我正在尝试开发一个使用 DirectX (10) 显示在屏幕上的程序。
问题是,它只显示我用来清除后台缓冲区的颜色。
(我为接下来的大量代码道歉)。
这是我的渲染功能:
void DXEngine::renderOneFrame()
{
//First, we clear the back buffer
m_device->ClearRenderTargetView(m_renderTargetView,D3DXCOLOR(0.0f, 0.125f, 0.3f, 1.0f));
//Then, we clear the depth buffer
m_device->ClearDepthStencilView(m_depthStencilView,D3D10_CLEAR_DEPTH,1.0f, 0);
//Update variables
m_worldVariable->SetMatrix((float*)&m_world);
m_viewVariable->SetMatrix((float*)&m_view);
m_projectionVariable->SetMatrix((float*)&m_projection);
//Render the cube
D3D10_TECHNIQUE_DESC techDesc;
m_technique->GetDesc(&techDesc);
for(UINT pass = 0; pass < techDesc.Passes ; pass++){
m_technique->GetPassByIndex(pass)->Apply(0);
m_device->DrawIndexed(36,0,0);
}
m_swapChain->Present(0,0);
}
它与“Samples”文件夹下的 DirectX SDK(2010 年 6 月)中关于 DirectX10 的第 5 篇教程完全相同,只是它被封装在一个对象中。
我的场景初始化如下:
HRESULT DXEngine::initStaticScene()
{
HRESULT hr;
//Vertex buffer creation and initialization
Vertex1Pos1Col vertices [] =
{
{ D3DXVECTOR3( -1.0f, 1.0f, -1.0f ), D3DXVECTOR4( 0.0f, 0.0f, 1.0f, 1.0f ) },
{ D3DXVECTOR3( 1.0f, 1.0f, -1.0f ), D3DXVECTOR4( 0.0f, 1.0f, 0.0f, 1.0f ) },
{ D3DXVECTOR3( 1.0f, 1.0f, 1.0f ), D3DXVECTOR4( 0.0f, 1.0f, 1.0f, 1.0f ) },
{ D3DXVECTOR3( -1.0f, 1.0f, 1.0f ), D3DXVECTOR4( 1.0f, 0.0f, 0.0f, 1.0f ) },
{ D3DXVECTOR3( -1.0f, -1.0f, -1.0f ), D3DXVECTOR4( 1.0f, 0.0f, 1.0f, 1.0f ) },
{ D3DXVECTOR3( 1.0f, -1.0f, -1.0f ), D3DXVECTOR4( 1.0f, 1.0f, 0.0f, 1.0f ) },
{ D3DXVECTOR3( 1.0f, -1.0f, 1.0f ), D3DXVECTOR4( 1.0f, 1.0f, 1.0f, 1.0f ) },
{ D3DXVECTOR3( -1.0f, -1.0f, 1.0f ), D3DXVECTOR4( 0.0f, 0.0f, 0.0f, 1.0f ) },
};
D3D10_BUFFER_DESC desc;
desc.Usage = D3D10_USAGE_DEFAULT;
desc.ByteWidth = sizeof(Vertex1Pos1Col) * 8;
desc.BindFlags = D3D10_BIND_VERTEX_BUFFER;
desc.CPUAccessFlags = 0;
desc.MiscFlags = 0;
D3D10_SUBRESOURCE_DATA data;
data.pSysMem = vertices;
hr = m_device->CreateBuffer(&desc,&data,&m_vertexBuffer);
if(FAILED(hr)){
MessageBox(NULL,TEXT("Vertex buffer creation failed"), TEXT("Error"),MB_OK);
return hr;
}
UINT stride = sizeof(Vertex1Pos1Col);
UINT offset = 0;
m_device->IASetVertexBuffers(0,1,&m_vertexBuffer,&stride,&offset);
//Index buffer creation and initialization
DWORD indices[] =
{
3,1,0,
2,1,3,
0,5,4,
1,5,0,
3,4,7,
0,4,3,
1,6,5,
2,6,1,
2,7,6,
3,7,2,
6,4,5,
7,4,6,
};
desc.Usage = D3D10_USAGE_DEFAULT;
desc.ByteWidth = sizeof(DWORD) * 36;
desc.BindFlags = D3D10_BIND_INDEX_BUFFER;
desc.CPUAccessFlags = 0;
desc.MiscFlags = 0;
data.pSysMem = vertices;
hr = m_device->CreateBuffer(&desc,&data,&m_indexBuffer);
if(FAILED(hr)){
MessageBox(NULL,TEXT("Index buffer creation failed"), TEXT("Error"),MB_OK);
