public static Scene CreateMarblesAxisScene()
{
var background = new Background(new ColorVector(), 0.0);
var redMaterial = new SolidMaterial(0.5, 0.2, 0.0, 0.6, 0.0, 0.0, 1.0, new ColorVector(0.9, 0.0, 0.0));
var greenMaterial = new SolidMaterial(0.5, 0.2, 0.0, 0.6, 0.0, 0.0, 1.0, new ColorVector(0.0, 0.9, 0.0));
var blueMaterial = new SolidMaterial(0.5, 0.2, 0.0, 0.6, 0.0, 0.0, 1.0, new ColorVector(0.0, 0.0, 0.9));
double sphereDistanceIncrement = 5.0;
int numSpheresPerAxis = 10;
double sphereRadius = 2.0;
double maxAxis = sphereDistanceIncrement * Convert.ToDouble(numSpheresPerAxis);
var shapes = new List <Shape>();
double x = 0.0;
while (x <= maxAxis)
{
shapes.Add(new SphereShape(new PosVector(x, 0.0, 0.0), sphereRadius, redMaterial));
x += sphereDistanceIncrement;
}
double y = 0.0;
while (y <= maxAxis)
{
shapes.Add(new SphereShape(new PosVector(0.0, y, 0.0), sphereRadius, greenMaterial));
y += sphereDistanceIncrement;
}
double z = 0.0;
while (z <= maxAxis)
{
shapes.Add(new SphereShape(new PosVector(0.0, 0.0, z), sphereRadius, blueMaterial));
z += sphereDistanceIncrement;
}
var chessMaterial = new ChessboardMaterial(0.5, 0.2, 0.0, 0.2, 0.0, 0.0, 2.0, new ColorVector(0.8, 0.8, 0.8), new ColorVector(), 15.0);
shapes.Add(new PlaneShape(new PosVector(0.0, 0.0, 1.0), 0.0, chessMaterial));
var lights = new List <Light>();
lights.Add(new PointLight(new PosVector(5.0, 10.0, 10.0), new ColorVector(0.9, 0.9, 0.9)));
return(Scene.Create(background, shapes, lights));
}
public static NffParserResult ParseFile(string path, int numThreads, int rayTraceDepth, int resolutionX,
int resolutionY)
{
var background = new Background(new ColorVector(0.0, 0.0, 0.0), 0.0);
var lights = new List <Light>();
var shapes = new List <Shape>();
var cameraAt = PosVector.NewDefault();
var cameraFrom = PosVector.NewDefault();
var cameraUp = PosVector.NewDefault();
var lookingFor = LookingFor.Instruction;
var currentMaterial = new SolidMaterial(0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, new ColorVector(0.0, 0.0, 0.0));
var polyVectors = new List <PosVector>();
var currentItemCounter = 0;
var lines = File.ReadAllLines(path);
foreach (var line in lines)
{
var split = line.Split(' ', '\t');
switch (lookingFor)
{
case LookingFor.Instruction:
{
var instruction = split[0];
if (instruction == "b")
{
// background color
background =
new Background(new ColorVector(double.Parse(split[1]), double.Parse(split[2]), double.Parse(split[3])),
0.0);
}
else if (instruction == "v")
{
// viewpoint location
lookingFor = LookingFor.ViewpointFrom;
}
else if (instruction == "l")
{
// positional light
var colorVector = split.Length == 7
? new ColorVector(double.Parse(split[4]), double.Parse(split[5]), double.Parse(split[6]))
: new ColorVector(1.0, 1.0, 1.0);
lights.Add(
new PointLight(new PosVector(double.Parse(split[1]), double.Parse(split[2]), double.Parse(split[3])),
colorVector));
}
else if (instruction == "f")
{
// println!("reading f: {}", num);
// object material properties
// "f" red green blue Kd Ks Shine T index_of_refraction
// Kd Diffuse component
// Ks Specular
// Shine Phong cosine power for highlights
// T Transmittance (fraction of contribution of the transmitting ray).
// Usually, 0 <= Kd <= 1 and 0 <= Ks <= 1, though it is not required that Kd + Ks = 1. Note that transmitting objects (T > 0) are considered to have two sides for algorithms that need these (normally, objects have one side).
// todo: i don't think i'm assigning the correct values into my solidmaterial yet
currentMaterial = new SolidMaterial(
0.0, // kAmbient
double.Parse(split[4]), // kDiffuse
double.Parse(split[5]), // kSpecular
double.Parse(split[7]), // kReflection
double.Parse(split[8]), // kTransparent
double.Parse(split[8]), // refraction -- todo: which is which here?
double.Parse(split[6]), // gloss
new ColorVector(double.Parse(split[1]), double.Parse(split[2]), double.Parse(split[3]))
);
}
else if (instruction == "c")
{
// cone or cylinder
}
else if (instruction == "s")
{
// sphere
shapes.Add(new SphereShape(
new PosVector(double.Parse(split[1]), double.Parse(split[2]), double.Parse(split[3])),
double.Parse(split[4]),
currentMaterial
));
}
else if (instruction == "p")
{
// polygon
currentItemCounter = int.Parse(split[1]);
polyVectors = new List <PosVector>();
lookingFor = LookingFor.Polygon;
}
else if (instruction == "pp")
{
// polygon patch
}
else if (instruction == "#")
{
// comment
}
}
break;
case LookingFor.Polygon:
{
if (currentItemCounter > 0)
{
currentItemCounter--;
polyVectors.Add(new PosVector(double.Parse(split[0]), double.Parse(split[1]), double.Parse(split[2])));
}
if (currentItemCounter == 0)
{
if (polyVectors.Count >= 3)
{
var firstVert = polyVectors[0];
var prevVert = polyVectors[1];
var thisVert = polyVectors[2];
shapes.Add(new TriangleShape(firstVert, prevVert, thisVert, currentMaterial, currentMaterial));
for (var i = 3; i < polyVectors.Count; i++)
{
prevVert = thisVert;
thisVert = polyVectors[i];
shapes.Add(new TriangleShape(firstVert, prevVert, thisVert, currentMaterial, currentMaterial));
}
}
lookingFor = LookingFor.Instruction;
}
}
break;
case LookingFor.ViewpointFrom:
{
cameraFrom = new PosVector(double.Parse(split[1]), double.Parse(split[2]), double.Parse(split[3]));
lookingFor = LookingFor.ViewpointAt;
}
break;
case LookingFor.ViewpointAt:
{
cameraAt = new PosVector(double.Parse(split[1]), double.Parse(split[2]), double.Parse(split[3]));
lookingFor = LookingFor.ViewpointUp;
}
break;
case LookingFor.ViewpointUp:
{
cameraUp = new PosVector(double.Parse(split[1]), double.Parse(split[2]), double.Parse(split[3]));
lookingFor = LookingFor.ViewpointAngle;
}
break;
case LookingFor.ViewpointAngle:
{
// todo: implement
lookingFor = LookingFor.ViewpointHither;
}
break;
case LookingFor.ViewpointHither:
{
// todo: implement
lookingFor = LookingFor.ViewpointResolution;
}
break;
case LookingFor.ViewpointResolution:
{
//resolutionX = int.Parse(split[1]);
//resolutionY = int.Parse(split[2]);
lookingFor = LookingFor.Instruction;
}
break;
}
}
return(new NffParserResult(Scene.Create(background, shapes, lights),
new RenderData(resolutionX, resolutionY, rayTraceDepth, numThreads, true),
new Camera(cameraFrom, cameraAt, cameraUp, 50.0)));
}
