Now that it is selected, V-Ray will generate this channel when you render the image.Īfter rendering the view, you can find the Material ID channel in the upper left side of the frame buffer window in the drop down menu. In that tab, find “Material ID” in the Standard Channels list and select it. To turn on the Material ID channel, open the V-Ray Option Editor dialogue box, and go to the “VFB Channels” tab. Most rendering programs like V-Ray offer the ability to create a Material ID channel. Above is the what the Material ID channel looked like for my view. In this tutorial, I am using V-Ray for Sketchup which automatically generates colors for each texture used in the model. Below is a quick explanation of how I do that. By utilizing Material ID channels and masked groups, I can simply render out a new ID every time I make a change to my design, update the ID layer in my Photoshop file, and then use that new ID to update my masks as needed. This not only streamlines my Photoshop workflow, but also allows me to make quick updates to my Photoshop files later if my design changes. For part two, I want to go into more depth about how I used a Material ID render channel to speed up my material selections and generate these illustrations in a relatively short amount of time.

In part one, I discussed some quick study vignettes of the cliff retreat design.

Vray next sketchup show material