void ShapeVisitor_RestrictedPositionGetter::visit( Shape_Sphere& shape )
{
if ( ( mOriginalPosition - shape.getCenter() ).length() > shape.getRadius() ) {
// position outside
float radiusMin;
float radiusMax;
switch ( shape.getRestrictionPolicy() ) {
case Shape_Sphere::SURFACE:
radiusMin = shape.getRadius();
radiusMax = shape.getRadius();
break;
case Shape_Sphere::RANDOM_DISTANCE_FROM_CENTER:
radiusMin = 0;
radiusMax = shape.getRadius();
break;
default:
radiusMin = 0;
radiusMax = 0;
}
mRestrictedPosition = toSphere( shape.getCenter(), radiusMin, radiusMax, mOriginalPosition );
}
else {
// position in sphere - OK
mRestrictedPosition = mOriginalPosition;
}
}
void configure() {
SphericalCoordinates sun(m_sun);
sun.elevation *= m_stretch;
m_sunDir = toSphere(sun);
/* Solid angle covered by the sun */
m_theta = degToRad(SUN_APP_RADIUS * 0.5f);
m_solidAngle = 2 * M_PI * (1 - std::cos(m_theta));
m_radiance = computeSunRadiance(m_sun.elevation, m_turbidity) * m_scale;
}
void ShapeVisitor_RestrictedPositionGetter::visit( Shape_SphereSurface& shape )
{
mRestrictedPosition = toSphere( shape.getCenter(), shape.getRadius(), shape.getRadius(), mOriginalPosition );
}
