New REM client: REM-Client 87de00df, 64-bit (crystal graveyard main menu scene with volumetric clouds)

- Intro6_Base: ice crystal spires in an asteroid ring round a distant
  star, Nomad ships passing through (Scripts\Intro\intro_crystals.thn,
  music_iw_space).
- DATA\INTERFACE\intro_nebula.ini: the scene's two volumetric cloud banks,
  drawn by RemGfx over the room scene.

DATA/INTERFACE/intro_nebula.ini

@@ -0,0 +1,47 @@
+; REM: volumetric clouds in main menu scenes (one of the intro scenes picked at random at start-up).
+; The renderer draws each [Nebula] as a lit volume over its base's room scene; without volumetric
+; nebulae (NebulaVolume off, HDR off) the scene shows without them. Positions are in the scene's
+; THN coordinates (m; the camera at the origin looks down -z).
+
+; the crystal graveyard (Scripts\Intro\intro_crystals.thn): a cloud bank behind and round the spires
+[Nebula]
+base = Intro6_Base
+pos = 1700, 300, -6500
+; yaw, pitch, roll (degrees) and the ellipsoid's radii (m)
+rotate = 0, 0, 18
+size = 2600, 900, 1400
+; fog colour (0..1) and how far one sees inside (m: less is denser)
+fog_color = 0.02, 0.04, 0.1
+fog_distance = 6000
+; cloud puffs: radius (m), drift, colour a / b, ambient light, the star's light through them, opacity
+puff_radius = 380
+drift = 1
+puff_color_a = 0.16, 0.26, 0.55
+puff_color_b = 0.04, 0.08, 0.22
+ambient = 0.02, 0.04, 0.1
+burn_through = 0.45
+max_alpha = 0.4
+; lightning: seconds between flashes, flash length (s), intensity, and its hue
+lightning = 12, 0.4, 1
+lightning_color = 0.6, 0.8, 1
+; the star it is lit from (Sun_1 in the THN) and its reach (m)
+sun = 3791, 766, -9000, 60000
+
+; a thinner bank drifting in front, lower left
+[Nebula]
+base = Intro6_Base
+pos = -500, -700, -3400
+rotate = 30, 0, -10
+size = 1200, 400, 700
+fog_color = 0.02, 0.035, 0.08
+fog_distance = 7000
+puff_radius = 260
+drift = 1.5
+puff_color_a = 0.14, 0.22, 0.48
+puff_color_b = 0.03, 0.07, 0.2
+ambient = 0.02, 0.03, 0.08
+burn_through = 0.5
+max_alpha = 0.3
+lightning = 30, 0.3, 0.6
+lightning_color = 0.6, 0.8, 1
+sun = 3791, 766, -9000, 60000

DATA/UNIVERSE/SYSTEMS/INTRO/BASES/ROOMS/intro6_crystals.ini

@@ -0,0 +1,5 @@
+[Room_Info]
+scene = ambient, Scripts\Intro\intro_crystals.thn
+
+[Room_Sound]
+music = music_iw_space

DATA/UNIVERSE/SYSTEMS/INTRO/BASES/intro6_base.ini

@@ -0,0 +1,7 @@
+[BaseInfo]
+nickname = intro6_base
+start_room = Cityscape
+
+[Room]
+nickname = Cityscape
+file = Universe\Systems\Intro\Bases\Rooms\intro6_crystals.ini

DATA/UNIVERSE/universe.ini

@@ -1672,6 +1672,13 @@ strid_name = 196766
 file = Universe\Systems\Intro\Bases\Intro5_Base.ini
 BGCS_base_run_by = W02bF35
 
+[Base]
+nickname = Intro6_Base
+system = Li01
+strid_name = 196766
+file = Universe\Systems\Intro\Bases\Intro6_Base.ini
+BGCS_base_run_by = W02bF35
+
 [Base]
 nickname = Ew06_01_Base
 system = Ew06