[x3d-public] HAnim Examples

Fri Apr 17 07:28:28 PDT 2020

Hi All, a next practical step is to care for the web3D.org HAnim Archives. Lots is there and nothing is obsoleted except for new names for items of the skeleton but all can be updated. There is duplication and some important items not adequately demonstrated.
So, the highlights are: 

Organizing web3D.org HAnim Example Set:
. produce V2.0 Examples   
. preserve V1.0 and 1.1 Examples 
Two Parts:  
1. the Updated/New  
2. the Existing/Untouched
Part 1. 
Tutorial Order of Appearance
Connections with other X3D Archives
Part 2. 
All existing are be preserved and referenced

V2.0 Examples 
 (mostly evolved from v1)
. Basic Humanoid 
  skeleton 
  basic surface geometry
  accessories
  skin
. Basic Skeleton Animation 
  skeleton prior to animation 
  apply skeleton animation
   joint rotation
   humanoid translation
. Shared skeleton animations
  from/to similar skeletons 
  from motion capture data
. Segment Geometry Animation
  Parent Joint Rotation
  Displacer(s) 
   binding point(s) – displacement(s) – actuator(s) 
. Skin geometry animation 
  binding Joint(s) - point(s) -
   rotation(s) - weight(s)
  single mesh 
  multiple meshes
. Simple Prototype HAnim Elements
. Non-Basic Initial Pose

V1.0 and 1.1 Examples 
 All current examples mostly unchanged

The main idea is to cull through the V1.x examples and produce a nice set of v2.0 examples.
Some easily made from existing and some tune ups.

From: Joseph D Williams
Sent: Friday, April 10, 2020 2:53 PM
To: Brutzman, Donald (Don) (CIV); h-anim at web3d.org; John Carlson; X3D Graphics public mailing list
Subject: Re: [x3d-public] HAnim Examples

Hi All, from what we were able to decide so far, the next step is to care for the web3D.org HAnim Archives. Lots is there and nothing is really been superceded, but plenty has been updated. There is duplication and some important items not adequately demonstrated.
So, the highlights are: 

<this replaced by above>

Additionally, there is this that needs to be advanced. 

http://x3dgraphics.com/slidesets/X3dForAdvancedModeling/HumanoidAnimation.pdf
needs: 
* Integrate loa4
* Working Mocap conversion (in x3dEdit)

Basic Tutorial Structure: 

Prerequisites
# basic X3D user code and event system 
# Transform: orientation and rotation
# parent/child hierarchies
# timer, orientation interpolators

Comment: Nothing Really Special Here.
Since the entire reason for the rest of X3D is to produce and interactive environment for the interactive humanoid, all the basic building blocks for HAnim are mostly already there.
Standard X3D
  All Structures and Functions are Human Readable
  Realistic Model: 
   X3D Medical/Physics Integrates as Expected 
 Best Practices:
  Medical/Personal Orientation 
  Late 20th Century Animation Industry Agreements
  Emphasis on RealTime but readable Data and Structures 
 Under the Covers, All same

Tools:
Simple Text Editor
Stand Alone or HTML Canvas 
Free Open Authoring/Runtime Tools
Commercial/Hobby
X3DEdit
X3dToXhtml.xslt 
X3D Validator
X3D Tidy 
X3D DTD, X3D Schema, X3D Schematron
Document and Analyze Joint. Segment, Site names and hierarchies

Outline:
Example Standard Realistic Humanoid 
 Standard Basic Initial Pose (prior to Animation)
Joint hierarchies
'standard' Joint Center locations 
 'standard' Joint Functionalities
'standard' Site locations
Example Joint center and Site locations
Skeleton hierarchy and site coding example
Skeleton Animation (ball and stick)
Sharing Animations 
 Same Skeletons 
 Similar Skeletons
Add Segment geometry 
 Proper Parentage
Viewpoint examples Parent, Humanoid, Site(s) 
Use Displacer(s) with Segment Geometry
Displacer Bindings: 
  points-displacements-scaling
Sites: Shapes-Sensors-Viewpoints
Add Skin Geometry 
 SIngle Mesh - Multiple Meshes
Skin BIndings: 
  points-Joints-Weights  
Use Displacers with Skin geometry
Non-standard Initial Pose
Prototype Joint/Segment/Site nodes

Motion Capture
Capture Skeleton
Performance Skelton 
 Joint Rotation same as Segment Orientation 
  (if skeleton’s structure is correct)
Data Transport 
  (Whatever to X3D) 

Parent space
Humanoid space
Skeleton space
Segment space
Site space
Skin space
Works Best When all spaces are same space

> From Don: 
Next we will resume weekly efforts to:
- Review existing examples in Basic archive 
  https://www.web3d.org/x3d/content/examples/Basic/HumanoidAnimation 
- start a new HAnim model archive (as long expected)
- copy and check and correct all HAnim1.1/X3Dv3.3 examples
  (reconciling prior incorrect HAnimHumanoid version numbers)
- copy and update relevant examples for HAnim2/X3D4
  (some repetition expected between legacy models and new models)
- copy, analyze, correct (if needed), and maintain all specification examples
- add HAnimMotion examples
- review and admire

Let's talk about it
Thanks and Best, 
Joe

From: Brutzman, Donald (Don) (CIV)
Sent: Wednesday, April 8, 2020 2:05 PM
To: joedwil at earthlink.net; h-anim at web3d.org; John Carlson
Cc: Richard F. Puk; Brutzman, Donald (Don) (CIV)
Subject: HAnim Examples
When: Thursday, April 9, 2020, 1:00 PM - 2:30 PM
Location: X3D zoom line

Joe and Don have reviewed HAnim v2 specification and corresponding X3D4 references.

"We went in and came out, miraculously emerging again!"

Next we will resume weekly efforts to:
- Review existing examples in Basic archive 
  https://www.web3d.org/x3d/content/examples/Basic/HumanoidAnimation 
- start a new HAnim model archive (as long expected)
- copy and check and correct all HAnim1.1/X3Dv3.3 examples
  (reconciling prior incorrect HAnimHumanoid version numbers)
- copy and update relevant examples for HAnim2/X3D4
  (some repetition expected between legacy models and new models)
- copy, analyze, correct (if needed), and maintain all specification examples
- add HAnimMotion examples
- review and admire

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