[x3d-public] Finding required fields (Appearance)

[Joe D Williams]

>  Finding required fields (Appearance) ... 

https://www.web3d.org/documents/specifications/19775-1/V4.0/Part01/components/shape.html#Shape


https://www.web3d.org/documents/specifications/19775-1/V4.0/Part01/components/shape.html#Appearance


https://www.web3d.org/documents/specifications/19775-1/V4.0/Part01/components/shape.html#Material




Please look at the x3d standard. As you mentioned, default geometry is null in Shape. 

If there is a geometry then the Shape Material node is used. For Material there is a default set which would tend to make the geometry visible. For example, default transparency is 0. 

My, my, my, ... how the material node has grown along with PBR for 4.0:)

All Best,
Joe 


Shape : X3DShapeNode {
  SFNode  [in,out] appearance  NULL     [X3DAppearanceNode]
  SFBool  [in,out] bboxDisplay FALSE
  SFBool  [in,out] castShadow  TRUE
  SFNode  [in,out] geometry    NULL     [X3DGeometryNode]
  SFNode  [in,out] metadata    NULL     [X3DMetadataObject]
  SFBool  [in,out] visible     TRUE
  SFVec3f []       bboxCenter  0 0 0    (-∞,∞)
  SFVec3f []       bboxSize    -1 -1 -1 [0,∞) or −1 −1 −1
}

Appearance : X3DAppearanceNode {
  SFNode   [in,out] acousticProperties NULL   [AcousticProperties]
  SFFloat  [in,out] alphaCutoff        0.5    [0,1]
  SFString [in,out] alphaMode          "AUTO" ["AUTO", "OPAQUE", "MASK", "BLEND"]
  SFNode   [in,out] backMaterial       NULL   [X3DOneSidedMaterialNode]
  SFNode   [in,out] fillProperties     NULL   [FillProperties]
  SFNode   [in,out] lineProperties     NULL   [LineProperties]
  SFNode   [in,out] material           NULL   [X3DMaterialNode]
  SFNode   [in,out] metadata           NULL   [X3DMetadataObject]
  SFNode   [in,out] pointProperties    NULL   [PointProperties]
  MFNode   [in,out] shaders            []     [X3DShaderNode]
  SFNode   [in,out] texture            NULL   [X3DTextureNode]
  SFNode   [in,out] textureTransform   NULL   [X3DTextureTransformNode]
} 


Material : X3DOneSidedMaterialNode {
  SFFloat  [in,out] ambientIntensity          0.2          [0,1]
  SFNode   [in,out] ambientTexture            NULL         [X3DSingleTextureNode]
  SFString [in,out] ambientTextureMapping     ""
  SFColor  [in,out] diffuseColor              0.8 0.8 0.8  [0,1]
  SFNode   [in,out] diffuseTexture            NULL         [X3DSingleTextureNode]
  SFString [in,out] diffuseTextureMapping     ""
  SFColor  [in,out] emissiveColor             0 0 0        [0,1]
  SFNode   [in,out] emissiveTexture           NULL         [X3DSingleTextureNode]
  SFString [in,out] emissiveTextureMapping    ""
  SFNode   [in,out] metadata                  NULL         [X3DMetadataObject]
  SFFloat  [in,out] normalScale               1            [0, ∞)
  SFNode   [in,out] normalTexture             NULL         [X3DSingleTextureNode]
  SFString [in,out] normalTextureMapping      ""
  SFFloat  [in,out] occlusionStrength         1            [0,1]
  SFNode   [in,out] occlusionTexture          NULL         [X3DSingleTextureNode]
  SFString [in,out] occlusionTextureMapping   ""
  SFFloat  [in,out] shininess                 0.2          [0,1]
  SFNode   [in,out] shininessTexture          NULL         [X3DSingleTextureNode]
  SFString [in,out] shininessTextureMapping   ""
  SFColor  [in,out] specularColor             0 0 0        [0,1]
  SFNode   [in,out] specularTexture           NULL         [X3DSingleTextureNode]
  SFString [in,out] specularTextureMapping    ""
  SFFloat  [in,out] transparency              0            [0,1]
}


not mention PhysicalMaterial and  UnlitMaterial. 



-----Original Message-----
From: Extensible 3D (X3D) Graphics public discussion <x3d-public at web3d.org>
Sent: Aug 2, 2024 10:34 AM
To: Michalis Kamburelis <michalis.kambi at gmail.com>
Cc: John Carlson <yottzumm at gmail.com>, Extensible 3D (X3D) Graphics public discussion <x3d-public at web3d.org>
Subject: Re: [x3d-public] Finding required fields (Appearance)

I got something for x3d schema, but X3DUOM was blank.  I don’t have my computer and I’m using chrome.  I’m at the airport.
 
Should I use the spec on the road and tooltips? CGE?
 
John

On Fri, Aug 2, 2024 at 9:35 AM John Carlson <yottzumm at gmail.com (mailto:yottzumm at gmail.com)> wrote:
I don’t know if Apple can still prevent other browsers from avoiding Apple’s Safari renderer on iOS.  The issue was that apparently, the pages were blank because I was viewing XML schema and X3DUOM.  Maybe I didn’t wait long enough.  AFAIK, there’s no view source on Safari on iOS?  Anyone know a trick?
 
I was unable to search through X3D JSON Schema on GitHub because the page crashed.
 
I can’t even search through my X3DUOM to JSON schema mapping on a web page which is rendered HTML.
 
I will try chrome unless the Firefox is proved to work on iOS.
 
John

On Fri, Aug 2, 2024 at 7:31 AM Michalis Kamburelis <michalis.kambi at gmail.com (mailto:michalis.kambi at gmail.com)> wrote:
Shape.appearance can be NULL.

I'm not sure about notes of iOS and Safari, it should naturally work
to search GitHub or to browse X3D specs :) You can also install other
browsers, lke Firefox, on iOS.

Michalis

czw., 1 sie 2024 o 17:32 John Carlson via x3d-public
<x3d-public at web3d.org (mailto:x3d-public at web3d.org)> napisał(a):
>
> I’m looking for a way to determine whether an Appearance node is required, viewable  in iOS Safari? Default is NULL in Shape, so I assume not.
>
> I’m going to check X3D JSON Schema.  Safari bombs when searching on GitHub.
>
> Any approach would be great, I may even try vim.
>
> John
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