private void CreateBody()
{
uint[] data = new uint[_textureBodyXna.Width * _textureBodyXna.Height];
_textureBodyXna.GetData(data);
Vertices textureVertices = PolygonTools.CreatePolygon(data, _textureBodyXna.Width, true);
Vector2 centroid = -textureVertices.GetCentroid();
textureVertices.Translate(ref centroid);
Vector2 vertScale = new Vector2(ConvertUnits.ToSimUnits(1));
List <Vertices> triangulated = BayazitDecomposer.ConvexPartition(textureVertices);
triangulated.ForEach(v => v.Scale(ref vertScale));
_size = _calcSize(triangulated.SelectMany(v => v));
_origin = -centroid * vertScale;
body = CreateBodyByList(triangulated);
_parts = new Body[0];
_infos.Values.ToList().ForEach(info => info.Effect.Dispose());
_infos.Clear();
foreach (Fixture fixture in body.FixtureList)
{
Guid id = Guid.NewGuid();
fixture.UserData = id;
_infos[id] = new FixtureInfo(_effectXna.Clone(), fixture, _origin,
new Vector2(_diffuseTexture.Width, _diffuseTexture.Height)); //this.TextureSize
}
} // CreateBody()
//constructor
public SkyDome(ref Model newSkyDome, ref Texture2D newTexture, ref BasicEffect newEffect, ref GraphicsDeviceManager newDevice)
{
//initialize data memebers
skyDome = newSkyDome;
skytexture = newTexture;
effect = newEffect;
grapics = newDevice;
device = grapics.GraphicsDevice;
//set the effects of the model to the current effect being used
skyDome.Meshes[0].MeshParts[0].Effect = effect.Clone(device);
}
void DrawGround()
{
mEffect.View = Matrix.CreateLookAt(
mCameraPosition, mCameraLookAtVector, mCameraUpVector);
float aspectRatio =
mGraphicsDeviceManager.PreferredBackBufferWidth / (float)mGraphicsDeviceManager.PreferredBackBufferHeight;
float fieldOfView = MathHelper.PiOver4;
float nearClipPlane = 1;
float farClipPlane = 2000;
mEffect.Projection = Matrix.CreatePerspectiveFieldOfView(
fieldOfView, aspectRatio, nearClipPlane, farClipPlane);
mEffect.VertexColorEnabled = true;
mGraphicsDevice.SetVertexBuffer(vb);
mGraphicsDevice.Indices = ib;
// solid render
RasterizerState rSolidState = new RasterizerState();
rSolidState.FillMode = FillMode.Solid;
rSolidState.CullMode = CullMode.CullCounterClockwiseFace;
mGraphicsDevice.RasterizerState = rSolidState;
foreach (var pass in mEffect.CurrentTechnique.Passes)
{
pass.Apply();
mGraphicsDevice.DrawIndexedPrimitives(PrimitiveType.TriangleList, 0, 0, ib.IndexCount / 3);
}
// wireframe
BasicEffect wf = (BasicEffect)mEffect.Clone();
wf.DiffuseColor = Vector3.Zero;
wf.AmbientLightColor = Vector3.Zero;
wf.EmissiveColor = Vector3.Zero;
wf.SpecularColor = Vector3.Zero;
RasterizerState rWFState = new RasterizerState();
rWFState.FillMode = FillMode.WireFrame;
rWFState.CullMode = CullMode.CullCounterClockwiseFace;
mGraphicsDevice.RasterizerState = rWFState;
foreach (var pass in wf.CurrentTechnique.Passes)
{
pass.Apply();
mGraphicsDevice.DrawIndexedPrimitives(PrimitiveType.TriangleList, 0, 0, ib.IndexCount / 3);
}
}
protected override void LoadContent()
{
_cube = Game.Content.Load <Model>("chamfercube");
foreach (ModelMesh mesh in _cube.Meshes)
{
foreach (ModelMeshPart part in mesh.MeshParts)
{
var effect = part.Effect as BasicEffect;
Texture2D tmpTex = (effect != null) ? effect.Texture : null;
part.Effect = _basicEffect.Clone(GraphicsDevice);
((BasicEffect)part.Effect).Texture = tmpTex;
}
}
base.LoadContent();
}
/// <summary>
/// Create the default material.
/// </summary>
/// <param name="fromEffect">Effect to create material from.</param>
/// <param name="copyEffectProperties">If true, will copy initial properties from effect.</param>
public BasicMaterial(BasicEffect fromEffect, bool copyEffectProperties = true)
{
// store effect and set default properties
_effect = fromEffect.Clone() as BasicEffect;
SetDefaults();
// copy properties from effect itself
if (copyEffectProperties)
{
// set effect defaults
Texture = fromEffect.Texture;
TextureEnabled = fromEffect.TextureEnabled;
Alpha = fromEffect.Alpha;
AmbientLight = new Color(fromEffect.AmbientLightColor.X, fromEffect.AmbientLightColor.Y, fromEffect.AmbientLightColor.Z);
DiffuseColor = new Color(fromEffect.DiffuseColor.X, fromEffect.DiffuseColor.Y, fromEffect.DiffuseColor.Z);
SpecularColor = new Color(fromEffect.SpecularColor.X, fromEffect.SpecularColor.Y, fromEffect.SpecularColor.Z);
SpecularPower = fromEffect.SpecularPower;
// enable lightings by default
_effect.EnableDefaultLighting();
_effect.LightingEnabled = true;
}
}