[x3d-public] Can you get this X3D animation imported into Blender?

Tue Jun 11 18:40:02 PDT 2024

> For example, I can “turn off” Y up, if needed.

Why, Y is up. Don't let it be turned on in blend. That is first, know that the blender default cood sys is like x3d global and hanim local. 

> translating EMPTYs to something besides transforms. 

The thing is called Empty because it does not have a name, then either a transform matrix or some mesh data. You make an Empty a Transform by giving it a default matrix to handle translation,   rotation, scale, and other stuff that can make a Transform node that does something we want it to do.

So, for default before animation in blend you want to see a hierarchy of named Emptys to handle the Humanoid, the Joint, The Segment, and Site Nodes. Jin has Joint center data and Site translation data. If an Empty won't do a transform center, then that is a problem that can be cleverly dealt with, I think.
Should be able to create a replica of the 20 hierarchy.

A section of the GUI shows you what it thinks it has, with indents, just duplicate that by import 20 or type it into the GUI. Then can start thinking about inserting certain Empties to put some geometry.

See, the blend only has a GUI to show you what is happening (no readable user code)and let you create the node as you go input stuff by giving you these Empties to start with.
You make the node from an Empty by giving it data.  At some point fifure where to put geometry, and some animation.  
For animation, each frame you just compute and update the the matrices then render the thing. 

Thanks, John, more later. 
Joe

-----Original Message-----
From: John Carlson <yottzumm at gmail.com>
Sent: Jun 11, 2024 3:43 PM
To: Joe D Williams <joedwil at earthlink.net>
Cc: Carol McDonald <cemd2 at comcast.net>, GPU Group <gpugroup at gmail.com>, Katy Schildmeyer KS APPAREL DESIGN <katy at ksappareldesign.com>, X3D Graphics public mailing list <x3d-public at web3d.org>
Subject: Re: Can you get this X3D animation imported into Blender?

For example, I can “turn off” Y up, if needed.

On Tue, Jun 11, 2024 at 5:35 PM John Carlson <yottzumm at gmail.com (mailto:yottzumm at gmail.com)> wrote:
Here are the Blender exports, from glTF/.bin exporter, x3d exporter and x3dv exporter.  So you can see that the hierarchy is exported for Jin 20.  Is there anything else you want me to do, except what I previously outlined? 
Thanks!

John

On Tue, Jun 11, 2024 at 12:38 PM Joe D Williams <joedwil at earthlink.net (mailto:joedwil at earthlink.net)> wrote:
I think the most important is to figure out how to get blender to export the stuff we need, hierarchy, shapes, and animations. These are all gltf asset types that blender should support. We would like a direct export of x3d syntax, but the gltf will be testable since a couple of browsers say they can import.  

There should be a way to import the last transform hierarchy example you showed.
That is a fine example that should show some patterns in the blender data. 
Study the gltf assets along with other json to see what we can use. 

So, I would like to see import/export of last jin-like no geometry loa4 example skeleton I sent, but a main item to advance x3d hanim and blender would be to get the ASCII exports of gltf and related working. For the .blend or from the internal stores the basic stuff for hierarchy, geometry, and animation are in there just needing to be extracted. The gltf and related are supposed to help us get these data types.    
Otherwise, the main item would be to either import or type in a testable loa4 hierarchy skeleton, then figure out how to export it back to x3d. It would be ok to settle for gltf instead of pure x3d syntax. 

What other work in x3d-to/from-blender is available?

Thanks,John.
Joe

-----Original Message-----
From: John Carlson <yottzumm at gmail.com (mailto:yottzumm at gmail.com)>
Sent: Jun 10, 2024 1:13 PM
To: Carol McDonald <cemd2 at comcast.net (mailto:cemd2 at comcast.net)>, GPU Group <gpugroup at gmail.com (mailto:gpugroup at gmail.com)>, Joe D Williams <joedwil at earthlink.net (mailto:joedwil at earthlink.net)>
Cc: Katy Schildmeyer KS APPAREL DESIGN <katy at ksappareldesign.com (mailto:katy at ksappareldesign.com)>, X3D Graphics public mailing list <x3d-public at web3d.org (mailto:x3d-public at web3d.org)>
Subject: Re: Can you get this X3D animation imported into Blender?

First off, I asked for priorities to work on.  Blender was one of the top priorities.  So I’m working on it.  If you are not interested, I will stop sending to you messages.  Only a couple of people responded.

If you have something higher priority than Blender, that you are invested in, please bring it up.

John

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