void ReflRender::BeginRT(Engine& engine, const RtFlags& flags)
{
const DWORD cClipPlanes[6] = {D3DCLIPPLANE0, D3DCLIPPLANE1, D3DCLIPPLANE2, D3DCLIPPLANE3, D3DCLIPPLANE4, D3DCLIPPLANE5};
_MyBase::BeginRT(engine, flags);
CameraDesc desc = engine.GetContext().GetCamera().GetDesc();
D3DXVec3TransformCoord(&desc.pos, &desc.pos, &_reflMat);
D3DXVec3TransformNormal(&desc.dir, &desc.dir, &_reflMat);
D3DXVec3TransformNormal(&desc.up, &desc.up, &_reflMat);
desc.up = -desc.up;
_reflCamera.SetDesc(desc);
//reflCamera.AdjustFarPlane(sceneBox, maxFarDist);
engine.GetContext().ApplyCamera(&_reflCamera);
DWORD enableClipPlanes = cClipPlanes[0];
engine.GetDriver().GetDevice()->SetClipPlane(0, _reflPlane);
LSL_ASSERT(_clipPlanes.size() <= 5);
for (unsigned i = 0; i < _clipPlanes.size(); ++i)
{
enableClipPlanes |= cClipPlanes[i + 1];
engine.GetDriver().GetDevice()->SetClipPlane(i + 1, _clipPlanes[i]);
}
engine.GetContext().SetRenderState(rsClipPlaneEnable, enableClipPlanes);
ApplyRT(engine, flags);
}
void CElementManager::CreateCircle(const D3DXVECTOR3& pos, FLOAT intensity, const SMap *map,
FLOAT lastTime, FLOAT length, INT max, DWORD color, BOOL isPlayer)
{
D3DXVECTOR3 dir;
D3DXMATRIX trans;
if (intensity > 1.f) intensity = 1.f;
INT cnt = static_cast<INT>(max*intensity+0.5f);
D3DXMatrixRotationZ(&trans, 2*D3DX_PI/cnt);
UINT t;
do {
rand_s(&t);
dir.x = t%10-5.f;
rand_s(&t);
dir.y = t%10-5.f;
} while (dir.x == 0.f && dir.y == 0.f);
dir.z = 0.f;
D3DXVec3Normalize(&dir, &dir);
if (isPlayer)
for (INT i(0); i < cnt; ++i) {
D3DXVec3TransformNormal(&dir, &dir, &trans);
m_pEcho.push_back(new CLine(pos, dir,
intensity, map, intensity <= 2.f/9, lastTime, length, color));
}
else
for (INT i(0); i < cnt; ++i) {
D3DXVec3TransformNormal(&dir, &dir, &trans);
m_pAmbience.push_back(new CLine(pos, dir,
intensity, map, intensity <= 2.f/9, lastTime, length, color));
}
}
void BoundingBox::Transform(const D3DXMATRIX& m)
{
D3DXVec3TransformCoord(¢er, ¢er, &m);
D3DXVec3TransformNormal(&vx, &vx, &m);
D3DXVec3TransformNormal(&vy, &vy, &m);
D3DXVec3TransformNormal(&vz, &vz, &m);
}
//just rotate lights a little in place
void Scene::UpdateLights(double fTime)
{
D3DXVECTOR3 offAngleVec3 = D3DXVECTOR3(1, -4, 0);
D3DXMATRIX rotY;
D3DXVECTOR3 dir;
D3DXVec3Normalize(&offAngleVec3, &offAngleVec3);
D3DXMatrixRotationY(&rotY, (float)(fTime / 4.f) * 3.14159265f);
D3DXVec3TransformNormal(&dir, &offAngleVec3, &rotY);
m_lights[0].vLightDir = dir;
D3DXVec3Normalize(&offAngleVec3, &offAngleVec3);
D3DXMatrixRotationY(&rotY, (float)(-fTime / 3.f) * 3.14159265f);
D3DXVec3TransformNormal(&dir, &offAngleVec3, &rotY);
m_lights[1].vLightDir = dir;
D3DXVec3Normalize(&offAngleVec3, &offAngleVec3);
D3DXMatrixRotationY(&rotY, (float)(fTime / 2.f) * 3.14159265f);
D3DXVec3TransformNormal(&dir, &offAngleVec3, &rotY);
m_lights[2].vLightDir = dir;
D3DXVec3Normalize(&offAngleVec3, &offAngleVec3);
D3DXMatrixRotationY(&rotY, (float)(-fTime / 4.f) * 3.14159265f);
D3DXVec3TransformNormal(&dir, &offAngleVec3, &rotY);
