在创建光栅化器时，我可以这样设置光栅化器描述:
rasterDesc.AntialiasedLineEnable = false;
rasterDesc.CullMode = D3D11_CULL_BACK;
rasterDesc.DepthBias = 0;
rasterDesc.DepthBiasClamp = 0.0f;
rasterDesc.DepthClipEnable = true;
rasterDesc.FillMode = D3D11_FILL_SOLID;
rasterDesc.FrontCounterClockwise = true;
rasterDesc.MultisampleEnable = false;
rasterDesc.ScissorEnable = false;
rasterDesc.SlopeScaledDepthBias = 0.0f;
这很好。但是当我将
FrontCounterClockwise更改为false时。什么都没有呈现(我想一切都被淘汰了)。我会误解FrontCounterClockwise的目的吗？因为我在期待，所以它将以顺时针方向的面孔作为正面，而不是逆时针方向的面孔。我究竟做错了什么？编辑:这是完整的初始化代码:
bool irrFireDX11::INITIALIZE(int screenWidth, int screenHeight, bool vsync)
{
HRESULT result;
IDXGIFactory* factory;
IDXGIAdapter* adapter;
IDXGIOutput* adapterOutput;
unsigned int numModes, i, numerator, denominator, stringLength;
DXGI_MODE_DESC* displayModeList;
DXGI_ADAPTER_DESC adapterDesc;
int error;
DXGI_SWAP_CHAIN_DESC swapChainDesc;
ID3D11Texture2D* backBufferPtr;
D3D11_TEXTURE2D_DESC depthBufferDesc;
D3D11_DEPTH_STENCIL_DESC depthStencilDesc;
D3D11_DEPTH_STENCIL_VIEW_DESC depthStencilViewDesc;
D3D11_RASTERIZER_DESC rasterDesc;
D3D11_VIEWPORT viewport;
float fieldOfView, screenAspect;
m_vsync_enabled = vsync;
D3D11_DEPTH_STENCIL_DESC depthDisabledStencilDesc;
// Create a DirectX graphics interface factory.
result = CreateDXGIFactory(__uuidof(IDXGIFactory), (void**)&factory);
if(FAILED(result)) return false;
// Use the factory to create an adapter for the primary graphics interface (video card).
result = factory->EnumAdapters(0, &adapter);
if(FAILED(result)) return false;
// Enumerate the primary adapter output (monitor).
result = adapter->EnumOutputs(0, &adapterOutput);
if(FAILED(result)) return false;
// Get the number of modes that fit the DXGI_FORMAT_R8G8B8A8_UNORM display format for the adapter output (monitor).
result = adapterOutput->GetDisplayModeList(DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_ENUM_MODES_INTERLACED, &numModes, NULL);
if(FAILED(result)) return false;
// Create a list to hold all the possible display modes for this monitor/video card combination.
displayModeList = new DXGI_MODE_DESC[numModes];
if(!displayModeList) return false;
// Now fill the display mode list structures.
result = adapterOutput->GetDisplayModeList(DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_ENUM_MODES_INTERLACED, &numModes, displayModeList);
if(FAILED(result)) return false;
// Now go through all the display modes and find the one that matches the screen width and height.
// When a match is found store the numerator and denominator of the refresh rate for that monitor.
for(i=0; i<numModes; i++)
{
if(displayModeList[i].Width == (unsigned int)screenWidth)
{
if(displayModeList[i].Height == (unsigned int)screenHeight)
{
numerator = displayModeList[i].RefreshRate.Numerator;
denominator = displayModeList[i].RefreshRate.Denominator;
}
}
}
// Get the adapter (video card) description.
result = adapter->GetDesc(&adapterDesc);
if(FAILED(result)) return false;
m_videoCardMemory = (int)(adapterDesc.DedicatedVideoMemory / 1024 / 1024);
error = wcstombs_s(&stringLength, m_videoCardDescription, 128, adapterDesc.Description, 128);
if(error != 0) return false;
delete [] displayModeList;
displayModeList = 0;
adapterOutput->Release();
adapterOutput = 0;
adapter->Release();
adapter = 0;
factory->Release();
factory = 0;
// Initialize the swap chain description.
