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protected override void LoadContent()
{
// 新規の SpriteBatch を作成します。これはテクスチャーの描画に使用できます。
spriteBatch = new SpriteBatch(GraphicsDevice);
// TODO: this.Content クラスを使用して、ゲームのコンテンツを読み込みます。
texture = Content.Load<Texture2D>("test_pic");
UseBasicEffectInitMatrix();
UseBasicEffectInitEffect();
cubeVerticesInit();
}
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protected override void Draw(GameTime gameTime)
{
GraphicsDevice.Clear(Color.CornflowerBlue);
// TODO: ここに描画コードを追加します。
DrawPrim();
base.Draw(gameTime);
}
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public partial class Game1
{
//3D表示に必要なパラメータ
Matrix worldMatrix; //ワールド行列
Matrix viewMatrix; //ビュー行列
Matrix projectionMatrix; //射影行列
VertexPositionNormalTexture[] cubeVertices; //頂点データ
VertexBuffer vertexBuffer; //頂点バッファー
BasicEffect basicEffect; //エフェクト
Texture2D texture;
private void UseBasicEffectInitMatrix()
{
//3D表示に必要な行列を初期化している
float tilt = MathHelper.ToRadians(0);
worldMatrix = Matrix.CreateRotationX(tilt) * Matrix.CreateRotationY(tilt);
viewMatrix = Matrix.CreateLookAt(new Vector3(5, 5, 5), Vector3.Zero, Vector3.Up);
projectionMatrix = Matrix.CreatePerspectiveFieldOfView(MathHelper.ToRadians(45), GraphicsDevice.Viewport.AspectRatio, 1.0f, 100f);
}
private void UseBasicEffectInitEffect()
{
//エフェクトを初期化します
basicEffect = new BasicEffect(GraphicsDevice);
basicEffect.TextureEnabled = true;
basicEffect.Texture = texture;
//シーン表示に必要な各行列をセット
basicEffect.World = worldMatrix;
basicEffect.View = viewMatrix;
basicEffect.Projection = projectionMatrix;
//シーンの環境を設定
basicEffect.AmbientLightColor = new Vector3(0.1f, 0.1f, 0.1f);
basicEffect.DiffuseColor = new Vector3(1f, 1f, 1f);
basicEffect.SpecularColor = new Vector3(0.3f, 0.3f, 0.3f);
basicEffect.SpecularPower = 5.0f;
basicEffect.Alpha = 1.0f;
basicEffect.LightingEnabled = true;
//ライティング（BasicEffectクラスはディレクショナルライトを３つまでサポートしている）
if (basicEffect.LightingEnabled)
{
basicEffect.DirectionalLight0.Enabled = true;
if (basicEffect.DirectionalLight0.Enabled)
{
basicEffect.DirectionalLight0.DiffuseColor = new Vector3(1, 0, 0); //ライトのディフューズ
basicEffect.DirectionalLight0.Direction = Vector3.Normalize(new Vector3(-1, 0, 0)); //方向
basicEffect.DirectionalLight0.SpecularColor = Vector3.One; //ライトのスペキュラカラー
}
basicEffect.DirectionalLight1.Enabled = true;
if (basicEffect.DirectionalLight1.Enabled)
{
basicEffect.DirectionalLight1.DiffuseColor = new Vector3(0, 1, 0);
basicEffect.DirectionalLight1.Direction = Vector3.Normalize(new Vector3(0, -1, 0));
basicEffect.DirectionalLight1.SpecularColor = Vector3.One;
}
basicEffect.DirectionalLight2.Enabled = true;
if (basicEffect.DirectionalLight2.Enabled)
{
basicEffect.DirectionalLight2.DiffuseColor = new Vector3(0, 0, 1);
basicEffect.DirectionalLight2.Direction = Vector3.Normalize(new Vector3(0, 0, -1));
basicEffect.DirectionalLight2.SpecularColor = Vector3.One;
}
}
}
private void cubeVerticesInit()
{
cubeVertices = new VertexPositionNormalTexture[36];
//６面体の前面
Vector3 topLeftFront = new Vector3(-1.0f, 1.0f, 1.0f);
Vector3 bottomLeftFront = new Vector3(-1.0f, -1.0f, 1.0f);
Vector3 topRightFront = new Vector3(1.0f, 1.0f, 1.0f);
Vector3 bottomRightFront = new Vector3(1.0f, -1.0f, 1.0f);
//６面体の背面
Vector3 topLeftBack = new Vector3(-1.0f, 1.0f, -1.0f);
Vector3 bottomLeftBack = new Vector3(-1.0f, -1.0f, -1.0f);
Vector3 topRightBack = new Vector3(1.0f, 1.0f, -1.0f);
Vector3 bottomRightBack = new Vector3(1.0f, -1.0f, -1.0f);
//テクスチャの４隅
Vector2 textureTopLeft = new Vector2(0.0f, 0.0f);
Vector2 textureTopRight = new Vector2(1.0f, 0.0f);
Vector2 textureBottomLeft = new Vector2(0.0f, 1.0f);
Vector2 textureBottomRight = new Vector2(1.0f, 1.0f);
//法線
Vector3 frontNormal = new Vector3(0.0f, 0.0f, 1.0f);
Vector3 backNormal = new Vector3(0.0f, 0.0f, -1.0f);
Vector3 topNormal = new Vector3(0.0f, 1.0f, 0.0f);
Vector3 bottomNormal = new Vector3(0.0f, -1.0f, 0.0f);
Vector3 leftNormal = new Vector3(-1.0f, 0.0f, 0.0f);
Vector3 rightNormal = new Vector3(1.0f, 0.0f, 0.0f);
//ここより実際にポリゴンのプリミティブを作成している
//前面(三角形面ふたつで構成した４角形面、反時計回りに頂点配列を並べている点に注目)
cubeVertices[0] = new VertexPositionNormalTexture(topLeftFront, frontNormal, textureTopLeft);
