KHR_animation_pointer from hook

[marwie]

Describe the bug
TRS animation should be converted to KHR_animation_pointer but it's not

To Reproduce
Steps to reproduce the behavior:

1. Open blendfile
2. Export and enable Animation Pointer / Convert TRS
3. See glTF is not converted

Expected behavior
Animation is using KHR_animation_pointer for TRS

Screenshots

.blend file/ .gltf (mandatory)

KHR cube.zip

Version

• OS: win 10
• Blender Version 4.2

	"animations":[
		{
			"channels":[
				{
					"sampler":0,
					"target":{
						"node":0,
						"path":"translation"
					}
				}
			],
			"name":"CubeAction",
			"samplers":[
				{
					"input":4,
					"interpolation":"LINEAR",
					"output":5
				}
			]
		}
	]

[marwie]

Is there documentation on what can now be animated and how to export? I've briefly tested exporting a material color animation without success.

khr tests.zip

[julienduroure]

Hello,
I agree that documentation still need to be enhanced.

As you can see in your screenshot, the animation pointer panel is greyed when using the "Action" animation.

Because of Blender animation data model (for now), you can't export easily animation pointer data without a full bake mode: "NLA track" or "Scene".

[marwie]

Ah this should maybe be visible in the UI or tooltip.

Is it possible to export animations using the KHR animation extension from an extension (by invoking the exporter methods directly)? I assume this is also limited by the animation data model?

[julienduroure]

• Added a tooltip and fix the active UI: https://projects.blender.org/blender/blender/commit/0c836f7f1a9a6d5f31140ae505c4cc65f3513cab
• About using KHR_animation_pointer from an extension, I didn't think about it yet

Renaming this task to follow the enhancement about animation from extension