RenderableShadowCylinder

Inherits Renderable

Members

Name	Documentation	Type	Description	Optional
Aberration	This value determines the aberration method that is used to compute the shadow cylinder	String	In list { NONE, LT, LT+S, CN, CN+S }	No
Body	This value is the SPICE name of target body that is used as the shadow caster for the shadow cylinder	String	Value of type ‘String’	No
BodyFrame	This value is the SPICE name of the reference frame in which the shadow cylinder is expressed	String	Value of type ‘String’	No
LightSource	This value determines the SPICE name of the object that is used as the illuminator for computing the shadow cylinder	String	Value of type ‘String’	No
Observer	This value specifies the SPICE name of the object that is the observer of the shadow cylinder	String	Value of type ‘String’	No
TerminatorType	This value determines the type of the terminator that is used to calculate the shadow eclipse	String	In list { UMBRAL, PENUMBRAL }	No
NumberOfPoints	This value determines the number of control points that is used to construct the shadow geometry. The higher this number, the more detailed the shadow is, but it will have a negative impact on the performance	Integer	Value of type ‘Integer’	Yes
ShadowColor	This value determines the color that is used for the shadow cylinder	Color3	Value of type ‘Color3’	Yes
ShadowLength	This value determines the length of the shadow that is cast by the target object. The total distance of the shadow is equal to the distance from the target to the Sun multiplied with this value	Double	Value of type ‘Double’	Yes

Inherited members from Renderable

Name	Documentation	Type	Description	Optional
DimInAtmosphere	Enables/Disables if the object should be dimmed when the camera is in the sunny part of an atmosphere	Boolean	Value of type ‘Boolean’	Yes
Enabled	This setting determines whether this object will be visible or not	Boolean	Value of type ‘Boolean’	Yes
Opacity	This value determines the opacity of this renderable. A value of 0 means completely transparent	Double	In range: ( 0,1 )	Yes
RenderBinMode	This value specifies if the renderable should be rendered in the Background,Opaque, Pre/PostDeferredTransparency, or Overlay rendering step	String	In list { Background, Opaque, PreDeferredTransparent, PostDeferredTransparent, Overlay }	Yes
Tag	A single tag or a list of tags that this renderable will respond to when setting properties	Table, or String	Value of type ‘Table’, or Value of type ‘String’	Yes
Type	This tells the type of the renderable	String	Value of type ‘String’	Yes

Asset Examples

local transforms = asset.require("./transforms")
local sunTransforms = asset.require("scene/solarsystem/sun/transforms")
local kernels = asset.require("./kernels")
local coreKernels = asset.require("spice/core")



local textures = asset.resource({
  Name = "Charon Textures",
  Type = "HttpSynchronization",
  Identifier = "charon_textures",
  Version = 3
})


local CharonRadius = 603500

local CharonProjection = {
  Identifier = "CharonProjection",
  Parent = transforms.PlutoBarycenterAccurate.Identifier,
  Transform = {
    Translation = {
      Type = "SpiceTranslation",
      Target = kernels.ID.Charon,
      Observer = kernels.ID.PlutoBarycenter
    },
    Rotation = {
      Type = "SpiceRotation",
      SourceFrame = kernels.Frame.Charon,
      DestinationFrame = coreKernels.Frame.Galactic
    }
  },
  Renderable = {
    Type = "RenderablePlanetProjection",
    Radius = CharonRadius,
    Segments = 350,
    ColorTexturePaths = {
      textures .. "NH_Charon_mosaic.png",
      textures .. "NH_Charon_mosaic_8192.png"
    },
    HeightTexturePaths = {
      textures .. "NH_Charon_DTM.png",
      textures .. "NH_Charon_DTM_8192.png"
    },
    MeridianShift = true,
    Projection = {
      Observer = kernels.ID.NewHorizons,
      Target = kernels.ID.Charon,
      Aberration = "NONE",
      AspectRatio = 2,
      Instrument = {
        Name = kernels.Frame.Lorri,
        Method = "ELLIPSOID",
        Aberration = "NONE",
        Fovy = 0.2907,
        Aspect = 1,
        Near = 0.2,
        Far = 10000
      },
      PotentialTargets = {
        kernels.ID.Pluto,
        kernels.ID.Charon
      }
    }
  },
  GUI = {
    Path = "/Solar System/Dwarf Planets/Pluto",
    Name = "Charon Projection"
  }
}

local CharonText = {
  Identifier = "CharonText",
  Parent = CharonProjection.Identifier,
  Transform = {
    Translation = {
      Type = "StaticTranslation",
      Position = { 0, -1000000.0, 0 }
    }
  },
  Renderable = {
    Type = "RenderablePlaneImageLocal",
    Size = 19952623.15,
    Origin = "Center",
    Billboard = true,
    Texture = textures .. "Charon-Text.png",
    BlendMode = "Additive"
  },
  GUI = {
    Name = "Charon Text",
    Path = "/Solar System/Dwarf Planets/Pluto"
  }
}

local CharonShadow = {
  Identifier = "CharonShadow",
  Parent = CharonProjection.Identifier,
  Renderable = {
    Type = "RenderableShadowCylinder",
    Opacity = 0.25,
    TerminatorType = "PENUMBRAL",
    LightSource = coreKernels.ID.Sun,
    Observer = kernels.ID.NewHorizons,
    Body = kernels.ID.Charon,
    BodyFrame = kernels.Frame.Charon,
    Aberration = "NONE"
  },
  GUI = {
    Name = "Charon Shadow",
    Path = "/Solar System/Dwarf Planets/Pluto"
  }
}


asset.onInitialize(function()
  openspace.addSceneGraphNode(CharonProjection)
  openspace.addSceneGraphNode(CharonText)
  openspace.addSceneGraphNode(CharonShadow)
end)

asset.onDeinitialize(function()
  openspace.removeSceneGraphNode(CharonShadow)
  openspace.removeSceneGraphNode(CharonText)
  openspace.removeSceneGraphNode(CharonProjection)
end)

asset.export(CharonProjection)
asset.export(CharonText)
asset.export(CharonShadow)