ZeroMemory(&swapChainDesc, sizeof(swapChainDesc));
swapChainDesc.BufferCount = 1;
swapChainDesc.BufferDesc.Width = screenWidth;
swapChainDesc.BufferDesc.Height = screenHeight;
swapChainDesc.BufferDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
if(m_vsync_enabled)
{
swapChainDesc.BufferDesc.RefreshRate.Numerator = numerator;
swapChainDesc.BufferDesc.RefreshRate.Denominator = denominator;
}else{
swapChainDesc.BufferDesc.RefreshRate.Numerator = 0;
swapChainDesc.BufferDesc.RefreshRate.Denominator = 1;
}
swapChainDesc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT;
swapChainDesc.OutputWindow = ifDEVICE->getWindowHandle();
swapChainDesc.SampleDesc.Count = 1;
swapChainDesc.SampleDesc.Quality = 0;
swapChainDesc.Windowed = !ifDEVICE->getFullScreen();
swapChainDesc.BufferDesc.ScanlineOrdering = DXGI_MODE_SCANLINE_ORDER_UNSPECIFIED;
swapChainDesc.BufferDesc.Scaling = DXGI_MODE_SCALING_UNSPECIFIED;
swapChainDesc.SwapEffect = DXGI_SWAP_EFFECT_DISCARD;
swapChainDesc.Flags = 0;
D3D_FEATURE_LEVEL g_featureLevel = D3D_FEATURE_LEVEL_11_0;
D3D_FEATURE_LEVEL featureLevel[] =
{
D3D_FEATURE_LEVEL_11_0,
D3D_FEATURE_LEVEL_10_1,
D3D_FEATURE_LEVEL_10_0,
};
result = D3D11CreateDeviceAndSwapChain(NULL, D3D_DRIVER_TYPE_HARDWARE, NULL, D3D11_CREATE_DEVICE_DEBUG, featureLevel, 3,
D3D11_SDK_VERSION, &swapChainDesc, &m_swapChain, &m_device, &g_featureLevel, &m_deviceContext);
if(FAILED(result)) return false;
result = m_swapChain->GetBuffer(0, __uuidof(ID3D11Texture2D), (LPVOID*)&backBufferPtr);
if(FAILED(result)) return false;
result = m_device->CreateRenderTargetView(backBufferPtr, NULL, &m_renderTargetView);
if(FAILED(result)) return false;
backBufferPtr->Release();
backBufferPtr = 0;
ZeroMemory(&depthBufferDesc, sizeof(depthBufferDesc));
depthBufferDesc.Width = screenWidth;
depthBufferDesc.Height = screenHeight;
depthBufferDesc.MipLevels = 1;
depthBufferDesc.ArraySize = 1;
depthBufferDesc.Format = DXGI_FORMAT_D24_UNORM_S8_UINT;
depthBufferDesc.SampleDesc.Count = 1;
depthBufferDesc.SampleDesc.Quality = 0;
depthBufferDesc.Usage = D3D11_USAGE_DEFAULT;
depthBufferDesc.BindFlags = D3D11_BIND_DEPTH_STENCIL;
depthBufferDesc.CPUAccessFlags = 0;
depthBufferDesc.MiscFlags = 0;
result = m_device->CreateTexture2D(&depthBufferDesc, NULL, &m_depthStencilBuffer);
if(FAILED(result)) return false;
ZeroMemory(&depthStencilDesc, sizeof(depthStencilDesc));
depthStencilDesc.DepthEnable = true;
depthStencilDesc.DepthWriteMask = D3D11_DEPTH_WRITE_MASK_ALL;
depthStencilDesc.DepthFunc = D3D11_COMPARISON_LESS;
depthStencilDesc.StencilEnable = true;
depthStencilDesc.StencilReadMask = 0xFF;
depthStencilDesc.StencilWriteMask = 0xFF;
depthStencilDesc.FrontFace.StencilFailOp = D3D11_STENCIL_OP_KEEP;
depthStencilDesc.FrontFace.StencilDepthFailOp = D3D11_STENCIL_OP_INCR;
depthStencilDesc.FrontFace.StencilPassOp = D3D11_STENCIL_OP_KEEP;
depthStencilDesc.FrontFace.StencilFunc = D3D11_COMPARISON_ALWAYS;
depthStencilDesc.BackFace.StencilFailOp = D3D11_STENCIL_OP_KEEP;
depthStencilDesc.BackFace.StencilDepthFailOp = D3D11_STENCIL_OP_DECR;
depthStencilDesc.BackFace.StencilPassOp = D3D11_STENCIL_OP_KEEP;
depthStencilDesc.BackFace.StencilFunc = D3D11_COMPARISON_ALWAYS;
result = m_device->CreateDepthStencilState(&depthStencilDesc, &m_depthStencilState);
if(FAILED(result)) return false;
m_deviceContext->OMSetDepthStencilState(m_depthStencilState, 1);
ZeroMemory(&depthStencilViewDesc, sizeof(depthStencilViewDesc));
