第一个顶点找色器程序

开始错误一大堆。。。

都是shader里面的语法错误。。。我擦！

#include "d3dUtility.h"

const DWORD width = 640;
const DWORD height = 480;

//
// Globals
//

IDirect3DDevice9* Device = 0; 

IDirect3DVertexShader9* pShader = 0;
ID3DXConstantTable*     pConstTable = 0;
ID3DXMesh*          teaPot = 0;
D3DXHANDLE              viewMatHandle;
D3DXHANDLE              viewProjHandle;
D3DXHANDLE              ambientMtrlHandle;
D3DXHANDLE              diffuseMtrlHandle;
D3DXHANDLE              directionLightHandle;

D3DXMATRIX              proj;

//
// Framework Functions
//

bool Setup()
{
    // Nothing to setup in this sample.
    HRESULT hr = 0;

    D3DXCreateTeapot(Device, &teaPot, 0);

    ID3DXBuffer* errorBuf;
    ID3DXBuffer* shaderBuf;
    hr = D3DXCompileShaderFromFile("diffuse.txt", 0, 0,
        "Main", "vs_2_0", D3DXSHADER_DEBUG, &shaderBuf, &errorBuf, &pConstTable);
    if (errorBuf)
    {
        ::MessageBox(0, (char*)errorBuf->GetBufferPointer(), 0, 0);
        d3d::Release<ID3DXBuffer*>(errorBuf);
    }

    if (FAILED(hr))
    {
        return false;
    }

    hr = Device->CreateVertexShader((DWORD*)shaderBuf->GetBufferPointer(),
        &pShader);
    if (FAILED(hr))
    {
        return false;
    }

    d3d::Release<ID3DXBuffer*>(shaderBuf);

    pConstTable->SetDefaults(Device);

    viewMatHandle = pConstTable->GetConstantByName(0, "viewMatrix");
    viewProjHandle = pConstTable->GetConstantByName(0, "viewProjMatrix");
    ambientMtrlHandle = pConstTable->GetConstantByName(0, "ambientMtrl");
    diffuseMtrlHandle = pConstTable->GetConstantByName(0, "diffuseMtrl");
    directionLightHandle = pConstTable->GetConstantByName(0, "directionLight");

    D3DXVECTOR4 directionLight(-0.57f, -0.57f, -0.57f, 0.0f);
    pConstTable->SetVector(Device, directionLightHandle, &directionLight);

    D3DXVECTOR4 ambientMtrl(0.0f, 0.0f, 1.0f, 0.0f);
    D3DXVECTOR4 diffuseMtrl(0.0f, 0.0f, 1.0f, 0.0f);
    pConstTable->SetVector(Device, ambientMtrlHandle, &ambientMtrl);
    pConstTable->SetVector(Device, diffuseMtrlHandle, &diffuseMtrl);

    D3DXMatrixPerspectiveFovLH(
        &proj, D3DX_PI * 0.25f, (float)width / (float)height, 1.0f, 1000.0f
        );

    return true;
}

void Cleanup()
{
    // Nothing to cleanup in this sample.
}

bool Display(float timeDelta)
{
    if( Device ) // Only use Device methods if we have a valid device.
    {
        static float angle = (3.0f * D3DX_PI) / 2.0f;
        static float height = 3.0f;

        if (::GetAsyncKeyState(VK_LEFT) & 0x8000f)
        {
            angle -= 0.5f * timeDelta;
        }

        if (::GetAsyncKeyState(VK_RIGHT) & 0x8000f)
        {
            angle += 0.5f * timeDelta;
        }

        if (::GetAsyncKeyState(VK_UP) & 0x8000f)
        {
            height += 5.0f * timeDelta;
        }

        if (::GetAsyncKeyState(VK_DOWN) & 0x8000f)
        {
            height -= 5.0f * timeDelta;
        }

        D3DXVECTOR3 position(cosf(angle) * 7.0f, height, sinf(angle) * 7.0f);
        D3DXVECTOR3 target(0.0f, 0.0f, 0.0f);
        D3DXVECTOR3 up(0.0f, 1.0f, 0.0f);
        D3DXMATRIX v;
        D3DXMatrixLookAtLH(&v, &position, &target, &up);

        pConstTable->SetMatrix(Device, viewMatHandle, &v);

        D3DXMATRIX viewProjMat = v * proj;
        pConstTable->SetMatrix(Device, viewProjHandle, &viewProjMat);

        // Instruct the device to set each pixel on the back buffer black -
        // D3DCLEAR_TARGET: 0x00000000 (black) - and to set each pixel on
        // the depth buffer to a value of 1.0 - D3DCLEAR_ZBUFFER: 1.0f.
        Device->Clear(0, 0, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, 0x00000000, 1.0f, 0);

        Device->BeginScene();
        Device->SetVertexShader(pShader);
        teaPot->DrawSubset(0);
        Device->EndScene();

        // Swap the back and front buffers.
        Device->Present(0, 0, 0, 0);
    }
    return true;
}

//
// WndProc
//
LRESULT CALLBACK d3d::WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
    switch( msg )
    {
    case WM_DESTROY:
        ::PostQuitMessage(0);
        break;
        
    case WM_KEYDOWN:
        if( wParam == VK_ESCAPE )
            ::DestroyWindow(hwnd);
        break;
    }
    return ::DefWindowProc(hwnd, msg, wParam, lParam);
}

//
// WinMain
//
int WINAPI WinMain(HINSTANCE hinstance,
                   HINSTANCE prevInstance, 
                   PSTR cmdLine,
                   int showCmd)
{
    if(!d3d::InitD3D(hinstance,
        640, 480, true, D3DDEVTYPE_HAL, &Device))
    {
        ::MessageBox(0, "InitD3D() - FAILED", 0, 0);
        return 0;
    }
        
    if(!Setup())
    {
        ::MessageBox(0, "Setup() - FAILED", 0, 0);
        return 0;
    }

    d3d::EnterMsgLoop( Display );

    Cleanup();

    Device->Release();

    return 0;
}

 

 

matrix viewMatrix;

matrix viewProjMatrix;

vector ambientMtrl;

vector diffuseMtrl;

vector directionLight;

 

vector diffuseLightIntensify = {0.0f, 0.0f, 1.0f, 1.0f};

vector ambientLightIntensify = {0.0f, 0.0f, 0.2f, 1.0f};

 

struct VS_INPUT

{

vector position : POSITION;

vector normal : NORMAL;

};

 

struct VS_OUTPUT

{

vector position : POSITION;

vector diffuse : COLOR;

};

 

 

VS_OUTPUT Main(VS_INPUT inputData)

{

VS_OUTPUT output = (VS_OUTPUT)0;

output.position = mul(inputData.position, viewProjMatrix);

 

directionLight.w = 0.0f;

inputData.normal.w = 0.0f;

directionLight = mul(directionLight, viewMatrix);

inputData.normal = mul(inputData.normal, viewMatrix);

 

float s = dot(directionLight, inputData.normal);

if (s < 0.0f)

s = 0.0f;

 

output.diffuse = ambientLightIntensify * ambientMtrl + 

s * diffuseLightIntensify * diffuseMtrl;

return output;

}

 

注意：VS_OUTPUT Main(VS_INPUT inputData)中VS_INPUT inputData不要用VS_INPUT input....