Revit materials that use custom Image Textures will appear grey or a flat colour without the image if the image cannot be "found" by Revit.
All libraries on BIMcontent.com that use custom Image Textures have the additional download type of "Material Images". This contains all Material Texture Images for that brand's library, not just for one product or range. This means the process of downloading and linking the Image folder to Revit needs to be done just once.
After downloading the Material Texture Images for the selected brand, follow the steps below to "point" Revit to these images:
Step 1 - If your office has an existing location for Material Assets, copy all associated Material Texture Images into the given folder. Alternatively, create a local folder on your computer to place all custom Material Assets into
Step 2 - Once images are in the correct location, in Revit, select 'File', then select ‘Options’.
Step 3 - In the Options dialog, select ‘Rendering’ then the green plus ‘+’ button.
Step 4 - Paste the folder path from Step 1, or select the three dots, and navigate to that folder, then select ‘OK’.
Once this has been completed, any previously opened view set to realistic will need to be changed to shaded, then back to realistic to see the changes.
After this Material Images folder has been established, Steps 2, 3 and 4 do not need to be repeated for each brand, simply copy the images into the same shared folder. If multiple versions of Revit are in use, Steps 2, 3 and 4 do need to be repeated for each Revit version.