MAX to SVF causes aesthetic problems - autodesk-forge

Question

what's causing the textured material to lose its quality/resolution when translated from MAX to SVF?
example / illustration in the image below:
EDIT/UPDATE Model Translation Status:
{
"type": "manifest",
"hasThumbnail": "true",
"status": "success",
"progress": "complete",
"region": "US",
"urn": "dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6am1kaDRvMDR3a24ydmpjOGF2andhMjVrbXJ5Z2dpdmQyMDE5MDIyNnQxNDU1NTU2Nzh6L01vZGVsbFRleHQuemlw",
"version": "1.0",
"derivatives": [
{
"name": "Final-Bake.max",
"hasThumbnail": "true",
"status": "success",
"progress": "complete",
"outputType": "svf",
"children": [
{
"guid": "15e32675-3874-4586-b00e-f6b1ec268dbf",
"type": "geometry",
"role": "3d",
"name": "3d Scene",
"status": "success",
"progress": "complete",
"hasThumbnail": "true",
"children": [
{
"guid": "d43b2b8f-9245-431f-9745-6cfa67d03283",
"type": "resource",
"urn": "urn:adsk.viewing:fs.file:dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6am1kaDRvMDR3a24ydmpjOGF2andhMjVrbXJ5Z2dpdmQyMDE5MDIyNnQxNDU1NTU2Nzh6L01vZGVsbFRleHQuemlw/output/Final-Bake.svf",
"role": "graphics",
"mime": "application/autodesk-svf"
},
{
"guid": "79537c8e-0cd4-4eae-97e9-8457e313248c",
"type": "resource",
"urn": "urn:adsk.viewing:fs.file:dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6am1kaDRvMDR3a24ydmpjOGF2andhMjVrbXJ5Z2dpdmQyMDE5MDIyNnQxNDU1NTU2Nzh6L01vZGVsbFRleHQuemlw/output/Final-Bake.svf.png01_thumb_400x400.png",
"resolution": [
400,
400
],
"mime": "image/png",
"role": "thumbnail"
},
{
"guid": "225043e7-c880-4dbe-9d32-f3dbc3071615",
"type": "resource",
"urn": "urn:adsk.viewing:fs.file:dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6am1kaDRvMDR3a24ydmpjOGF2andhMjVrbXJ5Z2dpdmQyMDE5MDIyNnQxNDU1NTU2Nzh6L01vZGVsbFRleHQuemlw/output/Final-Bake.svf.png01_thumb_200x200.png",
"resolution": [
200,
200
],
"mime": "image/png",
"role": "thumbnail"
},
{
"guid": "5a7fc6b8-f8b9-4228-8750-992e3462fbc2",
"type": "resource",
"urn": "urn:adsk.viewing:fs.file:dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6am1kaDRvMDR3a24ydmpjOGF2andhMjVrbXJ5Z2dpdmQyMDE5MDIyNnQxNDU1NTU2Nzh6L01vZGVsbFRleHQuemlw/output/Final-Bake.svf.png01_thumb_100x100.png",
"resolution": [
100,
100
],
"mime": "image/png",
"role": "thumbnail"
}
]
},
{
"guid": "10ca8b71-543a-429e-a36c-66a43278cf5d",
"type": "resource",
"urn": "urn:adsk.viewing:fs.file:dXJuOmFkc2sub2JqZWN0czpvcy5vYmplY3Q6am1kaDRvMDR3a24ydmpjOGF2andhMjVrbXJ5Z2dpdmQyMDE5MDIyNnQxNDU1NTU2Nzh6L01vZGVsbFRleHQuemlw/output/properties.db",
"role": "Autodesk.CloudPlatform.PropertyDatabase",
"mime": "application/autodesk-db",
"status": "success"
}
]
}
]
}

Answer 1

Depending on how you do your conversion from MAX to SVF, your texture might get resized to make them smaller and faster to load.
If you export your 3ds Max file to SVF using the shared view feature, the "Optimize scene data" option may cause your large textures to be resized.
By default the exporter inside of max will not resize the texture. However, when you are using the "shared view" feature, 3ds Max will save your last used settings inside an ini file "SvfExporter.ini". To turn off texture resizing you can go inside this ini file and change the "OptimizeMaps" value to 0.
By default this ini file will be located inside your user appData folder and will only be present if you used the "shared view" feature.
Ex:C:\Users\myUserName\AppData\Local\Autodesk\3dsMax\2020 - 64bit\ENU\en-US\plugcfg\SvfExporter.ini
If you simply uploaded your file to Autodesk cloud storage and a preview have been generated automatically for you or if you used the Autodesk Forge Model derivative API, then your texture should not get resized.
Update (2021-01-22): New development have been done since my original answer to better support PBR and Physical material conversion to SVF in the later versions of 3ds Max. The texture should not be resized anymore (unless the "Optimize scene data" is selected in the shared view feature) and you should get significantly better looking result when using physical and/or PBR materials.