public void DrawObject(Object3D obj, Color color, Vec3f lightDirection, float c = 5)
{
var Width = graphicsProvider.Width;
var Height = graphicsProvider.Height;
var vertexesFromMem = new Vec3f[3];
var vertexes = new Vec3i[3];
for (int i = 0; i < graphicsProvider.Width; i++)
{
for (int j = 0; j < graphicsProvider.Height; j++)
{
zbuffer[i, j] = Int32.MinValue;
}
}
foreach (var face in obj.Faces)
{
//Работает медленно
vertexesFromMem[0] = (obj.Vertexes.ElementAt(face.v1.v - 1));
vertexesFromMem[1] = (obj.Vertexes.ElementAt(face.v2.v - 1));
vertexesFromMem[2] = (obj.Vertexes.ElementAt(face.v3.v - 1));
for (int i = 0; i < vertexes.Length; i++)
{
Vec3f v = vertexesFromMem[i];
v *= c;
vertexes[i] = new Vec3i(new Vec3f(Width / 2, Height / 2, 0) - new Vec3f(-v.X, v.Y, -v.Z));
}
//color = Color.FromArgb(random.Next(255), random.Next(255), random.Next(255));
Vec3f normal = Vec3f.VecMul(vertexesFromMem[2] - vertexesFromMem[0], vertexesFromMem[1] - vertexesFromMem[0]);
normal.Normalize();
float intensity = normal * lightDirection;
if (intensity > 1.0f)
{
//Костыль
intensity = 1.0f;
}
if (intensity > 0)
{
DrawTriangle(vertexes[0], vertexes[1], vertexes[2], Color.FromArgb(
(int)(color.R * intensity),
(int)(color.G * intensity),
(int)(color.B * intensity)
));
}
}
}