[
    {
        "name": "ContrailRenderType",
        "options": [
            "vertical orientation",
            "horizontal orientation",
            "media mapped",
            "ground mapped",
            "viewer facing",
            "double marker linked"
        ],
        "type": "enum"
    },
    {
        "name": "ContrailPointStateScaleFlags",
        "type": "bitfield",
        "fields": [
            "duration",
            "duration delta",
            "transition duration",
            "transition duration delta",
            "width",
            "color"
        ],
        "width": 32
    },
    {
        "name": "ContrailFlags",
        "type": "bitfield",
        "fields": [
            "first point unfaded",
            "last point unfaded",
            "points start pinned to media",
            "points start pinned to ground",
            "points always pinned to media",
            "points always pinned to ground",
            "edge effect fades slowly"
        ],
        "width": 16
    },
    {
        "name": "ContrailScaleFlags",
        "type": "bitfield",
        "fields": [
            "point generation rate",
            "point velocity",
            "point velocity delta",
            "point velocity cone angle",
            "inherited velocity fraction",
            "sequence animation rate",
            "texture scale u",
            "texture scale v",
            "texture animation u",
            "texture animation v"
        ],
        "width": 16
    },
    {
        "name": "ContrailPointState",
        "fields": [
            {
                "name": "duration",
                "bounds": true,
                "type": "float",
                "unit": "seconds"
            },
            {
                "name": "transition duration",
                "bounds": true,
                "type": "float",
                "unit": "seconds"
            },
            {
                "name": "physics",
                "type": "TagReference",
                "groups": [
                    "point_physics"
                ]
            },
            {
                "type": "pad",
                "size": 32
            },
            {
                "name": "width",
                "type": "float",
                "unit": "world units"
            },
            {
                "name": "color lower bound",
                "type": "ColorARGB"
            },
            {
                "name": "color upper bound",
                "type": "ColorARGB"
            },
            {
                "name": "scale flags",
                "type": "ContrailPointStateScaleFlags"
            }
        ],
        "type": "struct",
        "size": 104
    },
    {
        "name": "Contrail",
        "fields": [
            {
                "name": "flags",
                "type": "ContrailFlags"
            },
            {
                "name": "scale flags",
                "type": "ContrailScaleFlags"
            },
            {
                "name": "point generation rate",
                "type": "float",
                "unit": "points per second"
            },
            {
                "name": "point velocity",
                "bounds": true,
                "type": "float",
                "unit": "world units per second"
            },
            {
                "name": "point velocity cone angle",
                "type": "Angle"
            },
            {
                "name": "inherited velocity fraction",
                "type": "Fraction"
            },
            {
                "name": "render type",
                "type": "ContrailRenderType"
            },
            {
                "type": "pad",
                "size": 2
            },
            {
                "name": "texture repeats u",
                "type": "float",
                "unit": "repeats"
            },
            {
                "name": "texture repeats v",
                "type": "float",
                "unit": "repeats"
            },
            {
                "name": "texture animation u",
                "type": "float",
                "unit": "repeats per second"
            },
            {
                "name": "texture animation v",
                "type": "float",
                "unit": "repeats per second"
            },
            {
                "name": "animation rate",
                "type": "float",
                "unit": "frames per second"
            },
            {
                "name": "bitmap",
                "type": "TagReference",
                "groups": [
                    "bitmap"
                ]
            },
            {
                "name": "first sequence index",
                "type": "Index"
            },
            {
                "name": "sequence count",
                "type": "int16"
            },
            {
                "type": "pad",
                "size": 64
            },
            {
                "type": "pad",
                "size": 36
            },
            {
                "name": "unknown int",
                "type": "uint32",
                "cache_only": true
            },
            {
                "name": "shader flags",
                "type": "ParticleShaderFlags"
            },
            {
                "name": "framebuffer blend function",
                "type": "FramebufferBlendFunction"
            },
            {
                "name": "framebuffer fade mode",
                "type": "FramebufferFadeMode"
            },
            {
                "name": "map flags",
                "type": "IsUnfilteredFlag"
            },
            {
                "type": "pad",
                "size": 12
            },
            {
                "type": "pad",
                "size": 16
            },
            {
                "name": "secondary bitmap",
                "type": "TagReference",
                "groups": [
                    "bitmap"
                ]
            },
            {
                "name": "anchor",
                "type": "ParticleAnchor"
            },
            {
                "name": "secondary map flags",
                "type": "IsUnfilteredFlag"
            },
            {
                "name": "u animation source",
                "type": "FunctionOut"
            },
            {
                "name": "u animation function",
                "type": "WaveFunction"
            },
            {
                "name": "u animation period",
                "type": "float",
                "unit": "seconds"
            },
            {
                "name": "u animation phase",
                "type": "float"
            },
            {
                "name": "u animation scale",
                "type": "float",
                "unit": "repeats"
            },
            {
                "name": "v animation source",
                "type": "FunctionOut"
            },
            {
                "name": "v animation function",
                "type": "WaveFunction"
            },
            {
                "name": "v animation period",
                "type": "float",
                "unit": "seconds"
            },
            {
                "name": "v animation phase",
                "type": "float"
            },
            {
                "name": "v animation scale",
                "type": "float",
                "unit": "repeats"
            },
            {
                "name": "rotation animation source",
                "type": "FunctionOut"
            },
            {
                "name": "rotation animation function",
                "type": "WaveFunction"
            },
            {
                "name": "rotation animation period",
                "type": "float"
            },
            {
                "name": "rotation animation phase",
                "type": "float"
            },
            {
                "name": "rotation animation scale",
                "type": "Angle"
            },
            {
                "name": "rotation animation center",
                "type": "Point2D"
            },
            {
                "type": "pad",
                "size": 4
            },
            {
                "name": "zsprite radius scale",
                "type": "float"
            },
            {
                "type": "pad",
                "size": 20
            },
            {
                "name": "point states",
                "type": "Reflexive",
                "struct": "ContrailPointState",
                "maximum": 16
            }
        ],
        "type": "struct",
        "size": 324,
        "group": "contrail",
        "needs_preprocessed": true
    }
]