Import a 3d object:
Choose the mesh object, R click → convert to USD format if they are in obj, fbx, etc
During R click → import option, choose either import as single USD/ merge static mesh (give a single mesh instead of segmented parts)
Choose the mesh imported location, recommending import to Omnivore local server (have to setup before)
Apply material:
If don’t see materials applied on, click create (top left corner), create → material → Omni PBR
Drag the texture img to properties (bottom R corner) → Albedo Map
Make sure the applied PBR layer (if it’s parent layer, set the material strength to be stronger, so as to override the child layer)
Drag the remained texture img (roughness, metallic, etc) to the properties column
In his case, to make a correct UV on material, he rename all textures img from 1001 ending to <UDIM>, hit enter
Lighting:
Create → Light → Dome Light
Prepare a HDRI exr, drag it in Texture File in properities in dome light
In render setting at top R corner, change real time lighting to pathtrace (lower performance but higher accuracy)
If keep in real time lighting, increase roughness max to improve accuracy
Create camera view under perspective icon as follow:
Rendering:
Go to Edit (top L corner) → Preference
Capture Screenshot, tick capture only 3d viewport
To change resolution, click setting icon, then change it:
To change thumbnail of img in browser after export screen shot, R click on the image, choose save thumbnail. R click and refresh if not updated right away
Before screen cap, click show by type and untick all those icons (light, camera, grid,etc) that will appear in the scene