unsafe void Draw()
{
m_bmp.Lock();
for (int y = 0; y < m_bmp.PixelHeight; ++y)
{
int *p = (int *)(m_bmp.BackBuffer + m_bmp.BackBufferStride * y);
for (int x = 0; x < m_bmp.PixelWidth; ++x)
{
double fx = (double)x / m_bmp.PixelWidth;
double fy = (double)y / m_bmp.PixelHeight;
Color3 c = PS(fx, fy);
p[x] = c.ToBgra();
}
}
m_bmp.AddDirtyRect(new Int32Rect(0, 0, m_bmp.PixelWidth, m_bmp.PixelHeight));
m_bmp.Unlock();
}