public Form1()
{
InitializeComponent();
ContextMenu cm = new ContextMenu();
cm.MenuItems.Add("Add Box", new EventHandler(AddBox));
cm.MenuItems.Add("Add Sphere", new EventHandler(AddSphere));
cm.MenuItems.Add("Add Cone", new EventHandler(AddCone));
cm.MenuItems.Add("Add Cylinder", new EventHandler(AddCylinder));
listBox1.ContextMenu = cm;
bmp = new Bitmap(pictureBox1.Width, pictureBox1.Height);
this.pictureBox1.Image = bmp;
objects = new List <Primitive>();
cameras = new List <Camera>();
activeCamera = new Camera(new Vector3D(2, 4, 5), new Vector3D(0, 0, 0), 30);
pm = new PhongModel(0, 4, 4);
cameras.Add(activeCamera);
listBox2.Items.Add(activeCamera);
checkBox1.Checked = true;
checkBox2.Checked = true;
Draw();
}
private void button2_Click(object sender, EventArgs e)
{
double px, py, pz, tx, ty, tz;
int fov;
if (double.TryParse(textBox11.Text, out px) && double.TryParse(textBox12.Text, out py) && double.TryParse(textBox13.Text, out pz))
{
pm = new PhongModel(px, py, pz);
}
if (double.TryParse(textBox11.Text, out px) && double.TryParse(textBox12.Text, out py) && double.TryParse(textBox13.Text, out pz) &&
double.TryParse(textBox14.Text, out tx) && double.TryParse(textBox15.Text, out ty) && double.TryParse(textBox16.Text, out tz) &&
int.TryParse(textBox21.Text, out fov))
{
cameras.Remove(activeCamera);
cameras.Add(new Camera(new Vector3D(px, py, pz), new Vector3D(tx, ty, tz), fov));
activeCamera = cameras[cameras.Count - 1];
}
Draw();
System.Diagnostics.Debug.WriteLine("");
}
public static double[,] CreateZbufferArray2(List <Triangle> li, out Color?[,] colors, int h, int w, PhongModel PM, Camera c)
{
colors = new Color?[h, w];
double[,] result = new double[h, w];
for (int i = 0; i < h; i++)
{
for (int j = 0; j < w; j++)
{
result[i, j] = 1;
}
}
foreach (var t in li)
{
Tuple <Triangle, Triangle> tt = t.SplitHorizontal();
if (tt.Item1 != null)
{
double x1 = tt.Item1.vertices[0].values[0];
double x2 = tt.Item1.vertices[1].values[0];
double x3 = tt.Item1.vertices[2].values[0];
double y1 = tt.Item1.vertices[0].values[1];
double y2 = tt.Item1.vertices[1].values[1];
double y3 = tt.Item1.vertices[2].values[1];
double z1 = tt.Item1.vertices[0].values[2];
double z2 = tt.Item1.vertices[1].values[2];
double z3 = tt.Item1.vertices[2].values[2];
Vector3D v1 = new Vector3D(x1, y1, 0);
Vector3D v2 = new Vector3D(x2, y2, 0);
Vector3D v3 = new Vector3D(x3, y3, 0);
SimpleTriangle tmpTriagnle = new SimpleTriangle(v1, v2, v3);
var a = tmpTriagnle.GetArea();
double invSlope1 = (x3 - x1) / (y1 - y3);
double invSlope2 = (x2 - x1) / (y1 - y2);
double invSlope3 = (z3 - z1) / (y1 - y3);
double invSlope4 = (z2 - z1) / (y1 - y2);
double ymin = y2;
double currx1 = x1;
double currx2 = x1;
double currz1 = z1;
double currz2 = z1;
if (Math.Abs(y1 - y2) < 1.0)
{
if (currx1 < 0 || currx2 < 0)
{
continue;
}
double d = Math.Abs(currx1 - currx2);
for (int i = (int)x2; i <= x3; i++)
{
if (d == 0)
{
break;
}
double z = currz2 * ((double)i / d) + currz1 * (1 - (double)i / d);
if (result[(int)y1, i] < z)
{
result[(int)y1, i] = z;
double I = PM.calculateIntensity(c, tt.Item1.WorldCoordinates[0], tt.Item1.normalVectors[1]);
colors[(int)y1, i] = Color.FromArgb((int)(tt.Item1.color.R * I) % 256, (int)(tt.Item1.color.G * I) % 256, (int)(tt.Item1.color.B * I) % 256);
}
}
}
else
{
double I1 = PM.calculateIntensity(c, tt.Item1.WorldCoordinates[0], tt.Item1.normalVectors[0]);
double I2 = PM.calculateIntensity(c, tt.Item1.WorldCoordinates[1], tt.Item1.normalVectors[1]);
double I3 = PM.calculateIntensity(c, tt.Item1.WorldCoordinates[2], tt.Item1.normalVectors[2]);
double I = (I1 + I2 + I3) / 3;
int resultDim1 = result.GetLength(0);
int resultDim2 = result.GetLength(1);
for (int scanLine = (int)y1; scanLine >= ymin; scanLine--)
{
if (currx1 < 0)
{
currx1 = 0;
}
if (currx2 < 0)
{
currx2 = 0;
}
