Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Load Sky Preset...
SKY_PRESET
Parameter: Load Weather Preset...
SKY_WEATHERPRESET
Parameter: Time and Location
SKY_TIMEANDLOCATION
Parameter: Sky
SKY_PHYSICALSKYPAGE
Parameter: Sun
SKY_PHYSICAL_SUN_ENABLE
Parameter: Atmosphere
SKY_PHYSICAL_ATM_ENABLE
Parameter: Clouds
SKY_CLOUD_ENABLE
Parameter: Details
SKY_DETAILS
Parameter: Volumetric Clouds
SKY_VOL_CLOUDS_RENDER
Parameter: Fog
SKY_FOG_ENABLE
Parameter: Rainbow
SKY_RAINBOW_RENDER
Parameter: Sunbeams
SKY_BEAMS_ENABLE
Parameter: Sky Objects
SKY_OBJECTS
Parameter: Time
SKY_DATE_TIME
Parameter: Current Time
SKY_TIME_NOW
Parameter: Today
SKY_DATE_TODAY
Parameter: Animate Date
SKY_DATE_ANIMATE
Parameter: Animate Time
SKY_TIME_ANIMATE
Parameter: x
SKY_POS_CITY
Parameter: City
SKY_POS_CITY_COMBO
Parameter: Latitude
SKY_POS_LATITUDE
Parameter: Longitude
SKY_POS_LONGITUDE
Parameter: Time Zone
SKY_POS_TIMEZONE
Parameter: Daylight Saving
SKY_POS_DST_SETTINGS
Parameter: Time Zone Diff.
SKY_POS_TIME_ZONE
Parameter: DS Time Zone
SKY_POS_DST_TIME_ZONE
Parameter: Physical Sky
SKY_PHYSICAL_SKY_ENABLE
Parameter: Horizon Line
SKY_REAL_SKY_SKY_HORIZON
Parameter: Color Warmth
SKY_REAL_SKY_SKY_COLOR_WARMNESS
Parameter: Intensity
SKY_REAL_SKY_SKY_INTENSITY
Parameter: Night Intensity Ratio
SKY_REAL_SKY_SKY_INTENSITY_NIGHT
Parameter: Saturation Correction
SKY_REAL_SKY_SKY_SATURATION
Parameter: Hue Correction
SKY_REAL_SKY_SKY_HUE
Parameter: Gamma Correction
SKY_REAL_SKY_SKY_GAMMA
Parameter: As Seen Intensity
SKY_REAL_SKY_SKY_SEEN_INTENSITY
Parameter: Dithering
SKY_REAL_SKY_SKY_DITHER
Parameter: Turbidity
SKY_REAL_SKY_TURBIDITY
Parameter: Ozone (cm)
SKY_REAL_SKY_OZONE
Parameter: Custom Horizon
SKY_GENERAL_USER_HORIZON
Parameter: Max. Altitude
SKY_GENERAL_USER_HORIZON_MAX_ALT
Parameter: Color
SKY_GENERAL_USER_COLOR
Parameter: Atmosphere Strength
SKY_GENERAL_STRENGTH
Parameter: Effects Turbidity
SKY_GENERAL_MOISTURE
Parameter: Horizon Start
SKY_GENERAL_HORIZON_START
Parameter: Earth Radius (km)
SKY_GENERAL_EARTH_RADIUS
Parameter: Preview Color
SKY_REAL_SKY_SUN_COLOR
Parameter: Intensity
SKY_REAL_SKY_SUN_INTENSITY
Parameter: Saturation Correction
SKY_REAL_SKY_SUN_SATURATION
Parameter: Hue Correction
SKY_REAL_SKY_SUN_HUE
Parameter: Gamma Correction
SKY_REAL_SKY_SUN_GAMMA
Parameter: Size Ratio
SKY_REAL_SKY_SUN_SIZE_RATIO
Parameter: As Seen Intensity
SKY_REAL_SKY_SUN_SEEN_INTENSITY
