/// <summary>
/// Called when it is time to draw a frame.
/// </summary>
public override void Draw()
{
// Clears the background
Display.ClearBuffers();
Display.Shader = SceneShader;
// Draws with the index buffer
SceneShader.SetUniform("modelview_matrix", ModelViewMatrix);
SceneShader.SetUniform("projection_matrix", ProjectionMatrix);
Vector3 Position = new Vector3(0.0f, 0.0f, -5.0f);
SceneShader.SetUniform("mvp_matrix", Matrix4.CreateTranslation(Position) * ModelViewMatrix * ProjectionMatrix);
Plane.Draw();
SceneShader.SetUniform("mvp_matrix", Matrix4.CreateRotationY(Yaw) * ModelViewMatrix * ProjectionMatrix);
Torus.Draw();
// Some dummy text
SpriteBatch.Begin();
SpriteBatch.DrawString(Font, new Vector2(10, 15), Color.White, "Here's an example of shadow mapping.");
SpriteBatch.End();
}
/// <summary>
/// Loads contents
/// </summary>
public override void LoadContent()
{
Display.RenderState.ClearColor = Color.CornflowerBlue;
Display.RenderState.DepthTest = true;
#region Mesh
//Mesh = PlyLoader.LoadPly("data/bunny.ply");
Torus = Mesh.CreateTorus(0.5f, 1.0f, 32, 32);
Plane = Mesh.CreatePlane(10.0f);
#endregion
#region Shader
SceneShader = Shader.CreateFromFile("shaders/scene.vert", "shaders/scene.frag");
SceneShader.Compile();
#endregion
#region Font
SpriteBatch = new SpriteBatch();
Font = BitmapFont.CreateFromTTF(@"c:\windows\fonts\verdana.ttf", 10, FontStyle.Regular);
#endregion
// Frame buffer
FrameBuffer = new FrameBuffer(new Size(512, 512));
Camera = new Vector3(-5.0f, 5.0f, 10.0f);
Light = new Vector3(0.0f, 0.0f, 10.0f);
// Matrices
ModelViewMatrix = Matrix4.LookAt(Camera, Vector3.Zero, Vector3.UnitY);
float aspectRatio = (float)Display.ViewPort.Width / (float)Display.ViewPort.Height;
ProjectionMatrix = Matrix4.CreatePerspectiveFieldOfView(MathHelper.DegreesToRadians(40.0f), aspectRatio, 1.0f, 100.0f);
// Rotation
Yaw = 0.0f;
}
/// <summary>
/// Unload contents
/// </summary>
public override void UnloadContent()
{
if (Plane != null)
{
Plane.Dispose();
}
Plane = null;
if (Torus != null)
{
Torus.Dispose();
}
Torus = null;
if (SceneShader != null)
{
SceneShader.Dispose();
}
SceneShader = null;
if (Font != null)
{
Font.Dispose();
}
Font = null;
if (SpriteBatch != null)
{
SpriteBatch.Dispose();
}
SpriteBatch = null;
if (FrameBuffer != null)
{
FrameBuffer.Dispose();
}
FrameBuffer = null;
}
