3D Models in GMetri

GMetri supports two web based formats for 3D Models: glb and gltf (v2).

Converting 3D Models to Compatible Formats

To get the glb/gltf format file for your 3D models you can use 3D softwares like Autodesk 3Ds Max, Autodesk Maya or Blender, using inbuilt exporters or use online converters.

Here are the GMetri guidelines to directly export your models to the gltf v2/glb format:

3D Model Recommendations

GLTF Models can be exported from the 3D software 3ds Max using a third party script - babylon.js GLTF Exporter.

Here is the complete documentation on the babylon.js exporter for 3ds Max.

After installing babylon.js, a new menu button will appear in your 3ds Max. Clicking on it will bring up this screen.

You can export either GLTF/GLB format. The editor supports both formats. Select one format and select your export folder and then click export.

Once export is completed you will get the following message and then you can close the exporter.

GLTF Models can be exported from the 3D software Blender using its inbuilt GLTF Exporter, that can be enabled in User Preferences > Add-ons.

Here is an extended video tutorial on working in Blender to export GLTF Models made by The Khronos Group (makers of GLTF format).

Let's say you want to place an image in a 3D Scene - on a wall or on a banner or a TV - how do you know what aspect ratio to use?

You can depend on a property of GMetri - that when you first import an image, GMetri maintains its aspect ratio.

There are a few images in GMetri Assets > Images that are essentially grids - you can use grids to find out the aspect ratio of these walls

These are the good ones:

Measuring aspect ratio

The steps to measure the aspect ratio of a wall is to place the grid on the wall (align as closely as possible) and then scale it so one side becomes a whole number

Example 1

For example here for this wall, we placed and scaled it so that the y height = 10

And the corresponding x length happens to be 16.2 (-1 to 15.2) - so you want to use an image with an aspect ratio of 16.2:10 for this wall - something like Eg: 800px x 500px

Example 2

This ratio happens to be 20:7.4. So you want an image with a resolution like 1000px x 370px

This is of course only true when you want exactly 0 distortion. You can also ballpark it and make minor adjustments to the image element with minor distortion.

360 Panoramic Images can be rendered from a 3D model using the 3D software 3DS Max.

Here is a video tutorial of how to render a scene in 3DS Max using VRay to output an Equirectangular 360 Panoramic Image.

Remember to place the camera at the height of an average human eye height to maintain the scale of the room to real-life.

360 Videos

• Shoot your own - GMetri Guidelines.

  • Popular 360 Cameras:

  • GoPro Fusion 360

  • Ricoh Theta V

  • Samsung Gear 360

• Integrated into the GMetri editor:

  • Flickr - Search and insert directly from your GMetri file manager

  • GMetri Asset Library - A curated set of assets from GMetri

• Free External Repositories:

• Paid External Repositories:

360 Images

• Shoot your own with the: -GoPro Fusion 360 -Ricoh Theta V -Samsung Gear 360

• Integrated into the GMetri editor: -Flickr - Uncheck "Equirectangular", search and insert directly from your GMetri file manager

• Free External Repositories:

3D Models

• Create / Import your own 3D assets:

• Integrated into the GMetri editor:

  • Sketchfab - Search and insert directly from your

Audio

Audio can be used for background music and also for voice-overs. Use the following sites to find the right audio for your experience.

• Text to Speech: Use the SSML feature on your GMetri Editor

• External Resources:

Asset Compression

360 Image Type Conversion

360 images come in multiple formats like equirectangular, cube-map, etc. These images can be converted to the required format using the following link

Can I use 4K 360 videos?​

Yes, but with a few limitations.

True 4K refers to a resolution of 3840x2160. We recommend using 4096x2048 instead.

Check for more details.