add load 3d node support

[jtydhr88]

Hi,
I implment a node to load local 3d models, here is FE change:
Comfy-Org/ComfyUI_frontend#1563

which needs this BE changes.

here are the introduction video as your reference:

1. basic load feature

1.load-3d-intro-width-height.mp4

3. showGrid, cameraType, View

2.load-3d-intro-showGrid-cameraType-View.mp4

5. material, lightIntensity

3.load-3d-intro-material-lightIntensity.mp4

7. fbx and animation

4.load-3d-intro-fbx-animation.mp4

9. up-direction

5.load-3d-intro-param-up-direction.mp4

11. multi-models (video file is too big)
12. supported-formats (video file is too big)
13. preview-3d-node

8.preview-3d-node-intro.mp4

[huchenlei]

@comfyanonymous PTAL, the frontend PRs are already merged. We should have this PR merged on next frontend sync this Friday.

[yovsac]

This node can be a revolution on how we use comfy. Is it going to be implemented any time soon??

[huchenlei]

@comfyanonymous PTAL. I do think @jtydhr88 should become the owner of these nodes, i.e. we don't try to understand every detail of the implementation and when issue pop-up we just do necessary reverts and assign issue to the owner.

[comfyanonymous]

Does this node need to be in the backend? Can it be a frontend only node?

[jtydhr88]

good catch, I think so.
let me check and give you back soon

[huchenlei]

good catch, I think so. let me check and give you back soon

Let's just remove that Preview3D node for now and get this PR merged. We can decide how to handle that Preview3D node later.

[jtydhr88]

removed, I will work on how to implement Preview3D on FE only

[yovsac]

Great news! Does this mean we can start using it when we update comfy ?

[AndyWu2015]

so cool， just want to try comfyui. thanks Terry. （太酷啦，正好想试着用用comfyui。感谢Terry）

[jtydhr88]

Great news! Does this mean we can start using it when we update comfy ?

Yes! please update to the latest!

[yovsac]

Great thanks!!!