void PerspectiveSensor::configure()
{
float aspect = m_imageSize.x() / static_cast<float>(m_imageSize.y());
float recip = 1.f / (m_farClip - m_nearClip);
float cot = 1.f / std::tanf(degToRad(m_fov / 2.f));
Eigen::Matrix4f mat;
mat <<
cot, 0, 0, 0,
0, cot, 0, 0,
0, 0, m_farClip * recip, -m_nearClip * m_farClip * recip,
0, 0, 1, 0;
Transform perspective(mat);
Transform scale = Transform::createScale(Vector3f(0.5f, 0.5f * aspect, 1.f));
Transform shift = Transform::createTranslation(Vector3f(1.f, 1.f / aspect, 0.f));
m_sampleToCamera = (scale * shift * perspective).invert();
if (!m_filter)
{
m_filter = std::make_shared<GaussianFilter>(AttributeList());
m_filter->configure();
}
}
void StarSystem::beginElement( void *userData, const XML_Char *name, const XML_Char **atts )
{
( (StarSystem*) userData )->beginElement( name, AttributeList( atts ) );
}
AttributeList Convertor::getAttributeList() {
return(AttributeList());
}