double d = Math.Abs(currx1 - currx2);
for (int i = 0; i <= d; i++)
{
if (d == 0)
{
break;
}
double z = currz2 * ((double)i / d) + currz1 * (1 - (double)i / d);
if ((int)currx1 + i < resultDim2 && scanLine < resultDim1 && result[scanLine, (int)currx1 + i] > z)
{
result[scanLine, (int)currx1 + i] = z;
Vector3D vs = new Vector3D((int)currx1 + i, scanLine, 0);
SimpleTriangle a1 = new SimpleTriangle(v2, v3, vs);
SimpleTriangle a2 = new SimpleTriangle(v1, v3, vs);
SimpleTriangle a3 = new SimpleTriangle(v2, v1, vs);
var p1 = a1.GetArea();
var p2 = a2.GetArea();
var p3 = a3.GetArea();
I = I1 * p1 / a + I2 * p2 / a + I3 * p3 / a;
int R = (int)(tt.Item1.color.R * I) % 256;
int G = (int)(tt.Item1.color.G * I) % 256;
int B = (int)(tt.Item1.color.B * I) % 256;
colors[scanLine, (int)currx1 + i] = Color.FromArgb(R, G, B);
}
}
currx1 += invSlope1;
currx2 += invSlope2;
currz1 += invSlope3;
currz2 += invSlope4;
}
}
}
// bottom triangle
if (tt.Item2 != null)
{
double x1 = tt.Item2.vertices[2].values[0];
double x2 = tt.Item2.vertices[1].values[0];
double x3 = tt.Item2.vertices[0].values[0];
double y1 = tt.Item2.vertices[2].values[1];
double y2 = tt.Item2.vertices[1].values[1];
double y3 = tt.Item2.vertices[0].values[1];
double z1 = tt.Item2.vertices[2].values[2];
double z2 = tt.Item2.vertices[1].values[2];
double z3 = tt.Item2.vertices[0].values[2];
Vector3D v1 = new Vector3D(x1, y1, 0);
Vector3D v2 = new Vector3D(x2, y2, 0);
Vector3D v3 = new Vector3D(x3, y3, 0);
SimpleTriangle tmpTriagnle = new SimpleTriangle(v1, v2, v3);
var a = tmpTriagnle.GetArea();
double invSlope1 = -(x1 - x3) / (y3 - y1);
double invSlope2 = -(x1 - x2) / (y2 - y1);
double invSlope3 = -(z1 - z3) / (y3 - y1);
double invSlope4 = -(z1 - z2) / (y2 - y1);
double ymin = y2;
double currx1 = x1;
double currx2 = x1;
double currz1 = z1;
double currz2 = z1;
if (Math.Abs(y1 - y2) < 1.0)
{
if (currx1 < 0 || currx2 < 0)
{
continue;
}
double d = Math.Abs(currx1 - currx2);
for (int i = (int)x2; i <= x3; i++)
{
if (d == 0)
{
break;
}
double z = currz2 * ((double)i / d) + currz1 * (1 - (double)i / d);
if (result[(int)y1, i] < z)
{
result[(int)y1, i] = z;
double I = PM.calculateIntensity(c, tt.Item2.WorldCoordinates[0], tt.Item2.normalVectors[1]);
colors[(int)y1, i] = Color.FromArgb((int)(tt.Item2.color.R * I) % 256, (int)(tt.Item2.color.G * I) % 256, (int)(tt.Item2.color.B * I) % 256);
}
}
}
else
{
double I1 = PM.calculateIntensity(c, tt.Item2.WorldCoordinates[0], tt.Item2.normalVectors[0]);
double I2 = PM.calculateIntensity(c, tt.Item2.WorldCoordinates[1], tt.Item2.normalVectors[1]);
double I3 = PM.calculateIntensity(c, tt.Item2.WorldCoordinates[2], tt.Item2.normalVectors[2]);
double I = 0;
int resultDim1 = result.GetLength(0);
int resultDim2 = result.GetLength(1);
for (int scanLine = (int)y1; scanLine <= ymin; scanLine++)
{
if (currx1 < 0)
{
currx1 = 0;
}
double d = Math.Abs(currx1 - currx2);
for (int i = 0; i <= d; i++)
{
if (d == 0)
{
break;
}
double z = currz2 * ((double)i / d) + currz1 * (1 - (double)i / d);
if ((int)currx1 + i < resultDim2 && scanLine < resultDim1 && result[scanLine, (int)currx1 + i] > z)
{
result[scanLine, (int)currx1 + i] = z;
Vector3D vs = new Vector3D((int)currx1 + i, scanLine, 0);
SimpleTriangle a1 = new SimpleTriangle(v2, v3, vs);
SimpleTriangle a2 = new SimpleTriangle(v1, v3, vs);
SimpleTriangle a3 = new SimpleTriangle(v2, v1, vs);
var p1 = a1.GetArea();
var p2 = a2.GetArea();
var p3 = a3.GetArea();
I = I1 * p1 / a + I2 * p2 / a + I3 * p3 / a;
I = I3 * p1 / a + I2 * p2 / a + I1 * p3 / a;
colors[scanLine, (int)currx1 + i] = Color.FromArgb((int)(tt.Item2.color.R * I) % 256, (int)(tt.Item2.color.G * I) % 256, (int)(tt.Item2.color.B * I) % 256);
//colors[scanLine, (int)currx1 + i] = Color.Black;
}
}
currx1 += invSlope1;
currx2 += invSlope2;
currz1 += invSlope3;
currz2 += invSlope4;
}
}
}
}
return(result);
}
