//! renders the node.
void COctTreeSceneNode::render()
{
video::IVideoDriver* driver = SceneManager->getVideoDriver();
if (vertexType == -1 || !driver)
return;
ICameraSceneNode* camera = SceneManager->getActiveCamera();
if (!camera)
return;
bool isTransparentPass =
SceneManager->getSceneNodeRenderPass() == scene::ESNRP_TRANSPARENT;
++PassCount;
driver->setTransform(video::ETS_WORLD, AbsoluteTransformation);
SViewFrustum frust = *camera->getViewFrustum();
//transform the frustum to the current absolute transformation
core::matrix4 invTrans(AbsoluteTransformation);
invTrans.makeInverse();
/*
//frust.transform(invTrans);
//const core::aabbox3d<float> &box = frust.getBoundingBox();
*/
frust.transform(invTrans);
switch(vertexType)
{
case video::EVT_STANDARD:
{
//StdOctTree->calculatePolys(box);
StdOctTree->calculatePolys(frust);
OctTree<video::S3DVertex>::SIndexData* d = StdOctTree->getIndexData();
for (u32 i=0; i<Materials.size(); ++i)
{
if ( 0 == d[i].CurrentSize )
continue;
video::IMaterialRenderer* rnd = driver->getMaterialRenderer(Materials[i].MaterialType);
bool transparent = (rnd && rnd->isTransparent());
// only render transparent buffer if this is the transparent render pass
// and solid only in solid pass
if (transparent == isTransparentPass)
{
driver->setMaterial(Materials[i]);
driver->drawIndexedTriangleList(
&StdMeshes[i].Vertices[0], StdMeshes[i].Vertices.size(),
d[i].Indices, d[i].CurrentSize / 3);
}
}
// for debug purposes only
if ( DebugDataVisible && !Materials.empty() && PassCount==1)
{
const core::aabbox3d<float> &box = frust.getBoundingBox();
core::array< core::aabbox3d<f32> > boxes;
video::SMaterial m;
m.Lighting = false;
driver->setMaterial(m);
if ( DebugDataVisible & scene::EDS_BBOX_BUFFERS )
{
StdOctTree->renderBoundingBoxes(box, boxes);
for (u32 b=0; b<boxes.size(); ++b)
driver->draw3DBox(boxes[b], video::SColor(0,255,255,255));
}
if ( DebugDataVisible & scene::EDS_BBOX )
driver->draw3DBox(Box,video::SColor(0,255,0,0));
}
break;
}
case video::EVT_2TCOORDS:
{
//LightMapOctTree->calculatePolys(box);
LightMapOctTree->calculatePolys(frust);
OctTree<video::S3DVertex2TCoords>::SIndexData* d = LightMapOctTree->getIndexData();
for (u32 i=0; i<Materials.size(); ++i)
{
if ( 0 == d[i].CurrentSize )
continue;
video::IMaterialRenderer* rnd = driver->getMaterialRenderer(Materials[i].MaterialType);
bool transparent = (rnd && rnd->isTransparent());
// only render transparent buffer if this is the transparent render pass
// and solid only in solid pass
if (transparent == isTransparentPass)
{
driver->setMaterial(Materials[i]);
driver->drawIndexedTriangleList(
&LightMapMeshes[i].Vertices[0], LightMapMeshes[i].Vertices.size(),
d[i].Indices, d[i].CurrentSize / 3);
}
}
// for debug purposes only
if (DebugDataVisible && !Materials.empty() && PassCount==1)
{
const core::aabbox3d<float> &box = frust.getBoundingBox();
core::array< core::aabbox3d<f32> > boxes;
video::SMaterial m;
m.Lighting = false;
driver->setMaterial(m);
if ( DebugDataVisible & scene::EDS_BBOX_BUFFERS )
{
LightMapOctTree->renderBoundingBoxes(box, boxes);
for (u32 b=0; b<boxes.size(); ++b)
driver->draw3DBox(boxes[b], video::SColor(0,255,255,255));
}
if ( DebugDataVisible & scene::EDS_BBOX )
driver->draw3DBox(Box,video::SColor(0,255,0,0));
}
}
break;
}
}
void CSceneNodeAnimatorCameraFPS::animateNode(ISceneNode* node, UINT32 timeMs)
{
if (!node || node->getType() != ESNT_CAMERA)
return;
ICameraSceneNode* camera = static_cast<ICameraSceneNode*>(node);
if (firstUpdate)
{
camera->updateAbsolutePosition();
if (CursorControl)
{
CursorControl->setPosition(0.5f, 0.5f);
CursorPos = CenterCursor = CursorControl->getRelativePosition();
}
LastAnimationTime = timeMs;
firstUpdate = false;
}
// If the camera isn't the active camera, and receiving input, then don't process it.
