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glTF Sample Viewer Web App

This is the official Khronos glTF 2.0 Sample Viewer using WebGL: glTF 2.0 Sample Viewer

Viewer

Link to the live glTF 2.0 Sample Viewer.

Usage

Controls

click + drag : Rotate model

scroll : Zoom camera

GUI : Use to change models and settings

Change glTF model

  • Choose one of the glTF models in the selection list
  • Drag and drop glTF files into viewer

Change the environment map

  • Drag and drop a .hdr panorama file

Setup

For local usage and debugging, please follow these instructions:

  1. Checkout the main branch

  2. Pull the submodule for the required glTF-Sample-Renderer git submodule update --init --recursive

  3. Build the web app

When making changes, the project is automatically rebuilt and the ./dist directory is populated with the web app. This directory contains all files necessary for deployment to a webserver.

Debugging

  • Requirements
  • Install the Debugger for Chrome or Debugger for Firefox extension for Visual Studio Code
  • Open the project directory in Visual Studio Code and select Debug->Add Configuration->Chrome or Debug->Add Configuration->Firefox so the .vscode/launch.json file is created.
  • For chrome: Append /dist to ${workspaceFolder} in the launch.json file
  • Debug->Start Debugging should now launch a Chrome or Firefox window with the sample viewer and VS Code breakpoints should be hit.

Known Issues

npm install / npm run dev give the following warnings:

The following warning comes from a thirdparty and does not affect sample viewer since the mentioned line 179 is never executed.

(!) "this" has been rewritten to "undefined"
https://rollupjs.org/troubleshooting/#error-this-is-undefined
node_modules/iobuffer/lib-esm/text-encoding-polyfill.js
177:     : typeof self !== 'undefined'
178:         ? self
179:         : this);
               ^
180: //# sourceMappingURL=text-encoding-polyfill.js.map

The following warning is caused by an old bulma version, which buefy-next currently depends on. This should be fixed in an upcoming release: ntohq/buefy-next#208

[0] [build] DEPRECATION WARNING: Sass's behavior for declarations that appear after nested
[0] rules will be changing to match the behavior specified by CSS in an upcoming
[0] version. To keep the existing behavior, move the declaration above the nested
[0] rule. To opt into the new behavior, wrap the declaration in `& {}`.
[0]
[0] More info: https://sass-lang.com/d/mixed-decls
[0]
[0]    ╷
[0] 51 │ ┌   &:not(.is-rounded)
[0] 52 │ │     border-radius: $radius-small
[0]    │ └─── nested rule
[0] 53 │     font-size: $size-small
[0]    │     ^^^^^^^^^^^^^^^^^^^^^^ declaration
[0]    ╵
[0]     node_modules\bulma\sass\elements\button.sass 53:3   button-small()
[0]     node_modules\bulma\sass\elements\button.sass 252:5  @import
[0]     node_modules\bulma\sass\elements\_all.sass 5:9      @import
[0]     node_modules\bulma\bulma.sass 5:9                   @import
[0]     stdin 60:9                                          root stylesheet

The following warnings stem from the rollup copy plugin, which is only used for development to copy files to the dist folder.

npm WARN deprecated [email protected]: This module is not supported, and leaks memory. Do not use it. Check out lru-cache if you want a good and tested way to coalesce async requests by a key value, which is much more comprehensive and powerful.
npm WARN deprecated [email protected]: See https://github.com/lydell/source-map-resolve#deprecated
npm WARN deprecated [email protected]: Rimraf versions prior to v4 are no longer supported
npm WARN deprecated [email protected]: Glob versions prior to v9 are no longer supported
npm WARN deprecated [email protected]: Glob versions prior to v9 are no longer supported
npm WARN deprecated [email protected]: Glob versions prior to v9 are no longer supported
npm WARN deprecated [email protected]: Glob versions prior to v9 are no longer supported