100组Substance材质预设 Artstation – 100 Smart Material Bundle + Tutorial + Unique Materials包含100组Sustance材质预设，PBR贴图材质，spsm格式，也包含官方视频使用教程100 Unique Smart MaterialVideo TutorialPBR Textures For Roughness And Metalness WorkflowSPSM File  FormatDoesnt Need Any Additional PluginsAll Materials Are Correctly Named