着色器设置

      ComPtr<ID3DBlob> blob;

	// 创建顶点着色器
	HR(CreateShaderFromFile(L"HLSL\\Triangle_VS.cso", L"HLSL\\Triangle_VS.hlsl", "VS", "vs_5_0", blob.ReleaseAndGetAddressOf()));
	HR(m_pd3dDevice->CreateVertexShader(blob->GetBufferPointer(), blob->GetBufferSize(), nullptr, m_pVertexShader.GetAddressOf()));
	// 创建并绑定顶点布局
	HR(m_pd3dDevice->CreateInputLayout(VertexPosColor::inputLayout, ARRAYSIZE(VertexPosColor::inputLayout), blob->GetBufferPointer(), blob->GetBufferSize(), m_pVertexLayout.GetAddressOf()));

	// 创建像素着色器
	HR(CreateShaderFromFile(L"HLSL\\Triangle_PS.cso", L"HLSL\\Triangle_PS.hlsl", "PS", "ps_5_0", blob.ReleaseAndGetAddressOf()));
	HR(m_pd3dDevice->CreatePixelShader(blob->GetBufferPointer(), blob->GetBufferSize(), nullptr, m_pPixelShader.GetAddressOf()));

buffer等数据初始化：

VertexPosColor vertices[] = {
		{XMFLOAT3(0.0f, 0.5f, 0.5f), XMFLOAT4(0.0f, 1.0f, 0.0f, 1.0f)},
	    {XMFLOAT3(0.5f, -0.5f, 0.5f), XMFLOAT4(0.0f, 0.0f, 1.0f, 1.0f)},
	    {XMFLOAT3(-0.5f, -0.5f, 0.5f), XMFLOAT4(1.0f, 0.0f, 0.0f, 1.0f)}
	};
	// 设置顶点缓冲区描述
	D3D11_BUFFER_DESC vbd;
	ZeroMemory(&vbd, sizeof vbd);
	vbd.Usage = D3D11_USAGE_IMMUTABLE;
	vbd.ByteWidth = sizeof vertices;
	vbd.BindFlags = D3D11_BIND_VERTEX_BUFFER;
	vbd.CPUAccessFlags = 0;
	// 新建顶点缓冲区
	D3D11_SUBRESOURCE_DATA InitData;
	ZeroMemory(&InitData, sizeof InitData);
	InitData.pSysMem = vertices;
	HR(m_pd3dDevice->CreateBuffer(&vbd, &InitData, m_pVertexBuffer.GetAddressOf()));

	// 给渲染管线各个阶段绑定好所需资源

	// 输入装配阶段的顶点缓冲区设置
	UINT stride = sizeof(VertexPosColor);// 跨越字节数
	UINT offset = 0;//起始偏移量

	m_pd3dImmediateContext->IASetVertexBuffers(0, 1, m_pVertexBuffer.GetAddressOf(), &stride, &offset);
	// 设置图元类型，设定输入布局
	m_pd3dImmediateContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
	m_pd3dImmediateContext->IASetInputLayout(m_pVertexLayout.Get());
	// 将着色器绑定到渲染管线
	m_pd3dImmediateContext->VSSetShader(m_pVertexShader.Get(), nullptr, 0);
	m_pd3dImmediateContext->PSSetShader(m_pPixelShader.Get(), nullptr, 0);

	// 设置调试对象名
	D3D11SetDebugObjectName(m_pVertexLayout.Get(), "VertexPosColorLayout");
	D3D11SetDebugObjectName(m_pVertexBuffer.Get(), "VertexBuffer");
	D3D11SetDebugObjectName(m_pVertexShader.Get(), "Trangle_VS");
	D3D11SetDebugObjectName(m_pPixelShader.Get(), "Triangle_PS");

绘制

      static float black[4] = { 0.0f, 0.0f, 0.0f, 1.0f };	// RGBA = (0,0,255,255)
	m_pd3dImmediateContext->ClearRenderTargetView(m_pRenderTargetView.Get(), black);
	m_pd3dImmediateContext->ClearDepthStencilView(m_pDepthStencilView.Get(), D3D11_CLEAR_DEPTH | D3D11_CLEAR_STENCIL, 1.0f, 0);

	m_pd3dImmediateContext->Draw(3, 0);

着色器
Triangle.hlsli

// Triangle hlsli

struct VertexIn
{
    float3 pos : POSITION;
    float4 color : COLOR;
};

struct VertexOut
{
    float4 posH : SV_POSITION;
    float4 color : COLOR;
};

Triangle_PS.hlsl

#include "Triangle.hlsli"

// 像素着色器
float4 PS(VertexOut pIn) : SV_Target
{
    return pIn.color;
}

Triangle_VS.hlsl

#include "Triangle.hlsli"

// 顶点着色器
VertexOut VS(VertexIn vIn)
{
    VertexOut vOut;
    vOut.posH = float4(vIn.pos, 1.0f);
    vOut.color = vIn.color; // 这里alpha通道的值默认为1.0
    return vOut;
}

着色器设置