XNA 3.1 转换到 XNA4.0 的备忘录

xna3.1与4.0的区别不小，但也不是很大，在转换一些项目时候下面的tip能给些帮助。原文地址是：http://blogs.msdn.com/b/shawnhar/archive/2011/01/04/xna-3-1-to-4-0-cheat-sheet.aspx?utm_source=twitterfeed&utm_medium=twitter

遇到如下问题，该备忘录将解决的问题：

 The name ‘SpriteBlendMode‘ does not exist in the current context
The name ‘SaveStateMode‘ does not exist in the current context

‘Microsoft.Xna.Framework.Graphics.GraphicsDevice‘ does not contain a definition for ‘RenderState‘…

‘Microsoft.Xna.Framework.Graphics.Effect‘ does not contain a definition for ‘Begin‘ …
‘Microsoft.Xna.Framework.Graphics.Effect‘ does not contain a definition for ‘End‘..
‘Microsoft.Xna.Framework.Graphics.Effect‘ does not contain a definition for ‘CommitChanges‘ …
‘Microsoft.Xna.Framework.Graphics.EffectPass‘ does not contain a definition for ‘Begin‘ …
‘Microsoft.Xna.Framework.Graphics.EffectPass‘ does not contain a definition for ‘End‘ ….
No overload for method ‘Clone‘ takes 1 arguments

The name ‘ShaderProfile‘ does not exist in the current context
‘Microsoft.Xna.Framework.GameTime‘ does not contain a definition for ‘TotalRealTime‘ …
‘Microsoft.Xna.Framework.Color‘ does not contain a definition for ‘TransparentBlack‘ …

The type or namespace name ‘ResolveTexture2D‘ could not be found …
‘Microsoft.Xna.Framework.Graphics.GraphicsDevice‘ does not contain a definition for ‘ResolveBackBuffer‘…
The type or namespace name ‘DepthStencilBuffer‘ could not be found …

‘Microsoft.Xna.Framework.Graphics.RenderTarget2D‘ does not contain a constructor that takes 5 arguments …
‘Microsoft.Xna.Framework.Graphics.RenderTarget2D‘ does not contain a definition for ‘GetTexture‘ …

‘Microsoft.Xna.Framework.Graphics.PresentationParameters‘ does not contain a definition for ‘MultiSampleType‘ …
‘Microsoft.Xna.Framework.Graphics.PresentationParameters‘ does not contain a definition for ‘MultiSampleQuality‘ …

The best overloaded method match for ‘Microsoft.Xna.Framework.Graphics.GraphicsDevice.SetRenderTarget…

‘Microsoft.Xna.Framework.Graphics.GraphicsDevice‘ does not contain a definition for ‘VertexDeclaration‘
‘Microsoft.Xna.Framework.Graphics.GraphicsDevice‘ does not contain a definition for ‘Vertices‘

‘Microsoft.Xna.Framework.Graphics.VertexPositionTexture‘ does not contain a definition for ‘SizeInBytes‘
‘Microsoft.Xna.Framework.Graphics.VertexPositionTexture‘ does not contain a definition for ‘VertexElements‘

‘Microsoft.Xna.Framework.Graphics.ModelMesh‘ does not contain a definition for ‘IndexBuffer‘
‘Microsoft.Xna.Framework.Graphics.ModelMesh‘ does not contain a definition for ‘VertexBuffer‘

‘Microsoft.Xna.Framework.Graphics.ModelMeshPart‘ does not contain a definition for ‘BaseVertex‘
‘Microsoft.Xna.Framework.Graphics.ModelMeshPart‘ does not contain a definition for ‘StreamOffset‘
‘Microsoft.Xna.Framework.Graphics.ModelMeshPart‘ does not contain a definition for ‘VertexStride‘

‘Microsoft.Xna.Framework.Storage.StorageContainer‘ does not contain a definition for ‘TitleLocation‘
‘Microsoft.Xna.Framework.Storage.StorageContainer‘ does not contain a definition for ‘Path‘
‘Microsoft.Xna.Framework.Storage.StorageDevice‘ does not contain a definition for ‘OpenContainer‘
‘Microsoft.Xna.Framework.GamerServices.Guide‘ does not contain a definition for ‘BeginShowStorageDeviceSelector‘
‘Microsoft.Xna.Framework.GamerServices.Guide‘ does not contain a definition for ‘EndShowStorageDeviceSelector‘

syntax error: unexpected token ‘VertexShader‘
syntax error: unexpected token ‘PixelShader‘
error X3539: ps_1_x is no longer supported

PS：其他问题，如xna模型画出边界，看起来透明或者丢失顶点以及看起来不对劲。

----------------------------------------------------------------------------------------

XNA 3.1 转为 XNA4.0 的例子：

SpriteBlendMode， SaveStateMode

// XNA 3.1

sprite.Begin(SpriteBlendMode.AlphaBlend, SpriteSortMode.Deferred, SaveStateMode.SaveState);

