solved glTF Validation Error

[freetoplay]

I am getting glTF validation error when I export with unlit materials. Here is what the error looks like when I load it into the BabylonJS sandbox:

{
"uri": "Character.glb",
"mimeType": "model/gltf+json",
"validatorVersion": "2.0.0-dev.2.5",
"validatedAt": "2018-10-09T01:41:05.107Z",
"issues": {
"numErrors": 8,
"numWarnings": 1,
"numInfos": 1,
"numHints": 0,
"messages": [
{
"code": "UNSUPPORTED_EXTENSION",
"message": "Unsupported extension encountered: 'KHR_lights'.",
"severity": 1,
"pointer": "/extensionsUsed/0"
},
{
"code": "UNDECLARED_EXTENSION",
"message": "Extension was not declared in extensionsUsed.",
"severity": 0,
"pointer": "/materials/0/extensions/KHR_materials_unlit"
},
{
"code": "UNDECLARED_EXTENSION",
"message": "Extension was not declared in extensionsUsed.",
"severity": 0,
"pointer": "/materials/1/extensions/KHR_materials_unlit"
},
{
"code": "UNDECLARED_EXTENSION",
"message": "Extension was not declared in extensionsUsed.",
"severity": 0,
"pointer": "/materials/2/extensions/KHR_materials_unlit"
},
{
"code": "UNDECLARED_EXTENSION",
"message": "Extension was not declared in extensionsUsed.",
"severity": 0,
"pointer": "/materials/3/extensions/KHR_materials_unlit"
},
{
"code": "UNDECLARED_EXTENSION",
"message": "Extension was not declared in extensionsUsed.",
"severity": 0,
"pointer": "/materials/4/extensions/KHR_materials_unlit"
},
{
"code": "UNDECLARED_EXTENSION",
"message": "Extension was not declared in extensionsUsed.",
"severity": 0,
"pointer": "/materials/5/extensions/KHR_materials_unlit"
},
{
"code": "UNDECLARED_EXTENSION",
"message": "Extension was not declared in extensionsUsed.",
"severity": 0,
"pointer": "/materials/6/extensions/KHR_materials_unlit"
},
{
"code": "UNDECLARED_EXTENSION",
"message": "Extension was not declared in extensionsUsed.",
"severity": 0,
"pointer": "/materials/7/extensions/KHR_materials_unlit"
},
{
"code": "NODE_EMPTY",
"message": "Empty node encountered.",
"severity": 2,
"pointer": "/nodes/9"
}
],
"truncated": false
},
"info": {
"version": "2.0",
"generator": "babylon.js glTF exporter for 3ds max 2017 v1.2.40",
"extensionsUsed": [
"KHR_lights"
],
"resources": [
{
"pointer": "/buffers/0",
"mimeType": "application/gltf-buffer",
"storage": null
},
{
"pointer": "/images/0",
"mimeType": null,
"storage": "bufferView"
},
{
"pointer": "/images/1",
"mimeType": null,
"storage": "bufferView"
},
{
"pointer": "/images/2",
"mimeType": null,
"storage": "bufferView"
},
{
"pointer": "/images/3",
"mimeType": null,
"storage": "bufferView"
}
],
"hasAnimations": false,
"hasMaterials": true,
"hasMorphTargets": false,
"hasSkins": false,
"hasTextures": true,
"hasDefaultScene": true,
"primitivesCount": 9,
"maxAttributesUsed": 3
}

Does anyone know what's going on?

[Guest]

Pinging @bghgary

[bghgary]

@kcoley There are a couple of things wrong with the exporter.

1. It seems to be exporting the unlit extension without putting the extension into the 'extensionsUsed' array.
2. KHR_lights is old and needs to be renamed KHR_lights_punctual.

Can you take a look?

[Guest]

@freetoplay are you exporting from babylon.js or from a DCC tool like 3dsmax?

[bghgary]

@Deltakosh The validator reports where it's coming from.

15 hours ago, freetoplay said:

"generator": "babylon.js glTF exporter for 3ds max 2017 v1.2.40",

 

[Guest]

Ok:) I stand corrected

[kcoley]

@freetoplay @bghgary looking into this.

[kcoley]

@freetoplay @bghgary I just made an update to the 3ds Max Babylon exporter which now uses the KHR_lights_punctual extension and sets KHR_materials_unlit in extensionsUsed when exporting to glTF/glb