m_lights[3].vLightDir = dir;
}
void Camera::Pitch( float angle )
{
D3DXMATRIX R;
D3DXMatrixRotationAxis(&R, &mRight, angle);
D3DXVec3TransformNormal(&mUp, &mUp, &R);
D3DXVec3TransformNormal(&mLook, &mLook, &R);
}
void Camera::Pitch(float _angle)
{
D3DXMATRIX p;
D3DXMatrixRotationAxis(&p, &right, _angle);
D3DXVec3TransformNormal(&up, &up, &p);
D3DXVec3TransformNormal(&look, &look, &p);
}
void Camera::RotateY( float angle )
{
D3DXMATRIX R;
D3DXMatrixRotationY(&R, angle);
D3DXVec3TransformNormal(&mRight, &mRight, &R);
D3DXVec3TransformNormal(&mUp, &mUp, &R);
D3DXVec3TransformNormal(&mLook, &mLook, &R);
}
void Camera::rotateY(float angle)
{
D3DXMATRIX rotation;
D3DXMatrixRotationY(&rotation,angle);
D3DXVec3TransformNormal(&right,&right,&rotation);
D3DXVec3TransformNormal(&up,&up,&rotation);
D3DXVec3TransformNormal(&look,&look,&rotation);
}
void Camera::pitch(float angle)
{
D3DXMATRIX rotation;
D3DXMatrixRotationAxis(&rotation,&right,angle);
D3DXVec3TransformNormal(&up,&up,&rotation);
D3DXVec3TransformNormal(&look,&look,&rotation);
}
void Camera::RotateY(float _angle)
{
D3DXMATRIX r;
D3DXMatrixRotationY(&r, _angle);
D3DXVec3TransformNormal(&right, &right, &r);
D3DXVec3TransformNormal(&up, &up, &r);
D3DXVec3TransformNormal(&look, &look, &r);
}
Ray OBB::GetContactPoint(Ray &ray) {
D3DXMATRIX p, r, world, invWorld;
D3DXMatrixTranslation(&p, m_pos.x, m_pos.y, m_pos.z);
D3DXMatrixRotationQuaternion(&r, &m_rot);
D3DXMatrixMultiply(&world, &r, &p);
D3DXMatrixInverse(&invWorld, NULL, &world);
D3DXVECTOR3 org, dir;
D3DXVec3TransformCoord(&org, &ray.m_org, &invWorld);
D3DXVec3TransformNormal(&dir, &ray.m_dir, &invWorld);
D3DXPLANE planes[] = {D3DXPLANE(0.0f, 0.0f, -1.0f, -m_size.z),
D3DXPLANE(0.0f, 0.0f, 1.0f, -m_size.z),
D3DXPLANE(0.0f, -1.0f, 0.0f, -m_size.y),
D3DXPLANE(0.0f, 1.0f, 0.0f, -m_size.y),
D3DXPLANE(-1.0f, 0.0f, 0.0f, -m_size.x),
D3DXPLANE(1.0f, 0.0f, 0.0f, -m_size.x)
};
D3DXVECTOR3 result, normal;
int numPlanes = 0;
int numIntersections = 0;
for (int i=0; i<6; i++) {
float d = org.x * planes[i].a +
org.y * planes[i].b +
org.z * planes[i].c;
if (d > -planes[i].d) {
D3DXVECTOR3 r;
if (D3DXPlaneIntersectLine(&r, &planes[i], &org, &(org + dir * 1000.0f)) != NULL) {
numPlanes++;
if (abs(r.x) <= m_size.x &&
abs(r.y) <= m_size.y &&
abs(r.z) <= m_size.z) {
D3DXVec3TransformCoord(&r, &r, &world);
result = r;
normal = D3DXVECTOR3(planes[i].a, planes[i].b, planes[i].c);
numIntersections++;
}
}
}
}
if (numIntersections == 0) {
//Warning! OBB No Intersections!
return Ray(ray.m_org, -ray.m_dir);
}
D3DXVec3Normalize(&normal, &normal);
D3DXVec3TransformNormal(&normal, &normal, &world);
return Ray(result, normal);
}
void CPlayer::Rotate(float x, float y, float z)
{
D3DXMATRIX mtxRotate;
DWORD nCurrentCameraMode = m_pCamera->GetMode();
// 1인칭 카메라 또는 3인칭 카메라의 경우 플레이어의 회전은 약간의 제약이 따름
if ((nCurrentCameraMode == FIRST_PERSON_CAMERA) || (nCurrentCameraMode == THIRD_PERSON_CAMERA))
{
// 로컬 x축을 중심으로 회전 회전각도는 -89.0 ~ 89.0 사이로 제한.
