我在 DirectX 11 中显示简单的网格模式时遇到了一些问题。一切都正确加载，没有任何错误或返回，但实际上没有显示任何内容。
在 DrawGridSquare 函数中设置断点表明 SpritePtr 变量中的所有内容都已正确设置，但实际上我仍然没有在屏幕上显示任何内容。
因此，我相当确定我的问题在于我在下面提供的 Render() 或 LoadContent() 函数。
以下是相关来源：
/***
* Load simple shaders and other necessary components
***/
bool AStarDemo::LoadContent(){
ID3DBlob* vsBuffer = 0;
bool compileResult = CompileD3DShader("TextureMap.hlsl", "VS_Main", "vs_4_0", &vsBuffer);
if(compileResult == false){
DXTRACE_MSG("Error compiling vertex shader");
return false;
}
HRESULT d3dResult;
d3dResult = d3dDevice->CreateVertexShader(vsBuffer->GetBufferPointer(),
vsBuffer->GetBufferSize(), 0, &returnColorVS);
if(FAILED(d3dResult)){
if(vsBuffer){
vsBuffer->Release();
}
return false;
}
D3D11_INPUT_ELEMENT_DESC solidColorLayout[] ={
{ "POSITION", 0, DXGI_FORMAT_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(solidColorLayout);
d3dResult = d3dDevice->CreateInputLayout(solidColorLayout, totalLayoutElements,
vsBuffer->GetBufferPointer(), vsBuffer->GetBufferSize(), &inputLayout);
vsBuffer->Release();
if(FAILED(d3dResult)){
return false;
}
ID3DBlob* psBuffer = 0;
compileResult = CompileD3DShader("TextureMap.hlsl", "PS_Main", "ps_4_0", &psBuffer);
if(compileResult == false){
DXTRACE_MSG("Error loading pixel shader!");
return false;
}
d3dResult = d3dDevice->CreatePixelShader(psBuffer->GetBufferPointer(),
psBuffer->GetBufferSize(), 0, &returnColorPS);
psBuffer->Release();
if(FAILED(d3dResult)){
DXTRACE_MSG( "Error creating pixel shader!" );
return false;
}
//*** LOAD DDS FILE ***//
d3dResult = D3DX11CreateShaderResourceViewFromFile(d3dDevice, "tiles.dds", 0, 0, &colorMap, 0);
if(FAILED(d3dResult)){
DXTRACE_MSG( "Error loading textures!" );
return false;
}
D3D11_SAMPLER_DESC colorMapDesc;
ZeroMemory(&colorMapDesc, sizeof(colorMapDesc));
colorMapDesc.AddressU = D3D11_TEXTURE_ADDRESS_WRAP;
colorMapDesc.AddressV = D3D11_TEXTURE_ADDRESS_WRAP;
colorMapDesc.AddressW = D3D11_TEXTURE_ADDRESS_WRAP;
colorMapDesc.ComparisonFunc = D3D11_COMPARISON_NEVER;
colorMapDesc.Filter = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
colorMapDesc.MaxLOD = D3D11_FLOAT32_MAX;
d3dResult = d3dDevice->CreateSamplerState(&colorMapDesc, &colorMapSampler);
if(FAILED(d3dResult)){
DXTRACE_MSG( "Failed to create color map sampler state!" );
return false;
}
ID3D11Resource* colorTex;
colorMap->GetResource(&colorTex);
D3D11_TEXTURE2D_DESC colorTexDesc;
((ID3D11Texture2D*)colorTex)->GetDesc(&colorTexDesc);
colorTex->Release();
float halfWidth = (float)colorTexDesc.Width / 2.0f;
float halfHeight = (float)colorTexDesc.Height / 2.0f;
vertices = new Vertex[6 * TOTAL_NUMBER_GRID_SQUARES];
gridSquares = new GridSquare[TOTAL_NUMBER_GRID_SQUARES];
//for each grid square
for(int i = 0; i < TOTAL_NUMBER_GRID_SQUARES; i++){
//create a grid square object
GridSquare gs;
gs.type = ((i%2) == 0) ? prey : hunter;