Parameter: Custom Color
SKY_GENERAL_CHANGE_SUN_COL
Parameter: Color
SKY_GENERAL_SUN_COLOR
Parameter: Lensflares
SKY_GENERAL_LENSFLARES
Parameter: Glow Intensity
SKY_GENERAL_MAX_FLARE_GLOW
Parameter: Flare Intensity
SKY_GENERAL_MAX_FLARE_REFL
Parameter: Distance Scale
SKY_GENERAL_SUN_DIST_SCALE
Parameter: Custom Sun Object
SKY_OBJECT_SUN_OBJECT
Parameter: Shadow Type
SKY_REAL_SKY_SUN_SHADOW_TYPE
Parameter: Density
SKY_REAL_SKY_SUN_SHADOW_DENSITY
Parameter: Shadow Color
SKY_REAL_SKY_SUN_SHADOW_COLOR
Parameter: Transparency
SKY_REAL_SKY_SUN_SHADOW_TRANSPARENCY
Parameter: Shadow Accuracy
SKY_REAL_SKY_SUN_SAMPLING_QUALITY
Parameter: Minimum Samples
SKY_REAL_SKY_SUN_SAMPLING_SAMPLES_MIN
Parameter: Maximum Samples
SKY_REAL_SKY_SUN_SAMPLING_SAMPLES_MAX
Parameter: Intensity
SKY_REAL_SKY_ATM_INTENSITY
Parameter: Horizon Fade
SKY_REAL_SKY_ATM_HORIZON
Parameter: Saturation Correction
SKY_REAL_SKY_ATM_SATURATION
Parameter: Hue Correction
SKY_REAL_SKY_ATM_HUE
Parameter: Gamma Correction
SKY_REAL_SKY_ATM_GAMMA
Parameter: World Scale Ratio
SKY_REAL_SKY_ATM_SCALE_RATIO
Parameter: Dithering
SKY_REAL_SKY_ATM_DITHER
Parameter: Rolloff
SKY_CLOUD_ROLLOFF
Parameter: Cast Shadows
SKY_CLOUDS_SHADOW
Parameter: Layer 1
SKY_CLOUD_1_ACTIVE
Parameter: Layer 2
SKY_CLOUD_2_ACTIVE
Parameter: Layer 3
SKY_CLOUD_3_ACTIVE
Parameter: Layer 4
SKY_CLOUD_4_ACTIVE
Parameter: Layer 5
SKY_CLOUD_5_ACTIVE
Parameter: Layer 6
SKY_CLOUD_6_ACTIVE
Parameter: Noise 1
SKY_CLOUD_1_NOISE
Parameter: Color 1
SKY_CLOUD_1_COLOR
Parameter: Height 1
SKY_CLOUD_1_HEIGHT
Parameter: Density 1
SKY_CLOUD_1_DENSITY
Parameter: Coverage 1
SKY_CLOUD_1_COVERAGE
Parameter: Thickness 1
SKY_CLOUD_1_THICKNESS
Parameter: Transparency 1
SKY_CLOUD_1_TRANSPARENCY
Parameter: Save as Preset...
SKY_CLOUD_1_SAVE_PRESET
Parameter: Load Preset...
SKY_CLOUD_1_LOAD_PRESET
Parameter: Anim. Speed 1
SKY_CLOUD_1_SPEED
Parameter: Noise Offset 1
SKY_CLOUD_1_OFFSET
Parameter: Scale N-S 1
SKY_CLOUD_1_SCALE_NS
Parameter: Scale W-E 1
SKY_CLOUD_1_SCALE_WE
Parameter: Pos. N-S 1
SKY_CLOUD_1_MOVE_NS
Parameter: Pos. W-E 1
SKY_CLOUD_1_MOVE_WE
Parameter: Noise 2
SKY_CLOUD_2_NOISE
Parameter: Color 2
SKY_CLOUD_2_COLOR
Parameter: Height 2
SKY_CLOUD_2_HEIGHT
Parameter: Density 2
SKY_CLOUD_2_DENSITY
Parameter: Coverage 2
SKY_CLOUD_2_COVERAGE
Parameter: Thickness 2
SKY_CLOUD_2_THICKNESS
Parameter: Transparency 2
SKY_CLOUD_2_TRANSPARENCY
Parameter: Save as Preset...
