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最近开始学vertex shader，根据ms提供的帮助文档（Create a Vertex Shader ）写了如下一个程序，可死活出不了锁要求的效果，
一个矩形，
#define STRICT
#include <d3d9.h>
#include <windows.h>
#include <windowsx.h>
#include <mmsystem.h>
#include <stdio.h>
#include <tchar.h>
#include <D3DX9.h>
#include "DXUtil.h"
#include "D3DEnumeration.h"
#include "D3DSettings.h"
#include "D3DApp.h"
#include "D3DFile.h"
#include "D3DUtil.h"
#include <commctrl.h>
//-----------------------------------------------------------------------------
// Global variables
//-----------------------------------------------------------------------------
LPDIRECT3D9 g_pD3D = NULL; // Used to create the D3DDevice
LPDIRECT3DDEVICE9 g_pd3dDevice = NULL; // Our rendering device
LPDIRECT3DVERTEXBUFFER9 g_pVB = NULL; // Buffer to hold vertices
LPDIRECT3DVERTEXSHADER9 m_pVertexShader;
LPD3DXBUFFER pCode; // Buffer with the assembled shader code
LPD3DXBUFFER pErrorMsgs;
// A structure for our custom vertex type
struct CUSTOMVERTEX
{
FLOAT x, y, z;
};
#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ)
//-----------------------------------------------------------------------------
// Name: InitD3D()
// Desc: Initializes Direct3D
//-----------------------------------------------------------------------------
HRESULT InitD3D( HWND hWnd )
{
// Create the D3D object.
if( NULL == ( g_pD3D = Direct3DCreate9( D3D_SDK_VERSION ) ) )
return E_FAIL;
// Set up the structure used to create the D3DDevice
D3DPRESENT_PARAMETERS d3dpp;
ZeroMemory( &d3dpp, sizeof(d3dpp) );
d3dpp.Windowed = TRUE;
d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;
d3dpp.EnableAutoDepthStencil = TRUE;
d3dpp.MultiSampleType = D3DMULTISAMPLE_2_SAMPLES;
d3dpp.AutoDepthStencilFormat = D3DFMT_D16;
// Create the D3DDevice
if( FAILED( g_pD3D->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd,
D3DCREATE_SOFTWARE_VERTEXPROCESSING,
&d3dpp, &g_pd3dDevice ) ) )
{
return E_FAIL;
}
// Device state would normally be set here
return S_OK;
}
HRESULT InitVB()
{
// Initialize three vertices for rendering a triangle
CUSTOMVERTEX vertices[]=
{
// x y z
{ -1.0f, -1.0f, 0.0f },
{ +1.0f, -1.0f, 0.0f },
{ +1.0f, +1.0f, 0.0f },
{ -1.0f, +1.0f, 0.0f },
};
HRESULT hr;
D3DVERTEXELEMENT9 decl[] =
{
{ 0, 0, D3DDECLTYPE_FLOAT3, D3DDECLMETHOD_DEFAULT, D3DDECLUSAGE_POSITION, 0 },
D3DDECL_END()
};
D3DXAssembleShaderFromFile("../geometry/VertexShader.vsh", NULL, NULL, 0,
&pCode, &pErrorMsgs);
hr = g_pd3dDevice->CreateVertexShader( (DWORD*)pCode->GetBufferPointer(),
&m_pVertexShader);
pCode->Release();
if( FAILED( hr = g_pd3dDevice->CreateVertexBuffer( 4*sizeof(CUSTOMVERTEX),
0, D3DFVF_CUSTOMVERTEX,
D3DPOOL_DEFAULT, &g_pVB, NULL ) ) )
{
return E_FAIL;
}
VOID* pVertices;
if( FAILED( g_pVB->Lock( 0, sizeof(vertices), (void**)&pVertices, 0 ) ) )
return E_FAIL;
memcpy( pVertices, vertices, sizeof(vertices) );
g_pVB->Unlock();
return S_OK;
}
//-----------------------------------------------------------------------------
// Name: Cleanup()
// Desc: Releases all previously initialized objects
//-----------------------------------------------------------------------------
VOID Cleanup()
{
if( g_pVB != NULL )
g_pVB->Release();
if( g_pd3dDevice != NULL )
g_pd3dDevice->Release();
if( g_pD3D != NULL )
g_pD3D->Release();
}
//-----------------------------------------------------------------------------
// Name: Render()
