<html><head><meta http-equiv="content-type" content="text/html; charset=us-ascii"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">There is also LocalFog derived from X3DFogObject, it has the same issue:<div><br></div><div><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">lists limits for the visibilityRange as 0 to minus infinity, for the</span><br style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);"><span style="caret-color: rgb(0, 0, 0); color: rgb(0, 0, 0);">abstract node.</span></div><div><font color="#000000"><span style="caret-color: rgb(0, 0, 0);"><br></span></font></div><div><a href="https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-IS.proof/Part01/components/environmentalEffects.html#LocalFog">https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-IS.proof/Part01/components/environmentalEffects.html#LocalFog</a><font color="#000000"><br id="lineBreakAtBeginningOfMessage"></font><div>
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<div><br><blockquote type="cite"><div>Am 17.10.2023 um 16:26 schrieb Andreas Plesch <andreasplesch@gmail.com>:</div><br class="Apple-interchange-newline"><div><div>https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-IS.proof/Part01/components/environmentalEffects.html#X3DFogObject<br><br>lists limits for the visibilityRange as 0 to minus infinity, for the<br>abstract node.<br><br>https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-IS.proof/Part01/components/environmentalEffects.html#Fog<br><br>list limits for the visibilityRange as 0 to plus infinity, for the<br>concrete node.<br><br>https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-IS.proof/Part01/components/lighting.html#t-foginterpolant<br><br>assumes a positive visibilityRange (and probably should explain that<br>fogVisibility corresponds to the visibilityRange field).<br><br>So I think the abstract node also should list 0 to plus infinity as<br>limits (unless there are historical reasons).<br><br>This is not critical for implementations since Fog is the only<br>concrete node inheriting from X3DFogNode but should be addressed.<br><br>Apologies if this is already addressed in the very latest versions.<br><br>-Andreas<br><br>-- <br>Andreas Plesch<br>Waltham, MA 02453<br><br>_______________________________________________<br>x3d-public mailing list<br>x3d-public@web3d.org<br>http://web3d.org/mailman/listinfo/x3d-public_web3d.org<br></div></div></blockquote></div><br></div></body></html>