//if (x != 0.0f)
//{
// m_fPitch += x;
// if (m_fPitch > +89.0f) { x -= (m_fPitch - 89.0f); m_fPitch = +89.0f; }
// if (m_fPitch < -89.9f) { x -= (m_fPitch + 89.0f); m_fPitch = -89.0f; }
//}
//// 로컬 y축을 중심으로 회전 회전각도 제한없음
//if (y != 0.0f)
//{
// //m_fYaw += y;
// if (m_fYaw > 360.0f) m_fYaw -= 360.0f;
// if (m_fYaw < 0.0f) m_fYaw += 360.0f;
//}
//// 로컬 z축 회전 몸통을 좌우로 기울이는 것 회전각도는 -20 ~ 20 사이로 제한
//// z는 현재 m_fRoll에서 실제 회전하는 각도 z만큼 회전
//if (z != 0.0f)
//{
// m_fRoll += z;
// if (m_fRoll > 20.0f) { z -= (m_fRoll - 20.0f); m_fRoll = +20.0f; }
// if (m_fRoll < -20.0f) { z -= (m_fRoll + 20.0f); m_fRoll = -20.0f; }
//}
// 카메라를 x y z 만큼 회전. 플레이어가 회전하면 카메라가 회전
m_pCamera->Rotate(x, y, z);
if (y != 0.0f)
{
D3DXMatrixRotationAxis(&mtxRotate, &m_d3dxvUp, (float)D3DXToRadian(y));
D3DXVec3TransformNormal(&m_d3dxvLook, &m_d3dxvLook, &mtxRotate);
D3DXVec3TransformNormal(&m_d3dxvRight, &m_d3dxvRight, &mtxRotate);
}
}
// 회전으로 인해 플레이어의 로컬 축이 서로 직교하지 않을수 잇으므로 z축을 기준으로
// 서로 직교하고 단위벡터가 되도록 한다.
D3DXVec3Normalize(&m_d3dxvLook, &m_d3dxvLook);
D3DXVec3Cross(&m_d3dxvRight, &m_d3dxvUp, &m_d3dxvLook);
D3DXVec3Normalize(&m_d3dxvRight, &m_d3dxvRight);
D3DXVec3Cross(&m_d3dxvUp, &m_d3dxvLook, &m_d3dxvRight);
D3DXVec3Normalize(&m_d3dxvUp, &m_d3dxvUp);
RegenerateWorldMatrix();
}
void DX10_Camera_FirstPerson::Process(float _dt)
{
// Get mouse input
//m_pDirectInput->DetectMouseInput(&m_yawChange, &m_pitchChange);
m_yaw += m_yawChange * _dt;
m_pitch += m_pitchChange * _dt;
// Prevent Gimbal Lock
if (m_pitch > m_maxRotation)
{
m_pitch = m_maxRotation;
}
if (m_pitch < m_minRotation)
{
m_pitch = m_minRotation;
}
// Create a full rotation matrix
D3DXMatrixRotationYawPitchRoll(&m_rotationMatrix, m_yaw, m_pitch, 0);
D3DXVec3TransformCoord(&m_target, &m_defaultForward, &m_rotationMatrix);
D3DXVec3Normalize(&m_target, &m_target);
// Calculate a Yaw rotation matrix
D3DXMATRIX RotateYTempMatrix;
D3DXMatrixRotationY(&RotateYTempMatrix, m_yaw);
// Update the Local camera Axis around the Y axis
D3DXVec3TransformNormal(&m_right, &m_defaultRight, &RotateYTempMatrix);
D3DXVec3TransformNormal(&m_up, &m_up, &RotateYTempMatrix);
D3DXVec3TransformNormal(&m_forward, &m_defaultForward, &RotateYTempMatrix);
// Adjust the position
m_position += m_moveStrafe * m_right * _dt;
m_position += m_moveForwards * m_forward * _dt;
m_position += m_moveFly * m_up * _dt;
// reset the the movement values
m_moveStrafe = 0.0f;
m_moveForwards = 0.0f;
m_moveFly = 0.0f;
m_yawChange = 0.0f;
m_pitchChange = 0.0f;
// Pick a target in front of the camera
m_target = m_position + m_target;
// Create the View matrix
D3DXMatrixLookAtLH(&m_matView, &m_position, &m_target, &m_up);
m_pRenderer->SetViewMatrix(m_matView);
m_pRenderer->SetEyePosition(m_position);
}
void FpsCamera::rotate(float x, float y)
{
Matrix rotateX, rotateY;
D3DXMatrixRotationAxis(&rotateX, &m_right, x * m_delta);
D3DXMatrixRotationY(&rotateY, y * m_delta);
Matrix total;
D3DXMatrixMultiply(&total, &rotateX, &rotateY);
D3DXVec3TransformNormal(&m_right, &m_right, &total);
D3DXVec3TransformNormal(&m_up, &m_up, &total);
D3DXVec3TransformNormal(&m_view, &m_view, &total);
normalize();
buildView();
}
void RayIntersection::intersect(engine::IAtomic* atomic, engine::CollisionCallBack callBack, void* data)
