private async Task <List <Pixel> > GetListAsync(Group group, int dx, int dy, int viceVersa, int width, int height, Bgr24Bitmap bitmap)
{
return(await Task.Run(() =>
{
List <Pixel> pixels = new List <Pixel>();
int count = 0;
ZBuffer zBuf = new ZBuffer(width, height);
Parallel.ForEach(group.Faces, face =>
{
if (IsFaceVisible(group.Vertices, face))
{
List <Pixel> pixelsForSide = new List <Pixel>();
List <Pixel> pixelsInSide = new List <Pixel>();
Vertex vertex0, vertex1;
int index0, index1;
Vector3 lightingVector = new Vector3(0, 0, 1);
int ind0 = (face.FaceElements.ElementAt(0).VertexNormalIndex != null) ? (int)face.FaceElements.ElementAt(0).VertexNormalIndex : 1;
Vector3 point0Normal = new Vector3(group.VertexNormals[ind0 - 1].X, group.VertexNormals[ind0 - 1].Y, group.VertexNormals[ind0 - 1].Z);
int ind1 = (face.FaceElements.ElementAt(1).VertexNormalIndex != null) ? (int)face.FaceElements.ElementAt(1).VertexNormalIndex : 1;
Vector3 point1Normal = new Vector3(group.VertexNormals[ind1 - 1].X, group.VertexNormals[ind1 - 1].Y, group.VertexNormals[ind1 - 1].Z);
int ind2 = (face.FaceElements.ElementAt(2).VertexNormalIndex != null) ? (int)face.FaceElements.ElementAt(2).VertexNormalIndex : 1;
Vector3 point2Normal = new Vector3(group.VertexNormals[ind2 - 1].X, group.VertexNormals[ind2 - 1].Y, group.VertexNormals[ind2 - 1].Z);
Color color = Color.FromArgb(255, 255, 0, 0);
Color point1Color = Lambert.GetPointColor(point0Normal, lightingVector, color);
Color point2Color = Lambert.GetPointColor(point1Normal, lightingVector, color);
Color point3Color = Lambert.GetPointColor(point2Normal, lightingVector, color);
Color faceColor = PlaneShading.GetAverageColor(point1Color, point2Color, point3Color);
for (int i = 0; i < face.FaceElements.Count - 1; i++)
{
index0 = (face.FaceElements.ElementAt(i).VertexIndex != -2) ? face.FaceElements.ElementAt(i).VertexIndex : (group.Vertices.Count - 1);
index1 = (face.FaceElements.ElementAt(i + 1).VertexIndex != -2) ? face.FaceElements.ElementAt(i + 1).VertexIndex : (group.Vertices.Count - 1);
vertex0 = group.Vertices.ElementAt(index0);
vertex1 = group.Vertices.ElementAt(index1);
pixelsForSide.AddRange(Bresenham.GetPixels((int)(vertex0.X + dx), (int)(vertex0.Y * viceVersa + dy), (int)(vertex0.Z), (int)(vertex1.X + dx), (int)(vertex1.Y * viceVersa + dy), (int)(vertex1.Z), windowWidth, windowHeight, bitmap, zBuf, faceColor));
}
index0 = (face.FaceElements.ElementAt(0).VertexIndex != -2) ? face.FaceElements.ElementAt(0).VertexIndex : (group.Vertices.Count - 1);
index1 = (face.FaceElements.ElementAt(face.FaceElements.Count - 1).VertexIndex != -2) ? face.FaceElements.ElementAt(face.FaceElements.Count - 1).VertexIndex : (group.Vertices.Count - 1);
vertex0 = group.Vertices.ElementAt(index0);
vertex1 = group.Vertices.ElementAt(index1);
pixelsForSide.AddRange(Bresenham.GetPixels((int)(vertex0.X + dx), (int)(vertex0.Y *viceVersa + dy), vertex0.Z, (int)(vertex1.X + dx), (int)(vertex1.Y *viceVersa + dy), vertex1.Z, windowWidth, windowHeight, bitmap, zBuf, faceColor));
