Converted glTF model showing use of Tangent node for advanced Physically Based Modeling (PBR) effects. Tangent is developmental in X3D version 4.1 draft specification.
outcast945 https://sketchfab.com/outcast945
CC-BY-4.0 http://creativecommons.org/licenses/by/4.0/
castle-model-viewer, https://castle-engine.io/castle-model-viewer
X3D-Edit 4.0, https://www.web3d.org/x3d/tools/X3D-Edit
X3D 4.1 Architecture, ISO/IEC 19775-1:202x, 11 Rendering component, 11.4.13 Tangent
X3DJSAIL https://www.web3d.org/specifications/java/X3DJSAIL.html
Cat by Maru conversion from SketchFab to glTF to X3D
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"textures/material_baseColor.jpeg" "https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GltfSampleModels/textures/material_baseColor.jpeg"
"textures/material_metallicRoughness.png" "https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GltfSampleModels/textures/material_metallicRoughness.png"
"textures/material_1_normal.png" "https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GltfSampleModels/textures/material_1_normal.png"
"textures/material_1_baseColor.png" "https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GltfSampleModels/textures/material_1_baseColor.png"
"textures/material_1_metallicRoughness.png" "https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GltfSampleModels/textures/material_1_metallicRoughness.png"
"textures/material_2_baseColor.jpeg" "https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GltfSampleModels/textures/material_2_baseColor.jpeg"
"textures/material_3_emissive.jpeg" "https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GltfSampleModels/textures/material_3_emissive.jpeg"
"textures/09_-_Default_emissive.jpeg" "https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GltfSampleModels/textures/09_-_Default_emissive.jpeg"
"textures/09_-_Default_normal.png" "https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GltfSampleModels/textures/09_-_Default_normal.png"
"textures/09_-_Default_baseColor.jpeg" "https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GltfSampleModels/textures/09_-_Default_baseColor.jpeg"
"textures/09_-_Default_metallicRoughness.png" "https://www.web3d.org/x3d/content/examples/X3dForAdvancedModeling/GltfSampleModels/textures/09_-_Default_metallicRoughness.png"