void LLDrawable::updateDistance(LLCamera& camera, bool force_update)
{
if (LLViewerCamera::sCurCameraID != LLViewerCamera::CAMERA_WORLD)
{
llwarns << "Attempted to update distance for non-world camera." << llendl;
return;
}
//switch LOD with the spatial group to avoid artifacts
//LLSpatialGroup* sg = getSpatialGroup();
LLVector3 pos;
//if (!sg || sg->changeLOD())
{
LLVOVolume* volume = getVOVolume();
if (volume)
{
if (getSpatialGroup())
{
pos.set(getPositionGroup().getF32ptr());
}
else
{
pos = getPositionAgent();
}
if (isState(LLDrawable::HAS_ALPHA))
{
for (S32 i = 0; i < getNumFaces(); i++)
{
LLFace* facep = getFace(i);
if (force_update || facep->getPoolType() == LLDrawPool::POOL_ALPHA)
{
LLVector4a box;
box.setSub(facep->mExtents[1], facep->mExtents[0]);
box.mul(0.25f);
LLVector3 v = (facep->mCenterLocal-camera.getOrigin());
const LLVector3& at = camera.getAtAxis();
for (U32 j = 0; j < 3; j++)
{
v.mV[j] -= box[j] * at.mV[j];
}
facep->mDistance = v * camera.getAtAxis();
}
}
}
}
else
{
pos = LLVector3(getPositionGroup().getF32ptr());
}
pos -= camera.getOrigin();
mDistanceWRTCamera = llround(pos.magVec(), 0.01f);
mVObjp->updateLOD();
}
}
void LLDrawable::updateDistance(LLCamera& camera, bool force_update)
{
//switch LOD with the spatial group to avoid artifacts
//LLSpatialGroup* sg = getSpatialGroup();
LLVector3 pos;
//if (!sg || sg->changeLOD())
{
LLVOVolume* volume = getVOVolume();
if (volume)
{
volume->updateRelativeXform();
pos = volume->getRelativeXform().getTranslation();
if (isStatic())
{
pos += volume->getRegion()->getOriginAgent();
}
if (isState(LLDrawable::HAS_ALPHA))
{
for (S32 i = 0; i < getNumFaces(); i++)
{
LLFace* facep = getFace(i);
if (facep->getPoolType() == LLDrawPool::POOL_ALPHA)
{
LLVector3 box = (facep->mExtents[1] - facep->mExtents[0]) * 0.25f;
LLVector3 v = (facep->mCenterLocal-camera.getOrigin());
const LLVector3& at = camera.getAtAxis();
for (U32 j = 0; j < 3; j++)
{
v.mV[j] -= box.mV[j] * at.mV[j];
}
facep->mDistance = v * camera.getAtAxis();
}
}
}
}
else
{
pos = LLVector3(getPositionGroup());
}
pos -= camera.getOrigin();
mDistanceWRTCamera = llround(pos.magVec(), 0.01f);
mVObjp->updateLOD();
}
}
LLCamera LLSpatialBridge::transformCamera(LLCamera& camera)
{
LLCamera ret = camera;
LLXformMatrix* mat = mDrawable->getXform();
LLVector3 center = LLVector3(0,0,0) * mat->getWorldMatrix();
LLQuaternion rotation = LLQuaternion(mat->getWorldMatrix());
LLVector3 delta = ret.getOrigin() - center;
LLQuaternion rot = ~mat->getRotation();
delta *= rot;
LLVector3 lookAt = ret.getAtAxis();
LLVector3 up_axis = ret.getUpAxis();
LLVector3 left_axis = ret.getLeftAxis();
lookAt *= rot;
up_axis *= rot;
left_axis *= rot;
if (!delta.isFinite())
{
delta.clearVec();
}
ret.setOrigin(delta);
ret.setAxes(lookAt, left_axis, up_axis);
return ret;
}
LLCamera LLSpatialBridge::transformCamera(LLCamera& camera)
{
LLCamera ret = camera;
LLXformMatrix* mat = mDrawable->getXform();
const LLVector4a& center = mat->getWorldMatrix().getRow<3>();
LLQuaternion2 invRot;
invRot.setConjugate( LLQuaternion2(mat->getRotation()) );
LLVector4a delta;
delta.load3(ret.getOrigin().mV);
delta.sub(center);
LLVector4a lookAt;
lookAt.load3(ret.getAtAxis().mV);
LLVector4a up_axis;
up_axis.load3(ret.getUpAxis().mV);
LLVector4a left_axis;
left_axis.load3(ret.getLeftAxis().mV);
delta.setRotated(invRot, delta);
lookAt.setRotated(invRot, lookAt);
