void wxOgre::cameraTrackNode(Ogre::SceneNode* target)
{
static const wxString camCalcPosCaption(wxT("CalcCamPos:X:%08.4f, Y:%08.4f, Z:%08.4f"));
static const wxString camRealPosCaption(wxT("CalcCamPos:X:%08.4f, Y:%08.4f, Z:%08.4f"));
// TODO: Position camera somwehere sensible relative to object
if (target)
{
Ogre::LogManager* logMgr = Ogre::LogManager::getSingletonPtr();
Ogre::Log* log(logMgr->getDefaultLog());
mTarget = target;
Ogre::Vector3 size( target->getAttachedObject(0)->getBoundingBox().getSize() );
Ogre::Vector3 camPos(target->getPosition() + size * 1.2f);
setZoomScale(size.length() / 30.0f);
mCameraNode->setPosition(camPos);
mCamera->lookAt(target->getPosition());
mDebugPanelOverlay->show();
wxString msg(wxString::Format(camCalcPosCaption, camPos.x, camPos.y, camPos.x));
log->logMessage(Ogre::String(msg.mb_str(wxConvUTF8)));
Ogre::Vector3 camRealPos(mCamera->getRealPosition());
msg = wxString(wxString::Format(camCalcPosCaption, camRealPos.x, camRealPos.y, camRealPos.x));
log->logMessage(Ogre::String(msg.mb_str(wxConvUTF8)));
} else {
mTarget = NULL;
}
}
int CcdChapter::OnUpdateGame()
{
Vector3 camPos(Vector3::ZERO);
if( m_nKeyState & 1 )
camPos.z -= 5.f;
else if( m_nKeyState & 2 )
camPos.z += 5.f;
if( m_nKeyState & 4 )
camPos.x -= 5.f;
else if( m_nKeyState & 8 )
camPos.x += 5.f;
m_pkCamera->moveRelative(camPos);
if( m_nMouseState & 2 )
{
POINT pt;
GetCursorPos( &pt );
m_pkCamera->pitch( Degree(m_MousePos.y-pt.y) );
m_pkCamera->yaw( Degree(m_MousePos.x-pt.x) );
SetCursorPos(m_MousePos.x, m_MousePos.y);
}
return 0;
}
double Rectangle::intersect(Vector rayVec, Camera camera) const {
Position vecPos = camera.pos;
this->applyTransformations(vecPos, rayVec);
Vector normal(-this->width, 0, this->height);
Vector objPos(pos.x, pos.y, pos.z);
Vector camPos(vecPos.x, vecPos.y, vecPos.z);
Vector B(this->width, 0, this->height);
double r, d, n;
d = normal.dot(rayVec);
n = normal.dot(objPos) - normal.dot(camPos);
if (d == 0)
return -1;
r = n / d;
if (r < 0)
return -1;
return r;
Position inter;
inter.x = vecPos.x + r * rayVec.x;
inter.y = vecPos.y + r * rayVec.y;
inter.z = vecPos.z + r * rayVec.z;
Vector interVec(pos.x - inter.x, pos.y - inter.y, pos.z - inter.z);
interVec.makeUnit();
B.makeUnit();
double p = interVec.dot(B);
// std::cout << p << "\n";
if (p >= -0.000001 && p <= 0.000001)
return r;
return -1;
}
bool CD3DGraphics11::RenderBumpMapShdaer(D3DXMATRIX world, int numIndices, CMaterialDX11 mat)
{
CGameScene& scene = SYSTEM::PROJECT::GetScene();
CGameobjectList l = scene.GetLightList();
int n_l = l.GetNumObjects();
CCamera* c = scene.GetCamera(0);
if (!c)
return false;
D3DXVECTOR4 amb(mat.GetAmbientColor().r, mat.GetAmbientColor().g, mat.GetAmbientColor().b, mat.GetAmbientColor().a);
D3DXVECTOR4 spec(mat.GetSpecularColor().r, mat.GetSpecularColor().g, mat.GetSpecularColor().b, mat.GetSpecularColor().a);
D3DXVECTOR3 camPos(c->GetTransform().GetTranslation().x, c->GetTransform().GetTranslation().y,
c->GetTransform().GetTranslation().z);
ID3D11ShaderResourceView* difTex = mat.GetDiffuseTexture();
ID3D11ShaderResourceView* specTex = mat.GetSpecularMap();
ID3D11ShaderResourceView* bumpTex = mat.GetBumpMap();
if (!difTex)
difTex = m_pDefaultTexture;
if (!specTex)
specTex = m_pDefaultTexture;
if (!bumpTex)
bumpTex = m_pDefaultTexture;
return m_bumpMapShader.Render(*this, numIndices, m_matrices.view, world, m_matrices.projection, difTex, specTex, bumpTex,
l, n_l,amb, camPos, spec, 64.0f);
return true;
}
bool GameRenderer::Initialize(MaterialHandler* mtlHandlerPtr, MeshHandler* meshHandlerPtr, TextureHandler* texHandlerPtr, TransformHandler* transformHandlerPtr)
{
materialHandler = mtlHandlerPtr;
meshHandler = meshHandlerPtr;
textureHandler = texHandlerPtr;
transformHandler = transformHandlerPtr;
glfwWindow = glfwGetCurrentContext();
