private Metaball CreateMetaball()
{
Metaball m = new Metaball
{
Position =
new Vector2(rand.Next(GraphicsDevice.Viewport.Width), rand.Next(GraphicsDevice.Viewport.Height)),
Texture = metaballTexture
};
m.Initialize(rand.Next());
return(m);
}
/// <summary>
/// LoadContent will be called once per game and is the place to load
/// all of your content.
/// </summary>
protected override void LoadContent()
{
// Create a new SpriteBatch, which can be used to draw textures.
spriteBatch = new SpriteBatch(GraphicsDevice);
this.texture = new Texture2D(graphics.GraphicsDevice, graphics.PreferredBackBufferWidth, graphics.PreferredBackBufferHeight, false, SurfaceFormat.Color);
this.data = new uint[graphics.PreferredBackBufferWidth * graphics.PreferredBackBufferHeight];
metaballs = new Metaball[3];
metaballs[0] = new Metaball { CenterX = 400, CenterY = 240, Radius = 40 };
metaballs[1] = new Metaball { CenterX = 300, CenterY = 150, Radius = 30 };
metaballs[2] = new Metaball { CenterX = 350, CenterY = 375, Radius = 20 };
}
/// <summary>
/// LoadContent will be called once per game and is the place to load
/// all of your content.
/// </summary>
protected override void LoadContent()
{
//Set up the reference grid and sample camera
grid = new SampleGrid { GridColor = Color.LimeGreen, GridScale = 10.0f, GridSize = 100 };
grid.LoadGraphicsContent(graphics.GraphicsDevice);
// Create a new SpriteBatch, which can be used to draw textures.
basicEffect = new BasicEffect(GraphicsDevice);
metaballs = new Metaball[2];
metaballs[0] = new Metaball { CenterX = 60, CenterY = 60, CenterZ = 50, Radius = 40 };
metaballs[1] = new Metaball { CenterX = 130, CenterY = 60, CenterZ = 70, Radius = 40 };
// metaballs[2] = new Metaball { CenterX = 150, CenterY = 75, CenterZ = 100, Radius = 20 };
marchingCubeAlgorithm = new MarchingCubeAlgorithm();
vertexBuffer = new VertexBuffer(GraphicsDevice, typeof(VertexPositionNormalTexture), 3, BufferUsage.WriteOnly);
//vertexBuffer.SetData<VertexPositionColor>(vertices);
//grid requires a projection matrix to draw correctly
grid.ProjectionMatrix = projection;
//Set the grid to draw on the x/z plane around the origin
grid.WorldMatrix = Matrix.Identity;
RasterizerState rasterizerState = new RasterizerState();
rasterizerState.CullMode = CullMode.None;
GraphicsDevice.RasterizerState = rasterizerState;
basicEffect.World = world;
basicEffect.View = view;
basicEffect.Projection = projection;
basicEffect.VertexColorEnabled = false;
basicEffect.LightingEnabled = true;
basicEffect.EnableDefaultLighting();
basicEffect.PreferPerPixelLighting = true;
basicEffect.AmbientLightColor = new Vector3(0.2f, 0.1f, 0.7f);
for (int z = 0; z < 50; z++)
{
for (int y = 0; y < 50; y++)
{
for (int x = 0; x < 50; x++)
{
var index = z * 50 * 50 + y * 50 + x;
// Grid edge length
var g = 5;
gridCells[index] = new GridCell();
gridCells[index].point[0] = new Vector3(x * g, y * g, z * g);
gridCells[index].point[1] = new Vector3(x * g + g, y * g, z * g);
gridCells[index].point[2] = new Vector3(x * g + g, y * g, z * g + g);
gridCells[index].point[3] = new Vector3(x * g, y * g, z * g + g);
gridCells[index].point[4] = new Vector3(x * g, y * g + g, z * g);
gridCells[index].point[5] = new Vector3(x * g + g, y * g + g, z * g);
gridCells[index].point[6] = new Vector3(x * g + g, y * g + g, z * g + g);
gridCells[index].point[7] = new Vector3(x * g, y * g + g, z * g + g);
}
}
}
}
