No Color when downloaded in gltf

petrbroz / vscode-forge-tools

Visual Studio Code extension for accessing Autodesk Forge services and content.

https://marketplace.visualstudio.com/items?itemName=petrbroz.vscode-forge-tools

MIT License

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No Color when downloaded in gltf #16

Closed lookquad closed 4 years ago

lookquad commented 4 years ago

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 commented 4 years ago

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 commented 4 years ago

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 commented 4 years ago

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 commented 4 years ago

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

lookquad commented 4 years ago

Thank You so much

On Tue, Mar 24, 2020 at 9:02 PM Petr Broz notifications@github.com wrote:

The fix is now in devvelop branch and will go live with the next release.

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