glTF Schemas

When you install the SDK it will add a folder that contains a number of glTF schema files. These files are JSON formatted and can be used with tools other than 3Ds Max or Blender to create your own import/export tools and other plugins. You can find more information about the glTF schema format from the following link:

https://github.com/KhronosGroup/glTF(opens in a new tab)

If you are using 3Ds Max, then installing the SDK should also have installed a plugin for the version of 3Ds Max that you are using, and this permits you to use the schemas listed here without having to do anything further. You can find more information on the plugin contents, here:

The 3DS Max Plugin

For information on how to use the Blender plugin that uses these material schemas, please see here:

The Blender Plugin

The schemas available are as follows:

ASOBO_collision_object Files Example

Used to add the Collision Material parameter to materials.

boxcollision.schema.json
collision.schema.json
cylindercollision.schema.json
gltf.ASOBO_collision_object.schema.json
`spherecollision.schema.json`` language-json “ASOBO_collision_object” : { }


**ASOBO\_extra\_occlusion** **Files** **Example**

Used to add a second Occlusion Texture sampled on the UV2 of a material.

-   `gltf.ASOBO_extra_occlusion_texture.schema.json`` language-json
"ASOBO_extra_occlusion" : {
    "extraOcclusionTexture" : {
        "index" : 1,
        "texCoord": 1
    }
}

ASOBO_gizmo_object Files Example

Used to describe gizmos for collisions. It could be Box, Cylinder or Sphere.

boxgizmo.schema.json
cylindergizmo.schema.json
gizmo.schema.json
gltf.ASOBO_gizmo_object.schema.json
gltf.ASOBO_tags.schema.json
`spheregizmo.schema.json`` language-json “ASOBO_gizmo_object”: { “gizmo_objects”: [ { “translation”: [ , , ], “type”: “sphere”, “params”: { “radius”: }, “extensions”: { “ASOBO_tags”: { “tags”: [ “Collision” ] } } } ] }


**ASOBO\_macro\_light** **Files** **Example**

Used to describe some functionality related to lighting.

-   `gltf.ASOBO_macro_light.schema.json`` language-json
"ASOBO_macro_light" : {
    "color" : [
        1,
        1,
        1
        ],
    "intensity" : 1000,
    "cone_angle" : 74.99999867197056,
    "has_symmetry" : true,
    "flash_frequency" : 0.7199999690055847,
    "flash_duration" : 0.08999999612569809,
    "flash_phase" : 0,
    "rotation_speed" : 0,
    "day_night_cycle" : false
}

ASOBO_material_alphamode_dither Files Example

Used to enable/disable the alpha component dither property for the material.

`gltf.ASOBO_material_alphamode_dither.schema.json`` language-json “ASOBO_material_alphamode_dither”: { “enabled”: true }


**ASOBO\_material\_anisotropic\_v2** **Files** **Example**

Used to define an [Anisotropic](../textures/materials/flightsim-materials/#anisotropic) material. The specular on the material is offset by the two roughness components following a custom direction in tangent space.

-   `gltf.ASOBO_material_anisotropic_v2.schema.json`` language-json
"ASOBO_material_anisotropic" : {
    "anisoDirectionRoughnessTexture" : {
        "index" : 0
    }
}

ASOBO_material_blend_gbuffer Files Example

Used to set a factor to blend the base color, metallic, roughness, normal, emissive, and occlusion textures with. Only required by Decal, GeoDecalFrosted, and GeoDecal Blended Mask materials.

`gltf.ASOBO_material_blend_gbuffer.schema.json`` language-json “ASOBO_material_blend_gbuffer” : { “enabled” : true, “baseColorBlendFactor” : 1, “metallicBlendFactor” : 0, “roughnessBlendFactor” : 1, “normalBlendFactor” : 1, “emissiveBlendFactor” : 1, “occlusionBlendFactor” : 1 }


**ASOBO\_material\_clear\_coat\_v2** **Files** **Example**

Used to describe [ClearCoat](../textures/materials/flightsim-materials/#clearcoat) material parameters.

-   `gltf.ASOBO_material_clear_coat_v2.schema.json`` language-json
"ASOBO_material_clear_coat_v2": {
    "clearcoatRoughnessFactor": 0.25,
                                            "clearcoatNormalFactor": 0.5,
                                            "clearcoatColorNormalTiling": 2.0
}

ASOBO_material_clear_coat_v2 Files Example

Used to describe ClearCoat material parameters.

`gltf.ASOBO_material_clear_coat_v2.schema.json`` language-json “ASOBO_material_clear_coat_v2”: { “clearcoatRoughnessFactor”: 0.25, “clearcoatNormalFactor”: 0.5, “clearcoatColorNormalTiling”: 2.0 }


**ASOBO\_material\_detail\_map** **Files** **Example**

Used to describe parameters used in the creation of [Detail Maps](../modeling/aircraft/cockpit/textures/decals/#detail).

