private void Initialize()
{
_sphereData = new SphereData(sphereDataFilePathXml, true);
// Create the writeable bitmap will be used to write and update.
_bitmap = new WriteableBitmap(windowWidth, windowHeight, 96, 96, PixelFormats.Bgr32, null);
// Define the rectangle of the writeable image we will modify.
// The size is that of the writeable bitmap.
_rect = new Int32Rect(0, 0, _bitmap.PixelWidth, _bitmap.PixelHeight);
// Calculate the number of bytes per pixel.
int bytesPerPixel = (_bitmap.Format.BitsPerPixel + 7) / 8;
// Stride is bytes per pixel times the number of pixels.
// Stride is the byte width of a single rectangle row.
_stride = _bitmap.PixelWidth * bytesPerPixel;
// Create a byte array for a the entire size of bitmap.
_frameBuffer = new FrameBuffer(_bitmap.PixelWidth, _bitmap.PixelHeight, bytesPerPixel);
//Set light direction
_lightDirection = new Vector3(1.0f, -0.5f, 0.7f);
_lightDirection.Normalize();
}
public void RenderData(SphereData sphereData, float rotation, float colorLerpProgress, Vector3 lightDir)
{
List <SphereElement> spheres = sphereData.Spheres;
float rotationSin = (float)Math.Sin(rotation);
float rotationCos = (float)Math.Cos(rotation);
foreach (var sphere in spheres)
{
sphere.screenZ = sphere.x * rotationCos + sphere.z * rotationSin;
}
Task[] tasks = new Task[spheres.Count];
for (int taskIndex = 0; taskIndex < spheres.Count; ++taskIndex)
{
var sphere = spheres[taskIndex];
tasks[taskIndex] = Task.Run(() => RenderSphere(sphere, rotationSin, rotationCos, colorLerpProgress, lightDir));
}
Task.WaitAll(tasks);
}