// XNA 4.0

sprite.Begin(SpriteSortMode.Deferred, BlendState.AlphaBlend);



// XNA 3.1

// 通过深度排列场景对象 

spriteBatch.Begin(SpriteBlendMode.AlphaBlend, SpriteSortMode.BackToFront, SaveStateMode.None);

// XNA 4.0

// 通过深度排列场景对象

spriteBatch.Begin(SpriteSortMode.BackToFront, BlendState.AlphaBlend);



// XNA 3.1

sprite.Begin(SpriteBlendMode.None, SpriteSortMode.Immediate, SaveStateMode.SaveState);

// XNA 4.0

sprite.Begin(SpriteSortMode.Immediate, BlendState.Opaque);



// XNA 3.1

// 画背景图

spriteBatch.Begin(SpriteBlendMode.None);

Viewport viewport = GraphicsDevice.Viewport;

spriteBatch.Draw(background, new Rectangle(0, 0, viewport.Width, viewport.Height), Color.White);

spriteBatch.End();

// XNA 4.0

// 画背景图

spriteBatch.Begin(0, BlendState.Opaque);

spriteBatch.Draw(background, GraphicsDevice.Viewport.Bounds, Color.White);

spriteBatch.End();

 

RenderState

// XNA 3.1

// 启用alpha混合和深度写 

GraphicsDevice.RenderState.AlphaBlendEnable = true;

GraphicsDevice.RenderState.SourceBlend = Blend.SourceAlpha;

GraphicsDevice.RenderState.DestinationBlend = Blend.InverseSourceAlpha;

GraphicsDevice.RenderState.SeparateAlphaBlendEnabled = true;

GraphicsDevice.RenderState.AlphaBlendOperation = BlendFunction.Add;

GraphicsDevice.RenderState.AlphaSourceBlend = Blend.One;

GraphicsDevice.RenderState.AlphaDestinationBlend = Blend.One;

GraphicsDevice.RenderState.DepthBufferWriteEnable = false;

// XNA 4.0

// 启用alpha混合和深度写

GraphicsDevice.BlendState = BlendState.AlphaBlend;

GraphicsDevice.DepthStencilState = DepthStencilState.DepthRead;



// XNA 3.1

// 重置混合和深度写 

GraphicsDevice.RenderState.AlphaBlendEnable = false;

GraphicsDevice.RenderState.SeparateAlphaBlendEnabled = false;

GraphicsDevice.RenderState.DepthBufferWriteEnable = true;

// XNA 4.0

// 重置混合和深度写

GraphicsDevice.BlendState = BlendState.Additive;

GraphicsDevice.DepthStencilState = DepthStencilState.Default;



// XNA 3.1

// 启用深度缓冲

GraphicsDevice.RenderState.DepthBufferEnable = true;

// XNA 4.0

// 启用深度缓冲

GraphicsDevice.DepthStencilState = DepthStencilState.Default;



// XNA 3.1

// 禁用深度缓冲

GraphicsDevice.RenderState.DepthBufferWriteEnable = false;

GraphicsDevice.RenderState.DepthBufferEnable = false;

// XNA 4.0

// 禁用深度缓冲

GraphicsDevice.DepthStencilState = DepthStencilState.None;



// XNA 3.1

// 累加混合(zero on alpha)

GraphicsDevice.RenderState.DepthBufferWriteEnable = false;

GraphicsDevice.RenderState.AlphaBlendEnable = true;

GraphicsDevice.RenderState.SourceBlend = Blend.One;

GraphicsDevice.RenderState.DestinationBlend = Blend.One;

// XNA 4.0

// 累加混合(zero on alpha)

GraphicsDevice.DepthStencilState = DepthStencilState.DepthRead;

GraphicsDevice.BlendState = BlendState.AlphaBlend;



// XNA 3.1

// 恢复混合模式 

GraphicsDevice.RenderState.DepthBufferWriteEnable = true;

GraphicsDevice.RenderState.AlphaBlendEnable = false;

GraphicsDevice.RenderState.SeparateAlphaBlendEnabled = false;

// XNA 4.0

// 恢复混合模式

GraphicsDevice.BlendState = BlendState.Opaque;

GraphicsDevice.DepthStencilState = DepthStencilState.Default;



// XNA 3.1

// 设置alpha混合，无深度测试和深度写

GraphicsDevice.RenderState.DepthBufferEnable = false;

GraphicsDevice.RenderState.DepthBufferWriteEnable = false;

GraphicsDevice.RenderState.AlphaBlendEnable = true;

GraphicsDevice.RenderState.SourceBlend = Blend.SourceAlpha;

GraphicsDevice.RenderState.DestinationBlend = Blend.InverseSourceAlpha;