{
_callBack = callBack;
_callBackData = data;
_bsp = NULL;
_bspSector = NULL;
_atomic = dynamic_cast<Atomic*>( atomic ); assert( _atomic );
assert( _atomic->_geometry->getOcTreeRoot() );
_geometry = _atomic->_geometry;
_vertices = _geometry->getVertices();
_triangles = _geometry->getTriangles();
if( _atomic->_frame->isDirtyHierarchy() )
{
_atomic->_frame->synchronizeSafe();
}
// transform ray to atomic space
Matrix iLTM;
D3DXMatrixInverse( &iLTM, NULL, &_atomic->_frame->LTM );
D3DXVec3TransformCoord( &_asRay.start, &_ray.start, &iLTM );
D3DXVec3TransformNormal( &_asRay.end, &_ray.end, &iLTM );
collideAtomicOcTreeSector( _geometry->getOcTreeRoot() );
}
/** Intersects the whole primitive. If hit, it returns a distance other than -1 */
float EditorLinePrimitive::IntersectPrimitive(D3DXVECTOR3* RayOrigin, D3DXVECTOR3* RayDirection, float Epsilon)
{
UINT i;
float Shortest = -1;
// Bring the ray into object space
D3DXMATRIX invWorld;
D3DXMatrixInverse(&invWorld, NULL, &WorldMatrix);
D3DXVECTOR3 Origin;
D3DXVECTOR3 Dir;
D3DXVec3TransformCoord(&Origin, RayOrigin, &invWorld);
D3DXVec3TransformNormal(&Dir, RayDirection, &invWorld);
// Go through all line segments and intersect them
for(i = 0; i < NumVertices; i+=2)
{
D3DXVECTOR3 vx[2];
D3DXVec3TransformCoord(&vx[0], Vertices[i].Position.toD3DXVECTOR3(), &WorldMatrix);
D3DXVec3TransformCoord(&vx[1], Vertices[i+1].Position.toD3DXVECTOR3(), &WorldMatrix);
//float Dist = IntersectLineSegment(&Origin, &Dir, Vertices[i].Position.toD3DXVECTOR3(), Vertices[i+1].Position.toD3DXVECTOR3(), Epsilon);
float Dist = IntersectLineSegment(RayOrigin, RayDirection, &vx[0], &vx[1], Epsilon);
if(Dist < Shortest || Shortest == -1)
{
Shortest = Dist / Scale.x;
}
}
if(NumSolidVertices>0)
{
FLOAT fBary1, fBary2;
FLOAT fDist;
int NumIntersections=0;
Shortest = FLT_MAX;
for( DWORD i = 0; i < NumSolidVertices; i+=3 )
{
D3DXVECTOR3 v0 = *SolidVertices[i + 0].Position.toD3DXVECTOR3();
D3DXVECTOR3 v1 = *SolidVertices[i + 1].Position.toD3DXVECTOR3();
D3DXVECTOR3 v2 = *SolidVertices[i + 2].Position.toD3DXVECTOR3();
// Check if the pick ray passes through this point
if( IntersectTriangle( &Origin, &Dir, v0, v1, v2,
&fDist, &fBary1, &fBary2 ) )
{
if( fDist < Shortest || Shortest == -1)
{
NumIntersections++;
Shortest=0;
//if( NumIntersections == MAX_INTERSECTIONS )
// break;
}
}
}
}
return Shortest;
}
void CWallPiece3D::render( const SMatrix4x4& matrix, TPieceVertex* vb, unsigned short* ib, int baseIndex, int& vbcount, int& ibcount, BYTE alpha ) const
{
int i;
// VB
const SVertexXyzNormal* srcVB = &mVB[0];
vbcount = mVB.size();
for( i = 0; i < vbcount; ++i ) {
SVector3 p, n;
D3DXVec3TransformCoord( &p, &srcVB->p, &matrix );
D3DXVec3TransformNormal( &n, &srcVB->n, &matrix );
vb->p = p;
DWORD ncol = gVectorToColor( n );
ncol |= (alpha<<24);
vb->diffuse = ncol;
++srcVB;
++vb;
}
// IB
const int* srcIB = &mIB[0];
ibcount = mIB.size();
for( i = 0; i < ibcount; ++i ) {
int idx = *srcIB + baseIndex;
assert( idx >= 0 && idx < 64000 );
*ib = idx;
++srcIB;
++ib;
}
}
void CEntity::Update()
{
if(m_pMesh )
{
if(m_pMesh->GetColliderType() == MT_UI)
{
SetVisiable(true);
_SINGLE(CObjectManager)->Push_RenderList(this);
