public void InitializeZBuffer(int width, int height)
{
_zBuffer = new float[width, height];
arguments = new ShadingArguments[width, height];
Parallel.For(0, width, i =>
{
Parallel.For(0, height, j =>
{
_zBuffer[i, j] = float.PositiveInfinity;
arguments[i, j] = new ShadingArguments(null, Vector4.Zero, Vector4.Zero, Vector4.Zero);
});
});
}
public void FinalFill()
{
Parallel.For(minX, maxX + 1, i =>
{
Parallel.For(minY, maxY + 1, j =>
{
ShadingArguments shadingArguments = arguments[i, j];
if (shadingArguments.Camera != null)
{
Color finalColor = Shader.FragmentShader(shadingArguments.Camera, shadingArguments.Point,
shadingArguments.Normal, shadingArguments.IO);
DirectBitmap.SetPixel(i, j, finalColor);
arguments[i, j] = new ShadingArguments(null, Vector4.Zero, Vector4.Zero, Vector4.Zero);
_zBuffer[i, j] = float.PositiveInfinity;
}
});
});
}
private FilledTriangle PrepareForFilling(FilledTriangle triangle, Camera camera, int j, int y, int y1, Vector3 barycentricCoords, float zp)
{
Vector4 normal = Vector4.Zero;
Vector4 point = Vector4.Zero;
;
Vector4 IO = Vector4.One;
if (Shader.Settings.IsPhong == true)
{
normal = CalculateNormal(barycentricCoords, triangle);
point = CalculatePoint(barycentricCoords, triangle);
IO = triangle.Vertices[0].Color;
}
else
{
IO = CalculateColor(barycentricCoords, triangle);
}
arguments[j, y - 1] = new ShadingArguments(camera, point, normal, IO);
_zBuffer[j, y1 - 1] = zp;
if (j <= minX)
{
minX = j;
}
if (j >= maxX)
{
maxX = j;
}
if (y - 1 <= minY)
{
minY = y - 1;
}
if (y - 1 >= maxY)
{
maxY = y - 1;
}
return(triangle);
}
