The additive shaders that Principia uses for orbit lines cause them to shine brightly when used with TUFX's bloom and HDR

[Clayell]

This is the root cause of KSPModStewards/TUFX#34

HDR on, Bloom Intensity Max (although easily visible at the default of 3)

HDR off, Bloom Intensity Max

HDR on, Bloom Intensity off

HDR off, Bloom Intensity off

HDR on, Bloom Intensity Max, Principia orbit lines max (increases with tolerance and steps)

Relevant discussion:
(https://discord.com/channels/319857228905447436/480397772248580098/1462874640450977856)

(https://discord.com/channels/319857228905447436/480397772248580098/1502449809145991298)

Principia/ksp_plugin_adapter/gl_lines.cs

Line 94 in 3590dff

UnityEngine.Shader.Find("KSP/Particles/Additive"));