activate line shader
activate line shader

Helioviewer-Project/JHelioviewer-SWHV,Helioviewer-Project/JHelioviewer-SWHV,Helioviewer-Project/JHelioviewer-SWHV,Helioviewer-Project/JHelioviewer-SWHV,Helioviewer-Project/JHelioviewer-SWHV