up_axis.setRotated(invRot, up_axis);
left_axis.setRotated(invRot, left_axis);
if (!delta.isFinite3())
{
delta.clear();
}
ret.setOrigin(LLVector3(delta.getF32ptr()));
ret.setAxes(LLVector3(lookAt.getF32ptr()), LLVector3(left_axis.getF32ptr()), LLVector3(up_axis.getF32ptr()));
return ret;
}
//static
void LLViewerCamera::updateFrustumPlanes(LLCamera& camera, BOOL ortho, BOOL zflip, BOOL no_hacks)
{
GLint* viewport = (GLint*) gGLViewport;
GLdouble* model = gGLModelView;
GLdouble* proj = gGLProjection;
GLdouble objX,objY,objZ;
LLVector3 frust[8];
if (no_hacks)
{
gluUnProject(viewport[0],viewport[1],0,model,proj,viewport,&objX,&objY,&objZ);
frust[0].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0]+viewport[2],viewport[1],0,model,proj,viewport,&objX,&objY,&objZ);
frust[1].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0]+viewport[2],viewport[1]+viewport[3],0,model,proj,viewport,&objX,&objY,&objZ);
frust[2].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0],viewport[1]+viewport[3],0,model,proj,viewport,&objX,&objY,&objZ);
frust[3].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0],viewport[1],1,model,proj,viewport,&objX,&objY,&objZ);
frust[4].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0]+viewport[2],viewport[1],1,model,proj,viewport,&objX,&objY,&objZ);
frust[5].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0]+viewport[2],viewport[1]+viewport[3],1,model,proj,viewport,&objX,&objY,&objZ);
frust[6].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0],viewport[1]+viewport[3],1,model,proj,viewport,&objX,&objY,&objZ);
frust[7].setVec((F32)objX,(F32)objY,(F32)objZ);
}
else if (zflip)
{
gluUnProject(viewport[0],viewport[1]+viewport[3],0,model,proj,viewport,&objX,&objY,&objZ);
frust[0].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0]+viewport[2],viewport[1]+viewport[3],0,model,proj,viewport,&objX,&objY,&objZ);
frust[1].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0]+viewport[2],viewport[1],0,model,proj,viewport,&objX,&objY,&objZ);
frust[2].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0],viewport[1],0,model,proj,viewport,&objX,&objY,&objZ);
frust[3].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0],viewport[1]+viewport[3],1,model,proj,viewport,&objX,&objY,&objZ);
frust[4].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0]+viewport[2],viewport[1]+viewport[3],1,model,proj,viewport,&objX,&objY,&objZ);
frust[5].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0]+viewport[2],viewport[1],1,model,proj,viewport,&objX,&objY,&objZ);
frust[6].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0],viewport[1],1,model,proj,viewport,&objX,&objY,&objZ);
frust[7].setVec((F32)objX,(F32)objY,(F32)objZ);
for (U32 i = 0; i < 4; i++)
{
frust[i+4] = frust[i+4]-frust[i];
frust[i+4].normVec();
frust[i+4] = frust[i] + frust[i+4]*camera.getFar();
}
}
else
{
gluUnProject(viewport[0],viewport[1],0,model,proj,viewport,&objX,&objY,&objZ);
frust[0].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0]+viewport[2],viewport[1],0,model,proj,viewport,&objX,&objY,&objZ);
frust[1].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0]+viewport[2],viewport[1]+viewport[3],0,model,proj,viewport,&objX,&objY,&objZ);
frust[2].setVec((F32)objX,(F32)objY,(F32)objZ);
gluUnProject(viewport[0],viewport[1]+viewport[3],0,model,proj,viewport,&objX,&objY,&objZ);