gs.BottomRight = Vertex( XMFLOAT3( halfWidth + (halfWidth * (i % GRID_WIDTH)),
halfHeight + (halfHeight * (i / GRID_WIDTH)),
Z_LEVEL),
//XMFLOAT2(1.0f + gs.position.x, 0.0f + gs.position.y));
XMFLOAT2(1.0f, 0.0f));
gs.BottomCorner = Vertex( XMFLOAT3( halfWidth + (halfWidth * (i % GRID_WIDTH)),
-halfHeight + (halfHeight * (i / GRID_WIDTH)),
Z_LEVEL),
//XMFLOAT2(1.0f + gs.position.x, 1.0f + gs.position.y));
XMFLOAT2(1.0f, 1.0f));
gs.BottomLeft = Vertex( XMFLOAT3( -halfWidth + (halfWidth * (i % GRID_WIDTH)),
-halfHeight + (halfHeight * (i / GRID_WIDTH)),
Z_LEVEL),
//XMFLOAT2(0.0f + gs.position.x, 1.0f + gs.position.y));
XMFLOAT2(0.0f, 1.0f));
gs.TopLeft = Vertex( XMFLOAT3( -halfWidth + (halfWidth * (i % GRID_WIDTH)),
-halfHeight + (halfHeight * (i / GRID_WIDTH)),
Z_LEVEL),
//XMFLOAT2(0.0f + gs.position.x, 1.0f + gs.position.y));
XMFLOAT2(0.0f, 1.0f));
gs.TopCorner = Vertex( XMFLOAT3( -halfWidth + (halfWidth * (i % GRID_WIDTH)),
halfHeight + (halfHeight * (i / GRID_WIDTH)),
Z_LEVEL),
//XMFLOAT2(0.0f + gs.position.x, 0.0f + gs.position.y));
XMFLOAT2(0.0f, 0.0f));
gs.TopRight = Vertex( XMFLOAT3( halfWidth + (halfWidth * (i % GRID_WIDTH)),
halfHeight + (halfHeight * (i / GRID_WIDTH)),
Z_LEVEL),
//XMFLOAT2(1.0f + gs.position.x, 0.0f + gs.position.y));
XMFLOAT2(1.0f, 0.0f));
gridSquares[i] = gs;
vertices[6*i] = gs.BottomRight;
vertices[(6*i)+1] = gs.BottomCorner;
vertices[(6*i)+2] = gs.BottomLeft;
vertices[(6*i)+3] = gs.TopLeft;
vertices[(6*i)+4] = gs.TopCorner;
vertices[(6*i)+5] = gs.TopRight;
}
D3D11_BUFFER_DESC vertexDesc;
ZeroMemory(&vertexDesc, sizeof(vertexDesc));
vertexDesc.Usage = D3D11_USAGE_DYNAMIC;
vertexDesc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
vertexDesc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
vertexDesc.ByteWidth = 6 * sizeof(Vertex) * TOTAL_NUMBER_GRID_SQUARES; //num vertices * size of single vertex
d3dResult = d3dDevice->CreateBuffer(&vertexDesc, 0, &vertexBuffer);
if(FAILED(d3dResult)){
return false;
}
return true;
}
void AStarDemo::Render(){
if(d3dContext == 0)
return;
float clearColor[4] = {0.0f, 0.0f, 0.25f, 1.0f};
d3dContext->ClearRenderTargetView(backBuffTarget, clearColor);
unsigned int stride = sizeof(Vertex);
unsigned int offset = 0;
d3dContext->IASetInputLayout(inputLayout);
d3dContext->IASetVertexBuffers(0, 1, &vertexBuffer, &stride, &offset);
d3dContext->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
//actually set the vertex shader
d3dContext->VSSetShader(returnColorVS, 0, 0);
//actually set the pixel shader
d3dContext->PSSetShader(returnColorPS, 0, 0);
//set shader resources & sampler
d3dContext->PSSetShaderResources(0, 1, &colorMap);
d3dContext->PSSetSamplers(0, 1, &colorMapSampler);
//update grid squares
// A* alg steped in built-in Update()
for(int i = 0; i < 1/*TOTAL_NUMBER_GRID_SQUARES*/; i+=6){
//update the squares
DrawGridSquare(i);
}
swapChain->Present(0, 0);
}
任何帮助将不胜感激！