cubeVertices[1] = new VertexPositionNormalTexture(bottomLeftFront, frontNormal, textureBottomLeft);
cubeVertices[2] = new VertexPositionNormalTexture(topRightFront, frontNormal, textureTopRight);
cubeVertices[3] = new VertexPositionNormalTexture(bottomLeftFront, frontNormal, textureBottomLeft);
cubeVertices[4] = new VertexPositionNormalTexture(bottomRightFront, frontNormal, textureBottomRight);
cubeVertices[5] = new VertexPositionNormalTexture(topRightFront, frontNormal, textureTopRight);
//背面（裏なので時計回りに配列している点に注目）
cubeVertices[6] = new VertexPositionNormalTexture(bottomLeftBack, backNormal, textureTopRight);
cubeVertices[7] = new VertexPositionNormalTexture(topRightBack, backNormal, textureTopLeft);
cubeVertices[8] = new VertexPositionNormalTexture(bottomLeftBack, backNormal, textureBottomRight);
cubeVertices[9] = new VertexPositionNormalTexture(bottomLeftBack, backNormal, textureBottomRight);
cubeVertices[10] = new VertexPositionNormalTexture(topRightBack, backNormal, textureTopLeft);
cubeVertices[11] = new VertexPositionNormalTexture(bottomRightBack, backNormal, textureBottomLeft);
// Top face.
cubeVertices[12] =
new VertexPositionNormalTexture(
topLeftFront, topNormal, textureBottomLeft);
cubeVertices[13] =
new VertexPositionNormalTexture(
topRightBack, topNormal, textureTopRight);
cubeVertices[14] =
new VertexPositionNormalTexture(
topLeftBack, topNormal, textureTopLeft);
cubeVertices[15] =
new VertexPositionNormalTexture(
topLeftFront, topNormal, textureBottomLeft);
cubeVertices[16] =
new VertexPositionNormalTexture(
topRightFront, topNormal, textureBottomRight);
cubeVertices[17] =
new VertexPositionNormalTexture(
topRightBack, topNormal, textureTopRight);
// Bottom face.
cubeVertices[18] =
new VertexPositionNormalTexture(
bottomLeftFront, bottomNormal, textureTopLeft);
cubeVertices[19] =
new VertexPositionNormalTexture(
bottomLeftBack, bottomNormal, textureBottomLeft);
cubeVertices[20] =
new VertexPositionNormalTexture(
bottomRightBack, bottomNormal, textureBottomRight);
cubeVertices[21] =
new VertexPositionNormalTexture(
bottomLeftFront, bottomNormal, textureTopLeft);
cubeVertices[22] =
new VertexPositionNormalTexture(
bottomRightBack, bottomNormal, textureBottomRight);
cubeVertices[23] =
new VertexPositionNormalTexture(
bottomRightFront, bottomNormal, textureTopRight);
// Left face.
cubeVertices[24] =
new VertexPositionNormalTexture(
topLeftFront, leftNormal, textureTopRight);
cubeVertices[25] =
new VertexPositionNormalTexture(
bottomLeftBack, leftNormal, textureBottomLeft);
cubeVertices[26] =
new VertexPositionNormalTexture(
bottomLeftFront, leftNormal, textureBottomRight);
cubeVertices[27] =
new VertexPositionNormalTexture(
topLeftBack, leftNormal, textureTopLeft);
cubeVertices[28] =
new VertexPositionNormalTexture(
bottomLeftBack, leftNormal, textureBottomLeft);
cubeVertices[29] =
new VertexPositionNormalTexture(
topLeftFront, leftNormal, textureTopRight);
// Right face.
cubeVertices[30] =
new VertexPositionNormalTexture(
topRightFront, rightNormal, textureTopLeft);
cubeVertices[31] =
new VertexPositionNormalTexture(
bottomRightFront, rightNormal, textureBottomLeft);
cubeVertices[32] =
new VertexPositionNormalTexture(
bottomRightBack, rightNormal, textureBottomRight);
cubeVertices[33] =
new VertexPositionNormalTexture(
topRightBack, rightNormal, textureTopRight);
cubeVertices[34] =
new VertexPositionNormalTexture(
topRightFront, rightNormal, textureTopLeft);
cubeVertices[35] =
new VertexPositionNormalTexture(
bottomRightBack, rightNormal, textureBottomRight);
//実質的なデーターの投入
vertexBuffer = new VertexBuffer(GraphicsDevice, VertexPositionNormalTexture.VertexDeclaration, cubeVertices.Length, BufferUsage.None);
vertexBuffer.SetData<VertexPositionNormalTexture>(cubeVertices);
GraphicsDevice.SetVertexBuffer(vertexBuffer);
}
private void DrawPrim()
{
RasterizerState rasterizerState1 = new RasterizerState();
rasterizerState1.CullMode = CullMode.None;
GraphicsDevice.RasterizerState = rasterizerState1;
foreach (EffectPass pass in basicEffect.CurrentTechnique.Passes)
{
pass.Apply();
GraphicsDevice.DrawPrimitives(PrimitiveType.TriangleList, 0, 12);
}
}
}
最終更新：2012年07月22日 01:54
