Check the dev console for errors. Otherwise, carefully follow the instructions on how to add a 3DObject to your project. Also, test out your gltf in the Babylon sandbox.
My model shows up just fine in Babylon.js
However, I do get the following error message upon filling in the gltf file path,
and I made sure I set rendering mode to 3d:
Error report information
Type: unhandled rejection
Reason: Error: Cannot read properties of undefined (reading 'nodes') TypeError: Cannot read properties of undefined (reading 'nodes') at GltfModel.getPolygons (blob:https://editor.construct.net/5fa12fc5-9988-43a0-b35d-fd9f4c5d045e:177:39) at Object3DInstance.doInit (blob:https://editor.construct.net/39f878d1-706e-43fb-9b22-0d7373c55d41:51:23)
Stack: TypeError: Cannot read properties of undefined (reading 'nodes') at GltfModel.getPolygons (blob:https://editor.construct.net/5fa12fc5-9988-43a0-b35d-fd9f4c5d045e:177:39) at Object3DInstance.doInit (blob:https://editor.construct.net/39f878d1-706e-43fb-9b22-0d7373c55d41:51:23)
Construct 3 version: r268
URL: editor.construct.net
Date: Sun Nov 21 2021 10:25:57 GMT+0100 (Central European Standard Time)
Uptime: 33.7 s
Platform information
Browser: Chrome
Browser version: 96.0.4664.45
Browser engine: Chromium
Context: webapp
Operating system: Windows
Operating system version: 10
Device type: desktop
Device pixel ratio: 0.8999999761581421
Logical CPU cores: 8
Approx. device memory: 8 GB
User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/96.0.4664.45 Safari/537.36
C3 release: r268 (stable)
Language setting: en-US
WebGL information
Version string: WebGL 2.0 (OpenGL ES 3.0 Chromium)
Numeric version: 2
Supports NPOT textures: yes
Supports GPU profiling: yes
Supports highp precision: yes
Vendor: Google Inc. (Intel)
Renderer: ANGLE (Intel, Intel(R) UHD Graphics 630 Direct3D11 vs_5_0 ps_5_0, D3D11-27.20.100.8681)
Major performance caveat: no
Maximum texture size: 16384
Point size range: 1 to 1024
Extensions: EXT_color_buffer_float, EXT_color_buffer_half_float, EXT_disjoint_timer_query_webgl2, EXT_float_blend, EXT_texture_compression_bptc, EXT_texture_compression_rgtc, EXT_texture_filter_anisotropic, EXT_texture_norm16, KHR_parallel_shader_compile, OES_texture_float_linear, WEBGL_compressed_texture_s3tc, WEBGL_compressed_texture_s3tc_srgb, WEBGL_debug_renderer_info, WEBGL_debug_shaders, WEBGL_lose_context, WEBGL_multi_draw, OVR_multiview2