if (!camera->isInputReceiverEnabled())
{
firstInput = true;
return;
}
if (firstInput)
{
allKeysUp();
firstInput = false;
}
ISceneManager * smgr = camera->getSceneManager();
if (smgr && smgr->getActiveCamera() != camera)
return;
// get time
FLOAT32 timeDiff = (FLOAT32)(timeMs - LastAnimationTime);
LastAnimationTime = timeMs;
// update position
Vector3 pos = camera->getPosition();
// Update rotation
Vector3 target = (camera->getTarget() - camera->getAbsolutePosition());
Vector3 relativeRotation = target.getHorizontalAngle();
if (CursorControl)
{
if (CursorPos != CenterCursor)
{
relativeRotation.y -= (0.5f - CursorPos.x) * RotateSpeed;
relativeRotation.x -= (0.5f - CursorPos.y) * RotateSpeed * MouseYDirection;
// X < MaxVerticalAngle or X > 360-MaxVerticalAngle
if (relativeRotation.x > MaxVerticalAngle * 2 &&
relativeRotation.x < 360.0f - MaxVerticalAngle)
{
relativeRotation.x = 360.0f - MaxVerticalAngle;
}
else
if (relativeRotation.x > MaxVerticalAngle &&
relativeRotation.x < 360.0f - MaxVerticalAngle)
{
relativeRotation.x = MaxVerticalAngle;
}
// Do the fix as normal, special case below
// reset cursor position to the centre of the window.
CursorControl->setPosition(0.5f, 0.5f);
CenterCursor = CursorControl->getRelativePosition();
// needed to avoid problems when the event receiver is disabled
CursorPos = CenterCursor;
}
// Special case, mouse is whipped outside of window before it can update.
IVideoDriver* driver = smgr->getVideoDriver();
Vector2 mousepos(UINT32(CursorControl->getPosition().x), UINT32(CursorControl->getPosition().y));
rect<UINT32> screenRect(0, 0, driver->getScreenSize().Width, driver->getScreenSize().Height);
// Only if we are moving outside quickly.
bool reset = !screenRect.isPointInside(mousepos);
if (reset)
{
// Force a reset.
CursorControl->setPosition(0.5f, 0.5f);
CenterCursor = CursorControl->getRelativePosition();
CursorPos = CenterCursor;
}
}
// set target
target.set(0, 0, Math::_max<Real>(1.f, pos.length()));
Vector3 movedir = target;
Matrix4 mat;
mat.setRotationDegrees(Vector3(relativeRotation.x, relativeRotation.y, 0));
//mat.transformVect(target);
target = mat.transformAffine(target);
if (NoVerticalMovement)
{
mat.setRotationDegrees(Vector3(0, relativeRotation.y, 0));
//mat.transformVect(movedir);
target = mat.transformAffine(target);
}
else
{
movedir = target;
}
movedir.normalise();
if (CursorKeys[EKA_MOVE_FORWARD])
pos += movedir * timeDiff * MoveSpeed;
if (CursorKeys[EKA_MOVE_BACKWARD])
pos -= movedir * timeDiff * MoveSpeed;
// strafing
Vector3 strafevect = target;
strafevect = strafevect.crossProduct(camera->getUpVector());
if (NoVerticalMovement)
strafevect.y = 0.0f;
strafevect.normalise();
if (CursorKeys[EKA_STRAFE_LEFT])
pos += strafevect * timeDiff * MoveSpeed;
if (CursorKeys[EKA_STRAFE_RIGHT])
pos -= strafevect * timeDiff * MoveSpeed;
// For jumping, we find the collision response animator attached to our camera
// and if it's not falling, we tell it to jump.