}
else if (_SINGLE(CFrustum)->isInFrustum( m_vPos, GetSize() ) )
{
SetVisiable(true);
_SINGLE(CObjectManager)->Push_RenderList(this);
}
else
SetVisiable(false);
}
memcpy(&m_matTrans._41, &m_vPos, sizeof(D3DXVECTOR3));
if(m_bTransformUpdate)
{
Rotation();
Move();
for(int i = 0; i < AT_MAX; ++i)
{
//Ãà ¼¼ÆÃ
D3DXVec3TransformNormal(&m_vWorldAxis[i], &m_vLocalAxis[i], &m_matRot);
D3DXVec3Normalize(&m_vWorldAxis[i], &m_vWorldAxis[i]);
}
m_bTransformUpdate = false;
}
}
int CBoss::Update(void)
{
m_fSeverTime += CTimeMgr::GetInstance()->GetTime();
SetSeverPosMove();
ChangeDir();
D3DXVec3TransformNormal(&m_pInfo->m_vDir, &g_vLook, &m_pInfo->m_matWorld);
m_pTerrainCol->CollisionTerrain(&m_pInfo->m_vPos, m_pVerTex);
if (m_eBossState != BOSS_IDLE)
{
if (dynamic_cast<CDynamicMesh*>(m_pBuffer)->m_bAniEnd == true)
m_eBossState = BOSS_IDLE;
}
//SetCurrling();
CObj::Update();
if (!m_bDeath)
return 0;
else
return 100;
}
//transforms ray from screen space to world space, used for picking models in the game with the mouse
void GetWorldPickingRay(D3DXVECTOR3& vOrigin, D3DXVECTOR3& vDirection)
{
//TR level:Picking
POINT pCursorPosition;
GetCursorPos(&pCursorPosition);
//transforms the position of the cursor to be relative to the client's window
ScreenToClient(pApp->GetMainWindow(), &pCursorPosition);
float w = static_cast<float>(pApp->GetPresentParameters().BackBufferWidth);
float h = static_cast<float>(pApp->GetPresentParameters().BackBufferHeight);
D3DXMATRIX ProjMatrix = camera->GetProjMatrix();
//transforms from screen space to view space
float x = (2.0f * pCursorPosition.x/w - 1.0f) / ProjMatrix(0,0);
float y = (-2.0f*pCursorPosition.y/h + 1.0f) / ProjMatrix(1,1);
//so far the cursor position is transformed from screen space to view space
//our models are in world space, though, so we must make one more transformation - from view space to world space
D3DXVECTOR3 origin(0.0f, 0.0f, 0.0f);
D3DXVECTOR3 direction(x, y, 1.0f);
//makes inverse of the view matrix, to transform the coordinates to world space
D3DXMATRIX InverseViewMatrix;
D3DXMatrixInverse(&InverseViewMatrix, 0, &(camera->GetViewMatrix()));
D3DXVec3TransformCoord(&vOrigin, &origin, &InverseViewMatrix);
D3DXVec3TransformNormal(&vDirection, &direction, &InverseViewMatrix);
D3DXVec3Normalize(&vDirection, &vDirection);
}
RAY MOUSE::GetRay()
{
try
{
D3DXMATRIX projectionMatrix, viewMatrix, worldViewInverse, worldMatrix;
m_pDevice->GetTransform(D3DTS_PROJECTION, &projectionMatrix);
m_pDevice->GetTransform(D3DTS_VIEW, &viewMatrix);
m_pDevice->GetTransform(D3DTS_WORLD, &worldMatrix);
float width = (float)(m_viewport.right - m_viewport.left);
float height = (float)(m_viewport.bottom - m_viewport.top);
float angle_x = (((2.0f * x) / width) - 1.0f) / projectionMatrix(0,0);
float angle_y = (((-2.0f * y) / height) + 1.0f) / projectionMatrix(1,1);
RAY ray;
ray.org = D3DXVECTOR3(0.0f, 0.0f, 0.0f);
ray.dir = D3DXVECTOR3(angle_x, angle_y, 1.0f);
D3DXMATRIX m = worldMatrix * viewMatrix;
D3DXMatrixInverse(&worldViewInverse, 0, &m);
D3DXVec3TransformCoord(&ray.org, &ray.org, &worldViewInverse);
D3DXVec3TransformNormal(&ray.dir, &ray.dir, &worldViewInverse);
D3DXVec3Normalize(&ray.dir, &ray.dir);
return ray;
}
catch(...)