// XNA 4.0

// 设置alpha混合，无深度测试和深度写

GraphicsDevice.DepthStencilState = DepthStencilState.None;

GraphicsDevice.BlendState = BlendState.AlphaBlend;



// XNA 3.1

// 绘制3D模型时设置合适渲染模式

GraphicsDevice.RenderState.AlphaBlendEnable = false;

GraphicsDevice.RenderState.AlphaTestEnable = false;

GraphicsDevice.RenderState.DepthBufferEnable = true;

// XNA 4.0

// 绘制3D模型时设置合适渲染模式

GraphicsDevice.BlendState = BlendState.Opaque;

GraphicsDevice.DepthStencilState = DepthStencilState.Default;



// XNA 3.1

// 加性混合

GraphicsDevice.RenderState.AlphaBlendEnable = true;

GraphicsDevice.RenderState.SourceBlend = Blend.One;

GraphicsDevice.RenderState.DestinationBlend = Blend.One;

// XNA 4.0

// 加性混合

GraphicsDevice.BlendState = BlendState.Additive;



// XNA 3.1

// 设置加性混合

GraphicsDevice.RenderState.DestinationBlend = Blend.One;

// XNA 4.0

// 设置加性混合

GraphicsDevice.BlendState = BlendState.Additive;



// XNA 3.1

// 设置alpha混合

GraphicsDevice.RenderState.DestinationBlend = Blend.InverseSourceAlpha;

// XNA 4.0

// 设置alpha混合

GraphicsDevice.BlendState = BlendState.AlphaBlend;



// XNA 3.1

GraphicsDevice.RenderState.CullMode = CullMode.CullCounterClockwiseFace;

// XNA 4.0

 GraphicsDevice.RasterizerState = RasterizerState.CullCounterClockwise;



// XNA 3.1

// 设置渲染状态

GraphicsDevice.RenderState.DepthBufferEnable = false;

GraphicsDevice.RenderState.DepthBufferWriteEnable = false;

GraphicsDevice.RenderState.AlphaBlendEnable = true;

GraphicsDevice.RenderState.SourceBlend = Blend.One;

GraphicsDevice.RenderState.DestinationBlend = Blend.One;

GraphicsDevice.RenderState.SeparateAlphaBlendEnabled = true;

GraphicsDevice.RenderState.AlphaBlendOperation = BlendFunction.Add;

GraphicsDevice.RenderState.AlphaDestinationBlend = Blend.Zero;

GraphicsDevice.RenderState.AlphaSourceBlend = Blend.Zero;

 

      // drawing code here..

 

// 恢复状态

GraphicsDevice.RenderState.DepthBufferEnable = true;

GraphicsDevice.RenderState.DepthBufferWriteEnable = true;

GraphicsDevice.RenderState.AlphaBlendEnable = false;

GraphicsDevice.RenderState.SeparateAlphaBlendEnabled = false;

// XNA 4.0

//存储状态

DepthStencilState ds = GraphicsDevice.DepthStencilState;

BlendState bs = GraphicsDevice.BlendState;

 

//设置渲染状态

GraphicsDevice.DepthStencilState = DepthStencilState.DepthRead;

GraphicsDevice.BlendState = BlendState.AlphaBlend;

 

       // drawing code here..

 

// 恢复状态

GraphicsDevice.DepthStencilState = ds;

GraphicsDevice.BlendState = bs;

 

Effect, EffectPass, Begin(), End(), CommitChanges(), Clone()

 

// 应用效果 XNA 3.1

blurEffect.CommitChanges();

blurEffect.Begin(SaveStateMode.SaveState);

blurEffect.CurrentTechnique.Passes[0].Begin();

GraphicsDevice.DrawPrimitives(PrimitiveType.TriangleList, 0, 2);

blurEffect.CurrentTechnique.Passes[0].End();

blurEffect.End();

// 应用效果 XNA 4.0

blurEffect.CurrentTechnique.Passes[0].Apply();

GraphicsDevice.DrawPrimitives(PrimitiveType.TriangleList, 0, 2);



// XNA 3.1

// 提交效果改变

effect.CommitChanges();

// XNA 4.0

//  当任何效果属性改变需要调用EffectPass.Apply()

// 否则就删除它

// XNA 3.1

// 开始一个效果

effect.Begin(SaveStateMode.SaveState);

effect.CurrentTechnique.Passes[0].Begin();

// XNA 4.0

// 开始一个效果

effect.CurrentTechnique.Passes[0].Apply();



// XNA 3.1

// 结束一个效果

effect.CurrentTechnique.Passes[0].End();

effect.End();

// XNA 4.0

// 如果不需要可直接删除

// XNA 3.1

// 产生一个效果的克隆体

Effect newEffect = replacementEffect.Clone(replacementEffect.GraphicsDevice);

// XNA 4.0

// 产生一个效果的克隆体

Effect newEffect = replacementEffect.Clone();



