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;
}));
}