frust[3].setVec((F32)objX,(F32)objY,(F32)objZ);
if (ortho)
{
LLVector3 far_shift = camera.getAtAxis()*camera.getFar()*2.f;
for (U32 i = 0; i < 4; i++)
{
frust[i+4] = frust[i] + far_shift;
}
}
else
{
for (U32 i = 0; i < 4; i++)
{
LLVector3 vec = frust[i] - camera.getOrigin();
vec.normVec();
frust[i+4] = camera.getOrigin() + vec*camera.getFar();
}
}
}
camera.calcAgentFrustumPlanes(frust);
}
//static
void LLViewerCamera::updateFrustumPlanes(LLCamera& camera, BOOL ortho, BOOL zflip, BOOL no_hacks)
{
LLVector3 frust[8];
LLRect view_port(gGLViewport[0],gGLViewport[1]+gGLViewport[3],gGLViewport[0]+gGLViewport[2],gGLViewport[1]);
if (no_hacks)
{
gGL.unprojectf(LLVector3(view_port.mLeft,view_port.mBottom,0.f),gGLModelView,gGLProjection,view_port,frust[0]);
gGL.unprojectf(LLVector3(view_port.mRight,view_port.mBottom,0.f),gGLModelView,gGLProjection,view_port,frust[1]);
gGL.unprojectf(LLVector3(view_port.mRight,view_port.mTop,0.f),gGLModelView,gGLProjection,view_port,frust[2]);
gGL.unprojectf(LLVector3(view_port.mLeft,view_port.mTop,0.f),gGLModelView,gGLProjection,view_port,frust[3]);
gGL.unprojectf(LLVector3(view_port.mLeft,view_port.mBottom,1.f),gGLModelView,gGLProjection,view_port,frust[4]);
gGL.unprojectf(LLVector3(view_port.mRight,view_port.mBottom,1.f),gGLModelView,gGLProjection,view_port,frust[5]);
gGL.unprojectf(LLVector3(view_port.mRight,view_port.mTop,1.f),gGLModelView,gGLProjection,view_port,frust[6]);
gGL.unprojectf(LLVector3(view_port.mLeft,view_port.mTop,1.f),gGLModelView,gGLProjection,view_port,frust[7]);
}
else if (zflip)
{
gGL.unprojectf(LLVector3(view_port.mLeft,view_port.mTop,0.f),gGLModelView,gGLProjection,view_port,frust[0]);
gGL.unprojectf(LLVector3(view_port.mRight,view_port.mTop,0.f),gGLModelView,gGLProjection,view_port,frust[1]);
gGL.unprojectf(LLVector3(view_port.mRight,view_port.mBottom,0.f),gGLModelView,gGLProjection,view_port,frust[2]);
gGL.unprojectf(LLVector3(view_port.mLeft,view_port.mBottom,0.f),gGLModelView,gGLProjection,view_port,frust[3]);
gGL.unprojectf(LLVector3(view_port.mLeft,view_port.mTop,1.f),gGLModelView,gGLProjection,view_port,frust[4]);
gGL.unprojectf(LLVector3(view_port.mRight,view_port.mTop,1.f),gGLModelView,gGLProjection,view_port,frust[5]);
gGL.unprojectf(LLVector3(view_port.mRight,view_port.mBottom,1.f),gGLModelView,gGLProjection,view_port,frust[6]);
gGL.unprojectf(LLVector3(view_port.mLeft,view_port.mBottom,1.f),gGLModelView,gGLProjection,view_port,frust[7]);
for (U32 i = 0; i < 4; i++)
{
frust[i+4] = frust[i+4]-frust[i];
frust[i+4].normVec();
frust[i+4] = frust[i] + frust[i+4]*camera.getFar();
}
}
else
{
gGL.unprojectf(LLVector3(view_port.mLeft,view_port.mBottom,0.f),gGLModelView,gGLProjection,view_port,frust[0]);
gGL.unprojectf(LLVector3(view_port.mRight,view_port.mBottom,0.f),gGLModelView,gGLProjection,view_port,frust[1]);
gGL.unprojectf(LLVector3(view_port.mRight,view_port.mTop,0.f),gGLModelView,gGLProjection,view_port,frust[2]);
gGL.unprojectf(LLVector3(view_port.mLeft,view_port.mTop,0.f),gGLModelView,gGLProjection,view_port,frust[3]);
if (ortho)
{
LLVector3 far_shift = camera.getAtAxis()*camera.getFar()*2.f;
for (U32 i = 0; i < 4; i++)
{
frust[i+4] = frust[i] + far_shift;
}
}
else
{
for (U32 i = 0; i < 4; i++)
{
LLVector3 vec = frust[i] - camera.getOrigin();
vec.normVec();
frust[i+4] = camera.getOrigin() + vec*camera.getFar();
}
}
}
camera.calcAgentFrustumPlanes(frust);
}