/// <summary>
/// Initializes a new instance of the <see cref="ARPanel">Augmented Reality Panel</see> control.
/// </summary>
public ARPanel()
{
SizeChanged += panel_SizeChanged;
Loaded += panel_Loaded;
Unloaded += panel_Unloaded;
view = Matrix.CreateLookAt(new Vector3(0, 0, 1), Vector3.Zero, Vector3.Up);
world = Matrix.CreateWorld(Vector3.Zero, new Vector3(0, 0, -1), new Vector3(0, 1, 0));
if (IsDesignMode)
{
_attitude = Matrix.Identity; //This will make control render design time looking horizontal north
}
}
private void CurrentValueChanged(MotionReading reading)
{
if (viewport.Width == 0)
{
InitializeViewport();
}
// Get the RotationMatrix from the MotionReading.
// Rotate it 90 degrees around the X axis to put it in xna coordinate system.
Matrix attitude = Matrix.CreateRotationX(MathHelper.PiOver2) * reading.Attitude.RotationMatrix;
// Loop through the points in the list
for (int i = 0; i < points.Count; i++)
{
// Create a World matrix for the point.
Matrix world = Matrix.CreateWorld(points[i], new Vector3(0, 0, 1), new Vector3(0, 1, 0));
// Use Viewport.Project to project the point from 3D space into screen coordinates.
Vector3 projected = viewport.Project(Vector3.Zero, projection, view, world * attitude);
if (projected.Z > 1 || projected.Z < 0)
{
// If the point is outside of this range, it is behind the camera.
// So hide the TextBlock for this point.
textBlocks[i].Visibility = Visibility.Collapsed;
}
else
{
// Otherwise, show the TextBlock
textBlocks[i].Visibility = Visibility.Visible;
// Create a TranslateTransform to position the TextBlock.
// Offset by half of the TextBlock's RenderSize to center it on the point.
TranslateTransform tt = new TranslateTransform();
tt.X = projected.X - (textBlocks[i].RenderSize.Width / 2);
tt.Y = projected.Y - (textBlocks[i].RenderSize.Height / 2);
textBlocks[i].RenderTransform = tt;
}
}
}
public Sun()
{
Transform = Matrix.CreateWorld(new Vector3(), Vector3.Forward, Vector3.Up);
}
MathboxRenderer(Machine machine, ScreenManager screenManager)
{
Machine = machine;
Memory = Machine.Mathbox.Memory16;
ScreenManager = screenManager;
if (!(screenManager.Game is I_Robot.Game game))
{
throw new Exception("VideoInterpreter can only be used with I_Robot.Game");
}
Game = game;
DisplayListManager = new DisplayList.Manager(this);
Object = new ObjectRenderer(this);
Terrain = new TerrainRenderer(this);
// create our scene buffer
// this buffer has a z-buffer
SceneBuffer = new RenderTarget2D(
Game.GraphicsDevice,
Game.GraphicsDevice.Viewport.Width,
Game.GraphicsDevice.Viewport.Height,
false,
Game.GraphicsDevice.PresentationParameters.BackBufferFormat,
DepthFormat.None,
8,
RenderTargetUsage.DiscardContents);
// create our two screen buffers
// these buffers do not require depth sorting, they are simply raw bitmaps
// however the contents need to be preserved when rendering context is reset
for (int n = 0; n < ScreenBuffers.Length; n++)
{
ScreenBuffers[n] = new RenderTarget2D(
Game.GraphicsDevice,
Game.GraphicsDevice.Viewport.Width,
Game.GraphicsDevice.Viewport.Height,
false,
Game.GraphicsDevice.PresentationParameters.BackBufferFormat,
DepthFormat.None,
0,
RenderTargetUsage.PreserveContents);
}
camTarget = new Vector3(0f, 0f, 0f);
camPosition = new Vector3(0f, 0f, -1f);
double scaleToMonitor = Emulation.Machine.MonitorAspectRatio / Emulation.Machine.NativeAspectRatio;
projectionMatrix = Matrix.CreatePerspectiveFieldOfView(
MathHelper.ToRadians(45f),
(float)(Game.GraphicsDevice.Viewport.AspectRatio / scaleToMonitor),
0.1f,
65536f);
// it's important to move the projection matrix down a bit, this matches what I, Robot seems to do
projectionMatrix = projectionMatrix * Matrix.CreateTranslation(new Vector3(0, -0.1f, 0));
viewMatrix = Matrix.CreateLookAt(camPosition, camTarget, Vector3.Up);
worldMatrix = Matrix.CreateWorld(Vector3.Zero, Vector3.Forward, Vector3.Down);
basicEffect = new BasicEffect(Game.GraphicsDevice);
basicEffect.Alpha = 1f;
basicEffect.VertexColorEnabled = true; // Want to see the colors of the vertices, this needs to be on
// Lighting requires normal information which VertexPositionColor does not have
// If you want to use lighting and VPC you need to create a custom def
basicEffect.LightingEnabled = false;
}