glfwGetFramebufferSize(glfwWindow, &screenWidth, &screenHeight);
float ratio = (float)screenWidth / (float) screenHeight;
glViewport(0, 0, screenWidth, screenHeight);
glClearColor(0.4f, 0.4f, 0.5f, 1.0f);
glm::vec3 camPos(0.0f, 25.0f, -70.0f);
glm::vec3 treePos(0.0f, 0.0f, 0.0f);
glm::vec3 scalingVector(1.5f);
glm::vec3 targetOffset = glm::vec3(0.0f, 6.0f, 0.0f) * scalingVector;
scaleMatrix = glm::scale(glm::mat4(), scalingVector);
wvpMatrixStruct.projMatrix = glm::perspective(45.0f, ratio, 0.25f, 300.0f);
wvpMatrixStruct.viewMatrix = glm::lookAt(
camPos,
treePos+targetOffset,
glm::vec3(0.0f, 1.0f, 0.0f)
);
glGenBuffers(1, &matrixUBO);
glBindBuffer(GL_UNIFORM_BUFFER, matrixUBO);
glBufferData(GL_UNIFORM_BUFFER, sizeof(Matrices), (void *)(&wvpMatrixStruct), GL_DYNAMIC_DRAW);
glBindBuffer(GL_UNIFORM_BUFFER, 0);
SetupRenderPasses();
//Loading and compiling all shaders etc
if(!shaderManager.Initialize())
{
return false;
}
Shader* genericShader = nullptr;
if(!shaderManager.GetShader("objshader", &genericShader))
{
LOG(ERROR) << "Couldn't fetch objshader from shadermanager. Aborting.";
return false;
}
else
{
objShader = static_cast<OBJShader*>(genericShader);
objShader->SetupBuffers(matrixUBO, 0);
}
return true;
}
void AppMain()
{
Vector3 camFr(0.476459, -0.334238, 0.813186);
Vector3 camUp(00.168968, 0.942489, 0.288382);
Vector3 camRi = camUp ^ camFr;
Vector3 camPos(-6, 10, -13);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(50,
(float)SCREEN_W / (float)SCREEN_H, // Aspect ratio
0.1, 1000); // Far plane
while (!g_keys[KEY_ESC])
{
glClear(GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT);
float camPosMag = camPos.Mag();
float moveSpeed = 0.01f * camPosMag;
int velx, vely;
get_mouse_mickeys(&velx, &vely);
if (mouse_b & 2)
{
camFr.RotateAroundY((float)-velx / 100.0f);
camUp.RotateAroundY((float)-velx / 100.0f);
camRi = camUp ^ camFr;
camFr.RotateAround(camRi, (float)vely / 100.0f);
camUp.RotateAround(camRi, (float)vely / 100.0f);
moveSpeed *= 3.0f;
}
if (key[KEY_W]) camPos += camFr * moveSpeed;
if (key[KEY_S]) camPos -= camFr * moveSpeed;
if (key[KEY_A]) camPos += camRi * moveSpeed;
if (key[KEY_D]) camPos -= camRi * moveSpeed;
if (key[KEY_Q]) camPos.y -= moveSpeed;
if (key[KEY_E]) camPos.y += moveSpeed;
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
Vector3 lookAtPos = camPos + camFr;
gluLookAt(camPos.x, camPos.y, camPos.z,
lookAtPos.x, lookAtPos.y, lookAtPos.z,
camUp.x, camUp.y, camUp.z);
DrawGrid(camPos);
// *** Do the maths we actually want to test
MainUserLoop();
allegro_gl_flip();
}
return 0;
}
void OmniMapD3D::LoadAndPush_ProjectiveTexturing_Matricies()
{
D3DXMATRIX matView;
D3DXVECTOR3 camPos( ProjectorPosition.pos.x, ProjectorPosition.pos.y, ProjectorPosition.pos.z ); // Camera position
D3DXVECTOR3 camLookat( ProjectorPosition.lookAtpos.x, ProjectorPosition.lookAtpos.y, ProjectorPosition.lookAtpos.z ); // Look-at point
D3DXVECTOR3 camUp( ProjectorPosition.headsUp.x, ProjectorPosition.headsUp.y, ProjectorPosition.headsUp.z ); // Up vector
D3DXMatrixOrthoRH(&worldViewProjection, 2.0, 2.0, 0.0, 1.0f);
D3DXMatrixLookAtRH( &worldView, &camPos, &camLookat, &camUp);
}
bool wxOgre::frameEnded(const Ogre::FrameEvent& evt)
{
static const wxString camPosCaption(wxT("CamPos:X:%06.3f, Y:%06.3f, Z:%06.3f"));
Ogre::OverlayElement* guiCurr = Ogre::OverlayManager::getSingleton().getOverlayElement("TextAreaOverlayElement");
Ogre::Vector3 camPos(mCamera->getRealPosition());
wxString camText(wxString::Format(camPosCaption, camPos.x, camPos.y, camPos.z));
guiCurr->setCaption(Ogre::String(camText.mb_str(wxConvUTF8)));
return true;
}
void getcamPose(cv::Point3f & campose)
{
cv::Mat invR(3,3,CV_64F);
invR=rotateMat.t();
cv::Mat camPos(3,1,CV_64F); //正交阵求逆
camPos=invR*tranVector;
// std::cout<<"invR="<<invR<<std::endl;