// XNA 3.1

// 启用效果中的tech

postprocessEffect.CurrentTechnique = postprocessEffect.Techniques[effectTechniqueName];     

 

// 用预处理效果画一个全屏的精灵.

spriteBatch.Begin(SpriteBlendMode.None,SpriteSortMode.Immediate, SaveStateMode.None);

 

postprocessEffect.Begin();

postprocessEffect.CurrentTechnique.Passes[0].Begin();

 

spriteBatch.Draw(sceneRenderTarget.GetTexture(), Vector2.Zero, Color.White);

spriteBatch.End();

 

postprocessEffect.CurrentTechnique.Passes[0].End();

postprocessEffect.End();

// XNA 4.0

// 启用效果中的tech

postprocessEffect.CurrentTechnique = postprocessEffect.Techniques[effectTechniqueName];

 

// 用预处理效果画一个全屏的精灵. 

spriteBatch.Begin(0, BlendState.Opaque, null, null, null, postprocessEffect);

spriteBatch.Draw(sceneRenderTarget, Vector2.Zero, Color.White);

spriteBatch.End();

 

ShaderProfile, TotalRealTime, TransparentBlack

// XNA 3.1

graphics.MinimumPixelShaderProfile = ShaderProfile.PS_3_0; //any PS number...

graphics.MinimumVertexShaderProfile = ShaderProfile.VS_3_0;//any VS number...

// XNA 4.0

// 不再需要该语句

// XNA 3.1

float myTime = (float)gameTime.TotalRealTime.TotalSeconds * 0.2f;

// XNA 4.0

float myTime = (float)gameTime.TotalGameTime.TotalSeconds * 0.2f;



// XNA 3.1

GraphicsDevice.Clear(Color.TransparentBlack);

// XNA 4.0

GraphicsDevice.Clear(Color.Transparent);

 

ResolveTexture2D, ResolveBackBuffer, RenderTarget2D, GetTexture, DepthStencilBuffer, PresentationParameters, MultiSampleType, MultiSampleQuality, SetRenderTarget

// XNA 3.1

ResolveTexture2D sceneMap;

// XNA 4.0

RenderTarget2D sceneMap;



// XNA 3.1

// 查询主缓冲的分辨率和格式.

PresentationParameters pp = GraphicsDevice.PresentationParameters;

 

// 从缓冲读取一个材质数据.

sceneMap = new ResolveTexture2D(GraphicsDevice, pp.BackBufferWidth, pp.BackBufferHeight, 1, pp.BackBufferFormat);

// XNA 4.0

// 查询主缓冲的分辨率和格式.

PresentationParameters pp = GraphicsDevice.PresentationParameters;

 

// 从缓冲读取一个材质数据.

sceneMap = new RenderTarget2D(GraphicsDevice, pp.BackBufferWidth, pp.BackBufferHeight, false, pp.BackBufferFormat,

                                pp.DepthStencilFormat);

//or 

 

sceneMap = new RenderTarget2D(GraphicsDevice, pp.BackBufferWidth, pp.BackBufferHeight, false, pp.BackBufferFormat,

                                pp.DepthStencilFormat, pp.MultiSampleCount, RenderTargetUsage.DiscardContents);



// XNA 3.1

GraphicsDevice.ResolveBackBuffer(sceneMap);

// XNA 4.0

GraphicsDevice.SetRenderTarget(sceneMap);



// XNA 3.1

int width = GraphicsDevice.Viewport.Width;

int height = GraphicsDevice.Viewport.Height;

 

// 创建渲染对象

myRenderTarget = new RenderTarget2D(GraphicsDevice, width, height, 1, SurfaceFormat.Color);

// XNA 4.0

int width = GraphicsDevice.Viewport.Width;

int height = GraphicsDevice.Viewport.Height;

 

// 创建渲染对象

myRenderTarget = new RenderTarget2D(GraphicsDevice, width, height, true, SurfaceFormat.Color, DepthFormat.Depth24);



// XNA 3.1

PresentationParameters pp = GraphicsDevice.PresentationParameters;

 

// 创建自动以渲染对象

sceneRenderTarget = new RenderTarget2D(GraphicsDevice, pp.BackBufferWidth, pp.BackBufferHeight, 1,

                                   pp.BackBufferFormat, pp.MultiSampleType, pp.MultiSampleQuality);

// XNA 4.0

PresentationParameters pp = GraphicsDevice.PresentationParameters;

 

// 创建自动以渲染对象

sceneRenderTarget = new RenderTarget2D(GraphicsDevice, pp.BackBufferWidth, pp.BackBufferHeight, false,

                                   pp.BackBufferFormat, pp.DepthStencilFormat, pp.MultiSampleCount,

                                   RenderTargetUsage.DiscardContents);



// XNA 3.1

PresentationParameters pp = GraphicsDevice.PresentationParameters;

 

