public static RColor getLight(P3 p, P3 normal)
{
RColor c = new RColor(0, 0, 0);
foreach (Light l in lights)
{
c = c.Add(l.illumination(p, normal));
}
return(c);
}
public Form1()
{
InitializeComponent();
cs = new RColor[(int)width, (int)height];
for (int i = 0; i < cs.GetLength(0); i++)
{
for (int j = 0; j < cs.GetLength(1); j++)
{
cs[i, j] = new RColor(0, 0, 0);
}
}
/*
* objects = new List<SceneObject> {
* new SceneObject(new Sphere(new P3(-0.4f,0,0), 0.5f),
* new ImageTexture(RayTrace.Properties.Resources.Earth_texture),
* new NonReflective()),
* new SceneObject(new Sphere(new P3(0.4f,-.2f,0), 0.3f),
* new SolidTexture(new RColor(0,1,0)),
* new NonReflective()),
* new SceneObject(new Sphere(new P3(0.5f,-0.4f,-0.5f), 0.2f, ve: new P3(1, 0, 0)),
* new ImageTexture(RayTrace.Properties.Resources.Earth_texture),
* new NonReflective()),
* new SceneObject(new Plane(new P3(0,0,0.5f), new P3(0,0,-1)),
* new SolidTexture(new RColor(1,0,0)),
* new Mirror())};
* lights = new List<Light> {
* new AmbientLight(new RColor(0.3f, 0.3f, 0.3f)),
* new DirectionalLight(new RColor(1,1,1), new P3(1, -.2f, -.3f).Normalize())};
* */
objects = new List <SceneObject>();
for (int i = -8; i < 9; i++)
{
for (int j = -8; j < 1; j++)
{
objects.Add(new SceneObject(new Sphere(new P3(i, 50, j), 0.5f),
new ImageTexture(RayTrace.Properties.Resources.Earth_texture), new NonReflective()));
}
}
objects.Add(new SceneObject(new Plane(new P3(0, 0, 0.5f), new P3(0, 0, -1)),
new SolidTexture(new RColor(1, 0, 0)),
new Mirror()));
lights = new List <Light> {
new AmbientLight(new RColor(0.2f, 0.2f, 0.2f)),
new DirectionalLight(new RColor(1, 1, 1), new P3(1, -.2f, -.3f).Normalize())
};
Trace();
worldBox.Refresh();
}
public RColor illumination(P3 point, P3 normal)
{
float inten = this.p.Dot(normal);
RColor color = new RColor(0, 0, 0);
if (inten > 0) {
color = c.Scale(inten);
float d;
SceneObject s = Form1.shootRay(new Ray(point, this.p), out d);
if (s != null) {
return new RColor(0, 0, 0);
}
}
return color;
}
public RColor illumination(P3 point, P3 normal)
{
float inten = this.p.Dot(normal);
RColor color = new RColor(0, 0, 0);
if (inten > 0)
{
color = c.Scale(inten);
float d;
SceneObject s = Form1.shootRay(new Ray(point, this.p), out d);
if (s != null)
{
return(new RColor(0, 0, 0));
}
}
return(color);
}
public Form1()
{
InitializeComponent();
cs = new RColor[(int)width, (int)height];
for (int i = 0; i < cs.GetLength(0); i++) {
for (int j = 0; j < cs.GetLength(1); j++) {
cs[i, j] = new RColor(0, 0, 0);
}
}
/*
objects = new List<SceneObject> {
new SceneObject(new Sphere(new P3(-0.4f,0,0), 0.5f),
new ImageTexture(RayTrace.Properties.Resources.Earth_texture),
new NonReflective()),
new SceneObject(new Sphere(new P3(0.4f,-.2f,0), 0.3f),
new SolidTexture(new RColor(0,1,0)),
new NonReflective()),
new SceneObject(new Sphere(new P3(0.5f,-0.4f,-0.5f), 0.2f, ve: new P3(1, 0, 0)),
new ImageTexture(RayTrace.Properties.Resources.Earth_texture),
new NonReflective()),
new SceneObject(new Plane(new P3(0,0,0.5f), new P3(0,0,-1)),
new SolidTexture(new RColor(1,0,0)),
new Mirror())};
lights = new List<Light> {
new AmbientLight(new RColor(0.3f, 0.3f, 0.3f)),
new DirectionalLight(new RColor(1,1,1), new P3(1, -.2f, -.3f).Normalize())};
* */
objects = new List<SceneObject>();
for (int i = -8; i < 9; i++) {
for (int j = -8; j < 1; j++) {
objects.Add(new SceneObject(new Sphere(new P3(i, 50, j), 0.5f),
new ImageTexture(RayTrace.Properties.Resources.Earth_texture), new NonReflective()));
}
}
objects.Add(new SceneObject(new Plane(new P3(0, 0, 0.5f), new P3(0, 0, -1)),
new SolidTexture(new RColor(1, 0, 0)),
new Mirror()));
lights = new List<Light> { new AmbientLight(new RColor(0.2f, 0.2f, 0.2f)),
new DirectionalLight(new RColor(1, 1, 1), new P3(1, -.2f, -.3f).Normalize())};
Trace();
worldBox.Refresh();
}
public void NormalizeColors(RColor[,] cs)
{
float max = 0;
for (int i = 0; i < cs.GetLength(0); i++) {
for (int j = 0; j < cs.GetLength(1); j++) {
max = Math.Max(max, cs[i, j].Intensity());
}
}
for (int i = 0; i < cs.GetLength(0); i++) {
for (int j = 0; j < cs.GetLength(1); j++) {
cs[i, j] = cs[i, j].Normalize(max);
}
}
}
public Ray(P3 start, P3 direction)
{
this.start = start;
this.direction = direction.Normalize();
color = new RColor(0, 0, 0);
}
public SolidTexture(RColor c)
{
this.c = c;
}
public RColor Color(P3 p, Ray r, SceneObject s) {
RColor light = Form1.getLight(p, s.Geo.Normal(p));
return light.Mul(s.Texture.Color(s.Geo.ToP2(p)));
}
public RColor Mul(RColor c)
{
return(new RColor(this.R * c.R, this.G * c.G, this.B * c.B));
}
public AmbientLight(RColor l)
{
this.l = l;
}
public SolidTexture(RColor c)
{
this.c = c;
}
public RColor Add(RColor c)
{
return(new RColor(this.R + c.R, this.G + c.G, this.B + c.B));
}
public static RColor getLight(P3 p, P3 normal)
{
RColor c = new RColor(0, 0, 0);
foreach (Light l in lights) {
c = c.Add(l.illumination(p, normal));
}
return c;
}
public RColor Add(RColor c)
{
return new RColor(this.R + c.R, this.G + c.G, this.B + c.B);
}
public DirectionalLight(RColor c, float theta, float phi)
{
this.c = c;
this.p = P3.fromSphere(theta, phi);
}
public DirectionalLight(RColor c, P3 p)
{
this.c = c;
this.p = p;
}
public RColor Mul(RColor c)
{
return new RColor(this.R * c.R, this.G * c.G, this.B * c.B);
}
public DirectionalLight(RColor c, P3 p)
{
this.c = c;
this.p = p;
}
public DirectionalLight(RColor c, float theta, float phi)
{
this.c = c;
this.p = P3.fromSphere(theta, phi);
}
public Ray(P3 start, P3 direction)
{
this.start = start;
this.direction = direction.Normalize();
color = new RColor(0, 0, 0);
}
public AmbientLight(RColor l)
{
this.l = l;
}