//std::cout<<"camPos"<<camPos<<std::endl;
campose.x=-1*camPos.at<double>(0,0);
campose.y=-1*camPos.at<double>(1,0);
campose.z=-1*camPos.at<double>(2,0);
}
void ObjcetControl::cameraMove( float x,float y,float z )
{
//根据箭头与摄像机的距离,动态调整箭头的大小
Ogre::Vector3 camPos(x,y,z);
camPos-=mArrowNode->getPosition();
float camDistance=camPos.squaredLength();
camDistance/=5000;
if (camDistance<=1)
{
camDistance=1;
}
mArrowNode->setScale(camDistance,camDistance,camDistance);
}
// Disables the game and ship
void ShipRace::DisableGame()
{
D3DXVECTOR3 camPos(0.0f, 0.0f, -1000.0f);
gEngine->GetCamera()->SetCamPos(camPos);
endScreen->SetVisible(true);
raceTrack->SetTrackStatus(false);
ship->SetShipStatus(false);
mIsGameOver = true;
for (int i = 0; i < 9; ++i)
{
mObstacles[i]->SetActive(false);
}
}
void CCameraController::update(float dtime)
{
if (m_active && m_object != nullptr && m_camera != nullptr)
{
// Update camera movement
glm::vec3 pos = m_object->getPosition();
glm::vec3 forward = m_object->getForward();
// Where the camera should be
glm::vec3 camPos(pos.x - forward.x * 8.f, pos.y * 0.95f + 3.f, pos.z - forward.z * 8.f);
m_camera->setPosition(camPos);
// Init on first update
if (m_first)
{
m_first = false;
m_prevLookAt = pos + forward * 3.f;
}
//
glm::vec3 targetLookAt = pos + forward * 3.f;
float distance = glm::distance(targetLookAt, m_prevLookAt);
glm::vec3 d = glm::normalize(targetLookAt - m_prevLookAt);
if (distance > 5.f)
{
m_speed = 26.f;
}
if (distance < 2.f)
{
m_speed = 20.f;
}
float move = m_speed * dtime;
if (move >= distance || distance > 8.f)
{
m_prevLookAt = targetLookAt;
}
else
{
m_prevLookAt += d * move;
}
m_camera->lookAt(m_prevLookAt, glm::vec3(0.f, 1.f, 0.f));
}
}
void OgreWidget::initOgreSystem()
{
ogreRoot = new Ogre::Root();
Ogre::RenderSystem *renderSystem = ogreRoot->getRenderSystemByName("OpenGL Rendering Subsystem");
ogreRoot->setRenderSystem(renderSystem);
ogreRoot->initialise(false);
ogreSceneManager = ogreRoot->createSceneManager(Ogre::ST_GENERIC);
Ogre::NameValuePairList viewConfig;
Ogre::String widgetHandle;
#ifdef Q_WS_WIN
widgetHandle = Ogre::StringConverter::toString((size_t)((HWND)winId()));
#else
QWidget *q_parent = dynamic_cast <QWidget *> (parent());
QX11Info xInfo = x11Info();
widgetHandle = Ogre::StringConverter::toString ((unsigned long)xInfo.display()) +
":" + Ogre::StringConverter::toString ((unsigned int)xInfo.screen()) +
":" + Ogre::StringConverter::toString ((unsigned long)q_parent->winId());
#endif
viewConfig["externalWindowHandle"] = widgetHandle;
ogreRenderWindow = ogreRoot->createRenderWindow("Ogre rendering window",
width(), height(), false, &viewConfig);
ogreCamera = ogreSceneManager->createCamera("myCamera");
Ogre::Vector3 camPos(0, 50,150);
ogreCamera->setPosition(camPos);
ogreCamera->lookAt(0,50,0);
emit cameraPositionChanged(camPos);
ogreViewport = ogreRenderWindow->addViewport(ogreCamera);
ogreViewport->setBackgroundColour(Ogre::ColourValue(0,0,255));
ogreCamera->setAspectRatio(Ogre::Real(width()) / Ogre::Real(height()));
setupNLoadResources();
createScene();
}
void DistanceSensor::drawObject(const VisualizationParameterSet& visParams)
{
if(visParams.visualizeSensors && !visParams.drawForSensor)
{
glColor3d(visualizationColor.v[0],
visualizationColor.v[1],
visualizationColor.v[2]);
Vector3d camPos(position);
if(projection == SPHERICAL_PROJECTION)
{
glBegin(GL_LINES);
for(unsigned int i=0; i< sensorDataSize; i++)
{
Vector3d distanceVec(sensorReading.data.doubleArray[i],0,0);
double maxAngle(angleX);
double zRotation(maxAngle/(double)resolutionX);
zRotation *= (double)i;
zRotation -= maxAngle/2.0;
distanceVec.rotateZ(zRotation);
distanceVec.rotate(rotation);
distanceVec+=position;
glVertex3d (camPos.v[0], camPos.v[1], camPos.v[2]);
glVertex3d (distanceVec.v[0], distanceVec.v[1], distanceVec.v[2]);
