Method SetupPlanetsAsShadowCaster

trinity/Eve/EveSpaceScene.cpp:3923–3974

}

void EveSpaceScene::SetupPlanetsAsShadowCaster( CcpMath::Sphere* planets, size_t maxPlanets )
{
	Vector3 sunPosition = { 0, 0, 0 };
	if( m_sunBall )
	{
		m_sunBall->GetValueAt( &sunPosition, m_updateContext.GetTime() );
	}

	std::vector<PlanetInfo> visiblePlanets;
	for( EvePlanet* obj : m_planets )
	{
		float pixelSize = obj->GetEstimatedPixelDiameter();
		if( pixelSize > 50.0f )
		{
			// we don't want the sun to be a shadow caster
			if( obj->GetTranslationCurve() != nullptr && obj->GetTranslationCurve() == m_sunBall )
			{
				continue;
			}
			if( obj->GetTranslationCurve() && m_sunBall )
			{
				// Check if the planet is behind the sun. The check is for an exotic case when a large
				// planet is close enogh to the sun and the player is at the opposite side of the sun.
				// In this case we can't treat the sun as an infinely far light source.
				Vector3 planetPosition = { 0, 0, 0 };
				obj->GetTranslationCurve()->GetValueAt( &planetPosition, m_updateContext.GetTime() );

				if( Dot( planetPosition - sunPosition, Vector3( 0, 0, 0 ) - sunPosition ) < 0 )
				{
					continue;
				}
			}
			Vector3 planetWorldPos = obj->GetWorldPosition();
			float radius = obj->GetRadius();
			PlanetInfo p = { { Vector4( planetWorldPos, radius ) }, pixelSize };
			visiblePlanets.emplace_back( p );
		}
	}

	// sort the visiblePlanet list by the pixelSize so we get the 2 largest ones
	std::sort( visiblePlanets.begin(), visiblePlanets.end(), []( const PlanetInfo& a, const PlanetInfo& b ) {
		return a.pixelSize > b.pixelSize;
	} );

	// cut unnecessary objects from the list, or if we only have 1 planet the other index is just filled with 0 values
	visiblePlanets.resize( maxPlanets );

	for( size_t i = 0; i < maxPlanets; i++ )
	{
		planets[i] = CcpMath::Sphere( visiblePlanets[i].sphere );
	}
}

void EveSpaceScene::SetupPlanetsAsShadowCaster( Tr2RenderContext& renderContext )
{