void GCamera::SetOrientation(float pitch, float yaw, float roll)
{
m_pitch = pitch;
m_yaw = yaw;
m_roll = roll;
CalculateFrustum();
}
void CascadeShadow::CascadeUpdate(){
float nearClip = 0.01f;
float farClip = 100.0f;
float m_Lamda = 0.8f;
// 平行分割処理.
float splitPositions[MAX_CASCADE + 1];
ComputeSplitPositions(MAX_CASCADE, m_Lamda, nearClip, farClip, splitPositions);
float SlideBack = 50.0f;
auto camera = Game::GetMainCamera();
auto campos = camera->gameObject->mTransform->WorldPosition();
auto camvec = camera->gameObject->mTransform->Forward();
float forward = splitPositions[0];
// カスケード処理.
for (int i = 0; i<MAX_CASCADE; ++i)
{
float size = splitPositions[i + 1] - splitPositions[i + 0];
auto lightPos = campos + camvec * (forward + size / 2) + mLightVect * -SlideBack;
m_LightView = XMMatrixLookToLH(lightPos, mLightVect, XMVectorSet(0, 1, 0, 1));
forward += size;
float aspect = float(WindowState::mWidth) / float(WindowState::mHeight);
float fov = XM_PIDIV4;
float farHeight = tanf(fov) * splitPositions[i + 1];
float farWidth = farHeight * aspect;
size = farWidth * 1.41421356f * 1.41421356f;
m_LightProj = XMMatrixOrthographicLH(size, size, 0.01f, 100.0f);
// ライトのビュー射影行列.
m_ShadowMatrix[i] = m_LightView * m_LightProj;
XMVECTOR min, max;
// 分割した視錘台の8角をもとめて，ライトのビュー射影空間でAABBを求める.
CalculateFrustum(
splitPositions[i + 0],
splitPositions[i + 1],
m_ShadowMatrix[i],
&min,
&max);
// クロップ行列を求める.
XMMATRIX crop = CreateCropMatrix(min, max);
// シャドウマップ行列と分割位置を設定.
m_ShadowMatrix[i] = m_ShadowMatrix[i] * crop;
m_SplitPos[i] = splitPositions[i + 1];
}
}
void CAMERA::Update(MOUSE &mouse, float timeDelta)
{
//Restrict focus movment to the xz-plane
m_right.y = m_look.y = 0.0f;
D3DXVec3Normalize(&m_look, &m_look);
D3DXVec3Normalize(&m_right, &m_right);
//Move Focus (i.e. Scroll)
if(mouse.x < mouse.m_viewport.left + 10) Scroll(-m_right * timeDelta * 30.0f);
if(mouse.x > mouse.m_viewport.right - 10) Scroll(m_right * timeDelta * 30.0f);
if(mouse.y < mouse.m_viewport.top + 10) Scroll(m_look * timeDelta * 30.0f);
if(mouse.y > mouse.m_viewport.bottom - 10) Scroll(-m_look * timeDelta * 30.0f);
//Move Camera (i.e. Change Angle)
if(KEYDOWN(VK_LEFT))Yaw(-timeDelta);
if(KEYDOWN(VK_RIGHT))Yaw(timeDelta);
if(KEYDOWN(VK_UP))Pitch(timeDelta);
if(KEYDOWN(VK_DOWN))Pitch(-timeDelta);
//Zoom (i.e. change fov)
if(KEYDOWN(VK_ADD))Zoom(-timeDelta);
if(KEYDOWN(VK_SUBTRACT))Zoom(timeDelta);
//Change m_radius
if(mouse.WheelUp()) ChangeRadius(-1.0f);
if(mouse.WheelDown())ChangeRadius(1.0f);
//Calculate Eye Position
float sideRadius = m_radius * cos(m_beta);
float height = m_radius * sin(m_beta);
m_eye = D3DXVECTOR3(m_focus.x + sideRadius * cos(m_alpha),
m_focus.y + height,
m_focus.z + sideRadius * sin(m_alpha));
if(m_pDevice != NULL)
{
D3DXMATRIX view = GetViewMatrix();
D3DXMATRIX projection = GetProjectionMatrix();
m_pDevice->SetTransform(D3DTS_VIEW, &view);
m_pDevice->SetTransform(D3DTS_PROJECTION, &projection);
CalculateFrustum(view, projection);
}
}
// finds scene objects inside the camera frustum
std::vector<SceneObject *> ShadowCamera::FindReceivers(void)
{
Frustum cameraFrustum = CalculateFrustum(m_fNearMin, m_fFarMax);
cameraFrustum.CalculateAABB();
std::vector<SceneObject *> receivers;
receivers.reserve(g_SceneObjects.size());
for(unsigned int i=0; i<g_SceneObjects.size(); i++)
{
SceneObject *pObject = g_SceneObjects[i];
// intersection test
if(g_iVisibilityTest == VISTEST_ACCURATE) {
// test accurately
if(!IntersectionTest(pObject->m_AABB, cameraFrustum)) continue;
} else if(g_iVisibilityTest == VISTEST_CHEAP) {
// test only with AABB of frustum
if(!IntersectionTest(pObject->m_AABB, cameraFrustum.m_AABB)) continue;
}
receivers.push_back(pObject);
}
return receivers;
}
void GCamera::SetFieldOfView(float fov)
{
m_hfov = fov;
m_vfov = m_hfov / m_aspect_ratio;
CalculateFrustum();
}
GCamera::GCamera(unsigned int img_width, unsigned int img_height, float fov) : m_hfov(fov), m_pitch(0), m_yaw(0), m_roll(0)
{
SetImageDimensions(img_width, img_height);
CalculateFrustum();
m_position = Vector3f::Zero();
}