{
debug.Print("Error in MOUSE::GetRay()");
}
return RAY();
}
void ApplicationClass::TestIntersection(int mouseX, int mouseY)
{
float pointX, pointY;
D3DXMATRIX projectionMatrix, viewMatrix, inverseViewMatrix, worldMatrix, translateMatrix, inverseWorldMatrix;
D3DXVECTOR3 direction, origin, rayOrigin, rayDirection;
bool intersect, result;
// Move the mouse cursor coordinates into the -1 to +1 range.
pointX = ((2.0f * (float)mouseX) / (float)m_screenWidth) - 1.0f;
pointY = (((2.0f * (float)mouseY) / (float)m_screenHeight) - 1.0f) * -1.0f;
// Adjust the points using the projection matrix to account for the aspect ratio of the viewport.
m_D3D->GetProjectionMatrix(projectionMatrix);
pointX = pointX / projectionMatrix._11;
pointY = pointY / projectionMatrix._22;
// Get the inverse of the view matrix.
m_Camera->GetViewMatrix(viewMatrix);
D3DXMatrixInverse(&inverseViewMatrix, NULL, &viewMatrix);
// Calculate the direction of the picking ray in view space.
direction.x = (pointX * inverseViewMatrix._11) + (pointY * inverseViewMatrix._21) + inverseViewMatrix._31;
direction.y = (pointX * inverseViewMatrix._12) + (pointY * inverseViewMatrix._22) + inverseViewMatrix._32;
direction.z = (pointX * inverseViewMatrix._13) + (pointY * inverseViewMatrix._23) + inverseViewMatrix._33;
// Get the origin of the picking ray which is the position of the camera.
origin = m_Camera->GetPosition();
// Get the world matrix and translate to the location of the sphere.
m_D3D->GetWorldMatrix(worldMatrix);
D3DXMatrixTranslation(&translateMatrix, -5.0f, 1.0f, 5.0f);
D3DXMatrixMultiply(&worldMatrix, &worldMatrix, &translateMatrix);
// Now get the inverse of the translated world matrix.
D3DXMatrixInverse(&inverseWorldMatrix, NULL, &worldMatrix);
// Now transform the ray origin and the ray direction from view space to world space.
D3DXVec3TransformCoord(&rayOrigin, &origin, &inverseWorldMatrix);
D3DXVec3TransformNormal(&rayDirection, &direction, &inverseWorldMatrix);
// Normalize the ray direction.
D3DXVec3Normalize(&rayDirection, &rayDirection);
// Now perform the ray-sphere intersection test.
intersect = RaySphereIntersect(rayOrigin, rayDirection, 1.0f);
if(intersect == true)
{
// If it does intersect then set the intersection to "yes" in the text string that is displayed to the screen.
result = m_Text->SetIntersection(true, m_D3D->GetDeviceContext());
}
else
{
// If not then set the intersection to "No".
result = m_Text->SetIntersection(false, m_D3D->GetDeviceContext());
}
return;
}
//将屏幕上的点转换为世界坐标系的射线
RAY START::CalcPickingRay(int x, int y)
{
float px = 0.0f;
float py = 0.0f;
D3DVIEWPORT9 vp;
_device->GetViewport(&vp);
D3DXMATRIX proj;
_device->GetTransform(D3DTS_PROJECTION, &proj);
px = ((( 2.0f*x) / vp.Width) - 1.0f) / proj(0, 0);
py = (((-2.0f*y) / vp.Height) + 1.0f) / proj(1, 1);
RAY ray;
ray._origin = D3DXVECTOR3(0.0f, 0.0f, 0.0f);
ray._direction = D3DXVECTOR3(px, py, 1.0f);
//将射线平移至世界坐标系,详情可以参照矩阵的平移以及摄像机类的取景变换矩阵
//下面的代码可以用下一个函数代替
D3DXMATRIX view;
_device->GetTransform(D3DTS_VIEW,&view);
D3DXMatrixInverse(&view, NULL, &view);
D3DXVec3TransformCoord(&ray._origin,&ray._origin,&view);
D3DXVec3TransformNormal(&(ray._direction),&(ray._direction),&view);
D3DXVec3Normalize(&(ray._direction),&(ray._direction));
return ray;
}
void Sun::HandleMessage(const D3DXMATRIX *pViewMatrix)
{
render::Interface *pInterface = render::Interface::GetInstance();
int iW = pInterface->GetWndWidth();
int iH = pInterface->GetWndHeight();
ui::Manager::_tagINPUTINFO *pInputInfo = ui::Manager::GetInstance()->GetInputInfoBuffer();
switch(pInputInfo->eType)
{
case UIMT_MS_BTNDOWN:
if (pInputInfo->dwData == MK_RBUTTON && (pInputInfo->byKeyBuffer[DIK_LALT] & 0x80))
{
m_bDrag = TRUE;
m_qOld = m_qNow;
ScreenToVector(pInputInfo->ptMouse.x,pInputInfo->ptMouse.y,iW,iH,1.0f,&m_vOldVector);
}
break;
case UIMT_MS_MOVE:
if (m_bDrag)
{
ScreenToVector(pInputInfo->ptMouse.x,pInputInfo->ptMouse.y,iW,iH,1.0f,&m_vCurVector);
m_qNow = m_qOld * QuatFromBallPoints( m_vOldVector, m_vCurVector );
D3DXMATRIX mInvView;
D3DXMatrixInverse(&mInvView, NULL, pViewMatrix);
mInvView._41 = mInvView._42 = mInvView._43 = 0;
D3DXMATRIX mLastRotInv;
D3DXMatrixInverse(&mLastRotInv, NULL, &m_mRotSnapshot);
D3DXMATRIX mRot;
D3DXMatrixRotationQuaternion(&mRot, &m_qNow);
m_mRotSnapshot = mRot;
// Accumulate the delta of the arcball's rotation in view space.