depthStencilViewDesc.Format = DXGI_FORMAT_D24_UNORM_S8_UINT;
depthStencilViewDesc.ViewDimension = D3D11_DSV_DIMENSION_TEXTURE2D;
depthStencilViewDesc.Texture2D.MipSlice = 0;
result = m_device->CreateDepthStencilView(m_depthStencilBuffer, &depthStencilViewDesc, &m_depthStencilView);
if(FAILED(result)) return false;
m_deviceContext->OMSetRenderTargets(1, &m_renderTargetView, m_depthStencilView);
rasterDesc.AntialiasedLineEnable = false;
rasterDesc.CullMode = D3D11_CULL_BACK;
rasterDesc.DepthBias = 0;
rasterDesc.DepthBiasClamp = 0.0f;
rasterDesc.DepthClipEnable = true;
rasterDesc.FillMode = D3D11_FILL_SOLID;
rasterDesc.FrontCounterClockwise = true;
rasterDesc.MultisampleEnable = false;
rasterDesc.ScissorEnable = false;
rasterDesc.SlopeScaledDepthBias = 0.0f;
result = m_device->CreateRasterizerState(&rasterDesc, &m_rasterState);
if(FAILED(result)) return false;
m_deviceContext->RSSetState(m_rasterState);
viewport.Width = (float)screenWidth;
viewport.Height = (float)screenHeight;
viewport.MinDepth = 0.0f;
viewport.MaxDepth = 1.0f;
viewport.TopLeftX = 0.0f;
viewport.TopLeftY = 0.0f;
m_deviceContext->RSSetViewports(1, &viewport);
fieldOfView = (float)D3DX_PI / 4.0f;
screenAspect = (float)screenWidth / (float)screenHeight;
D3DXMatrixPerspectiveFovLH(&m_projectionMatrix, fieldOfView, screenAspect, nearValue, farValue);
D3DXMatrixIdentity(&m_worldMatrix);
D3DXMatrixOrthoLH(&m_orthoMatrix, (float)screenWidth, (float)screenHeight, nearValue, farValue);
// Clear the second depth stencil state before setting the parameters.
ZeroMemory(&depthDisabledStencilDesc, sizeof(depthDisabledStencilDesc));
depthDisabledStencilDesc.DepthEnable = false;
depthDisabledStencilDesc.DepthWriteMask = D3D11_DEPTH_WRITE_MASK_ALL;
depthDisabledStencilDesc.DepthFunc = D3D11_COMPARISON_LESS;
depthDisabledStencilDesc.StencilEnable = true;
depthDisabledStencilDesc.StencilReadMask = 0xFF;
depthDisabledStencilDesc.StencilWriteMask = 0xFF;
depthDisabledStencilDesc.FrontFace.StencilFailOp = D3D11_STENCIL_OP_KEEP;
depthDisabledStencilDesc.FrontFace.StencilDepthFailOp = D3D11_STENCIL_OP_INCR;
depthDisabledStencilDesc.FrontFace.StencilPassOp = D3D11_STENCIL_OP_KEEP;
depthDisabledStencilDesc.FrontFace.StencilFunc = D3D11_COMPARISON_ALWAYS;
depthDisabledStencilDesc.BackFace.StencilFailOp = D3D11_STENCIL_OP_KEEP;
depthDisabledStencilDesc.BackFace.StencilDepthFailOp = D3D11_STENCIL_OP_DECR;
depthDisabledStencilDesc.BackFace.StencilPassOp = D3D11_STENCIL_OP_KEEP;
depthDisabledStencilDesc.BackFace.StencilFunc = D3D11_COMPARISON_ALWAYS;
result = m_device->CreateDepthStencilState(&depthDisabledStencilDesc, &m_depthDisabledStencilState);
if(FAILED(result)) return false;
return true;
}
最佳答案
要澄清的第一件事是Direct3D中的背面不是您后面的面，这里的“背面”一词并不表示普通单词中的方向，它表示顶点顺序，除正面之外的所有面均被视为背面。
关于您的问题，您说以下代码可以正常工作。
rasterDesc.CullMode = D3D11_CULL_BACK;
rasterDesc.FrontCounterClockwise = true;
这里的“罚款”是什么意思？每个人的脸都很好，或者只是其中的一些很好？如果每张脸都很好，那就意味着
因此，由于设置将其视为正面，因此您会看到每个面的渲染效果都很好，然后将FrontCounterClockwise更改为false，如下所示。
rasterDesc.FrontCounterClockwise = false
这就是说，您告诉d3d逆时针定义的面是背面，因此D3D会剔除所有面，因此不会渲染任何内容。
笔记:
在Direct3D 10/11中，正面不仅取决于顶点顺序，而且还取决于FrontCounterClockwise的值。 ，这与仅由顶点顺序确定的Direct3D 9不同。
所以在Direct3D 10/11中，如果
FrontCounterClockwise = true
逆时针
顺序为顺时针
FrontCounterClockwise = Fase
名称“FrontCounterClockwise”可能会使人感到困惑，我们可以将单词分开，如下所示
是真的。
逆时针为假，换句话说，正面为顶点
顺时针是正确的。
关于c++ - DirectX 11正面方向，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/17549145/