-   `gltf.ASOBO_material_detail_map.schema.json`` language-json
"ASOBO_material_detail_map": {
    "UVScale": 10.0,
    "blendThreshold": 0.25,
    "detailColorTexture": {
        "index": 2
    },
    "detailNormalTexture": {
        "scale": 0.4,
        "index": 3
    },
    "detailMetalRoughAOTexture": {
        "index": 4
    },
    "blendMaskTexture": {
        "index": 5
    }
}

ASOBO_material_dirt Files Example

Used to add a wear and tear or dirt/grime overlay to the standard and clear-coat materials.

`gltf.ASOBO_material_dirt.schema.json`` language-json “ASOBO_material_dirt”: { “dirtUvScale”: 10.0, “dirtBlendSharpness”: 1.0, “dirtBlendAmount”: 0.1, “dirtTexture”: { “index”: 0 }, “dirtOcclusionRoughnessMetallicTexture”: { “index”: 1 } }


**ASOBO\_material\_disable\_motion\_blur** **Files** **Example**

Used to enable or disable motion blur for a material.

-   `gltf.ASOBO_material_disable_motion_blur.schema.json`` language-json
"ASOBO_material_disable_motion_blur" : {
    "enabled" : true
}

ASOBO_material_draw_order Files Example

Used to set the Draw Order for a material, ie: set what has to be draw in front of (or underneath) other materials.

`gltf.ASOBO_material_draw_order.schema.json`` language-json “ASOBO_material_draw_order” : { “drawOrderOffset” : 5 }


**ASOBO\_material\_environment\_occluder** **Files** **Example**

Used to enable or disable the [EnvironmentOccluder](../textures/materials/flightsim-materials/#environmentoccluder) material property.

-   `gltf.ASOBO_material_environment_occluder.schema.json`` language-json
"ASOBO_material_environment_occluder" : {
    "enabled" : true
}

ASOBO_material_fake_terrain Files Example

Used to enable or disable the FakeTerrain material property.

`gltf.ASOBO_material_fake_terrain.schema.json`` language-json “ASOBO_material_fake_terrain” : { “enabled” : true }


**ASOBO\_material\_fresnel\_fade** **Files** **Example**

Used to set the fresnel factor and the fresnel opacity factor properties of the [FresnelFade](../textures/materials/flightsim-materials/#fresnelfade) material.

-   `gltf.ASOBO_material_fresnel_fade.schema.json`` language-json
"ASOBO_material_fresnel_fade" : {
    "fresnelFactor" : 1.4199999570846558,
    "fresnelOpacityOffset" : 0.7000000476837158
}

ASOBO_material_geometry_decal Files Example

Used to set the mode and sharpness factor for the GeoDecal Blended Mask material.

`gltf.ASOBO_material_geometry_decal.schema.json`` language-json “ASOBO_material_geometry_decal”: { “blendSharpnessFactor”: 1.0, “mode”: “default” }


**ASOBO\_material\_ghost\_effect** **Files** **Example**

Used to enable/disable the ghost effect of the [Ghost](../textures/materials/flightsim-materials/#ghost) material, as well as set its bias, scale, and power.

-   `gltf.ASOBO_material_ghost_effect.schema.json`` language-json
"ASOBO_material_ghost_effect" : {
    "bias" : 1,
    "scale" : 1,
    "power" : 1
}

ASOBO_material_glass Files Example

Used to set the deformation factor for Glass materials.

`gltf.ASOBO_material_glass.schema.json`` language-json “ASOBO_material_glass” : { “glassDeformationFactor” : 0.32999998331069946 }


**ASOBO\_material\_invisible** **Files** **Example**

Used to enable or disable the [Invisible](../textures/materials/flightsim-materials/#invisible) material.

-   `gltf.ASOBO_material_invisible.schema.json`` language-json
"ASOBO_material_invisible" : {
    "enabled" : true
}

ASOBO_material_parallax_window Files Example

Used to set parameters for the ParallaxWindow material.

`gltf.ASOBO_material_parallax_window.schema.json`` language-json “ASOBO_material_parallax_window” : { “parallaxScale” : 1, “roomSizeXScale” : 0.3400000333786011, “roomSizeYScale” : 1.5699999332427979, “roomNumberXY” : 5, “corridor” : true, “behindWindowMapTexture” : { “index” : 1 } }


**ASOBO\_material\_pearlescent** **Files** **Example**

Used to set parameters for the [ParallaxWindow](../textures/materials/flightsim-materials/#parallaxwindow) material.