}
glEnd();
}
else
{
Vector3d distanceVec(sensorReading.data.doubleArray[0],0,0);
distanceVec.rotate(rotation);
distanceVec+=position;
//Draw distance vector
glBegin(GL_LINES);
glVertex3d (camPos.v[0], camPos.v[1], camPos.v[2]);
glVertex3d (distanceVec.v[0], distanceVec.v[1], distanceVec.v[2]);
glEnd();
}
}
}
inline void flua_setCamera(float x, float y, float z, float camAngleX, float camAngleY) {
glm::vec3 lookat(0, 0, 0);
lookat.x = sinf(camAngleX) * cosf(camAngleY);
lookat.y = sinf(camAngleY);
lookat.z = -cosf(camAngleX) * cosf(camAngleY);
glm::vec3 camPos(x, y, z);
glm::vec3 camUp(0.0, 1.0, 0.0);
#ifdef _WIN32
int nWidth = glutGet(GLUT_WINDOW_WIDTH);
int nHeight = glutGet(GLUT_WINDOW_HEIGHT);
if(flua_width != nWidth || flua_height != nHeight) {
flua_onReshape(nWidth, nHeight);
}
#endif
flua_viewMatrix = glm::lookAt(camPos, camPos + lookat, camUp);
flua_viewAndProjectionMatrix = flua_projectionMatrix * flua_viewMatrix;
}
void SegmentedRayCastingRenderer::preRender() {
_tfTex->bind(1);
_shader->setUniform2f("imageScale", 1.0f / (float)_renderWindow->width(), 1.0f / (float)_renderWindow->height());
_shader->setUniform1f("sampleInterval", (*_ps)["sampleStep"].toFloat() * _model->scaledDim().length());
_shader->setUniform4f("lightParam", (*_ps)["ambient"].toFloat(), (*_ps)["diffuse"].toFloat(), (*_ps)["specular"].toFloat(), (*_ps)["shininess"].toFloat());
Vector3 v = _renderWindow->getCamera().getCamPosition();
Vector3f camPos((float)v.x(), (float)v.y(), (float)v.z());
_shader->setUniform3f("viewVec", camPos);
_visOrder.clear();
for (int i = 0; i < _model->blockCount(); i++) {
RegularGridDataBlock &dataBlock = _model->volumeDataBlock(i, (*_ps)["timestep"].toInt() - 1, (*_ps)["compIdx"].toInt());
float dist = (dataBlock.boxCenter() - camPos).length();
_visOrder.append(std::pair<float, int>(dist, i));
}
std::sort(_visOrder.begin(), _visOrder.end());
for (int i = 0; i < _visOrder.size(); i++)
qDebug("%d: (%f, %d)", i, _visOrder[i].first, _visOrder[i].second);
}
vaEngine::Vector cubiverse::VoxelEditor::checkCollision(float p_x, float p_y, float p_z) {
float matrix[16];
glGetFloatv( GL_MODELVIEW_MATRIX, matrix );
vaEngine::Vector camera( matrix[2], matrix[6], matrix[10] );
camera = camera / 2.0f;
vaEngine::Vector camPos(p_x, p_y, p_z);
cout << "X:" << camera[0] << " Y:" << camera[1] << " Z:" << camera[2] << endl;
if(p_y > 20 && camera.y > 0) {
bool run = true;
while(camPos.y > 20 && run) {
camPos = camPos - camera;
for(int mesh = 0; mesh < meshs.size(); mesh++) {
if(hasVoxel(camPos.x,camPos.y,camPos.z, mesh)) run = false;
}
}
cout << "FOUND POS:" << camPos.x << " : " << camPos.z << endl;
return camPos;
}
}
void Camera::aim()
{
// Get the window size
int width, height;
glfwGetWindowSize(&width, &height);
// Make sure that height is non-zero to avoid division by zero
height = height < 1 ? 1 : height;
glViewport(0, 0, width, height);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Set up the projection matrix
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
// Window aspect (assumes square pixels)
float aspectRatio = (float)width / (float)height;
// Set perspective view
gluPerspective(mFov, aspectRatio, mNearPlane, mFarPlane);
vec3 camPos(mLookX + mRadius * std::cos(DEG2RAD(mHead)) * std::cos(DEG2RAD(mPitch)),
mLookY + mRadius * std::sin(DEG2RAD(mHead)),
mLookZ + mRadius * std::cos(DEG2RAD(mHead)) * std::sin(DEG2RAD(mPitch)));
mForward = vec3(mLookX - camPos.x, mLookY - camPos.y, mLookZ - camPos.z);
mForward = glm::normalize(mForward);
vec3 up = vec3(0.0f, (std::cos(DEG2RAD(mHead)) > 0.0f) ? 1.0f : -1.0f, 0.0f);
mSide = glm::cross(mForward, up);
mUp = glm::cross(mSide, mForward);
// Set up modelview matrix
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(camPos.x, camPos.y, camPos.z,
