Materials and sheen setting

Hello, I have created this wood beam model using a jpg of the actual product for the Materials property. To get the material I dropped the jpg onto the polysurface. How do I adjust the sheen of the material from this gloss look to a matte finish?


Any suggestions on how to improve on the image. To make as realistic as possible?

Thank you

You may want to start by finding a closer approximation of the material using something like this from

They provide a fantastic set of PBRs for public use, complete with bump maps and such where needed. Just using a jpg into the colour channel tells Rhino nothing else about the other properties or macro-scale features of the material.

Making a scene as realistic as possible is more complex. You can make the scene more reasonable, but really you will need a more complete scene with proper lighting to make the scene work.

At the moment, even with a complete matte material, it will still reflect diffuse light from the scene, which is dominated by the white studio(?) background.

Thank you for your information and the link David. I briefly looked at the ambientcg site. Would you have an example or know of a tutorial on how to input all of the data provided for each PBR? Is there a difference in Rhino between the JPG vs PNG files? How about the 1K vs the 8K?
Here is a random wood PBR I downloaded


Thank you again for your help.

Usually the PBR file is a zip, and don’t unzip it, you can import it directly via following steps,