Hi,
I was trying to setup an application configuration with a HMD as output (Oculus). I wasn't able to find an appropriate camera decorator to apply the head orientation similar to OSGProjectionCameraDecorator.
So I would propose to add an additional decorator, e.g. HeadTrackedStereoDecorator (HTSD), between StereoCameraDecorator (SCD) and ProjectionCameraDecorator (PCD), moving the user field from PCD to HTSD.
I've attached a sample implementation. Let me know your thoughts.
Thanks,
Michael
/*---------------------------------------------------------------------------*\ * OpenSG * * * * * * Copyright (C) 2000-2013 by the OpenSG Forum * * * * www.opensg.org * * * * contact: d...@opensg.org, gerrit.v...@vossg.org, carsten_neum...@gmx.net * * * \*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*\ * License * * * * This library is free software; you can redistribute it and/or modify it * * under the terms of the GNU Library General Public License as published * * by the Free Software Foundation, version 2. * * * * This library is distributed in the hope that it will be useful, but * * WITHOUT ANY WARRANTY; without even the implied warranty of * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * * Library General Public License for more details. * * * * You should have received a copy of the GNU Library General Public * * License along with this library; if not, write to the Free Software * * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. * * * \*---------------------------------------------------------------------------*/ /*---------------------------------------------------------------------------*\ * Changes * * * * * * * * * * * * * \*---------------------------------------------------------------------------*/
//---------------------------------------------------------------------------
// Includes
//---------------------------------------------------------------------------
#include <cstdlib>
#include <cstdio>
#define OSG_COMPILEEXTLIB
#include "OpenSG/OSGConfig.h"
#include "OpenSG/OSGNode.h"
#include "OSGHeadTrackedStereoCameraDecorator.h"
OSG_BEGIN_NAMESPACE
// Documentation for this class is emitted in the
// HeadTrackedStereoCameraDecoratorBase.cpp file.
// To modify it, please change the .fcd file (OSGHeadTrackedStereoCameraDecorator.fcd) and
// regenerate the base file.
/***************************************************************************\
* Class variables *
\***************************************************************************/
/***************************************************************************\
* Class methods *
\***************************************************************************/
void HeadTrackedStereoCameraDecorator::initMethod(InitPhase ePhase)
{
Inherited::initMethod(ePhase);
if(ePhase == TypeObject::SystemPost)
{
}
}
/***************************************************************************\
* Instance methods *
\***************************************************************************/
/*-------------------------------------------------------------------------*\
- private -
\*-------------------------------------------------------------------------*/
/*----------------------- constructors & destructors ----------------------*/
HeadTrackedStereoCameraDecorator::HeadTrackedStereoCameraDecorator(void) :
Inherited()
{
}
HeadTrackedStereoCameraDecorator::HeadTrackedStereoCameraDecorator(const HeadTrackedStereoCameraDecorator &source) :
Inherited(source)
{
}
HeadTrackedStereoCameraDecorator::~HeadTrackedStereoCameraDecorator(void)
{
}
/*----------------------------- class specific ----------------------------*/
void HeadTrackedStereoCameraDecorator::changed(ConstFieldMaskArg whichField,
UInt32 origin,
BitVector details)
{
Inherited::changed(whichField, origin, details);
}
void HeadTrackedStereoCameraDecorator::dump( UInt32 ,
const BitVector ) const
{
SLOG << "Dump HeadTrackedStereoCameraDecorator NI" << std::endl;
}
void HeadTrackedStereoCameraDecorator::getViewing(Matrix &result,
UInt32 OSG_CHECK_ARG(width ),
UInt32 OSG_CHECK_ARG(height))
{
Node *pUser = getUser();
if(pUser == NULL)
{
FWARNING(("HeadTrackedStereoCameraDecorator::getViewing: no user!\n"));
Camera *pCamera = getDecoratee();
if(pCamera == NULL)
{
result.setIdentity();
return;
}
pCamera->getBeacon()->getToWorld(result);
result.invert();
}
else
{
pUser->getToWorld(result);
result.invert();
}
}
OSG_END_NAMESPACE
OSGHeadTrackedStereoCameraDecorator.fcd
Description: Binary data
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