VCS/XnaTexture2D - Sample is best!

開発環境	Microsoft Visual C# 2010 Express (SP1)
実行環境	Microsoft Windows XP Home Edition (SP3)
プロジェクトの種類	Windows Game (4.0)
プロジェクト名	XnaTexture2D

テクスチャの各種表示方法

1. スプライト(2D)
2. プリミティブ(3D)
3. HLSL

参考

• Planet Earth Texture Maps

Game1.cs

// XnaTexture2D 1.スプライト(2D)
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
 
namespace XnaTexture2D
{
    class Game1 : Game
    {
        GraphicsDeviceManager graphics;
        SpriteBatch sprite;
        Texture2D texture;
 
        public Game1()
        {
            graphics = new GraphicsDeviceManager(this);
            graphics.PreferredBackBufferWidth = 1000;
            graphics.PreferredBackBufferHeight = 500;
            Content.RootDirectory = "Content";
            IsMouseVisible = true;
        }
 
        protected override void LoadContent()
        {
            sprite = new SpriteBatch(GraphicsDevice);
            texture = Content.Load<Texture2D>("earthmap1k");
            base.LoadContent();
        }
 
        protected override void Draw(GameTime gameTime)
        {
            GraphicsDevice.Clear(Color.CornflowerBlue);
            sprite.Begin();
            sprite.Draw(texture, Vector2.Zero, Color.White);
            sprite.End();
            base.Draw(gameTime);
        }
    }
}
 

Game1.cs

// XnaTexture2D 2.プリミティブ(3D)
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
 
namespace XnaTexture2D
{
    class Game1 : Game
    {
        GraphicsDeviceManager graphics;
        VertexBuffer vertexBuffer;
        BasicEffect effect;
        Texture2D texture;
 
        public Game1()
        {
            graphics = new GraphicsDeviceManager(this);
            graphics.PreferredBackBufferWidth = 1280;
            graphics.PreferredBackBufferHeight = 720;
            Content.RootDirectory = "Content";
            IsMouseVisible = true;
        }
 
        protected override void LoadContent()
        {
            texture = Content.Load<Texture2D>("earthmap1k");
            effect = new BasicEffect(GraphicsDevice);
            effect.TextureEnabled = true;
            effect.Texture = texture;
 
            VertexPositionTexture[] vertices = new VertexPositionTexture[4];
            vertices[0] = new VertexPositionTexture(new Vector3(-1, 1, 0), new Vector2(0, 0));
            vertices[1] = new VertexPositionTexture(new Vector3(1, 1, 0), new Vector2(1, 0));
            vertices[2] = new VertexPositionTexture(new Vector3(-1, -1, 0), new Vector2(0, 1));
            vertices[3] = new VertexPositionTexture(new Vector3(1, -1, 0), new Vector2(1, 1));
 
            vertexBuffer = new VertexBuffer(GraphicsDevice,
                typeof(VertexPositionTexture), vertices.Length, BufferUsage.WriteOnly);
            vertexBuffer.SetData(vertices);
            base.LoadContent();
        }
 
        protected override void Draw(GameTime gameTime)
        {
            GraphicsDevice.Clear(Color.CornflowerBlue);
            GraphicsDevice.SamplerStates[0] = SamplerState.LinearClamp;
            GraphicsDevice.SetVertexBuffer(vertexBuffer);
            foreach (EffectPass pass in effect.CurrentTechnique.Passes)
            {
                pass.Apply();
                GraphicsDevice.DrawPrimitives(PrimitiveType.TriangleStrip, 0, 2);
            }
            base.Draw(gameTime);
        }
    }
}
 

Game1.cs

// XnaTexture2D 3.HLSL
using Microsoft.Xna.Framework;
using Microsoft.Xna.Framework.Graphics;
 
namespace XnaTexture2D
{
    class Game1 : Game
    {
        GraphicsDeviceManager graphics;
        VertexBuffer vertexBuffer;
        Effect effect;
        Texture2D texture;
 
        public Game1()
        {
            graphics = new GraphicsDeviceManager(this);
            graphics.PreferredBackBufferWidth = 1280;
            graphics.PreferredBackBufferHeight = 720;
            Content.RootDirectory = "Content";
            IsMouseVisible = true;
        }
 
        protected override void LoadContent()
        {
            texture = Content.Load<Texture2D>("earthmap1k");
            effect = Content.Load<Effect>("Effect1");
            effect.Parameters["WorldMap"].SetValue(texture);
 
            VertexPositionTexture[] vertices = new VertexPositionTexture[4];
            vertices[0] = new VertexPositionTexture(new Vector3(-1, 1, 0), new Vector2(0, 0));
            vertices[1] = new VertexPositionTexture(new Vector3(1, 1, 0), new Vector2(1, 0));
            vertices[2] = new VertexPositionTexture(new Vector3(-1, -1, 0), new Vector2(0, 1));
            vertices[3] = new VertexPositionTexture(new Vector3(1, -1, 0), new Vector2(1, 1));
 
            vertexBuffer = new VertexBuffer(GraphicsDevice,
                typeof(VertexPositionTexture), vertices.Length, BufferUsage.WriteOnly);
            vertexBuffer.SetData(vertices);
            base.LoadContent();
        }
 
        protected override void Draw(GameTime gameTime)
        {
            GraphicsDevice.Clear(Color.CornflowerBlue);
            GraphicsDevice.SamplerStates[0] = SamplerState.LinearClamp;
            GraphicsDevice.SetVertexBuffer(vertexBuffer);
            foreach (EffectPass pass in effect.CurrentTechnique.Passes)
            {
                pass.Apply();
                GraphicsDevice.DrawPrimitives(PrimitiveType.TriangleStrip, 0, 2);
            }
            base.Draw(gameTime);
        }
    }
}
 

Effect1.fx

texture WorldMap;
 
sampler TextureSampler = sampler_state
{
	texture = <WorldMap>;
	minfilter = linear;
	magfilter = linear;
};
 
struct VertexShaderInput
{
	float4 Position : POSITION0;
	float2 TexCoord : TEXCOORD0;
};
 
struct VertexShaderOutput
{
	float4 Position : POSITION0;
	float2 TexCoord : TEXCOORD0;
};
 
VertexShaderOutput VertexShaderFunction(VertexShaderInput input)
{
	VertexShaderOutput output;
	output.Position = input.Position;
	output.TexCoord = input.TexCoord;
	return output;
}
 
float4 PixelShaderFunction(VertexShaderOutput input) : COLOR0
{
	return tex2D(TextureSampler, input.TexCoord);
}
 
technique Technique1
{
	pass Pass1
	{
		VertexShader = compile vs_2_0 VertexShaderFunction();
		PixelShader = compile ps_2_0 PixelShaderFunction();
	}
}