Tips for Verge3D devs

This page contains random tips and code snippets that Verge3D devs or Verge3D DevKit users may find useful for their work.

Getting v3d namespace from iframe

document.getElementsByTagName("iframe")[0].contentWindow.v3d

e.g. to print performance profile from the iframe:

document.getElementsByTagName("iframe")[0].contentWindow.v3d.apps[0].printPerformanceInfo()

or to enable FPS counter:

document.getElementsByTagName("iframe")[0].contentWindow.v3d.apps[0].showFPS()

Debugging Verge3D render target

Use the following code to create a plane with the output of the given render target:

// DONT FORGET TO REMOVE IT!
var texture = renderTarget.texture
var geometry = new v3d.PlaneBufferGeometry(3, 3);
var material = new v3d.MeshBasicMaterial();
material.map = texture;
var planeMesh = new v3d.Mesh(geometry, material);
planeMesh.position.x = 6;
v3d.apps[0].scene.add(planeMesh);

Code Indentation Style

The K&R style, 4 spaces:

function someFun() {
    const someConst = 10;
    const alwaysTrue = true;

    for (let i = 0; i < someConst; i++) {
        if (alwaysTrue) {
            console.log(`Hello ${i}!`);
        }
    }
}

Key Triplets

There are several key triplets supported by Verge3D which are useful for debugging. To execute a triplet, wait until a Verge3D app finishes its loading, then press the same key thrice very quickly.

• PPP — print performance profile. See here for more info.
• FFF — show/hide FPS counter in the upper left corner of the rendered canvas.
• HHH — halt/continue application rendering.

Short Links

These short links can be very helpful for debugging mobile devices.

• v3d.net/w — WebGL System Report.
• v3d.net/s — Scooter Demo.
• v3d.net/r — Industrial Robot Demo.
• v3d.net/1 — redirect to local App Manager (http://localhost:8668/)
• v3d.net/pw — detect GPU based on WebGL power preference.

Supported modelling suites

Suite	Release year	Python	AM	Build Info / Notes
Blender 2.83 LTS	2020	3.7.4	T
Blender 2.90	2020	3.7.7	T
Blender 2.91	2020	3.7.7	T
Blender 2.92	2021	3.7.7	T
Blender 2.93 LTS	2021	3.9.2	T	Dropped Windows 7 support (Windows 8.1 is OK)
Blender 3.0	2021	3.9.7	T
Blender 3.1	2022	3.10.2	T
Blender 3.2	2022	3.10.2	T
Blender 3.3 LTS	2022	3.10.2	T
Blender 3.4	2022	3.10.2	T
3ds Max 2020	2019	2.7.15	P	VS 2017, Platform Toolset v141, Windows SDK 10.0.17134.0
3ds Max 2021	2020	3.7.6	P	VS 2017, Platform Toolset v141, Windows SDK 10.0.17134.0. Dropped Windows 7-8.1 support. Arnold by default.
3ds Max 2022	2021	3.7.9	P	VS 2017, Platform Toolset v141, Windows SDK 10.0.17134.0
3ds Max 2023	2022	3.9.7	P	VS 2019, Platform Toolset v142, Windows SDK 10.0.19041.0
Maya 2019	2018	2.7.11	P
Maya 2020	2019	2.7.11	P
Maya 2022	2021	3.7.7	T	Dropped Windows 7 support
Maya 2023	2022	3.9.7	T

App Manager undocumented features

• localhost:8668/get_preview_dir — get path to preview directory.

• localhost:8668/update_all_apps — update all applications automatically (use with caution!).

• localhost:8668/restart — restart server.

• localhost:8668/stop — stop server.

• localhost:8668/reset — reset server settings.