<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><span>glTF has an extension KHR_materials_emissive_strength:</span><div><span><br></span><span><a href="https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_materials_emissive_strength">https://github.com/KhronosGroup/glTF/tree/main/extensions/2.0/Khronos/KHR_materials_emissive_strength</a></span></div><div><span><br></span><span>Test files and screenshot here:<br><br><a href="https://github.com/KhronosGroup/glTF-Sample-Models/tree/master/2.0/EmissiveStrengthTest">https://github.com/KhronosGroup/glTF-Sample-Models/tree/master/2.0/EmissiveStrengthTest</a></span></div><div><span><br>To implement this in X3D there is a need for a new field in X3DOneSidedMaterialNode<br><br>X3DOneSidedMaterialNode {<br> …<br> SFFloat [in,out] emissiveStrength 1 [0, ∞)<br>}<br><br></span><div><span>It would be nice if we could add this.</span></div></div><div><span><br></span></div><div><span>Best regards,</span></div><div><span>Holger</span></div><div><span><br></span></div></body></html>