// 配置一个深度缓冲

drawBuffer = new RenderTarget2D(GraphicsDevice, pp.BackBufferWidth, pp.BackBufferHeight, 1,

                                SurfaceFormat.Color, pp.MultiSampleType, pp.MultiSampleQuality);

 

drawDepthBuffer = new DepthStencilBuffer(GraphicsDevice, pp.AutoDepthStencilFormat,

                                            pp.MultiSampleType, pp.MultiSampleQuality);

// XNA 4.0

PresentationParameters pp = GraphicsDevice.PresentationParameters;

 

// 配置一个深度缓冲

drawBuffer = new RenderTarget2D(GraphicsDevice, pp.BackBufferWidth, pp.BackBufferHeight, true,

                                SurfaceFormat.Color,DepthFormat.Depth24Stencil8,

                                pp.MultiSampleCount, RenderTargetUsage.DiscardContents);

//NOTE:  DepthStencilBuffer 类不再存在

// XNA 3.1

spriteBatch.Draw(myRenderTarget.GetTexture(), Vector2.Zero, Color.White);

// XNA 4.0

spriteBatch.Draw(myRenderTarget, Vector2.Zero, Color.White); // NOTE: ".GetTexure()"  不再需要

// XNA 3.1

Texture2D myTexture = myRenderTarget.GetTexture();

// XNA 4.0

Texture2D myTexture = myRenderTarget; // NOTE: ".GetTexure()"  No longer needed



// XNA 3.1

GraphicsDevice.SetRenderTarget(0, myRenderTarget);

// XNA 4.0

GraphicsDevice.SetRenderTarget(myRenderTarget);



// XNA 3.1

// 设置两个渲染目标

GraphicsDevice.SetRenderTarget(0, colorRT);

GraphicsDevice.SetRenderTarget(1, depthRT);

// XNA 4.0

// 设置两个渲染目标

GraphicsDevice.SetRenderTargets(colorRT, depthRT);



// XNA 3.1

GraphicsDevice.SetRenderTarget(0, null);

// XNA 4.0

GraphicsDevice.SetRenderTarget(null);



// XNA 3.1

// 将深度缓冲解析为深度图

GraphicsDevice.ResolveBackBuffer(depthMap);

 

// 绘制场景图, 用深度图模糊它

GraphicsDevice.Textures[1] = depthMap;

Viewport viewport = GraphicsDevice.Viewport;

dofEffect.CurrentTechnique = depthBlurTechnique;

DrawFullscreenQuad(sceneMap, viewport.Width, viewport.Height, dofEffect);

// XNA 4.0

// 将深度缓冲解析为深度图

GraphicsDevice.SetRenderTarget(null);

 

// 绘制场景图, 用深度图模糊它

GraphicsDevice.Textures[1] = depthMap;

GraphicsDevice.SamplerStates[1] = SamplerState.PointClamp;

Viewport viewport = GraphicsDevice.Viewport;

dofEffect.CurrentTechnique = depthBlurTechnique;

DrawFullscreenQuad(sceneMap, viewport.Width, viewport.Height, dofEffect);



// XNA 3.1

ResolveTexture2D resolveTarget;

RenderTarget2D renderTarget1;

RenderTarget2D renderTarget2;

 

// 查找主缓冲的分辨率和格式.

PresentationParameters pp = GraphicsDevice.PresentationParameters;

 

int width = pp.BackBufferWidth;

int height = pp.BackBufferHeight;

SurfaceFormat format = pp.BackBufferFormat;

 

// 创建一个材质读取缓冲中的内容.

resolveTarget = new ResolveTexture2D(GraphicsDevice, width, height, 1, format);

 

// Create two rendertargets half size for the bloom processing.

width /= 2;

height /= 2;

 

renderTarget1 = new RenderTarget2D(GraphicsDevice, width, height, 1,format);

renderTarget2 = new RenderTarget2D(GraphicsDevice, width, height, 1,format);

 

// ... In the Draw Method...

 GraphicsDevice.ResolveBackBuffer(resolveTarget);

 // ...apply effect and draw pass 1...

// XNA 4.0

RenderTarget2D sceneRenderTarget;

RenderTarget2D renderTarget1;

RenderTarget2D renderTarget2;

 

// 查找主缓冲的分辨率和格式. .

PresentationParameters pp = GraphicsDevice.PresentationParameters;

 

int width = pp.BackBufferWidth;

int height = pp.BackBufferHeight;

SurfaceFormat format = pp.BackBufferFormat;

 

// Create a texture for rendering the main scene, prior to applying bloom.

sceneRenderTarget = new RenderTarget2D(GraphicsDevice, width, height, false,

                                       format, pp.DepthStencilFormat, pp.MultiSampleCount,

                                       RenderTargetUsage.DiscardContents);

 

// Create two rendertargets half size for the bloom processing.

width /= 2;

height /= 2;

 

renderTarget1 = new RenderTarget2D(GraphicsDevice, width, height, false, format, DepthFormat.None);

renderTarget2 = new RenderTarget2D(GraphicsDevice, width, height, false, format, DepthFormat.None);

 

// ...In the Draw Method...