// Desc: Draws the scene
//-----------------------------------------------------------------------------
VOID Render()
{
// Clear the backbuffer to a blue color
g_pd3dDevice->Clear( 0, NULL, D3DCLEAR_TARGET, D3DCOLOR_XRGB(0,0,0), 1.0f, 0 );
// Begin the scene
if( SUCCEEDED( g_pd3dDevice->BeginScene() ) )
{
HRESULT hr;
D3DXVECTOR3 vEyePt( 0.0f, 2.0f, 4.9f);
D3DXVECTOR3 vLookatPt(0.0f, 0.0f, 0.0f );
D3DXVECTOR3 vUpVec( 0.0f, 1.0f, 0.0f );
D3DXMATRIXA16 matView;
D3DXMatrixLookAtLH( &matView, &vEyePt, &vLookatPt, &vUpVec );
D3DXMATRIXA16 matProj,mat,mat1;
D3DXMatrixPerspectiveFovLH( &matProj, D3DX_PI/4, 3.0f, 0.1f, 10.0f );
D3DXMatrixMultiply(&mat,&matView,&matProj);
hr = g_pd3dDevice->SetVertexShaderConstantF( 0, (float*)&mat, 4 );
float color[4] = {1.0,1.0,1.0,0};
hr = g_pd3dDevice->SetVertexShaderConstantF( 4, (float*)&color, 1 );
// Declare and define the constant vertex color.
// Turn off specular light contribution because the specular value
// is not written in the vertex shader.
g_pd3dDevice->SetRenderState( D3DRS_SPECULARENABLE, FALSE );
// Render the output.
hr = g_pd3dDevice->SetStreamSource( 0, g_pVB, 0, sizeof(CUSTOMVERTEX) );
hr = g_pd3dDevice->SetVertexShader( m_pVertexShader );
g_pd3dDevice->SetFVF(D3DFVF_CUSTOMVERTEX );
hr = g_pd3dDevice->DrawPrimitive( D3DPT_TRIANGLEFAN, 0, 2 );
// End the scene
g_pd3dDevice->EndScene();
}
// Present the backbuffer contents to the display
g_pd3dDevice-> resent( NULL, NULL, NULL, NULL );
}
//-----------------------------------------------------------------------------
// Name: MsgProc()
// Desc: The window's message handler
//-----------------------------------------------------------------------------
LRESULT WINAPI MsgProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam )
{
switch( msg )
{
case WM_DESTROY:
Cleanup();
PostQuitMessage( 0 );
return 0;
}
return DefWindowProc( hWnd, msg, wParam, lParam );
}
//-----------------------------------------------------------------------------
// Name: WinMain()
// Desc: The application's entry point
//-----------------------------------------------------------------------------
INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR, INT )
{
// Register the window class
WNDCLASSEX wc = { sizeof(WNDCLASSEX), CS_CLASSDC, MsgProc, 0L, 0L,
GetModuleHandle(NULL), NULL, NULL, NULL, NULL,
"D3D Tutorial", NULL };
RegisterClassEx( &wc );
// Create the application's window
HWND hWnd = CreateWindow( "D3D Tutorial", "D3D Tutorial 02: Vertices",
WS_OVERLAPPEDWINDOW, 100, 100, 300, 300,
GetDesktopWindow(), NULL, wc.hInstance, NULL );
// Initialize Direct3D
if( SUCCEEDED( InitD3D( hWnd ) ) )
{
// Create the vertex buffer
if( SUCCEEDED( InitVB() ) )
{
// Show the window
ShowWindow( hWnd, SW_SHOWDEFAULT );
UpdateWindow( hWnd );
// Enter the message loop
MSG msg;
ZeroMemory( &msg, sizeof(msg) );
while( msg.message!=WM_QUIT )
{
if( PeekMessage( &msg, NULL, 0U, 0U, PM_REMOVE ) )
{
TranslateMessage( &msg );
DispatchMessage( &msg );
}
else
Render();
}
}
}
UnregisterClass( "D3D Tutorial", wc.hInstance );
return 0;
}
shader files
vs_1_1 // version instruction
dcl_position v0 // declare position register
m4x4 oPos, v0, c0 // transform vertices by view/projection matrix
mov oD0, c4 // move diffuse color to output color register
[em17] [em17] [em17] |
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发表于 2004-5-11 09:12:00
楼主