HRESULT CMyCompositor9::AdjustViewMatrix( IDirect3DDevice9* d3ddev )
{
ASSERT( d3ddev );
HRESULT hr;
if( m_needTurn == false ) {
return S_FALSE;
}
//
// view matrix
//
float x, y;
x = float( m_x ) / 100 ;
y = float( m_y ) / 100 ;
D3DVECTOR from = { x, y, -4.0f };
D3DVECTOR at = { 0.0f, 1.0f, 0.0f };
D3DVECTOR up = { 0.0f, 1.0f, 0.0f };
D3DMATRIX matView;
MatrixLookAtLH(&matView, &from, &at, &up);
FAIL_RET( d3ddev->SetTransform( D3DTS_VIEW, &matView ) );
m_needTurn = false;
return hr;
}
void C3d::SetupMatrices()
{
D3DXMATRIXA16 matWorld1;
D3DXMATRIXA16 mat;
D3DXVECTOR3 vEyePt(0.0f, vRadius*distance*1.025f,vRadius*distance*-3.0f );
D3DXVECTOR3 vLookatPt( 0.0f, 0.0f, 0.0f );
D3DXVECTOR3 vUpVec( 0.0f, 0.5f, 0.0f );
if(rotation)
{
D3DXMatrixIdentity(&mat);
MatrixRotationY( &mat, timeGetTime()/1500.0f );
}
else
{
m_abArcBall.GetMat(&mat);
vEyePt = D3DXVECTOR3(0.0f, 0.0f,vRadius*distance*-4.0f);
vLookatPt = D3DXVECTOR3( 0.0f, 0.0f, 0.0f );
vUpVec = D3DXVECTOR3( 0.0f, 1.0f, 1.0f );
}
MatrixMultiply(&matWorld , &mat, &matWorld1);
g_pd3dDevice->SetTransform( D3DTS_WORLD, &matWorld1 );
D3DXMATRIXA16 matView;
MatrixLookAtLH(&matView, &vEyePt, &vLookatPt, &vUpVec );
g_pd3dDevice->SetTransform( D3DTS_VIEW, &matView );
D3DXMATRIXA16 matProj;
MatrixPerspectiveFovLH( &matProj, D3DX_PI/5, Aspect, 1.0f, vRadius*20);// 10.0f );
g_pd3dDevice->SetTransform( D3DTS_PROJECTION, &matProj );
}
// updates matrices from current settings
void ShadowCamera::CalculateMatrices(void)
{
// view matrix
m_mView = MatrixLookAtLH(m_vSource, m_vTarget, m_vUpVector);
// projection matrix
m_mProj = MatrixPerspectiveFovLH(m_fFOV, GetApp()->GetAspectRatio(), m_fNear, m_fFar);
}