GraphicsDevice.SetRenderTarget(sceneRenderTarget);

GraphicsDevice.SamplerStates[1] = SamplerState.LinearClamp;

// ...apply effect and draw pass 1....

 

VertexDeclaration, Vertices, VertexElements, SizeInBytes

// XNA 3.1

// Vertex declaration for rendering our 3D model.

 GraphicsDevice.VertexDeclaration = new VertexDeclaration(VertexPositionTexture.VertexElements);

// XNA 4.0

// Delete it. No longer needed.



// XNA 3.1

// set vertex buffer and declaration

GraphicsDevice.VertexDeclaration = vertexDeclaration;

GraphicsDevice.Vertices[0].SetSource(vertexBuffer, 0, VertexPositionTexture.SizeInBytes);

// XNA 4.0

// set vertex buffer and declaration

GraphicsDevice.SetVertexBuffer(vertexBuffer);



// XNA 3.1

// create vertex declaration

vertexDeclaration = new VertexDeclaration(GraphicsDevice, VertexPositionTexture.VertexElements);

// XNA 4.0

// create vertex declaration

vertexDeclaration = new VertexDeclaration(VertexPositionTexture.VertexDeclaration.GetVertexElements());



// XNA 3.1

// reset vertex buffer declaration

GraphicsDevice.VertexDeclaration = null;

GraphicsDevice.Vertices[0].SetSource(null, 0, 0);

// XNA 4.0

// reset vertex buffer declaration

GraphicsDevice.SetVertexBuffer(null);



// XNA 3.1

// the vertices array

VertexPositionNormalTexture[] vertices = new VertexPositionNormalTexture[100];

 

 // set new particles to vertex buffer

vertexBuffer.SetData<VertexPositionNormalTexture>(VertexPositionNormalTexture.SizeInBytes * vertexCount,

                    vertices,vertexCount,count,VertexPositionNormalTexture.SizeInBytes);

// XNA 4.0

// the vertices array

VertexPositionNormalTexture[] vertices = new VertexPositionNormalTexture[100];

 

// set new particles to vertex buffer

vertexBuffer.SetData<VertexPositionNormalTexture>(vertices);

VertexBuffer, StreamOffset, VertexStride, IndexBuffer, BaseVertex

// XNA 3.1

// for each mesh part

foreach (ModelMeshPart meshPart in mesh.MeshParts)

{

    // if primitives to render

    if (meshPart.PrimitiveCount > 0)

    {

        // setup vertices and indices

        GraphicsDevice.VertexDeclaration = meshPart.VertexDeclaration;

        GraphicsDevice.Vertices[0].SetSource(mesh.VertexBuffer, meshPart.StreamOffset, meshPart.VertexStride);

        GraphicsDevice.Indices = mesh.IndexBuffer;

        ...

// XNA 4.0

GraphicsDevice.SamplerStates[0] = SamplerState.LinearWrap; // may be needed in some cases...

 

// for each mesh part

foreach (ModelMeshPart meshPart in mesh.MeshParts)

{

    // if primitives to render

    if (meshPart.PrimitiveCount > 0)

    {

        // setup vertices and indices

        GraphicsDevice.SetVertexBuffer(meshPart.VertexBuffer);

        GraphicsDevice.Indices = meshPart.IndexBuffer;

        ...



// XNA 3.1

// draw primitives

GraphicsDevice.DrawIndexedPrimitives(PrimitiveType.TriangleList,

    meshPart.BaseVertex, 0, meshPart.NumVertices,

    meshPart.StartIndex, meshPart.PrimitiveCount);

// XNA 4.0

// draw primitives

GraphicsDevice.DrawIndexedPrimitives(PrimitiveType.TriangleList,

    meshPart.VertexOffset, 0, meshPart.NumVertices,

    meshPart.StartIndex, meshPart.PrimitiveCount);

 

Points, PointSpriteEnable, PointSizeMax, PointList

// XNA 3.1

 // create the vertex buffer

vertexBuffer = new VertexBuffer(GraphicsDevice, typeof(VertexPositionNormalTexture),

                                250, BufferUsage.WriteOnly | BufferUsage.Points);

// XNA 4.0

// create the vertex buffer

vertexBuffer = new VertexBuffer(GraphicsDevice, typeof(VertexPositionNormalTexture),

                                250, BufferUsage.WriteOnly | BufferUsage.None);



// XNA 3.1

// enable point sprite 3.1

GraphicsDevice.RenderState.PointSpriteEnable = true;

GraphicsDevice.RenderState.PointSizeMax = 128;

// XNA 4.0

// Delete it. No longer available.



