FBX Advanced Settings - Texture Preset Section

• Texture Preset: Enables a suite of texture export configuration presets. Selecting Unity or Unreal after activation dynamically reconfigures the output texture channel combinations and shader mappings. This controls the entire texture export strategy rather than individual texture maps.
• Unity: Configures channel outputs according to Unity specifications. The exporter packs basic PBR channels along with Unity-standard data such as HDRP, MetallicAlpha, and AO, ensuring maps are ready for immediate use on the Unity side.
• Unreal: Configures channel outputs according to Unreal Engine specifications. The exporter packs basic PBR channels along with Unreal-standard data such as ORM (Occlusion, Roughness, Metallic), Specular, and AO to facilitate direct connection within the Unreal Material Graph.