Is that possible to create a mesh sequence from Python script, i.e. without loading from a file? about stop-motion-obj

[neverhood311]

That's an interesting idea. I think it's entirely possible.

How would your mesh data be formatted? According to this stack exchange post, Blender can create a mesh from an array of vertex positions (formatted like this: [(0.0, 0.0, 0.0), (1.0, 0.0, 0.0), (0.0, 1.0, 0.0)]) and an array of faces (formatted as arrays of vertex indices like this: [[0, 1, 2]]). If the mesh data is formatted like this, I think it would be fairly straightforward to add the desired API.

[archibate]

(formatted like this: [(0.0, 0.0, 0.0), (1.0, 0.0, 0.0), (0.0, 1.0, 0.0)]) and an array of faces (formatted as arrays of vertex indices like this: [[0, 1, 2]])

Exactly! I will create the meshes first according to that post, and fed the meshes to the API here.

[neverhood311]

Ok, I'll see what I can do. I can't promise a timeline, though.

[archibate]

And what's more, can we use the streaming mechanism, to only generate a frame when requested? Something like:

def on_request_frame(frame):
  mesh = ...  # generate a mesh via Taichi
  return mesh

object.mesh_sequence_settings.set_frame_callback(on_request_frame, mode='streaming')

[neverhood311]

That sounds a little more tricky but still probably possible.

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On Thu, Aug 20, 2020 at 8:44 PM 彭于斌 ***@***.***> wrote: And what's more, can we use the *streaming* mechanism, to only generate a frame when requested? Something like: def my_frame_generator(frame): mesh = ... return mesh object.mesh_sequence_settings.hook_streaming(my_frame_generator) — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#104 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ABDGYARMOSX3H4UIR3MZUALSBXNRXANCNFSM4QGA3BAA> .

-- Justin

[neverhood311]

@archibate Are you still working on TaiChi-Blender integration? I'm finally getting around to some Stop Motion OBJ development. I'm working on a feature that lets you create an empty mesh sequence then add new frames to the sequence on-the-fly. Did you still want to integrate with this addon or have you taken a different route?

[archibate]

@archibate Are you still working on TaiChi-Blender integration? I'm finally getting around to some Stop Motion OBJ development. I'm working on a feature that lets you create an empty mesh sequence then add new frames to the sequence on-the-fly. Did you still want to integrate with this addon or have you taken a different route?

Yes, thank for the great project! I studied your addon source code carefully and succeed to support mesh sequence on my own by hooking frame_change_pre. But I have some trouble when saving the mesh sequence (only the mesh at current frame is saved), though.