//-----------------------------------------------------------------------------
// Name: GetNextTechnique
// Desc:
//-----------------------------------------------------------------------------
HRESULT CMyD3DApplication::GetNextTechnique(INT nDir, BOOL bBypassValidate)
{
D3DXEFFECT_DESC effect;
UINT_PTR iTechnique = m_iTechnique;
m_pEffect->GetDesc(&effect);
for(;;)
{
iTechnique += nDir;
if(((INT_PTR) iTechnique) < 0)
iTechnique = effect.Techniques - 1;
if(iTechnique >= effect.Techniques)
iTechnique = 0;
if(nDir && (iTechnique == m_iTechnique))
break;
if(!nDir)
nDir = 1;
m_pEffect->SetTechnique((LPCSTR) iTechnique);
if(bBypassValidate || (iTechnique == effect.Techniques - 1) ||
(m_bDrawCaustics || !m_pEffect->IsParameterUsed("tCAU")) && SUCCEEDED(m_pEffect->Validate()))
{
m_iTechnique = iTechnique;
char szText[256];
sprintf(szText, "Water - Technique %d", m_iTechnique);
SetWindowText(m_hWnd, szText);
return S_OK;
}
}
m_pEffect->SetTechnique((LPCSTR) m_iTechnique);
return E_FAIL;
}
//-----------------------------------------------------------------------------
// Name: Render
// Desc:
//-----------------------------------------------------------------------------
HRESULT CMyD3DApplication::Render()
{
HRESULT hr;
if(FAILED(hr = m_pd3dDevice->BeginScene()))
return hr;
// Draw Environment
FLOAT fAspectRatio = (FLOAT)m_d3dsdBackBuffer.Width / (FLOAT)m_d3dsdBackBuffer.Height;
D3DXMatrixPerspectiveFovRH(&m_matProjection, D3DXToRadian(60.0f), fAspectRatio, 0.1f, 2000.0f);
m_pd3dDevice->SetTransform(D3DTS_PROJECTION, &m_matProjection);
if(m_bDrawEnvironment)
{
D3DXMATRIX mat(m_matView);
mat._41 = mat._42 = mat._43 = 0.0f;
m_pd3dDevice->SetTransform(D3DTS_VIEW, &mat);
m_pd3dDevice->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_SELECTARG1);
m_pd3dDevice->SetRenderState(D3DRS_ZFUNC, D3DCMP_ALWAYS);
m_Environment.Draw();
m_pd3dDevice->SetRenderState(D3DRS_ZFUNC, D3DCMP_LESSEQUAL);
m_pd3dDevice->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_DISABLE);
}
else
{
m_pd3dDevice->Clear(0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, 0x00000000, 1.0f, 0);
}
m_pd3dDevice->SetTransform(D3DTS_VIEW, &m_matView);
// Draw water
if(m_bDrawWater)
{
// Setup matrices
if(m_pEffect->IsParameterUsed("mENV"))
{
D3DXMATRIX matP(m_matPosition);
matP._41 = matP._42 = matP._43 = 0.0f;
D3DXMATRIX mat;
D3DXMatrixScaling(&mat, 1.0f, 1.0f, -1.0f);
D3DXMatrixMultiply(&mat, &matP, &mat);
// matCube
m_pEffect->SetMatrix("mENV", &mat);
}
// Draw water
UINT uPasses;
m_pEffect->Begin(&uPasses, 0);
for(UINT uPass = 0; uPass < uPasses; uPass++)
{
m_pEffect->Pass(uPass);
m_Water.DrawSurface();
}
m_pEffect->End();
}
// Show info
m_pFont->DrawText( 2, 0, D3DCOLOR_ARGB(255,255,255,0), m_strFrameStats );
m_pFont->DrawText( 2, 20, D3DCOLOR_ARGB(255,255,255,0), m_strDeviceStats );
TCHAR szText[100];
wsprintf( szText, _T("Using Technique %d"), m_iTechnique );
m_pFontSmall->DrawText( 2, 40, D3DCOLOR_ARGB(255,255,100,100), szText );
if( m_bShowHelp )
{
m_pFontSmall->DrawText( 2, 60, D3DCOLOR_ARGB(255,100,100,200),
_T("Keyboard controls:") );
m_pFontSmall->DrawText( 20, 80, D3DCOLOR_ARGB(255,100,100,200),
_T("Add Drop\n")
_T("Next Technique\n")
_T("Next Tech. (no validate)\n")
_T("Prev Technique\n")
_T("Prev Tech. (no validate)\n")
_T("Move\nTurn\nPitch\nSlide\n")
_T("Help\nChange device\nExit") );
