Shader

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///////////////Begin Shader Source File/////////////////////

cbuffer cbChangesPerFrame : register( b0 )
{
matrix mvp_;
};

Texture2D colorMap_ : register( t0 );
SamplerState colorSampler_ : register( s0 );

struct VS_Input
{
float4 pos : POSITION;
float2 tex0 : TEXCOORD0;
};

struct PS_Input
{
float4 pos : SV_POSITION;
float2 tex0 : TEXCOORD0;
};

PS_Input VS_Main( VS_Input vertex )
{
PS_Input vsOut = ( PS_Input )0;
vsOut.pos = mul( vertex.pos, mvp_ );
vsOut.tex0 = vertex.tex0;

return vsOut;
}

float4 PS_Main( PS_Input frag ) : SV_TARGET
{
return colorMap_.Sample( colorSampler_, frag.tex0 );
}

////////////////////////End Shader Source File////////////////////

//t0 s0 b0
传入值得方式
d3dContext_->PSSetShaderResources( 0, 1, &colorMap_ );
d3dContext_->PSSetSamplers( 0, 1, &colorMapSampler_ );

d3dContext_->VSSetConstantBuffers( 0, 1, &mvpCB_ );

//////////////编译Shader///////////////////

ID3DBlob* vsBuffer = 0;
//bool comileResult = CompileD3DShader("TextureMap.fx","VS_Main","vs_4_0",&vsBuffer);
if(compileResult == false) return false;
ID3DBlob* errorBuffe = 0;
HRESULT result;

result = D3DX11CompileFromFile("TextureMap.fx",0,0,"VS_Main","vs_4_0",D3DCOMPILE_ENABLE_STRICENESS,0,0,vsBuffer,&errorBuffe,0);
if(FAILED(result)
{
if(errorBuffe != 0) errorBuffe->release();
}

if(errorBuffe != 0) errorBuffe->release();

HRESULT d3dResult;
ID3DVertexShader* vsShader = 0;
d3dResult = d3dDevice_->CreateVertexShader(vsBuffer->GetBufferPointer(),vsBuffer->GetBufferSize(),0,&vsShader);
if(FAILED(d3dResult))
{
if(vsBuffer) vsBuffer->Release();
return false;
}

D3D11_INPUT_ELEMENT_DES vsLayout[]=
{
{"POSITION",0,DCGI_FORMART_R32G32B32_FLOAT,0,0,D3D11_INPUT_PER_VERTEX_DATA,0}.
{"TEXCOORD",0,DXGI_FORMAT_R32G32_FLOAT,0,12,D3D11_INPUT_PER_VERTEX_DATA,0}
};

unsigned int totalLayoutElements = ARRAYSIZE(vsLayout);

ID3D11InputLayout* inputLayout_ = 0;
d3dResutl = d3dDevice_->CreateInputLayout(vsLayout,totalLayoutElements,vsBuffer->GetBufferPointer,vsBuffer->GetBufferSize,&inputLayout_);
vsBuffer_->Release();

//创建ConstantBuffer
D3D11_BUFFER_DESC constDesc;
ZeroMemory(&constDesc，sizeof(constDesc));
constDesc.BindFlag = D3D11_BIND_CONSTANT_BUFFER;
constDesc.ByteWidth = sizeof(XMMATRIX);
constDesc.Usage = D3D11_USAGE_DEFAULT;

ID3D11Buffer* mvpCB_;
d3dResult = d3dDevice_->CreateBuffer(&constDesc,-,&mvpCB_)‘

//更新constBuffer
d3dConetxt_->UpdateSubresource(mvpCB_,0,0,&data,0,0);
d3dContext_->PSSetConstantBuffers(0,1,&mvpCB_);

///////////////////Example Use Const Buffer//////////////////////////////////////

ID3D11Buffer* g_pConstantBuffer11 = NULL;

// Define the constant data used to communicate with shaders.
struct VS_CONSTANT_BUFFER
{
XMFLOAT4X4 mWorldViewProj;
XMFLOAT4 vSomeVectorThatMayBeNeededByASpecificShader;
float fSomeFloatThatMayBeNeededByASpecificShader;
float fTime;
float fSomeFloatThatMayBeNeededByASpecificShader2;
float fSomeFloatThatMayBeNeededByASpecificShader3;
} VS_CONSTANT_BUFFER;

// Supply the vertex shader constant data.
VS_CONSTANT_BUFFER VsConstData;
VsConstData.mWorldViewProj = {...};
VsConstData.vSomeVectorThatMayBeNeededByASpecificShader = XMFLOAT4(1,2,3,4);
VsConstData.fSomeFloatThatMayBeNeededByASpecificShader = 3.0f;
VsConstData.fTime = 1.0f;
VsConstData.fSomeFloatThatMayBeNeededByASpecificShader2 = 2.0f;
VsConstData.fSomeFloatThatMayBeNeededByASpecificShader3 = 4.0f;

// Fill in a buffer description.
D3D11_BUFFER_DESC cbDesc;
cbDesc.ByteWidth = sizeof( VS_CONSTANT_BUFFER );
cbDesc.Usage = D3D11_USAGE_DYNAMIC;
cbDesc.BindFlags = D3D11_BIND_CONSTANT_BUFFER;
cbDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
cbDesc.MiscFlags = 0;
cbDesc.StructureByteStride = 0;

// Fill in the subresource data.
D3D11_SUBRESOURCE_DATA InitData;
InitData.pSysMem = &VsConstData;
InitData.SysMemPitch = 0;
InitData.SysMemSlicePitch = 0;

// Create the buffer.
hr = g_pd3dDevice->CreateBuffer( &cbDesc, &InitData,
&g_pConstantBuffer11 );

if( FAILED( hr ) )
return hr;

// Set the buffer.
g_pd3dContext->VSSetConstantBuffers( 0, 1, &g_pConstantBuffer11 );

This example shows the associated HLSL cbuffer definition.
cbuffer VS_CONSTANT_BUFFER : register(b0)
{
matrix mWorldViewProj;
float4 vSomeVectorThatMayBeNeededByASpecificShader;
float fSomeFloatThatMayBeNeededByASpecificShader;
float fTime;
float fSomeFloatThatMayBeNeededByASpecificShader2;
float fSomeFloatThatMayBeNeededByASpecificShader3;
};

Shader

标签：false   ==   slice   creat   time   mat   ret   erro   ini   

原文地址：http://www.cnblogs.com/zhaohu/p/6995039.html