if (CursorKeys[EKA_JUMP_UP])
{
const ISceneNodeAnimatorList& animators = camera->getAnimators();
ISceneNodeAnimatorList::const_iterator it = animators.begin();
while (it != animators.end())
{
if (ESNAT_COLLISION_RESPONSE == (*it)->getType())
{
ISceneNodeAnimatorCollisionResponse * collisionResponse =
static_cast<ISceneNodeAnimatorCollisionResponse *>(*it);
if (!collisionResponse->isFalling())
collisionResponse->jump(JumpSpeed);
}
it++;
}
}
// write translation
camera->setPosition(pos);
// write right target
target += pos;
camera->setTarget(target);
}
//! render
void CParticleSystemSceneNode::render()
{
video::IVideoDriver* driver = SceneManager->getVideoDriver();
ICameraSceneNode* camera = SceneManager->getActiveCamera();
if (!camera || !driver)
return;
#if 0
// calculate vectors for letting particles look to camera
core::vector3df view(camera->getTarget() - camera->getAbsolutePosition());
view.normalize();
core::vector3df horizontal = camera->getUpVector().crossProduct(view);
horizontal.normalize();
horizontal *= 0.5f * ParticleSize.Width;
core::vector3df vertical = horizontal.crossProduct(view);
vertical.normalize();
vertical *= 0.5f * ParticleSize.Height;
view *= -1.0f;
#else
const core::matrix4 &m = camera->getViewFrustum()->Matrices [ video::ETS_VIEW ];
f32 f;
f = 0.5f * ParticleSize.Width;
const core::vector3df horizontal ( m[0] * f, m[4] * f, m[8] * f );
f = -0.5f * ParticleSize.Height;
const core::vector3df vertical ( m[1] * f, m[5] * f, m[9] * f );
const core::vector3df view ( -m[2], -m[6] , -m[10] );
#endif
// reallocate arrays, if they are too small
reallocateBuffers();
// create particle vertex data
s32 idx = 0;
for (u32 i=0; i<Particles.size(); ++i)
{
const SParticle& particle = Particles[i];
Buffer.Vertices[0+idx].Pos = particle.pos + horizontal + vertical;
Buffer.Vertices[0+idx].Color = particle.color;
Buffer.Vertices[0+idx].Normal = view;
Buffer.Vertices[1+idx].Pos = particle.pos + horizontal - vertical;
Buffer.Vertices[1+idx].Color = particle.color;
Buffer.Vertices[1+idx].Normal = view;
Buffer.Vertices[2+idx].Pos = particle.pos - horizontal - vertical;
Buffer.Vertices[2+idx].Color = particle.color;
Buffer.Vertices[2+idx].Normal = view;
Buffer.Vertices[3+idx].Pos = particle.pos - horizontal + vertical;
Buffer.Vertices[3+idx].Color = particle.color;
Buffer.Vertices[3+idx].Normal = view;
idx +=4;
}
// render all
core::matrix4 mat;
if (!ParticlesAreGlobal)
mat.setTranslation(AbsoluteTransformation.getTranslation());
driver->setTransform(video::ETS_WORLD, mat);
driver->setMaterial(Buffer.Material);
driver->drawVertexPrimitiveList(Buffer.getVertices(), Particles.size()*4,
Buffer.getIndices(), Particles.size()*2, video::EVT_STANDARD, EPT_TRIANGLES);
// for debug purposes only:
if ( DebugDataVisible & scene::EDS_BBOX )
{
driver->setTransform(video::ETS_WORLD, AbsoluteTransformation);
video::SMaterial deb_m;
deb_m.Lighting = false;
driver->setMaterial(deb_m);
driver->draw3DBox(Buffer.BoundingBox, video::SColor(0,255,255,255));
}
}
//! render
void CBillboardSceneNode::render()
{
video::IVideoDriver* driver = SceneManager->getVideoDriver();
ICameraSceneNode* camera = SceneManager->getActiveCamera();
if (!camera || !driver)
return;
// make billboard look to camera
core::vector3df pos = getAbsolutePosition();
core::vector3df campos = camera->getAbsolutePosition();
core::vector3df target = camera->getTarget();
core::vector3df up = camera->getUpVector();
core::vector3df view = target - campos;
view.normalize();
core::vector3df horizontal = up.crossProduct(view);
if ( horizontal.getLength() == 0 )
{
horizontal.set(up.Y,up.X,up.Z);
}
horizontal.normalize();
core::vector3df topHorizontal = horizontal * 0.5f * TopEdgeWidth;
horizontal *= 0.5f * Size.Width;
// pointing down!
