/*!
Applies the view transform to the modelview matrix depending on the eye:
eye=-1 for left, eye=1 for right
*/
void SLCamera::setView(const SLEye eye)
{
SLSceneView* sv = SLScene::current->activeSV();
if (eye == centerEye)
{ stateGL->modelViewMatrix.identity();
stateGL->modelViewMatrix.multiply(_vm);
}
else // stereo viewing
{
if (_projection == stereoSideBySideD)
{
// half interpupilar distance
_eyeSeparation = sv->oculus()->eyeSeparation();
SLfloat halfIPD = (SLfloat)eye * _eyeSeparation * -0.5f;
// get the oculus orientation
SLMat4f rotation(sv->oculus()->orientation().toMat4());
SLMat4f vmEye(SLMat4f(halfIPD, 0.0f, 0.f) * rotation * _vm);
stateGL->modelViewMatrix = vmEye;
stateGL->viewMatrix = vmEye;
}
else
{
// Get central camera vectors eye, lookAt, lookUp out of the view matrix vm
SLVec3f EYE, LA, LU, LR;
_vm.lookAt(&EYE, &LA, &LU, &LR);
// Shorten LR to half of the eye dist (eye=-1 for left, eye=1 for right)
LR *= _eyeSeparation * 0.5f * (SLfloat)eye;
// Set the OpenGL view matrix for the left eye
SLMat4f vmEye;
vmEye.lookAt(EYE+LR, EYE + _focalDist*LA+LR, LU);
stateGL->modelViewMatrix = vmEye;
stateGL->viewMatrix = vmEye;
}
}
}
/*!
Applies the view transform to the modelview matrix depending on the eye:
eye=-1 for left, eye=1 for right
*/
void SLCamera::setView(SLSceneView* sv, const SLEye eye)
{
SLScene* s = SLScene::current;
SLMat4f vm = updateAndGetWMI();
if (eye == centerEye)
{ _stateGL->modelViewMatrix.identity();
_stateGL->viewMatrix.setMatrix(vm);
}
else // stereo viewing
{
if (_projection == stereoSideBySideD)
{
// half interpupilar disqtance
//_eyeSeparation = s->oculus()->interpupillaryDistance(); update old rift code
SLfloat halfIPD = (SLfloat)eye * _eyeSeparation * -0.5f;
SLMat4f trackingPos;
if (_useDeviceRot)
{
// get the oculus or mobile device orientation
SLQuat4f rotation;
if (s->oculus()->isConnected())
{
rotation = s->oculus()->orientation(eye);
trackingPos.translate(-s->oculus()->position(eye));
}
else rotation = sv->deviceRotation();
SLfloat rotX, rotY, rotZ;
rotation.toMat4().toEulerAnglesZYX(rotZ, rotY, rotX);
//SL_LOG("rotx : %3.1f, roty: %3.1f, rotz: %3.1f\n", rotX*SL_RAD2DEG, rotY*SL_RAD2DEG, rotZ*SL_RAD2DEG);
SLVec3f viewAdjust = s->oculus()->viewAdjust(eye) * _unitScaling;
SLMat4f vmEye(SLMat4f(viewAdjust.x, viewAdjust.y, viewAdjust.z) * rotation.inverted().toMat4() * trackingPos * vm);
_stateGL->modelViewMatrix = vmEye;
_stateGL->viewMatrix = vmEye;
}
else
{
SLMat4f vmEye(SLMat4f(halfIPD, 0.0f, 0.f) * vm);
_stateGL->modelViewMatrix = vmEye;
_stateGL->viewMatrix = vmEye;
}
}
else
{
// Get central camera vectors eye, lookAt, lookUp out of the view matrix vm
SLVec3f EYE, LA, LU, LR;
vm.lookAt(&EYE, &LA, &LU, &LR);
// Shorten LR to half of the eye dist (eye=-1 for left, eye=1 for right)
LR *= _eyeSeparation * 0.5f * (SLfloat)eye;
// Set the OpenGL view matrix for the left eye
SLMat4f vmEye;
vmEye.lookAt(EYE+LR, EYE + _focalDist*LA+LR, LU);
_stateGL->modelViewMatrix = vmEye;
_stateGL->viewMatrix = vmEye;
}
}
}