mLookX, mLookY, mLookZ,
up.x, up.y, up.z);
}
void SeleneDev::CGame::Tick(float deltaTime)
{
Selene::CVirtualFileSystem* pVfs = GetSupervisor()->GetVFS();
Selene::CGraphics* pGraphics = GetSupervisor()->GetGraphics();
// test
//
m_ElapsedTime += deltaTime;
float period = 8.0f;
float phaseTime = fmodf(m_ElapsedTime, period);
float phase = phaseTime / period;
float radius = 10.0f;
float pi = 3.141592f;
Selene::Vector3 camPos(13.0f, 10.0, 4.0f);
Selene::Vector3 lookAt(-1.5f, 1.0f, -5.0f);
Selene::Vector3 camUp(0.0f, 1.0f, 0.0f);
camPos.m_X = cosf(pi * 2.0f * phase) * radius + lookAt.m_X;
camPos.m_Z = sinf(pi * 2.0f * phase) * radius + lookAt.m_Z;
//pGraphics->GetActiveCamera()->Look(camPos, lookAt, camUp);
m_pTestNode->Update(deltaTime);
m_pFpsNode->Update(deltaTime);
m_pHudNode->Update(deltaTime);
}
bool CD3DGraphics11::RenderTextureLightingShader(D3DXMATRIX world, int numIndices, CMaterialDX11 mat)
{
CGameScene& scene = SYSTEM::PROJECT::GetScene();
CGameobjectList l = scene.GetLightList();
int n_l = l.GetNumObjects();
CCamera* c = scene.GetCamera(0);
if(!c)
return false;
D3DXVECTOR4 amb(mat.GetAmbientColor().r,mat.GetAmbientColor().g,mat.GetAmbientColor().b,mat.GetAmbientColor().a);
D3DXVECTOR4 spec(mat.GetSpecularColor().r,mat.GetSpecularColor().g,mat.GetSpecularColor().b,mat.GetSpecularColor().a);
D3DXVECTOR3 camPos(c->GetTransform().GetTranslation().x,c->GetTransform().GetTranslation().y,
c->GetTransform().GetTranslation().z);
if (mat.GetDiffuseTexture())
return m_textureLightingShader.Render(*this, numIndices, m_matrices.view, world, m_matrices.projection, mat.GetDiffuseTexture(),
l, n_l, amb, camPos, spec, 64.0f);
else
return m_textureLightingShader.Render(*this, numIndices, m_matrices.view, world, m_matrices.projection, m_pDefaultTexture,
l, n_l, amb, camPos, spec, 64.0f);
return true;
}
bool CameraMan::frameRenderingQueued(const Ogre::FrameEvent& evt)
{
// update accelerations
Ogre::Vector3 accel = calculateAccelerations();
// if accelerating, try to reach top speed in a certain time
Ogre::Real topSpeed = mFastMove ? mTopSpeed * 2 : mTopSpeed;
double y_tmp = mVelocity.y;
if (accel.squaredLength() != 0)
{
accel.normalise();
mVelocity += accel * topSpeed * evt.timeSinceLastFrame * 10;
}
// if not accelerating, try to stop in a certain time
else
{
mVelocity -= mVelocity * evt.timeSinceLastFrame * 10;
}
mVelocity.y = y_tmp;
// vertical movement
if (mJump) mVelocity.y = jumpSpeed;
mJump = false;
mVelocity.y -= gravityAccel * evt.timeSinceLastFrame;
Ogre::Real tooSmall = std::numeric_limits<Ogre::Real>::epsilon();
y_tmp = mVelocity.y;
mVelocity.y = 0;
// keep camera velocity below top speed and above epsilon
if (mVelocity.squaredLength() > topSpeed * topSpeed)
{
mVelocity.normalise();
mVelocity *= topSpeed;
}
else if (mVelocity.squaredLength() < tooSmall * tooSmall)
{
mVelocity = Ogre::Vector3::ZERO;
}
mVelocity.y = y_tmp;
// terrain handling, raycast each unit direction
PolyVox::RaycastResult resultXH;
PolyVox::RaycastResult resultXL;
PolyVox::RaycastResult resultY;
PolyVox::RaycastResult resultZH;
PolyVox::RaycastResult resultZL;
double width = 0.5;
PolyVox::Vector3DFloat cameraPos( mCamera->getPosition().x, mCamera->getPosition().y, mCamera->getPosition().z );
PolyVox::Vector3DFloat cameraPosH( mCamera->getPosition().x, mCamera->getPosition().y + width, mCamera->getPosition().z );
PolyVox::Vector3DFloat cameraPosL( mCamera->getPosition().x, mCamera->getPosition().y - charHeight + width, mCamera->getPosition().z );
if( mVelocity.x > 0 )
{
mTerrain->raycast( cameraPosH, PolyVox::Vector3DFloat( width, 0, 0), resultXH);
mTerrain->raycast( cameraPosL, PolyVox::Vector3DFloat( width, 0, 0), resultXL);
}
else if( mVelocity.x < 0 )
{
mTerrain->raycast( cameraPosH, PolyVox::Vector3DFloat(-width, 0, 0), resultXH);
