[x3d-public] Should the emissiveColor field be defined in X3DOneSidedMaterialNode?

[Holger Seelig]

In the latest version of the spec (4.1), the base class X3DOneSidedMaterialNode does not include the field emissiveColor in this class. It is first defined In derived classes of this base class with indeed different and deliberately other values.

X3DOneSidedMaterialNode (Draft):
https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4.1-CD/Part01/components/shape.html#X3DOneSidedMaterialNode

Best regards,
Holger

—
Holger Seelig
Leipzig, Germany

holger.seelig at yahoo.de
https://create3000.github.io/x_ite/
https://patreon.com/X_ITE



> Am 09.09.2025 um 19:36 schrieb microaaron via x3d-public <x3d-public at web3d.org>:
> 
> There are contradictions in the V4.0 specification.
> 12.3.4 X3DOneSidedMaterialNode <https://www.web3d.org/documents/specifications/19775-1/V4.0/Part01/components/shape.html#X3DOneSidedMaterialNode> says "The emissiveColor field is defined in implementing nodes".
> But 12.4.10 UnlitMaterial <https://www.web3d.org/documents/specifications/19775-1/V4.0/Part01/components/shape.html#UnlitMaterial> says "This node inherits the emissiveColor field from the X3DOneSidedMaterialNode ancestor, but the default value of this field changes: only for UnlitMaterial, the default emissiveColor is 1 1 1 (white), instead of 0 0 0 (black, default of X3DOneSidedMaterialNode.emissiveColor)".
> Should the emissiveColor field be defined in X3DOneSidedMaterialNode and default to black?
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