return hr;
}
m_device->IASetIndexBuffer(m_indexBuffer,DXGI_FORMAT_R32_FLOAT,0);
//Set the primitive topology, i.e. how indices should be interpreted (here, as a triangle list)
m_device->IASetPrimitiveTopology(D3D10_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
D3DXMatrixIdentity(&m_world);
D3DXVECTOR3 eye(0.0f, 1.0f, -10.0f);
D3DXVECTOR3 at(0.0f, 1.0f, 0.0f);
D3DXVECTOR3 up(0.0f, 1.0f, 0.0f);
D3DXMatrixLookAtLH(&m_view, &eye, &at, &up);
D3DXMatrixPerspectiveFovLH(&m_projection, (float)D3DX_PI * 0.25f, m_width/(FLOAT)m_height, 0.1f, 100.0f);
return hr;
}
再一次,它与我之前提到的教程完全相同(但已封装)。
当我在我的 IDE 中打开 Tutorial Visual Studio 解决方案时,它可以正常工作并很好地显示场景中描述的内容,但是当我尝试运行此代码的“封装”版本时,除了背景颜色之外什么都没有显示...
注意:我的 Windows 消息泵工作正常,我什至可以按照我想要的方式处理用户输入,一切都很好。我的应用程序正确地执行了我的引擎初始化(我检查了每个返回的错误代码,除了S_OK
代码什么都没有)。
我现在不知道在哪里搜索。我一次又一次地检查了我的代码,它与教程完全相同,我检查了我封装的所有内容是否已正确设置和访问等,但我仍然无法显示除背景颜色之外的任何其他内容。 .
我想知道这里是否有人可以知道可能导致这种情况的原因,或者至少提示在哪里寻找......
编辑:使用的效果文件:
//--------------------------------------------------------------------------------------
// File: Tutorial05.fx
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//--------------------------------------------------------------------------------------
//--------------------------------------------------------------------------------------
// Constant Buffer Variables
//--------------------------------------------------------------------------------------
matrix World;
matrix View;
matrix Projection;
//--------------------------------------------------------------------------------------
struct VS_INPUT
{
float4 Pos : POSITION;
float4 Color : COLOR;
};
struct PS_INPUT
{
float4 Pos : SV_POSITION;
float4 Color : COLOR;
};
//--------------------------------------------------------------------------------------
// Vertex Shader
//--------------------------------------------------------------------------------------
PS_INPUT VS( VS_INPUT input )
{
PS_INPUT output = (PS_INPUT)0;
output.Pos = mul( input.Pos, World );
output.Pos = mul( output.Pos, View );
output.Pos = mul( output.Pos, Projection );
output.Color = input.Color;
return output;
}
//--------------------------------------------------------------------------------------
// Pixel Shader
//--------------------------------------------------------------------------------------
float4 PS( PS_INPUT input) : SV_Target
{
return input.Color;
}
//--------------------------------------------------------------------------------------
technique10 Render
{
pass P0
{
SetVertexShader( CompileShader( vs_4_0, VS() ) );
SetGeometryShader( NULL );
SetPixelShader( CompileShader( ps_4_0, PS() ) );
}
}