Problem with Collada model without textures

l.harder · December 30, 2024, 12:50pm

ok, done ;o)

Import even slightly flawed glTF files to be on par with other 3d engines

opened 12:49PM - 30 Dec 24 UTC

task

_(Opening this ticket as requested by **Britzl** in https://forum.defold.com/t/p…roblem-with-collada-model-without-textures/79295/5):_ Importing glTF/glb files currently requires the 3d data to strictly adhere to the format's definitions. Other engines seem to be more lenient, interpreting models correctly in spite of minor glitches in the model data. Examples of flawed glTF files that do get displayed correctly by non-specialized viewer software (e.g. Mac OSX standard preview), but not by Defold (v1.9.6) are "craft_racer.glb" and "craft_speederA.glb" from https://www.kenney.nl/assets/space-kit. https://github.khronos.org/glTF-Validator/ indicates several warnings and an error for those files: { "code": "SCENE_NON_ROOT_NODE", "message": "Node 1 is not a root node.", "severity": 0, "pointer": "/scenes/0/nodes/0" } When trying to import these models in Defold, that leads to an error message: "The file ‘/assets/models/craft_speederA.glb’ failed to load: Cannot read field “skins” because “scene” is null" Ideally, Defold should be able to load glTF files in spite of partially / lightly flawed data as other engines manage.

Thanks for looking into this.

Regards,
Lutz