5node6(rotationX3d(0.5 * M_PI));
sceneGraphNode sg5node7(translation3d(vec3d(0.0f, 2.0f, 0.0f)));
sceneGraphNode sg5node8(rotationX3d(0.5 * M_PI));
sceneGraphNode sg5node9(translation3d(vec3d(0.0f, 2.0f, 0.0f)));
sceneGraphNode sg5;
sg5.addChildNode(sg5node0);
sg5node0.addChildNode(sg5node1);
sg5node1.addChildNode(sg5node2);
sg5node2.addChildNode(sg5node3);
sg5node3.addChildNode(redSphereObject);
sg5node3.addChildNode(sg5node4);
sg5node4.addChildNode(sg5node5);
sg5node5.addChildNode(greenSphereObject);
sg5node5.addChildNode(sg5node6);
sg5node6.addChildNode(sg5node7);
sg5node7.addChildNode(blueSphereObject);
sg5node7.addChildNode(sg5node8);
sg5node8.addChildNode(sg5node9);
sg5node9.addChildNode(blueSphereObject);
std::cout << "Generating Image 5." << std::endl;
image result5 = generateImage(cam, sg5, ls);
result5.save("hw4-result5.ppm");
}
/////////////////////////////////////////////////////
if((mask & 64) != 0)
{
sceneGraphNode cubeside( translation3d(vec3d(0.0f, 0.0f, 1.0f)) );
cubeside.addChildNode(whitePlaneObject);
sceneGraphNode cubeNode1( rotationY3d(0.0f / 2.0f * M_PI) );
cubeNode1.addChildNode(cubeside);
sceneGraphNode cubeNode2( rotationY3d(1.0f / 2.0f * M_PI) );
cubeNode2.addChildNode(cubeside);
sceneGraphNode cubeNode3( rotationY3d(2.0f / 2.0f * M_PI) );
cubeNode3.addChildNode(cubeside);
sceneGraphNode cubeNode4( rotationY3d(3.0f / 2.0f * M_PI) );
cubeNode4.addChildNode(cubeside);
sceneGraphNode cubeNode5( rotationX3d(0.5f * M_PI) );
cubeNode5.addChildNode(cubeside);
sceneGraphNode cubeNode6( rotationX3d(-0.5f * M_PI) );
cubeNode6.addChildNode(cubeside);
sceneGraphNode cube;
cube.addChildNode(cubeNode1);
cube.addChildNode(cubeNode2);
cube.addChildNode(cubeNode3);
cube.addChildNode(cubeNode4);
cube.addChildNode(cubeNode5);
cube.addChildNode(cubeNode6);
sceneGraphNode sg6( rotation3d(0.25*M_PI, vec3d(1.0f, 0.75f, 0.5f)) );
sg6.addChildNode(cube);
std::cout << "Generating Image 6." << std::endl;
image result6 = generateImage(cam, sg6, frontal);
result6.save("hw4-result6.ppm");
}
// Done.
return 0;
}