core::vector3df vertical = horizontal.crossProduct(view);
vertical.normalize();
vertical *= 0.5f * Size.Height;
view *= -1.0f;
for (s32 i=0; i<4; ++i)
vertices[i].Normal = view;
/* Vertices are:
2--1
|\ |
| \|
3--0
*/
vertices[0].Pos = pos + horizontal + vertical;
vertices[1].Pos = pos + topHorizontal - vertical;
vertices[2].Pos = pos - topHorizontal - vertical;
vertices[3].Pos = pos - horizontal + vertical;
// draw
if (DebugDataVisible & scene::EDS_BBOX)
{
driver->setTransform(video::ETS_WORLD, AbsoluteTransformation);
video::SMaterial m;
m.Lighting = false;
driver->setMaterial(m);
driver->draw3DBox(BBox, video::SColor(0,208,195,152));
}
driver->setTransform(video::ETS_WORLD, core::IdentityMatrix);
driver->setMaterial(Material);
driver->drawIndexedTriangleList(vertices, 4, indices, 2);
}
//! OnAnimate() is called just before rendering the whole scene.
void CSceneNodeAnimatorCameraMaya::animateNode(ISceneNode *node, u32 timeMs)
{
//Alt + LM = Rotate around camera pivot
//Alt + LM + MM = Dolly forth/back in view direction (speed % distance camera pivot - max distance to pivot)
//Alt + MM = Move on camera plane (Screen center is about the mouse pointer, depending on move speed)
if (!node || node->getType() != ESNT_CAMERA)
return;
ICameraSceneNode* camera = static_cast<ICameraSceneNode*>(node);
// If the camera isn't the active camera, and receiving input, then don't process it.
if (!camera->isInputReceiverEnabled())
return;
scene::ISceneManager * smgr = camera->getSceneManager();
if (smgr && smgr->getActiveCamera() != camera)
return;
if (OldCamera != camera)
{
LastCameraTarget = OldTarget = camera->getTarget();
OldCamera = camera;
}
else
{
OldTarget += camera->getTarget() - LastCameraTarget;
}
f32 nRotX = RotX;
f32 nRotY = RotY;
f32 nZoom = CurrentZoom;
if ( (isMouseKeyDown(0) && isMouseKeyDown(2)) || isMouseKeyDown(1) )
{
if (!Zooming)
{
ZoomStart = MousePos;
Zooming = true;
}
else
{
const f32 targetMinDistance = 0.1f;
nZoom += (ZoomStart.X - MousePos.X) * ZoomSpeed;
if (nZoom < targetMinDistance) // jox: fixed bug: bounce back when zooming to close
nZoom = targetMinDistance;
}
}
else if (Zooming)
{
const f32 old = CurrentZoom;
CurrentZoom = CurrentZoom + (ZoomStart.X - MousePos.X ) * ZoomSpeed;
nZoom = CurrentZoom;
if (nZoom < 0)
nZoom = CurrentZoom = old;
Zooming = false;
}
// Translation ---------------------------------
core::vector3df translate(OldTarget);
const core::vector3df upVector(camera->getUpVector());
const core::vector3df target = camera->getTarget();
core::vector3df pos = camera->getPosition();
core::vector3df tvectX = pos - target;
tvectX = tvectX.crossProduct(upVector);
tvectX.normalize();
const SViewFrustum* const va = camera->getViewFrustum();
core::vector3df tvectY = (va->getFarLeftDown() - va->getFarRightDown());
tvectY = tvectY.crossProduct(upVector.Y > 0 ? pos - target : target - pos);
tvectY.normalize();
if (isMouseKeyDown(2) && !Zooming)
{
if (!Translating)
{
TranslateStart = MousePos;
Translating = true;
}
else
{
translate += tvectX * (TranslateStart.X - MousePos.X)*TranslateSpeed +
tvectY * (TranslateStart.Y - MousePos.Y)*TranslateSpeed;
}
}
else if (Translating)
{
translate += tvectX * (TranslateStart.X - MousePos.X)*TranslateSpeed +
tvectY * (TranslateStart.Y - MousePos.Y)*TranslateSpeed;
OldTarget = translate;
Translating = false;
}
// Rotation ------------------------------------