SKY_CLOUD_2_SAVE_PRESET
Parameter: Load Preset...
SKY_CLOUD_2_LOAD_PRESET
Parameter: Anim. Speed 2
SKY_CLOUD_2_SPEED
Parameter: Noise Offset 2
SKY_CLOUD_2_OFFSET
Parameter: Scale N-S 2
SKY_CLOUD_2_SCALE_NS
Parameter: Scale W-E 2
SKY_CLOUD_2_SCALE_WE
Parameter: Pos. N-S 2
SKY_CLOUD_2_MOVE_NS
Parameter: Pos. W-E 2
SKY_CLOUD_2_MOVE_WE
Parameter: Noise 3
SKY_CLOUD_3_NOISE
Parameter: Color 3
SKY_CLOUD_3_COLOR
Parameter: Height 3
SKY_CLOUD_3_HEIGHT
Parameter: Density 3
SKY_CLOUD_3_DENSITY
Parameter: Coverage 3
SKY_CLOUD_3_COVERAGE
Parameter: Thickness 3
SKY_CLOUD_3_THICKNESS
Parameter: Transparency 3
SKY_CLOUD_3_TRANSPARENCY
Parameter: Save as Preset...
SKY_CLOUD_3_SAVE_PRESET
Parameter: Load Preset...
SKY_CLOUD_3_LOAD_PRESET
Parameter: Anim. Speed 3
SKY_CLOUD_3_SPEED
Parameter: Noise Offset 3
SKY_CLOUD_3_OFFSET
Parameter: Scale N-S 3
SKY_CLOUD_3_SCALE_NS
Parameter: Scale W-E 3
SKY_CLOUD_3_SCALE_WE
Parameter: Pos. N-S 3
SKY_CLOUD_3_MOVE_NS
Parameter: Pos. W-E 3
SKY_CLOUD_3_MOVE_WE
Parameter: Noise 4
SKY_CLOUD_4_NOISE
Parameter: Color 4
SKY_CLOUD_4_COLOR
Parameter: Height 4
SKY_CLOUD_4_HEIGHT
Parameter: Density 4
SKY_CLOUD_4_DENSITY
Parameter: Coverage 4
SKY_CLOUD_4_COVERAGE
Parameter: Thickness 4
SKY_CLOUD_4_THICKNESS
Parameter: Transparency 4
SKY_CLOUD_4_TRANSPARENCY
Parameter: Save as Preset...
SKY_CLOUD_4_SAVE_PRESET
Parameter: Load Preset...
SKY_CLOUD_4_LOAD_PRESET
Parameter: Anim. Speed 4
SKY_CLOUD_4_SPEED
Parameter: Noise Offset 4
SKY_CLOUD_4_OFFSET
Parameter: Scale N-S 4
SKY_CLOUD_4_SCALE_NS
Parameter: Scale W-E 4
SKY_CLOUD_4_SCALE_WE
Parameter: Pos. N-S 4
SKY_CLOUD_4_MOVE_NS
Parameter: Pos. W-E 4
SKY_CLOUD_4_MOVE_WE
Parameter: Noise 5
SKY_CLOUD_5_NOISE
Parameter: Color 5
SKY_CLOUD_5_COLOR
Parameter: Height 5
SKY_CLOUD_5_HEIGHT
Parameter: Density 5
SKY_CLOUD_5_DENSITY
Parameter: Coverage 5
SKY_CLOUD_5_COVERAGE
Parameter: Thickness 5
SKY_CLOUD_5_THICKNESS
Parameter: Transparency 5
SKY_CLOUD_5_TRANSPARENCY
Parameter: Save as Preset...