// Note that per-frame delta rotations could be problematic over long periods of time.
m_mRot *= *pViewMatrix * mLastRotInv * mRot * mInvView;
// Since we're accumulating delta rotations, we need to orthonormalize
// the matrix to prevent eventual matrix skew
D3DXVECTOR3* pXBasis = (D3DXVECTOR3*) &m_mRot._11;
D3DXVECTOR3* pYBasis = (D3DXVECTOR3*) &m_mRot._21;
D3DXVECTOR3* pZBasis = (D3DXVECTOR3*) &m_mRot._31;
D3DXVec3Normalize( pXBasis, pXBasis );
D3DXVec3Cross( pYBasis, pZBasis, pXBasis );
D3DXVec3Normalize( pYBasis, pYBasis );
D3DXVec3Cross( pZBasis, pXBasis, pYBasis );
//Transform the default direction vector by the light's rotation matrix
D3DXVec3TransformNormal( &m_vCurDirection, &m_vDefDirection , &m_mRot );
}
break;
}
if (!(pInputInfo->dwMouseButtonState & MK_RBUTTON))
{
m_bDrag = FALSE;
}
}
void MirrorDemo::drawReflectedTeapot()
{
HR(gd3dDevice->SetRenderState(D3DRS_STENCILENABLE, true));
HR(gd3dDevice->SetRenderState(D3DRS_STENCILFUNC, D3DCMP_ALWAYS));
HR(gd3dDevice->SetRenderState(D3DRS_STENCILREF, 0x1));
HR(gd3dDevice->SetRenderState(D3DRS_STENCILMASK, 0xffffffff));
HR(gd3dDevice->SetRenderState(D3DRS_STENCILWRITEMASK, 0xffffffff));
HR(gd3dDevice->SetRenderState(D3DRS_STENCILZFAIL, D3DSTENCILOP_KEEP));
HR(gd3dDevice->SetRenderState(D3DRS_STENCILFAIL, D3DSTENCILOP_KEEP));
HR(gd3dDevice->SetRenderState(D3DRS_STENCILPASS, D3DSTENCILOP_REPLACE));
// Disable writes to the depth and back buffers
HR(gd3dDevice->SetRenderState(D3DRS_ZWRITEENABLE, false));
HR(gd3dDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, true));
HR(gd3dDevice->SetRenderState(D3DRS_SRCBLEND, D3DBLEND_ZERO));
HR(gd3dDevice->SetRenderState(D3DRS_DESTBLEND, D3DBLEND_ONE));
// Draw mirror to stencil only.
drawMirror();
// Re-enable depth writes
HR(gd3dDevice->SetRenderState( D3DRS_ZWRITEENABLE, true ));
// Only draw reflected teapot to the pixels where the mirror
// was drawn to.
HR(gd3dDevice->SetRenderState(D3DRS_STENCILFUNC, D3DCMP_EQUAL));
HR(gd3dDevice->SetRenderState(D3DRS_STENCILPASS, D3DSTENCILOP_KEEP));
// Build Reflection transformation.
D3DXMATRIX R;
D3DXPLANE plane(0.0f, 0.0f, 1.0f, 0.0f); // xy plane
D3DXMatrixReflect(&R, &plane);
// Save the original teapot world matrix.
D3DXMATRIX oldTeapotWorld = mTeapotWorld;
// Add reflection transform.
mTeapotWorld = mTeapotWorld * R;
// Reflect light vector also.