mTerrain->raycast( cameraPosL, PolyVox::Vector3DFloat(-width, 0, 0), resultXL);
}
else
{
resultXH.foundIntersection = false;
resultXL.foundIntersection = false;
}
if( mVelocity.y > 0 )
{
mTerrain->raycast( cameraPosH, PolyVox::Vector3DFloat( 0, width, 0), resultY);
}
else if( mVelocity.y < 0 )
{
mTerrain->raycast( cameraPosL, PolyVox::Vector3DFloat( 0,-width, 0), resultY);
}
else
{
resultY.foundIntersection = false;
}
if( mVelocity.z > 0 )
{
mTerrain->raycast( cameraPosH, PolyVox::Vector3DFloat( 0, 0, width), resultZH);
mTerrain->raycast( cameraPosL, PolyVox::Vector3DFloat( 0, 0, width), resultZL);
}
else if( mVelocity.z < 0 )
{
mTerrain->raycast( cameraPosH, PolyVox::Vector3DFloat( 0, 0,-width), resultZH);
mTerrain->raycast( cameraPosL, PolyVox::Vector3DFloat( 0, 0,-width), resultZL);
}
else
{
resultZH.foundIntersection = false;
resultZL.foundIntersection = false;
}
Ogre::Vector3 camPos( mCamera->getPosition() );
// handle horizontal movement
if( resultXH.foundIntersection || resultXL.foundIntersection )
{
mVelocity.x = 0;
if( resultXH.foundIntersection )
{
camPos.x = resultXH.previousVoxel.getX();
}
else
{
camPos.x = resultXL.previousVoxel.getX();
}
}
if( resultZH.foundIntersection || resultZL.foundIntersection )
{
mVelocity.z = 0;
if( resultZH.foundIntersection )
{
camPos.z = resultZH.previousVoxel.getZ();
}
else
{
camPos.z = resultZL.previousVoxel.getZ();
}
}
// handle ground/ceiling
if( resultY.foundIntersection )
{
camPos.y = resultY.previousVoxel.getY();
if( mVelocity.y < 0 )
{
camPos.y += charHeight - 1.0;
}
mVelocity.y = 0;
}
else
{
if( mVelocity.y < -fallSpeedMax )
{
mVelocity.y = -fallSpeedMax;
}
}
// set new position, not in a voxel
mCamera->setPosition( camPos );
if (mVelocity != Ogre::Vector3::ZERO) mCamera->move(mVelocity * evt.timeSinceLastFrame);
return true;
}
void Mesh::Draw(Shader shader, bool drawFBO)
{
// Bind appropriate textures
GLuint diffuseNr = 1;
GLuint specularNr = 1;
GLuint reflectionNr = 1;
//设备坐标系->纹理坐标系
glm::mat4 biasMatrix(
0.5, 0.0, 0.0, 0.0,
0.0, 0.5, 0.0, 0.0,
0.0, 0.0, 0.5, 0.0,
0.5, 0.5, 0.5, 1.0
);
for (GLuint i = 0; i < this->textures.size(); i++)
//int i = 1;
{
//float w = this->cam_pos[this->textures[i].id].at<float>(3, 0);
glm::vec3 imageNorm(this->img_norm[this->textures[i].id].at<float>(0, 0), this->img_norm[this->textures[i].id].at<float>(1, 0),
this->img_norm[this->textures[i].id].at<float>(2, 0));
glm::vec3 camPos(this->cam_pos[this->textures[i].id].at<float>(0, 0), this->cam_pos[this->textures[i].id].at<float>(1, 0),
this->cam_pos[this->textures[i].id].at<float>(2, 0));
//cv::Mat VM = this->viewMatrices[i] * this->modelMatrix;// .inv() * this->modelMatrix.inv();
cv::Mat VM = this->viewMatrices[i].inv() * this->modelMatrix.inv();
cv::Mat vVM(VM, cv::Rect(3, 0, 1, 4));
glm::vec3 cam(vVM.at<float>(0, 0), vVM.at<float>(1, 0), vVM.at<float>(2, 0));
// Compute the MVP matrix from the light's point of view
glm::mat4 depthProjectionMatrix = glm::perspective<float>(45.0f, 1.0f, near_plane, far_plane);
glm::vec3 origin(0, 0, 0);
glm::mat4 depthViewMatrix = glm::lookAt(camPos, origin, glm::vec3(0, 1, 0));//glm::lookAt(lightInvDir, glm::vec3(0, 0, 0), glm::vec3(0, 1, 0));
glm::mat4 depthModelMatrix;
depthModelMatrix = glm::scale(depthModelMatrix, glm::vec3(0.01f, 0.01f, 0.01f)); // It's a bit too big for our scene, so scale it down
glm::mat4 depthMVP = depthProjectionMatrix * depthViewMatrix * depthModelMatrix;
if (drawFBO == false)
{
glActiveTexture(GL_TEXTURE0 + i); // Active proper texture unit before binding
// Retrieve texture number (the N in diffuse_textureN)
stringstream ss;
string number;
string name = this->textures[i].type;
if (name == "texture_diffuse")
ss << diffuseNr++; // Transfer GLuint to stream
number = ss.str();
// Now set the sampler to the correct texture unit