m_pFontSmall->DrawText( 210, 80, D3DCOLOR_ARGB(255,100,100,200),
_T("D\n")
_T("PageDn\nShift-PageDn\n")
_T("PageUp\nShift-PageUp\n")
_T("W,S\nE,Q\nA,Z\nArrow keys\n")
_T("F1\nF2\nEsc") );
}
else
{
m_pFontSmall->DrawText( 2, 60, D3DCOLOR_ARGB(255,100,100,200),
_T("Press F1 for help") );
}
if(FAILED(hr = m_pd3dDevice->EndScene()))
return hr;
return S_OK;
}
//-----------------------------------------------------------------------------
// Name: FrameMove
// Desc:
//-----------------------------------------------------------------------------
HRESULT CMyD3DApplication::FrameMove()
{
HRESULT hr;
//
// Process keyboard input
//
D3DXVECTOR3 vecT(0.0f, 0.0f, 0.0f);
D3DXVECTOR3 vecR(0.0f, 0.0f, 0.0f);
if(m_bKey[VK_NUMPAD1] || m_bKey[VK_LEFT]) vecT.x -= 1.0f; // Slide Left
if(m_bKey[VK_NUMPAD3] || m_bKey[VK_RIGHT]) vecT.x += 1.0f; // Slide Right
if(m_bKey[VK_DOWN]) vecT.y -= 1.0f; // Slide Down
if(m_bKey[VK_UP]) vecT.y += 1.0f; // Slide Up
if(m_bKey['W']) vecT.z -= 2.0f; // Move Forward
if(m_bKey['S']) vecT.z += 2.0f; // Move Backward
if(m_bKey['A'] || m_bKey[VK_NUMPAD8]) vecR.x -= 1.0f; // Pitch Down
if(m_bKey['Z'] || m_bKey[VK_NUMPAD2]) vecR.x += 1.0f; // Pitch Up
if(m_bKey['E'] || m_bKey[VK_NUMPAD6]) vecR.y -= 1.0f; // Turn Right
if(m_bKey['Q'] || m_bKey[VK_NUMPAD4]) vecR.y += 1.0f; // Turn Left
if(m_bKey[VK_NUMPAD9]) vecR.z -= 2.0f; // Roll CW
if(m_bKey[VK_NUMPAD7]) vecR.z += 2.0f; // Roll CCW
m_vecVelocity = m_vecVelocity * 0.9f + vecT * 0.1f;
m_vecAngularVelocity = m_vecAngularVelocity * 0.9f + vecR * 0.1f;
//
// Update position and view matricies
//
D3DXMATRIX matT, matR;
D3DXQUATERNION qR;
vecT = m_vecVelocity * m_fElapsedTime * m_fSpeed;
vecR = m_vecAngularVelocity * m_fElapsedTime * m_fAngularSpeed;
D3DXMatrixTranslation(&matT, vecT.x, vecT.y, vecT.z);
D3DXMatrixMultiply(&m_matPosition, &matT, &m_matPosition);
D3DXQuaternionRotationYawPitchRoll(&qR, vecR.y, vecR.x, vecR.z);
D3DXMatrixRotationQuaternion(&matR, &qR);
D3DXMatrixMultiply(&m_matPosition, &matR, &m_matPosition);
D3DXMatrixInverse(&m_matView, NULL, &m_matPosition);
//
// Update simulation
//
if(!m_bPause && m_bDrawWater)
{
BOOL bCaustics = m_bDrawCaustics && m_pEffect->IsParameterUsed("tCAU");
D3DXVECTOR3 vecPos(m_matPosition._41, m_matPosition._42, m_matPosition._43);
D3DXVECTOR3 vecLight(0.0f, 1.0f, 0.0f);
m_Water.Update(vecPos, vecLight, bCaustics);
m_fTime += m_fSecsPerFrame;
if(bCaustics)
{
if(SUCCEEDED(m_pRenderToSurface->BeginScene(m_pCausticSurf, NULL)))
{
D3DXMATRIX matProj;
D3DXMATRIX matView;
D3DXMatrixOrthoRH(&matProj, 63.0f, 63.0f, 1.0f, 100.0f);
D3DXMatrixRotationX(&matView, 0.5f * D3DX_PI);
matView._43 = -50.0f;
m_pd3dDevice->SetTransform(D3DTS_PROJECTION, &matProj);
m_pd3dDevice->SetTransform(D3DTS_VIEW, &matView);
m_pd3dDevice->Clear(0, NULL, D3DCLEAR_TARGET, 0xff000000, 0.0f, 0);
m_pd3dDevice->SetRenderState(D3DRS_ZENABLE, FALSE);
m_pd3dDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE);
m_pd3dDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, TRUE);
m_Water.DrawCaustics();
m_pd3dDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, FALSE);
m_pd3dDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_CW);
m_pd3dDevice->SetRenderState(D3DRS_ZENABLE, TRUE);
m_pRenderToSurface->EndScene();
}
else
{
m_bDrawCaustics = FALSE;
m_pEffect->SetTexture("tCAU", NULL);
if(FAILED(hr = GetNextTechnique(0, FALSE)))
return hr;
}
}
}
return S_OK;
}