-   `gltf.ASOBO_material_pearlescent.schema.json`` language-json
"ASOBO_material_pearlescent" : {
    "pearlShift" : 1.4399999380111694,
    "pearlRange" : 1.2300000190734863,
    "pearlBrightness" : 1
}

ASOBO_material_rain_options Files Example

Used to set rain parameters for the ClearCoat and Windshield materials.

`gltf.ASOBO_material_rain_options.schema.json`` language-json “ASOBO_material_rain_options”: { “rainDropScale”: 2.0, “rainDropSide”: false }


**ASOBO\_material\_sail** **Files** **Example**

Used to set [Sail](../textures/materials/flightsim-materials/#sail) material parameters.

-   `gltf.ASOBO_material_sail.schema.json`` language-json
"ASOBO_material_sail": {
    "sailLightAbsorption": 0.3
}

ASOBO_material_shadow_options Files Example

Used to add the Don’t Cast Shadows option to a material.

`gltf.ASOBO_material_shadow_options.schema.json`` language-json “ASOBO_material_shadow_options” : { “noCastShadow” : true }


**ASOBO\_material\_SSS** **Files** **Example**

Used to enable and set parameters for [SSS](../textures/materials/flightsim-materials/#sss) (Sub-Surface Scattering) materials.

-   `gltf.ASOBO_material_SSS.schema.json`` language-json
"ASOBO_material_SSS" : {
    "SSSColor" : [
        0.01829090155661106,
        0.8000000715255737,
        0.029998445883393288,
        1
        ],
                                            "opacityTexture": {
         "index": 3
    }
}

ASOBO_material_UV_options Files Example

Used to add and set various parameters related to the material texture UV Options.

`gltf.ASOBO_material_UV_options.schema.json`` language-json “ASOBO_material_UV_options” : { “AOUseUV2” : false, “clampUVX” : true, “clampUVY” : true, “clampUVZ” : false, “UVOffsetU” : -0.47999998927116394, “UVOffsetV” : 1.4399999380111694, “UVTilingU” : 2.0199999809265137, “UVTilingV” : 2.2899999618530273, “UVRotation” : 1.8299999237060547 }


**ASOBO\_material\_wind\_flex** **Files** **Example**

Used to add [Windflex](../textures/materials/flightsim-materials/#windflex) effects to materials.

-   `gltf.ASOBO_material_wind_flex.schema.json`` language-json
"ASOBO_material_wind_flex " : {
    "windFlexNormal" : false
}

ASOBO_material_windshield_v3 Files Example

Used to define the parameters required by the Windshield material.

`gltf.ASOBO_material_windshield_v3.schema.json`` language-json “ASOBO_material_windshield_v3”: { “wiperMaskTexture”: { “index”: 6 }, “windshieldDetailNormalTexture”: { “index”: 7 }, “scratchesNormalTexture”: { “index”: 8 }, “windshieldInsectsTexture”: { “index”: 9 }, “windshieldInsectsMaskTexture”: { “index”: 10 }, “detail1Rough”: 1.0, “detail2Rough”: 1.0, “detail1Opacity”: 1.0, “detail2Opacity”: 1.0, “microScratchesTiling”: 0.5, “microScratchesStrength”: 0.5, “detailNormalRefractScale”: 0.5, “wiperLines”: true, “wiperLinesTiling”: 0.5, “wiperLinesStrength”: 0.5, “rainDropScale”: 100.0, “wiper1State”: 0.5 }


**ASOBO\_normal\_map\_convention** **Files** **Example**

Used to add support for the DirectX normal map convention

-   `gltf.ASOBO_normal_map_convention.schema.json`` language-json
"ASOBO_normal_map_convention": {
    "tangent_space_convention": "DirectX"
}

ASOBO_occlusion_strength Files Example

Used to set AO Strength parameter for the material.

`gltf.ASOBO_occlusion_strength.schema.json`` language-json “ASOBO_occlusion_strength”: { “strength”: 0.0 }


**ASOBO\_property\_animation** **Files** **Example**

Used to describe material animation in the glTF. See here for more information: [Animated Materials](../textures/materials/animated-materials/)

-   `gltf.ASOBO_property_animation.schema.json`` language-json
"ASOBO_property_animation": {
    "channels": [
        {
        "sampler": 1,
        "target": "materials/14/extensions/ASOBO_material_UV_options/UVOffsetV"
        }
    ]
}

ASOBO_softbody_mesh Files Example

Used to specify meshes which need to be deformed, following a physical mesh.

`gltf.ASOBO_softbody_mesh.schema.json`` language-json “ASOBO_softbody_mesh”: { }

Convert A MSFS2020 Scene To MSFS2024

Lights

Flighting

SDK Documentation

glTF Schemas