QVector<const AObject*> Flower::collideSphere( const AObject * exclude, const float & radius, QVector3D & center, QVector3D * normal )
{
QVector<const AObject*> collides = AObject::collideSphere( exclude, radius, center, normal );
float depth;
QVector3D tmpNormal;
if( !Sphere::intersectSphere( position(), boundingSphereRadius(), center, radius, &tmpNormal, &depth ) )
return collides; // return if we aren't even near the forest
for( QVector<QMatrix4x4>::iterator i = mInstances.begin(); i != mInstances.end(); ++i )
{
float treeScale = (*i).column(0).length();
QVector3D treeBottom = (*i).column(3).toVector3D() + (*i).mapVector( QVector3D(0,-10,0) );
QVector3D treeTop = (*i).column(3).toVector3D() + (*i).mapVector( QVector3D(0,60,0) );
if( Capsule::intersectSphere( treeBottom, treeTop, treeScale, center, radius/3, &tmpNormal, &depth ) )
{
collides.append( this );
center += tmpNormal * depth;
if( normal )
*normal += tmpNormal;
}
}
return collides;
}
///// zoomFit /////////////////////////////////////////////////////////////////
void GLView::zoomFit(const bool update)
/// Calculates zPos so that the scene fits in the current window
/// It uses the result of boundingSphereRadius, a pure virtual
{
///// determine the radius of the bounding sphere
maxRadius = boundingSphereRadius();
///// calculate the camera position
if(baseParameters.perspectiveProjection)
{
if(width() > height())
zPos = maxRadius/tan(fieldOfView)/1.5f;
else
zPos = maxRadius/tan(fieldOfView)/1.5f * static_cast<float>(height())/static_cast<float>(width());
if(zPos < 0.1f)
zPos = 0.1f;
}
else
{
zPos = 1.0f;
resizeGL(width(), height());
}
///// update the scene
updateFog(maxRadius);
if(update)
updateGL();
setModified();
}
QVector<const AObject*> Teapot::collideSphere( const AObject * exclude, const float & radius, QVector3D & center, QVector3D * normal ) const
{
QVector<const AObject*> collides = AObject::collideSphere( exclude, radius, center, normal );
float depth;
QVector3D tmpNormal(0,1,0);
/*
if( Sphere::intersectSphere( position(), boundingSphereRadius(), center, radius, &tmpNormal, &depth ) )
{
collides.append( this );
center += tmpNormal * depth;
if( normal )
*normal = tmpNormal;
}
*/
if( Capsule::intersectSphere( position(), position()+QVector3D(0,2,0), boundingSphereRadius()/2.0f, center, radius, &tmpNormal, &depth ) )
{
collides.append( this );
center += tmpNormal * depth;
if( normal )
*normal = tmpNormal;
}
return collides;
}