if (isMouseKeyDown(0) && !Zooming)
{
if (!Rotating)
{
RotateStart = MousePos;
Rotating = true;
nRotX = RotX;
nRotY = RotY;
}
else
{
nRotX += (RotateStart.X - MousePos.X) * RotateSpeed;
nRotY += (RotateStart.Y - MousePos.Y) * RotateSpeed;
}
}
else if (Rotating)
{
RotX += (RotateStart.X - MousePos.X) * RotateSpeed;
RotY += (RotateStart.Y - MousePos.Y) * RotateSpeed;
nRotX = RotX;
nRotY = RotY;
Rotating = false;
}
// Set pos ------------------------------------
pos = translate;
pos.X += nZoom;
pos.rotateXYBy(nRotY, translate);
pos.rotateXZBy(-nRotX, translate);
camera->setPosition(pos);
camera->setTarget(translate);
// Rotation Error ----------------------------
// jox: fixed bug: jitter when rotating to the top and bottom of y
pos.set(0,1,0);
pos.rotateXYBy(-nRotY);
pos.rotateXZBy(-nRotX+180.f);
camera->setUpVector(pos);
LastCameraTarget = camera->getTarget();
}
void CSceneNodeAnimatorCameraFPS::animateNode(ISceneNode* node, u32 timeMs)
{
if (node->getType() != ESNT_CAMERA)
return;
ICameraSceneNode* camera = static_cast<ICameraSceneNode*>(node);
if (firstUpdate)
{
camera->updateAbsolutePosition();
if (CursorControl && camera)
{
CursorControl->setPosition(0.5f, 0.5f);
CursorPos = CenterCursor = CursorControl->getRelativePosition();
}
LastAnimationTime = timeMs;
firstUpdate = false;
}
// get time
f32 timeDiff = (f32) ( timeMs - LastAnimationTime );
LastAnimationTime = timeMs;
// update position
core::vector3df pos = camera->getPosition();
// Update rotation
core::vector3df target = (camera->getTarget() - camera->getAbsolutePosition());
core::vector3df relativeRotation = target.getHorizontalAngle();
if (CursorControl)
{
if (CursorPos != CenterCursor)
{
relativeRotation.Y -= (0.5f - CursorPos.X) * RotateSpeed;
relativeRotation.X -= (0.5f - CursorPos.Y) * RotateSpeed;
// X < MaxVerticalAngle or X > 360-MaxVerticalAngle
if (relativeRotation.X > MaxVerticalAngle*2 &&
relativeRotation.X < 360.0f-MaxVerticalAngle)
{
relativeRotation.X = 360.0f-MaxVerticalAngle;
}
else
if (relativeRotation.X > MaxVerticalAngle &&
relativeRotation.X < 360.0f-MaxVerticalAngle)
{
relativeRotation.X = MaxVerticalAngle;
}
// reset cursor position
CursorControl->setPosition(0.5f, 0.5f);
CenterCursor = CursorControl->getRelativePosition();
// needed to avoid problems when the ecent receiver is
// disabled
CursorPos = CenterCursor;
}
}
// set target
target.set(0,0, core::max_(1.f, pos.getLength()));
core::vector3df movedir = target;
core::matrix4 mat;
mat.setRotationDegrees(core::vector3df(relativeRotation.X, relativeRotation.Y, 0));
mat.transformVect(target);
if (NoVerticalMovement)
{
mat.setRotationDegrees(core::vector3df(0, relativeRotation.Y, 0));
mat.transformVect(movedir);
}
else
{
movedir = target;
}
movedir.normalize();
if (CursorKeys[EKA_MOVE_FORWARD])
pos += movedir * timeDiff * MoveSpeed;
if (CursorKeys[EKA_MOVE_BACKWARD])
pos -= movedir * timeDiff * MoveSpeed;
// strafing
core::vector3df strafevect = target;
strafevect = strafevect.crossProduct(camera->getUpVector());
if (NoVerticalMovement)
strafevect.Y = 0.0f;
strafevect.normalize();
if (CursorKeys[EKA_STRAFE_LEFT])
pos += strafevect * timeDiff * MoveSpeed;
if (CursorKeys[EKA_STRAFE_RIGHT])
pos -= strafevect * timeDiff * MoveSpeed;
// For jumping, we find the collision response animator attached to our camera
// and if it's not falling, we tell it to jump.
