public override void Initialize()
{
_treeProfile = Content.Load<TreeProfile>("Trees/Graywood");
_tree = new SunlitSimpleTree(_treeProfile.GenerateSimpleTree());
_tree.Lighting = _sky;
// Scale tree down to a desired height
const int desiredHeight = 6;
float treeModelHeight = _tree.TrunkMesh.BoundingSphere.Radius*2;
_scale = Matrix.CreateScale(desiredHeight/treeModelHeight);
Position = _position;
_wind = new WindStrengthSin();
_animator = new TreeWindAnimator(_wind);
base.Initialize();
}
/// <summary>
/// Load your graphics content.
/// </summary>
protected override void LoadContent()
{
spriteBatch = new SpriteBatch(GraphicsDevice);
// Calculate the projection matrix.
Viewport viewport = GraphicsDevice.Viewport;
float aspectRatio = (float)viewport.Width / (float)viewport.Height;
projection = Matrix.CreatePerspectiveFieldOfView(MathHelper.PiOver4,
aspectRatio,
1, 10000);
terrain = Content.Load<Model>("terrain");
BasicDirectionalLight terrainDirectionalLight = null;
directionToSun = Vector3.Normalize(new Vector3(2f, 0.2f, -1.0f));
foreach (ModelMesh mesh in terrain.Meshes)
{
foreach (BasicEffect effect in mesh.Effects)
{
effect.Projection = projection;
effect.PreferPerPixelLighting = true;
// Set the specular lighting to match the sky color.
effect.SpecularColor = new Vector3(0f);
// Set the fog to match the distant mountains
// that are drawn into the sky texture.
effect.FogEnabled = false;
effect.FogColor = new Vector3(0.15f);
effect.FogStart = 100;
effect.FogEnd = 320;
effect.EnableDefaultLighting();
effect.AmbientLightColor = new Vector3(0.5f, 0.5f, 0.5f);
effect.DirectionalLight1.Enabled = false;
effect.DirectionalLight2.Enabled = false;
effect.DirectionalLight0.Direction = -directionToSun;
effect.DiffuseColor = new Vector3(1f, 1f, 1f);
terrainDirectionalLight = effect.DirectionalLight0;
}
}
heightmap = Content.Load<Texture2D>("Textures/terrain");
CalculateHeightValues();
sky = Content.Load<Sky>("skybox");
sunTexture = Content.Load<Texture2D>("Textures/Sun");
backbufferWidth = graphics.PreferredBackBufferWidth;
backbufferHeight = graphics.PreferredBackBufferHeight;
lightScatterPostProcess = Content.Load<Effect>("Effects/LightScatterPostProcess");
//Setup post-process parameters
lightScatterPostProcess.Parameters["Density"].SetValue(0.95f);
lightScatterPostProcess.Parameters["Weight"].SetValue(1f / 120f * 1.2f);
lightScatterPostProcess.Parameters["Decay"].SetValue(0.991f);
lightScatterPostProcess.Parameters["Exposure"].SetValue(0.5f);
//Trees
Random r = new Random(Environment.TickCount);
treeProfile = Content.Load<TreeProfile>("Trees/Willow");
wind = new WindStrengthSin(0.1f);
windAnimator = new TreeWindAnimator(wind);
trees = new LinkedList<Tree>();
for (int i = 0; i < 300; i++)
{
SimpleTree simpleTree = treeProfile.GenerateSimpleTree();
simpleTree.LeafEffect.CurrentTechnique = simpleTree.LeafEffect.Techniques["SetNoRenderStates"];
simpleTree.TrunkEffect.Parameters["DirLight0DiffuseColor"].SetValue(new Vector4(terrainDirectionalLight.DiffuseColor, 1f));
simpleTree.TrunkEffect.Parameters["DirLight0Direction"].SetValue(terrainDirectionalLight.Direction);
simpleTree.TrunkEffect.Parameters["DirLight1Enabled"].SetValue(false);
simpleTree.LeafEffect.Parameters["DirLight0DiffuseColor"].SetValue(new Vector4(terrainDirectionalLight.DiffuseColor, 1f));
simpleTree.LeafEffect.Parameters["DirLight0Direction"].SetValue(terrainDirectionalLight.Direction);
simpleTree.LeafEffect.Parameters["DirLight1Enabled"].SetValue(false);
int x = r.Next((int)(terrainWidth / terrainScale));
int z = r.Next((int)(terrainHeight / terrainScale));
float y = heightValues[x, z];
x *= (int)terrainScale;
z *= (int)terrainScale;
Vector3 position = new Vector3(x, y, z) - new Vector3(terrainWidth * 0.5f, 0f, terrainHeight * 0.5f);
Matrix scale = Matrix.CreateScale(Vector3.Lerp(new Vector3(0.005f), new Vector3(0.015f), (float)r.NextDouble()));
trees.AddLast(new Tree(simpleTree, scale * Matrix.CreateTranslation(position)));
}
//Render targets
sceneRenderTarget = new RenderTarget2D(GraphicsDevice, backbufferWidth, backbufferHeight,
1, SurfaceFormat.Color, GraphicsDevice.PresentationParameters.MultiSampleType,
GraphicsDevice.PresentationParameters.MultiSampleQuality);
lightScatterRenderTarget = new RenderTarget2D(GraphicsDevice, backbufferWidth, backbufferHeight,
1, SurfaceFormat.Color, GraphicsDevice.PresentationParameters.MultiSampleType,
GraphicsDevice.PresentationParameters.MultiSampleQuality);
//FPS
fpsFont = Content.Load<SpriteFont>("Fonts/Verdana");
}