void Camera::updateTransform()
{
// Store the rotation matrix here.
float matRot[4][4];
// Determine rotation matrix from quaternion.
build_rotmatrix(matRot, m_fQuat);
// Normal camera direction
Vec3f vDirection(0,0,m_fDolly);
Vec3f vUpVector(0,1,0);
// Apply the rotation matrix to determine the camera's new direction.
Vec3f vNewDirection(
matRot[0][0] * vDirection[0] + matRot[0][1] * vDirection[1] + matRot[0][2] * vDirection[2],
matRot[1][0] * vDirection[0] + matRot[1][1] * vDirection[1] + matRot[1][2] * vDirection[2],
matRot[2][0] * vDirection[0] + matRot[2][1] * vDirection[1] + matRot[2][2] * vDirection[2]
);
// Apply the rotation matrix to determine the camera's new up-vector.
Vec3f vNewUpVector(
matRot[0][0] * vUpVector[0] + matRot[0][1] * vUpVector[1] + matRot[0][2] * vUpVector[2],
matRot[1][0] * vUpVector[0] + matRot[1][1] * vUpVector[1] + matRot[1][2] * vUpVector[2],
matRot[2][0] * vUpVector[0] + matRot[2][1] * vUpVector[1] + matRot[2][2] * vUpVector[2]
);
// Update camera.
m_vPosition = m_vLookAt + vNewDirection;
m_vUpVector = vNewUpVector;
// Not dirty anymore
m_bDirtyTransform = false;
}
void Application::HandleRender()
{
XMFLOAT3 vUpVector(0.0f, 1.0f, 0.0f);
XMFLOAT3 vCamera, vLookat;
switch (m_cameraState)
{
case CAMERA_MAP:
vCamera = XMFLOAT3(sin(m_rotationAngle)*m_cameraZ, 2000.0f, cos(m_rotationAngle)*m_cameraZ);
vLookat = XMFLOAT3(0.0f, 0.0f, 0.0f);
break;
case CAMERA_BOID:
//vCamera = XMFLOAT3(m_birds.at(0)->GetCameraPosition().x, m_birds.at(0)->GetCameraPosition().y, m_birds.at(0)->GetCameraPosition().z);
//vLookat = XMFLOAT3(m_birds.at(0)->GetFocusPosition().x, m_birds.at(0)->GetFocusPosition().y, m_birds.at(0)->GetFocusPosition().z);
break;
}
XMMATRIX matView;
matView = XMMatrixLookAtLH(XMLoadFloat3(&vCamera), XMLoadFloat3(&vLookat), XMLoadFloat3(&vUpVector));
XMMATRIX matProj;
matProj = XMMatrixPerspectiveFovLH(float(XM_PI / 4), 2, 1.5f, 5000.0f);
this->SetViewMatrix(matView);
this->SetProjectionMatrix(matProj);
this->EnablePointLight(0, XMFLOAT3(100.0f, 100.f, -100.f), XMFLOAT3(1.f, 1.f, 1.f));
this->SetLightAttenuation(0, 200.f, 2.f, 2.f, 2.f);
this->EnableDirectionalLight(1, D3DXVECTOR3(-1.f, -1.f, -1.f), D3DXVECTOR3(0.65f, 0.55f, 0.65f));
//changes the background colour
this->Clear(XMFLOAT4(.6f, .6f, .6f, 1.f));
XMMATRIX matWorld;
matWorld = XMMatrixIdentity();
this->SetWorldMatrix(matWorld);
m_pHeightMap->Draw();
m_bManager->drawBirds();
}