SKY_CLOUD_5_SAVE_PRESET
Parameter: Load Preset...
SKY_CLOUD_5_LOAD_PRESET
Parameter: Anim. Speed 5
SKY_CLOUD_5_SPEED
Parameter: Noise Offset 5
SKY_CLOUD_5_OFFSET
Parameter: Scale N-S 5
SKY_CLOUD_5_SCALE_NS
Parameter: Scale W-E 5
SKY_CLOUD_5_SCALE_WE
Parameter: Pos. N-S 5
SKY_CLOUD_5_MOVE_NS
Parameter: Pos. W-E 5
SKY_CLOUD_5_MOVE_WE
Parameter: Noise 6
SKY_CLOUD_6_NOISE
Parameter: Color 6
SKY_CLOUD_6_COLOR
Parameter: Height 6
SKY_CLOUD_6_HEIGHT
Parameter: Density 6
SKY_CLOUD_6_DENSITY
Parameter: Coverage 6
SKY_CLOUD_6_COVERAGE
Parameter: Thickness 6
SKY_CLOUD_6_THICKNESS
Parameter: Transparency 6
SKY_CLOUD_6_TRANSPARENCY
Parameter: Save as Preset...
SKY_CLOUD_6_SAVE_PRESET
Parameter: Load Preset...
SKY_CLOUD_6_LOAD_PRESET
Parameter: Anim. Speed 6
SKY_CLOUD_6_SPEED
Parameter: Noise Offset 6
SKY_CLOUD_6_OFFSET
Parameter: Scale N-S 6
SKY_CLOUD_6_SCALE_NS
Parameter: Scale W-E 6
SKY_CLOUD_6_SCALE_WE
Parameter: Pos. N-S 6
SKY_CLOUD_6_MOVE_NS
Parameter: Pos. W-E 6
SKY_CLOUD_6_MOVE_WE
Parameter: Show Moon
SKY_ASTRO_MOON_SHOW
Parameter: Scale
SKY_GENERAL_SCALE_MOON
Parameter: Bright Intensity
SKY_GENERAL_MOON_BRIGHT
Parameter: Dark Intensity
SKY_GENERAL_MOON_DARK
Parameter: Distance Scale
SKY_GENERAL_MOON_DIST_SCALE
Parameter: Custom Moon Object
SKY_OBJECT_MOON_OBJECT
Parameter: Show Stars
SKY_ASTRO_SHOW_STARS
Parameter: Min Magnitude
SKY_GENERAL_MIN_MAG
Parameter: Resize Stars with Magnitude
SKY_GENERAL_RESIZE_STARS
Parameter: Brighten Stars
SKY_GENERAL_LIGHTEN_UP_STARS
Parameter: Star Radius
SKY_GENERAL_STAR_RADIUS
Parameter: Show Constellations
SKY_GENERAL_SHOW_CONSTELLATIONS
Parameter: Constellation color
SKY_GENERAL_CONSTELLATION_COLOR
Parameter: Grid Width
SKY_GENERAL_GRID_WIDTH
Parameter: Grid Color
SKY_GENERAL_GRID_COLOR
Parameter: Show Planets
SKY_ASTRO_PLANETS_SHOW
Parameter: Scale
SKY_GENERAL_SCALE_PLANETS
Parameter: Sky Dome Ambient Light
SKY_GENERAL_SKY_DOME
Parameter: Merge Sky and Sun
SKY_GENERAL_MERGE_SUN
Parameter: GI Generate
SKY_MATERIAL_GLOBALILLUM_GENERATE
Parameter: GI Generate Strength
SKY_MATERIAL_GLOBALILLUM_GENERATE_STRENGTH
Parameter: Saturation
SKY_GENERAL_GI_SATURATION
Parameter: Cloud Influence
SKY_GENERAL_GI_INFLUENCE
Parameter: Priority
SKY_EXPRESSION_PRIORITY