if (CursorKeys[EKA_JUMP_UP])
{
const core::list<ISceneNodeAnimator*> & animators = camera->getAnimators();
core::list<ISceneNodeAnimator*>::ConstIterator it = animators.begin();
while(it != animators.end())
{
if(ESNAT_COLLISION_RESPONSE == (*it)->getType())
{
ISceneNodeAnimatorCollisionResponse * collisionResponse =
static_cast<ISceneNodeAnimatorCollisionResponse *>(*it);
if(!collisionResponse->isFalling())
collisionResponse->jump(JumpSpeed);
}
it++;
}
}
// write translation
camera->setPosition(pos);
// write right target
TargetVector = target;
target += pos;
camera->setTarget(target);
}
void CBillboardGroupSceneNode::updateBillboards()
{
ICameraSceneNode* camera = SceneManager->getActiveCamera();
if ( !camera )
return;
core::vector3df camPos = camera->getAbsolutePosition();
core::vector3df ref = core::vector3df(0,1,0);
camera->getAbsoluteTransformation().rotateVect(ref);
core::vector3df view, right, up;
bool farAway = false;
core::vector3df center = BoundingBox.getCenter();
AbsoluteTransformation.transformVect(center);
core::vector3df camDir = camPos - center;
if ( camDir.getLengthSQ() >= (FarDistance + Radius)*(FarDistance + Radius) )
{
farAway = true;
view = center - camPos;
view.normalize();
right = ref.crossProduct( view );
up = view.crossProduct( right );
}
core::vector3df rotatedCamDir = camDir;
AbsoluteTransformation.inverseRotateVect( rotatedCamDir );
if ( farAway && (rotatedCamDir - LastCamDir).getLengthSQ() < 1000.0f )
{
return;
}
LastCamDir = rotatedCamDir;
// Update the position of every billboard
for ( s32 i=0; i<Billboards.size(); i++ )
{
if ( !farAway )
{
core::vector3df pos = Billboards[i].Position;
AbsoluteTransformation.transformVect( pos );
view = pos - camPos;
view.normalize();
}
core::vector3df thisRight = right;
core::vector3df thisUp = up;
if ( Billboards[i].HasAxis )
{
core::vector3df axis = Billboards[i].Axis;
AbsoluteTransformation.rotateVect(axis);
thisRight = axis.crossProduct( view );
thisUp = axis;
}
else if ( !farAway )
{
thisRight = ref.crossProduct( view );
thisUp = view.crossProduct( thisRight );
}
f32 rollrad = Billboards[i].Roll * core::DEGTORAD;
f32 cos_roll = cos( rollrad );
f32 sin_roll = sin( rollrad );
core::vector3df a = cos_roll * thisRight + sin_roll * thisUp;
core::vector3df b = -sin_roll * thisRight + cos_roll * thisUp;
a *= Billboards[i].Size.Width / 2.0f;
b *= Billboards[i].Size.Height / 2.0f;
s32 vertexIndex = 4 * i; // 4 vertices per billboard
core::vector3df billPos = Billboards[i].Position;
AbsoluteTransformation.transformVect(billPos);
MeshBuffer.Vertices[vertexIndex ].Pos = billPos - a + b;
MeshBuffer.Vertices[vertexIndex+1].Pos = billPos + a + b;
MeshBuffer.Vertices[vertexIndex+2].Pos = billPos + a - b;
MeshBuffer.Vertices[vertexIndex+3].Pos = billPos - a - b;
}
}
