[x3d-public] TextureCoordinate point range…should be reduced?

[John Carlson]

Well, it seems like view3dscene is totally accepting of pretty much any
float value.  I don't know what effect it has on the texture yet, but my
texture works with negative texture coordinate point values.  Weird!

On Fri, Nov 24, 2023 at 10:32 PM John Carlson <yottzumm at gmail.com> wrote:

> 18.4.7 TextureCoordinate
>
> TextureCoordinate : X3DSingleTextureCoordinateNode {
>   SFString [in,out] mapping  ""
>   SFNode   [in,out] metadata NULL [X3DMetadataObject]
>   MFVec2f  [in,out] point    []   (-∞,∞)
> }
>
>
> I ran into a case where I was expecting texture coordinate point values from [0,1] in a texture mapping file, and I got values like -99999 an other negative values, which cause me to ignore the triangles and totally foul up the texture.  At this point, I don’t know what negative values mean in a texture coordinate point value and what I should accept for an IFS.  It seems like -99999 is dreadfully wrong, but per the spec above, any float value is acceptable.  I will check the IFS spec, but if no one has a use case, I recommend reducing the range of the texture coordinate point values.
>
>
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