Parameter: Texture Preview Size
SKY_MATERIAL_PREVIEWSIZE
Parameter: Show Location HUD
SKY_SHOW_HUD
Parameter: Update Editor
SKY_UPDATE_EDITOR
Parameter: Show Bounding Box
SKY_SHOW_CLOUD_BOX
Parameter: Editor Color
SKY_CLOUD_EDITOR_COLOR
Parameter: Editor Quality
SKY_CLOUD_EDITOR_QUALITY
Parameter: Adjust Altitude
SKY_VOL_CLOUDS_ADJUST_ALTITUDE
Parameter: Receive Shadows
SKY_VOL_CLOUDS_RECEIVE_SHADOWS
Parameter: Sample Size
SKY_VOL_CLOUDS_SAMPLE_SIZE
Parameter: Edge Noise
SKY_VOL_CLOUDS_EDGE_NOISE_NOISE
Parameter: Contrast
SKY_VOL_CLOUDS_EDGE_NOISE_CONTRAST
Parameter: Scale
SKY_VOL_CLOUDS_EDGE_NOISE_SCALE
Parameter: Noise Speed
SKY_VOL_CLOUDS_EDGE_NOISE_SPEED
Parameter: Lights
SKY_VOL_CLOUDS_LIGHT_LIST
Parameter: Color
SKY_FOG_COLOR
Parameter: Start Height
SKY_FOG_START
Parameter: End Height
SKY_FOG_END
Parameter: Max. Distance
SKY_FOG_MAXDIST
Parameter: Density
SKY_FOG_DENSITY
Parameter: Density Distribution
SKY_FOG_DENSITY_DISTRIB
Parameter: Noise
SKY_FOG_NOISE
Parameter: Noise Strength
SKY_FOG_NOISE_STRENGTH
Parameter: Scale
SKY_FOG_SCALE
Parameter: Movement
SKY_FOG_MOVEMENT
Parameter: Sample Size
SKY_FOG_SAMPLE_SIZE
Parameter: Animation Speed
SKY_FOG_ANIMATION_SPEED
Parameter: Shadow Intensity
SKY_FOG_SHADOW_INTENSITY
Parameter: Illumination Intensity
SKY_FOG_ILLUM_INTENSITY
Parameter: Max. Strength
SKY_RAINBOW_MAX_STRENGTH
Parameter: Turbidity Dependent
SKY_RAINBOW_TURBIDITY_DEP
Parameter: Min. Turbidity Threshold
SKY_RAINBOW_TURBIDITY_THRESHOLD_MIN
Parameter: Max. Turbidity Threshold
SKY_RAINBOW_TURBIDITY_THRESHOLD_MAX
Parameter: First Rainbow Inner Angle
SKY_RAINBOW_1_INNER
Parameter: First Rainbow Outer Angle
SKY_RAINBOW_1_OUTER
Parameter: Secondary Rainbow Inner Angle
SKY_RAINBOW_2_INNER
Parameter: Secondary Rainbow Outer Angle
SKY_RAINBOW_2_OUTER
Parameter: Start Clipping
SKY_RAINBOW_START_CLIP
Parameter: End Clipping
SKY_RAINBOW_END_CLIP
Parameter: Turbidity Dependent
SKY_BEAMS_TURBIDITY_DEPENDENT
Parameter: Intensity
SKY_BEAMS_INTENS
Parameter: Min. Brightness
SKY_BEAMS_MIN_BRIGHTNESS
Parameter: Start Distance
SKY_BEAMS_START
Parameter: End Distance
SKY_BEAMS_END
Parameter: Sample Distance
SKY_BEAMS_SAMPLE_DIST
Parameter: Place Object...
SKY_SKY_OBECT_PLACE