Studio white background

[craveiro]

Good afternoon, I need to make images where the background is 100% white, or better yet, I needed to make a render with a mask on the door so I could work on the background for a catalog, in my studio I don't know how to do it, I bought the videos from Gumroad ("The Ultimate Introduction to V-Ray 6 For Cinema 4d") and I've seen videos but I don't understand how to isolate the door in the rendering. Thank you in advance to anyone who can help.

[viktor_angelov]

Hello craveiro There are couple of things you could do to achieve these. I will show you two of those methods.

In order to get a 100% white background there are two steps to be followed:
1. Set the light to be Invisible
2. Go to VFB > Layers > Create Layer > Background, add a Background Layer, enable the Color checker box and choose a color of your liking.

For this test I have chosen blue so it can be better seen, however, you can use 100% white. Please, find the attached picture below useful:



For the second goal of masking the geometry I would recommend using the Cryptomatte Render Element. You will not only be able to pick the mask of the geometry you want but imported into Nuke or Fusion ( or another Multichannel EXR reading software ) you will be able to select geometry via their names.



Please, be aware that for the Cryptomatte to work as expected you need a Multichannel EXR ( Render Settings > V-Ray > Common > Format > Type and select Multichannel )

You can read more about the Render Elements here: https://docs.chaos.com/display/VC4D/Render+Elements

[sirio76]

Here is another quick and easy solution, add cryptomatte RE, add constant layer in VFB with normal blending, select the element via cryptomatte.

[craveiro]

Thank you very much, viktor_angelov and sirio76 for the answers, I haven't been able to test it yet, but as soon as I do I'll let you know how it went.

Best Regards