No Color when downloaded in gltf

[lookquad]

Hi, when we download the derivative in gltf format, there is no color in the model. Is there some way to get the original colors from the dwg file into the gltf or obj file that can be used in on web using libraries like three.js
Thank You

[petrbroz]

Hi!

As I mentioned on SO, try the following:

• open the gltf file, find the "materials" section, and see what color values you see in individual materials
• if the values are [0,0,0,0], it really is a problem with the conversion
• if the values are non-zero, perhaps the model has colors but is not lit up properly? What application are you viewing the gltf in? Please note that when viewing a gltf model in a three.js app, you need to use at least an ambient light otherwise the model will stay black
• if you're still having issues, please consider sharing your DWG file (confidentially) via forge (dot) help (at) autodesk (dot) com, and we'll debug the translation

[lookquad]

Thank you for considering this.
I saw the values and it is having only two members in "materials" with values [0, 0, 0, 1] and another [1, 1, 1, 1].
I have sent the email with dwg file to the above address. Please have a look.

Thank you

[petrbroz]

Thank you for the additional info, and for providing the sample DWG. Here's what's going on:

• in case of DWG files, the Forge Model Derivative service outputs the colors as vertex colors instead of materials
• the forge-convert-utils library (used by this vscode extension) does not support meshes with vertex colors yet

I will add support for vertex colors to the library, and then bring the new version into this project.

[petrbroz]

The fix is now in develop branch and is going live with the next release (1.5.1).

[lookquad]

Thank You so much

…

On Tue, Mar 24, 2020 at 9:02 PM Petr Broz ***@***.***> wrote: The fix is now in devvelop branch and will go live with the next release. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#16 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ADTNSKGFJ5W55ED7NQJ7GJLRJDHBRANCNFSM4LSONXZA> .

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