D3DXVECTOR3 oldLightVecW = mLightVecW;
D3DXVec3TransformNormal(&mLightVecW, &mLightVecW, &R);
HR(mFX->SetValue(mhLightVecW, &mLightVecW, sizeof(D3DXVECTOR3)));
// Disable depth buffer and render the reflected teapot.
HR(gd3dDevice->SetRenderState(D3DRS_ZENABLE, false));
HR(gd3dDevice->SetRenderState(D3DRS_ALPHABLENDENABLE, false));
// Finally, draw the reflected teapot
HR(gd3dDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_CW));
drawTeapot();
mTeapotWorld = oldTeapotWorld;
mLightVecW = oldLightVecW;
// Restore render states.
HR(gd3dDevice->SetRenderState(D3DRS_ZENABLE, true));
HR(gd3dDevice->SetRenderState( D3DRS_STENCILENABLE, false));
HR(gd3dDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_CCW));
}
void CPlayer::Turn( float fRadians )
{
D3DXMATRIX mRot;
D3DXMatrixRotationY( &mRot, fRadians );
D3DXVECTOR3 vNewDir;
D3DXVec3TransformNormal( &vNewDir, &m_vDirection, &mRot );
D3DXVec3Normalize( &m_vDirection, &vNewDir );
}
void DXCamera::Update(float _dt)
{
D3DXMatrixRotationYawPitchRoll(&m_matrixRotation, m_yaw, m_pitch, 0);
D3DXVec3TransformCoord(&m_vec3Target, &m_vec3DefaultForward, &m_matrixRotation);
D3DXVec3Normalize(&m_vec3Target, &m_vec3Target);
switch (m_type)
{
case eCamera::ECAMERA_DEFAULT:
{
D3DXVec3TransformNormal(&m_vec3Right, &m_vec3DefaultRight, &m_matrixRotation);
D3DXVec3TransformNormal(&m_vec3Forward, &m_vec3DefaultForward, &m_matrixRotation);
D3DXVec3Cross(&m_vec3Up, &m_vec3Forward, &m_vec3Right);
}
break;
case eCamera::ECAMERA_FPS:
{
D3DXMATRIX RotateYTempMatrix;
D3DXMatrixRotationY(&RotateYTempMatrix, m_yaw);
D3DXVec3TransformNormal(&m_vec3Right, &m_vec3DefaultRight, &RotateYTempMatrix);
D3DXVec3TransformNormal(&m_vec3Up, &m_vec3DefaultUp, &RotateYTempMatrix);
D3DXVec3TransformNormal(&m_vec3Forward, &m_vec3DefaultForward, &RotateYTempMatrix);
}
break;
case eCamera::ECAMERA_THIRD:
{
// TODO
}
break;
}
// Update position
m_vec3Position += m_moveLR * m_vec3Right * _dt;
m_vec3Position += m_moveFB * m_vec3Forward * _dt;
// Reset the movement
m_moveLR = 0.0f;
m_moveFB = 0.0f;
// Adjust the target
m_vec3Target = m_vec3Position + m_vec3Target;
D3DXMatrixLookAtLH(&m_matrixView, &m_vec3Position, &m_vec3Target, &m_vec3Up);
}
void BoundingBox::TransformRayToLocalSpace(Vector3f *rayOrigin, Vector3f *rayDir)const {
Transform *pParentTransform = (Transform*)pParent->GetComponent(TRANSFORM);
D3DXMATRIX inverseW;
D3DXMATRIX mObjMatrix;
pParentTransform->GetTransformMatrix(mObjMatrix);
D3DXMatrixInverse(&inverseW, 0, &mObjMatrix);
D3DXVec3TransformCoord(rayOrigin, rayOrigin, &inverseW);
D3DXVec3TransformNormal(rayDir, rayDir, &inverseW);
}
void CTourist::MoveToward(const float fElapsedTime)
{
D3DXVECTOR3 vTrans(0, 0, m_fSpeed*fElapsedTime);
D3DXVec3TransformNormal(&vTrans, &vTrans, &m_mOrientation);
m_vPos += vTrans;
//平移调整物体世界坐标方向矩阵
D3DXMATRIX mTrans;
D3DXMatrixTranslation(&mTrans, vTrans.x, vTrans.y, vTrans.z);
D3DXMatrixMultiply(&m_mOrientation, &m_mOrientation, &mTrans);
}
void Picking::TransformRay(Ray* ray, D3DXMATRIX* matrix)
{
//转化射线的起始点, w = 1.
D3DXVec3TransformCoord(&ray->m_vOrigin, &ray->m_vOrigin, matrix);
//转化射线的方向向量, w = 0.
D3DXVec3TransformNormal(&ray->m_vDirection, &ray->m_vDirection, matrix);
//单位化方向向量
D3DXVec3Normalize(&ray->m_vDirection, &ray->m_vDirection);
}