// XNA 3.1

// draw the point sprites

GraphicsDevice.DrawPrimitives(PrimitiveType.PointList, vertexPosition, numberVertices);

// XNA 4.0

// draw the point sprites

GraphicsDevice.DrawPrimitives(PrimitiveType.LineList, vertexPosition, numberVertices);

 

OpenContainer, BeginShowStorageDeviceSelector, EndShowStorageDeviceSelector, Path, TitleLocation, FileStream

// XNA 3.1

// open the container

StorageContainer storageContainer = storageDevice.OpenContainer("YourGameName");

// XNA 4.0

//To make life easier simply create a method to replace the storageDevice.OpenContainer... 

 

/// <summary>

/// Synchronously opens storage container

/// </summary>

private static StorageContainer OpenContainer(StorageDevice storageDevice, string saveGameName)

{

    IAsyncResult result = storageDevice.BeginOpenContainer(saveGameName, null, null);

 

    // Wait for the WaitHandle to become signaled.

    result.AsyncWaitHandle.WaitOne();

 

    StorageContainer container = storageDevice.EndOpenContainer(result);

 

    // Close the wait handle.

    result.AsyncWaitHandle.Close();

 

    return container;

}

 

// open the container

StorageContainer storageContainer = OpenContainer(storageDevice, "YourGameName");



// XNA 3.1

// retrieve the storage device

Guide.BeginShowStorageDeviceSelector(GetStorageDeviceResult, retrievalDelegate);

// XNA 4.0

// retrieve the storage device

if (!Guide.IsVisible)

{

    StorageDevice.BeginShowSelector(GetStorageDeviceResult, retrievalDelegate);

}



// XNA 3.1

 // retrieve and store the storage device

 storageDevice = Guide.EndShowStorageDeviceSelector(result);

// XNA 4.0

// retrieve and store the storage device

 storageDevice = StorageDevice.EndShowSelector(result);



// XNA 3.1

// get the level setup files

 string[] filenames = Directory.GetFiles(storageContainer.Path, "LevelSetup*.xml");

// XNA 4.0

// get the level setup files

string[] filenames = storageContainer.GetFileNames("LevelSetup*.xml"");



// XNA 3.1

// save game level data

using (FileStream stream = new FileStream(Path.Combine(storageContainer.Path, levelFilename), FileMode.Create))

{

    new XmlSerializer(typeof(SaveGameLevel)).Serialize(stream, levelData);

}

// XNA 4.0

// save game level data

using (Stream stream = storageContainer.OpenFile(levelFilename, FileMode.Create))

{

    new XmlSerializer(typeof(SaveGameLevel)).Serialize(stream, levelData);

}



// XNA 3.1

// Delete the saved game level data.

using (StorageContainer storageContainer = storageDevice.OpenContainer("saveGameName"))

{

    File.Delete(Path.Combine(storageContainer.Path, saveGameLevel.FileName));

 

    File.Delete(Path.Combine(storageContainer.Path, "SaveGameLevel" +

        Path.GetFileNameWithoutExtension(saveGameLevel.FileName).Substring(8) +".xml"));

}

// XNA 4.0

// Delete the saved game level data. NOTE: using OpenContainer method created in previous example

using (StorageContainer storageContainer = OpenContainer(storageDevice, "saveGameName"))

{

    storageContainer.DeleteFile(saveGameLevel.FileName);

 

    storageContainer.DeleteFile("SaveGameLevel" +

        Path.GetFileNameWithoutExtension(saveGameLevel.FileName).Substring(8) + ".xml");

}



// XNA 3.1

//Load the Next Level...

 

// Find the path of the next level.

string levelPath;

 

// Loop here so we can try again when we can't find a level.

while (true)

{

    // Try to find the next level. They are sequentially numbered txt files.

    levelPath = String.Format("Levels/{0}.txt", ++levelIndex);

    levelPath = Path.Combine(StorageContainer.TitleLocation, "Content/" + levelPath);

    if (File.Exists(levelPath))

        break;

 

    // If there isn't even a level 0, something has gone wrong.

    if (levelIndex == 0)

        throw new Exception("No levels found.");

 

    // Whenever we can't find a level, start over again at 0.

    levelIndex = -1;

}

 

// Unloads the content for the current level before loading the next one.

if (level != null)

    level.Dispose();

 

// Load the level.

level = new Level(Services, levelPath);

// XNA 4.0

// Load the Next Level...

 

// move to the next level

levelIndex = (levelIndex + 1) % numberOfLevels;

 

// Unloads the content for the current level before loading the next one.

if (level != null)

    level.Dispose();

 

// Load the level.

string levelPath = string.Format("Content/Levels/{0}.txt", levelIndex);

using (Stream fileStream = TitleContainer.OpenStream(levelPath))

    level = new Level(Services, fileStream, levelIndex);





// XNA 3.1

//Save the current state of the session, with the given storage device. 