glUniform1i(glGetUniformLocation(shader.Program, ( name).c_str()), i);
glUniform3fv(glGetUniformLocation(shader.Program, "imgNorm" ), 1, glm::value_ptr(imageNorm));
glUniform3fv(glGetUniformLocation(shader.Program, "camPos"), 1, glm::value_ptr(camPos));
// And finally bind the texture
glBindTexture(GL_TEXTURE_2D, i+1);
glm::mat4 depthBiasMVP = biasMatrix*depthMVP;
glUniformMatrix4fv(glGetUniformLocation(shader.Program, "DepthBiasMVP"), 1, GL_FALSE, glm::value_ptr(depthBiasMVP));
//zhongyao
int d = this->textures.size() + i;
glActiveTexture(GL_TEXTURE0 + d);
glBindTexture(GL_TEXTURE_2D, in.depthTexture[i]);
glUniform1i(glGetUniformLocation(shader.Program, "shadowMap"), d);
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK); // Cull back-facing triangles -> draw only front-facing triangles
glBindVertexArray(this->VAO[textures[i].id]);
glDrawElements(GL_TRIANGLES, this->indices4draw[textures[i].id].size(), GL_UNSIGNED_INT, 0);
glCullFace(GL_FRONT); // Cull back-facing triangles -> draw only front-facing triangles
glBindVertexArray(0);
}
else
{
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, in.depthMapFBO[i]);
// Clear the screen
glClear(GL_DEPTH_BUFFER_BIT);
glm::mat4 shadowProj = glm::perspective(90.0f, 1.0f, 1.0f, 25.0f);
glm::mat4 depthMVPD = shadowProj *
glm::lookAt(camPos, camPos + glm::vec3(1.0, 0.0, 0.0), glm::vec3(0.0, -1.0, 0.0));
glUniformMatrix4fv(glGetUniformLocation(shader.Program, "depthMVP"), 1, GL_FALSE, glm::value_ptr(depthMVPD));
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK); // Cull back-facing triangles -> draw only front-facing triangles
glBindVertexArray(this->VAO[textures[i].id]);
glDrawElements(GL_TRIANGLES, this->indices4draw[textures[i].id].size(), GL_UNSIGNED_INT, 0);
glCullFace(GL_FRONT);
glBindVertexArray(0);
}
glActiveTexture(GL_TEXTURE0);
}
}
//--------------------------------------------------------------------------------------------------
std::vector<PointData> generateImagePoints( const cv::Mat& cameraWorldMtx, const cv::Mat& cameraCalibMtx,
int32_t imageWidth, int32_t imageHeight, const cv::Mat& chessboardPoseMtx )
{
std::vector<PointData> points;
points.reserve( imageWidth*imageHeight );
cv::Mat camAxisX( cameraWorldMtx, cv::Rect( 0, 0, 1, 3 ) );
cv::Mat camAxisY( cameraWorldMtx, cv::Rect( 1, 0, 1, 3 ) );
cv::Mat camAxisZ( cameraWorldMtx, cv::Rect( 2, 0, 1, 3 ) );
cv::Mat camPos( cameraWorldMtx, cv::Rect( 3, 0, 1, 3 ) );
cv::Mat chessboardAxisX( chessboardPoseMtx, cv::Rect( 0, 0, 1, 3 ) );
cv::Mat chessboardAxisY( chessboardPoseMtx, cv::Rect( 1, 0, 1, 3 ) );
cv::Mat chessboardAxisZ( chessboardPoseMtx, cv::Rect( 2, 0, 1, 3 ) );
cv::Mat chessboardPos( chessboardPoseMtx, cv::Rect( 3, 0, 1, 3 ) );
double chessboardPlaneDist = cv::Mat( chessboardPos.t()*chessboardAxisZ ).at<double>( 0 );
// Used to calculate plane intersection
double intersectionConstant = chessboardPlaneDist - cv::Mat(camPos.t()*chessboardAxisZ).at<double>( 0 );
// Generate the image points using very simple ray tracing
for ( int32_t y = 0; y < imageHeight; y++ )
{
for ( int32_t x = 0; x < imageWidth; x++ )
{
double imagePlaneX = (x - cameraCalibMtx.at<double>( 0, 2 )) / cameraCalibMtx.at<double>( 0, 0 );
double imagePlaneY = (y - cameraCalibMtx.at<double>( 1, 2 )) / cameraCalibMtx.at<double>( 1, 1 );
cv::Mat rayDir = camAxisZ + imagePlaneX*camAxisX + imagePlaneY*camAxisY;
double cosOfAngleToChessboard = cv::Mat(rayDir.t()*chessboardAxisZ).at<double>( 0 );
if ( 0.0 != cosOfAngleToChessboard )
{
double distanceToBoard = intersectionConstant/cosOfAngleToChessboard;
if ( distanceToBoard > 0.0 )
{
cv::Mat intersectionPos = camPos + rayDir*distanceToBoard;
cv::Mat fromCentreVec = intersectionPos - chessboardPos;
double chessX = cv::Mat(chessboardAxisX.t()*fromCentreVec).at<double>( 0 );
