Why channel-packed ORM textures render wrong in Unity and Unreal
Metallic looks flat gray, roughness looks inverted: here's why ORM channel packing reads differently in Unity, Unreal Engine 5, and Godot.
Pbr — 3D Modeling Articles
5 articles tagged pbr. Tutorials and workflow notes for getting 3D assets into Unity, Unreal Engine 5, Godot 4, and Blender.
Which engines actually support KTX2-compressed GLB textures
Unity, Godot and Unreal Engine 5 handle glTF's KHR_texture_basisu KTX2 extension very differently — here's which ones actually transcode compressed GLB textures and how to check before you ship.
Fix the 'material not compatible' error in Three.js WebGPU
Three.js WebGPURenderer throws 'material not compatible' on glTF imports built with MeshStandardMaterial. Here's why the node conversion fails and the exact fixes that work.
Unity's glTF shader breaks under HDRP ray tracing
Enable Ray Tracing in an HDRP project and every glTFast-imported material throws "Opcode Sample not valid in shader model lib_6_3" — here's why, and two ways to fix it without waiting on a glTFast patch.
Apple killed usdzconvert — what still works for glTF to USDZ
Apple discontinued usdzconvert and delisted Reality Converter, so here's the current, working path for glTF-to-USDZ conversion — including which material extensions silently disappear and the zip-packaging bug that…