private void UpdateCastingShadowLight()
{
int index = LightTypeComboBox.SelectedIndex;
if (index == -1 || _shadowSpotLight == null)
{
return;
}
if (index == 0) // Spot light
{
// Enable shadow casting for spot light
_shadowSpotLight.SetDXAttribute(DXAttributeType.IsCastingShadow, _isShadowEnabled);
_directionalLight.SetDXAttribute(DXAttributeType.IsCastingShadow, false);
// Use only _shadowSpotLight
if (_lightsModel3DGroup.Children.Contains(_directionalLight))
{
_lightsModel3DGroup.Children.Remove(_directionalLight);
}
if (!_lightsModel3DGroup.Children.Contains(_shadowSpotLight))
{
_lightsModel3DGroup.Children.Add(_shadowSpotLight);
}
}
else // Directional light
{
// Enable shadow casting for directional light
_directionalLight.SetDXAttribute(DXAttributeType.IsCastingShadow, _isShadowEnabled);
_shadowSpotLight.SetDXAttribute(DXAttributeType.IsCastingShadow, false);
// Use only _directionalLight
if (_lightsModel3DGroup.Children.Contains(_shadowSpotLight))
{
_lightsModel3DGroup.Children.Remove(_shadowSpotLight);
}
if (!_lightsModel3DGroup.Children.Contains(_directionalLight))
{
_lightsModel3DGroup.Children.Add(_directionalLight);
}
}
}
