public static Vector3[,] BitmapToVectors(Bitmap bitmap)
{
Vector3[,] textureVectors = new Vector3[bitmap.Width, bitmap.Height];
for (int i = 0; i < bitmap.Width; i++)
{
for (int j = 0; j < bitmap.Height; j++)
{
textureVectors[i, j] = LibrariesConverters.ColorToVector(bitmap.GetPixel(i, j));
}
}
return(textureVectors);
}
public void CalculateNMap()
{
Vector3 N;
for (int i = 0; i < Width; i++)
{
for (int j = 0; j < Height; j++)
{
N = IsNormalConst ? NormalVector : IsNormalFunction?CalculateNormalFromFunction(i, j) : LibrariesConverters.ColorToNormalVector(NormalMap[i % NormalMap.Width, j % NormalMap.Height].Color);
N = Vector3.Normalize(N);
if (!IsHeightConst)
{
Vector3 TV = new Vector3(1, 0, -N.X / N.Z);
Vector3 BV = new Vector3(0, 1, -N.Y / N.Z);
float dX = HeightMap[(i + 1) % HeightMap.Width, j % HeightMap.Height].Color.R - HeightMap[i % HeightMap.Width, j % HeightMap.Height].Color.R;
float dY = HeightMap[i % HeightMap.Width, (j + 1) % HeightMap.Height].Color.R - HeightMap[i % HeightMap.Width, j % HeightMap.Height].Color.R;
Vector3 D = TV * dX + BV * dY;
N += D * HeightRate;
N = Vector3.Normalize(N);
}
if (float.IsNaN(N.X) || float.IsNaN(N.Y) || float.IsNaN(N.Z))
{
N = new Vector3(0, 0, 1);
}
NMap[i, j] = N;
}
}
}