RastAlgorithm.DrawPixelForRasterization(pixelsForSide, bitmap, zBuf, faceColor);
//pixels.AddRange(pixelsForSide);
//pixelsInSide.AddRange(RastAlgorithm.DrawPixelForRasterization(pixelsForSide, bitmap, zBuf));
//pixels.AddRange(pixelsInSide);
count++;
}
});
return pixels;
}));
}
private void DrawButton_Click(object sender, RoutedEventArgs e)
{
try
{
textureEnabled(false);
if (model != null)
{
WriteableBitmap source = new WriteableBitmap(width, height, 96, 96, PixelFormats.Bgra32, null);
Bgr24Bitmap bitmap = new Bgr24Bitmap(source);
ModelParams modelParams = GetModelsParams();
Model modelMain = model.Clone() as Model;
CoordTransformations.TransformFromWorldToView(modelMain, modelParams);
if (modelMain.CheckSize(width, height))
{
Color color = Color.FromRgb(byte.Parse(colorRTextBox.Text), byte.Parse(colorGTextBox.Text), byte.Parse(colorBTextBox.Text));
Vector3 lighting = new Vector3(int.Parse(lightVectorXTextBox.Text), int.Parse(lightVectorYTextBox.Text), -int.Parse(lightVectorZTextBox.Text));
if (bresenhamRadioButton.IsChecked == true)
{
// lab 1-2
BresenhamAlg bresenham = new BresenhamAlg(bitmap, modelMain);
bresenham.DrawModel(color);
}
else if (plainShadingRadioButton.IsChecked == true)
{
// lab 3
PlaneShading shader = new PlaneShading(bitmap, modelMain, new LambertLighting(lighting));
shader.DrawModel(color);
}
else if (phongShadingRadioButton.IsChecked == true)
{
textureEnabled(true);
// затенение фонга
Vector3 viewVector = new Vector3(int.Parse(colorRTextBox_View.Text), int.Parse(colorGTextBox_View.Text), int.Parse(colorBTextBox_View.Text));
Vector3 koef_a = new Vector3(float.Parse(colorRTextBox_A.Text), float.Parse(colorGTextBox_A.Text), float.Parse(colorBTextBox_A.Text));
Vector3 koef_d = new Vector3(float.Parse(colorRTextBox_D.Text), float.Parse(colorGTextBox_D.Text), float.Parse(colorBTextBox_D.Text));
Vector3 koef_s = new Vector3(float.Parse(colorRTextBox_S.Text), float.Parse(colorGTextBox_S.Text), float.Parse(colorBTextBox_S.Text));
Vector3 ambientColor = new Vector3(int.Parse(colorRTextBox_Ambient.Text), int.Parse(colorGTextBox_Ambient.Text), int.Parse(colorBTextBox_Ambient.Text));
Vector3 reflectionColor = new Vector3(int.Parse(colorRTextBox_Reflection.Text), int.Parse(colorGTextBox_Reflecion.Text), int.Parse(colorBTextBox_Reflection.Text));
float shiness = float.Parse(shinessBox.Text);
bool d = false, n = false, s = false;
if ((diffuseCheckBox != null && (bool)diffuseCheckBox.IsChecked))
{
d = true;
}
if ((normalCheckBox != null && (bool)normalCheckBox.IsChecked))
{
n = true;
}
if ((mirrorCheckBox != null && (bool)mirrorCheckBox.IsChecked))
{
s = true;
}
var light = new PhongLighting(lighting, viewVector, koef_a, koef_d, koef_s, ambientColor, reflectionColor, shiness, d, n, s);
//var light = new LambertLighting(lighting);
PhongShading shader = new PhongShading(bitmap, modelMain, light, d, n, s);
shader.DrawModel(color);
}
screenPictureBox.Source = bitmap.Source;
}
}
else
{
MessageBox.Show("Load an object");
}
}
catch (Exception ex)
{
MessageBox.Show("Произошла ошибка! " + ex);
}
}
