Basic glTF Export about arsenal

[zicklag]

You, as a game developer, will not have to deal with the glTF export at all. The glTF export happens automatically before Blender runs your game and the developer doesn't even have to know what happens. All changes to the game scenes will be done through Blender, just like it was with Armory. In other words, glTF for Arsenal is what the .arm format was for Armory.

Can I (using the Blender tools) add a cube (as an example) and if I press save, would that cube automatically be converted into a gltf format?

The conversion will automatically happen when you click "Arsenal Run". So the workflow is:

1. Edit my scene in Blender
2. Click "Run"
3. The Blender scene is automatically exported to glTF in the background
4. The game runs and loads the glTF game scene.

[Raj2032]

Why can't we just use the blend file?

[zicklag]

There are three reasons:

1. Maintenance: Keeping up with the Blender file format could be time-consuming as it is a moving target. Comparatively, the glTF format is very simple and standardized.
2. Storage: The blender format contains a lot of metadata that we don't need for a game, such as the Blender UI layout.
3. Efficiency: If you use the Blender file format, the game would have to decode the .blend file while the game is running. This would involve going through more information than is actually needed in the game and would require more CPU to get the required data. glTF is a very dense format that compactly stores the information we need while also facilitating efficient extraction into a running game.

[Raj2032]

@zicklag I see and I understand.

What if I am designing a level map and I am just creating random objects to fit in the level. How would that work exactly? Like say I saved a level map as a gltf format, then what if I wanted to add something. Can I (using the Blender tools) add a cube (as an example) and if I press save, would that cube automatically be converted into a gltf format?