I have simple hair shader and clear scene
http://ybex.com/index.php?c=start&m=pic&key=8pbmnx3diygtqn4clewl1q51pj1qra30u246sm1p
If camera directed from the side one (and no lights behind the model) - everything looks good.
http://ybex.com/index.php?c=start&m=pic&key=m2ems1wolm1q16ehdi6ml5jb4da1flxp3owt6qhd
If any light source is behind the model - I have overexposure.
http://ybex.com/index.php?c=start&m=pic&key=59sztl5qfe7kgtmngm4239hbs82zh7u4y0dbl9x5
I have tried different options, tried to use hairs from UE4 sample (and other materials schemes), but current problems is still present. Backlit option doesn’t works.
Who know how decide this issue?