private void Guru(object sender, EventArgs e)
{
Image2D polygonsImage = new Image2D(1000, 1000);
ZBuffer zBuffer = new ZBuffer(1000, 1000);
foreach (Polygon pol in polygons)
{
if (MatrixUtil.cosDirectionEarthNormal(pol) >= 0)
{
continue;
}
ImageProcessor.rawTriangleWithGuruAndZBuffer(pol, polygonsImage, zBuffer);
}
Bitmap image = ImageProcessor.Image2DtoBitmap(polygonsImage);
pictureBox1.Image = image;
}
public static void rawTriangleWithGuruAndZBuffer(Polygon polygon, Image2D image2D, ZBuffer zBuffer)
{
int xMin = Math.Min(Math.Min(polygon[0].X, polygon[1].X), polygon[2].X) < 0
? 0
: Math.Min(Math.Min(polygon[0].X, polygon[1].X), polygon[2].X);
int xMax = Math.Max(Math.Max(polygon[0].X, polygon[1].X), polygon[2].X) > image2D.Width
? image2D.Width
: Math.Max(Math.Max(polygon[0].X, polygon[1].X), polygon[2].X);
int yMin = Math.Min(Math.Min(polygon[0].Y, polygon[1].Y), polygon[2].Y) < 0
? 0
: Math.Min(Math.Min(polygon[0].Y, polygon[1].Y), polygon[2].Y);
int yMax = Math.Max(Math.Max(polygon[0].Y, polygon[1].Y), polygon[2].Y) > image2D.Height
? image2D.Height
: Math.Max(Math.Max(polygon[0].Y, polygon[1].Y), polygon[2].Y);
BarycentricPoint barycentricPoint = new BarycentricPoint(polygon);
double l0 = MatrixUtil.cosDirectionEarthNormal(polygon.Norms[0]);
double l1 = MatrixUtil.cosDirectionEarthNormal(polygon.Norms[1]);
double l2 = MatrixUtil.cosDirectionEarthNormal(polygon.Norms[2]);
for (int x = xMin; x < xMax; x++)
{
for (int y = yMin; y < yMax; y++)
{
barycentricPoint.calculateLambds(new Point3D(x, y));
if (barycentricPoint.Lambda0 >= 0 && barycentricPoint.Lambda1 >= 0 && barycentricPoint.Lambda2 >= 0)
{
double z = barycentricPoint.Lambda0 * polygon[0].Z +
barycentricPoint.Lambda1 * polygon[1].Z +
barycentricPoint.Lambda2 * polygon[2].Z;
if (z < zBuffer.getZBuffer(x, y))
{
int brightness = (int)Math.Abs((255 * (barycentricPoint.Lambda0 * l0 +
barycentricPoint.Lambda1 * l1 +
barycentricPoint.Lambda2 * l2)));
zBuffer.setZBuffer(x, y, z);
image2D.setPixel(x, y, new ColorRGB(brightness, brightness, brightness));
}
}
}
}
}
public static void rawTriangleWithZBuffer(Polygon polygon, Image2D image2D, ColorRGB colorRgb, ZBuffer zBuffer)
{
int xMin = Math.Min(Math.Min(polygon[0].X, polygon[1].X), polygon[2].X) < 0
? 0
: Math.Min(Math.Min(polygon[0].X, polygon[1].X), polygon[2].X);
int xMax = Math.Max(Math.Max(polygon[0].X, polygon[1].X), polygon[2].X) > image2D.Width
? image2D.Width
: Math.Max(Math.Max(polygon[0].X, polygon[1].X), polygon[2].X);
int yMin = Math.Min(Math.Min(polygon[0].Y, polygon[1].Y), polygon[2].Y) < 0
? 0
: Math.Min(Math.Min(polygon[0].Y, polygon[1].Y), polygon[2].Y);
int yMax = Math.Max(Math.Max(polygon[0].Y, polygon[1].Y), polygon[2].Y) > image2D.Height
? image2D.Height
: Math.Max(Math.Max(polygon[0].Y, polygon[1].Y), polygon[2].Y);
BarycentricPoint barycentricPoint = new BarycentricPoint(polygon);
for (int x = xMin; x < xMax; x++)
{
for (int y = yMin; y < yMax; y++)
{
barycentricPoint.calculateLambds(new Point3D(x, y));
if (barycentricPoint.Lambda0 >= 0 && barycentricPoint.Lambda1 >= 0 && barycentricPoint.Lambda2 >= 0)
{
double z = barycentricPoint.Lambda0 * polygon[0].Z +
barycentricPoint.Lambda1 * polygon[1].Z +
barycentricPoint.Lambda2 * polygon[2].Z;
if (z < zBuffer.getZBuffer(x, y))
{
zBuffer.setZBuffer(x, y, z);
image2D.setPixel(x, y, colorRgb);
}
}
}
}
}