 

// check the parameter

if ((storageDevice == null) || !storageDevice.IsConnected)

{

    return;

}

 

// open the container

using (StorageContainer storageContainer = storageDevice.OpenContainer(Session.SaveGameContainerName))

{

    string filename;

    string descriptionFilename;

 

    // get the filenames

    if (overwriteDescription == null)

    {

        int saveGameIndex = 0;

        string testFilename;

        do

        {

            saveGameIndex++;

            testFilename = Path.Combine(storageContainer.Path, "SaveGame" + saveGameIndex.ToString() + ".xml");

        }

        while (File.Exists(testFilename));

        filename = testFilename;

        descriptionFilename = "SaveGameDescription" + saveGameIndex.ToString() + ".xml";

    }

    else

    {

        filename = Path.Combine(storageContainer.Path, overwriteDescription.FileName);

        descriptionFilename = "SaveGameDescription" +

            Path.GetFileNameWithoutExtension(overwriteDescription.FileName).Substring(8) + ".xml";

    }

 

    using (FileStream stream = new FileStream(filename, FileMode.Create))

    {

        using (XmlWriter xmlWriter = XmlWriter.Create(stream))

        {

            //create and write xml data...

        }

    }

 

   // create the save game description

    SaveGameDescription description = new SaveGameDescription();

    description.FileName = Path.GetFileName(filename);

    description.ChapterName = IsQuestLineComplete ? "Quest Line Complete" : Quest.Name;

    description.Description = DateTime.Now.ToString();

 

    using (FileStream stream = new FileStream(Path.Combine(storageContainer.Path, descriptionFilename), FileMode.Create))

    {

        new XmlSerializer(typeof(SaveGameDescription)).Serialize(stream, description);

    }

}

// XNA 4.0

//Save the current state of the session, with the given storage device. 

 

// check the parameter

if ((storageDevice == null) || !storageDevice.IsConnected)

{

    return;

}

 

// open the container Note: using OpenContainer method from previous examples

using (StorageContainer storageContainer = OpenContainer(storageDevice, Session.SaveGameContainerName))

{

    string filename;

    string descriptionFilename;

    // get the filenames

    if (overwriteDescription == null)

    {

        int saveGameIndex = 0;

        string testFilename;

        do

        {

            saveGameIndex++;

            testFilename = "SaveGame" + saveGameIndex.ToString() + ".xml";

        }

        while (storageContainer.FileExists(testFilename));

        filename = testFilename;

        descriptionFilename = "SaveGameDescription" + saveGameIndex.ToString() + ".xml";

    }

    else

    {

        filename = overwriteDescription.FileName;

        descriptionFilename = "SaveGameDescription" +

            Path.GetFileNameWithoutExtension(overwriteDescription.FileName).Substring(8) + ".xml";

    }

 

    // Note: using Stream instead of FileStream...

    using (Stream stream = storageContainer.OpenFile(filename, FileMode.Create))

    {

        using (XmlWriter xmlWriter = XmlWriter.Create(stream))

        {

            //create and write xml data...

        }

    }

 

    // create the save game description

    SaveGameDescription description = new SaveGameDescription();

    description.FileName = Path.GetFileName(filename);

    description.ChapterName = IsQuestLineComplete ? "Quest Line Complete" : Quest.Name;

    description.Description = DateTime.Now.ToString();

 

    // Note: using Stream instead of FileStream...

    using (Stream stream = storageContainer.OpenFile(descriptionFilename, FileMode.Create))

    {

        new XmlSerializer(typeof(SaveGameDescription)).Serialize(stream, description);

    }

}

VertexShader, PixelShader, ps_1_x

// XNA 3.1

VertexShaderOutput VertexShader(...)

{

    //some code

}

float4 PixelShader(...)

{

   // some code

}

// XNA 4.0

// VertexShader can not be used

VertexShaderOutput  VertexShaderFunction(...)

{

   // some code

}

// PixelShader can not be used

float4 PixelShaderFunction(...)

{

   // some code

}



// XNA 3.1

technique

{

    pass

    {

        VertexShader = compile vs_1_1 VertexShader();

        PixelShader  = compile ps_1_1 PixelShader();

    }

}

// XNA 4.0

technique

{

    pass

    {

        VertexShader = compile vs_2_0 VertexShaderFunction(); //VertexShader can not be used & set vs higher than 1_1

        PixelShader  = compile ps_2_0 PixelShaderFunction(); //PixelShader can not be used & set ps higher than 1_1

    }

}

 

XNA Model drawn inside out, slightly transparent, missing parts or just looks wrong

// Set suitable renderstates for drawing a 3D model

GraphicsDevice.BlendState = BlendState.Opaque;

GraphicsDevice.DepthStencilState = DepthStencilState.Default;

 

// your model draw code starts here...