double chessY = cv::Mat(chessboardAxisY.t()*fromCentreVec).at<double>( 0 );
ePixelColour pixelColour = ePC_None;
if ( gbDrawCircles )
{
double boardU = chessX + 0.5*CHESSBOARD_TOTAL_WIDTH;
double boardV = chessY + 0.5*CHESSBOARD_TOTAL_HEIGHT;
pixelColour = getCircleboardPixelColour( boardU, boardV );
}
else
{
double u = chessX/CHESSBOARD_TOTAL_WIDTH + 0.5;
double v = chessY/CHESSBOARD_TOTAL_HEIGHT + 0.5;
pixelColour = getChessboardPixelColour( u, v );
}
if ( ePC_None != pixelColour )
{
PointData pointData;
pointData.mPixelX = x;
pointData.mPixelY = y;
pointData.mWorldX = intersectionPos.at<double>( 0 );
pointData.mWorldY = intersectionPos.at<double>( 1 );
pointData.mWorldZ = intersectionPos.at<double>( 2 );
pointData.mPixelColour = pixelColour;
points.push_back( pointData );
}
}
}
}
}
return points;
}
void ScatterSky::_render( ObjectRenderInst *ri, SceneRenderState *state, BaseMatInstance *overrideMat )
{
if ( overrideMat || (!mShader && !_initShader()) )
return;
GFXTransformSaver saver;
if ( mVB.isNull() || mPrimBuffer.isNull() )
_initVBIB();
GFX->setShader( mShader );
GFX->setShaderConstBuffer( mShaderConsts );
Point4F sphereRadii( mSphereOuterRadius, mSphereOuterRadius * mSphereOuterRadius,
mSphereInnerRadius, mSphereInnerRadius * mSphereInnerRadius );
Point4F scatteringCoeffs( mRayleighScattering * mSkyBrightness, mRayleighScattering4PI,
mMieScattering * mSkyBrightness, mMieScattering4PI );
Point4F invWavelength( 1.0f / mWavelength4[0],
1.0f / mWavelength4[1],
1.0f / mWavelength4[2], 1.0f );
Point3F camPos( 0, 0, smViewerHeight );
Point4F miscParams( camPos.z, camPos.z * camPos.z, mScale, mScale / mRayleighScaleDepth );
Frustum frust = state->getFrustum();
frust.setFarDist( smEarthRadius + smAtmosphereRadius );
MatrixF proj( true );
frust.getProjectionMatrix( &proj );
Point3F camPos2 = state->getCameraPosition();
MatrixF xfm(true);
xfm.setPosition(camPos2);//-Point3F( 0, 0, 200000.0f));
GFX->multWorld(xfm);
MatrixF xform(proj);//GFX->getProjectionMatrix());
xform *= GFX->getViewMatrix();
xform *= GFX->getWorldMatrix();
mShaderConsts->setSafe( mModelViewProjSC, xform );
mShaderConsts->setSafe( mMiscSC, miscParams );
mShaderConsts->setSafe( mSphereRadiiSC, sphereRadii );
mShaderConsts->setSafe( mScatteringCoefficientsSC, scatteringCoeffs );
mShaderConsts->setSafe( mCamPosSC, camPos );
mShaderConsts->setSafe( mLightDirSC, mLightDir );
mShaderConsts->setSafe( mSunDirSC, mSunDir );
mShaderConsts->setSafe( mNightColorSC, mNightColor );
mShaderConsts->setSafe( mInverseWavelengthSC, invWavelength );
mShaderConsts->setSafe( mNightInterpolantAndExposureSC, Point2F( mExposure, mNightInterpolant ) );
mShaderConsts->setSafe( mColorizeSC, mColorize*mColorizeAmt );
if ( GFXDevice::getWireframe() )
{
GFXStateBlockDesc desc( mStateBlock->getDesc() );
desc.setFillModeWireframe();
GFX->setStateBlockByDesc( desc );
}
else
GFX->setStateBlock( mStateBlock );
if ( mUseNightCubemap && mNightCubemap )
{
mShaderConsts->setSafe( mUseCubemapSC, 1.0f );
if ( !mNightCubemap->mCubemap )
mNightCubemap->createMap();
GFX->setCubeTexture( 0, mNightCubemap->mCubemap );
}
else
{
GFX->setCubeTexture( 0, NULL );
mShaderConsts->setSafe( mUseCubemapSC, 0.0f );
}
GFX->setPrimitiveBuffer( mPrimBuffer );
GFX->setVertexBuffer( mVB );
GFX->drawIndexedPrimitive( GFXTriangleList, 0, 0, mVertCount, 0, mPrimCount );
}
bool operator()(Chunk* c1, Chunk* c2) {
glm::vec3 chunkPos1(c1->GetPos().x,c1->GetPos().y,c1->GetPos().z);
glm::vec3 chunkPos2(c2->GetPos().x,c2->GetPos().y,c2->GetPos().z);
glm::vec3 camPos((int)floor(Engine::m_pCameraInstance->GetPos().x / Chunk::CHUNKSIZEX), (int)floor(Engine::m_pCameraInstance->GetPos().y / Chunk::CHUNKSIZEY), (int)floor(Engine::m_pCameraInstance->GetPos().z / Chunk::CHUNKSIZEZ));
return glm::distance(chunkPos1, camPos) < glm::distance(chunkPos2, camPos);
}