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Using One Shape to Remove Portion of another Shape in 3D

Posted: Sat Jun 08, 2019 12:15 pm
by estevennewby
I'm trying to determine if there is a way to use one 3D shape to remove a portion of another 3D shape. I know that by joining one 3D shape directly to another, I can tweek the blend mode of the two shapes to Replace and Multiply, which will omit a portion of the attachee shape equal to the size of the attached shape in the form of a mask. And while this will retain 3D geometry, it appears only able to function as a 2D mask. I kind of suck with the technical terms, sorry if I'm not making much sense. I have included a screenshot below to better illustrate what I am able to accomplish. Ultimately, what I am trying to accomplish is a feature I have seen in Blender, in which one 3D shape can cut itself out of another, and leave behind an altered 3D shape.

Can Fusion do this?

Added in 58 seconds:
Of course the picture goes in upside down. Hope you still get the gist.

Image

Re: Using One Shape to Remove Portion of another Shape in 3D

Posted: Sat Jun 08, 2019 2:52 pm
by Tory
Hey Steven,

You might want to take a look at this short thread too.

viewtopic.php?f=16&t=2908

As far as I can tell, fusion can do boolean operations but it is more of a 2D render of it... so depending on what you want to do with the 3d shape it might work. If you are looking for a way to "model" something simple it still might be best to learn a bit of a 3d app like blender?

Then the shape can be rotated etc.

Re: Using One Shape to Remove Portion of another Shape in 3D

Posted: Mon Jun 10, 2019 12:00 am
by SecondMan
Yes, they are called boolean operations. Would be really nice to have in Fusion - for motion graphics alone that would be an utterly awesome feature. But unfortunately no, they are not supported (yet). But let Blackmagic Design know you want it!
estevennewby wrote:
Sat Jun 08, 2019 12:16 pm
Of course the picture goes in upside down. Hope you still get the gist.
If only there was an image processing application that could take images and turn them upside down and... oh wait :D

Kidding aside, holy screen grabs Batman, that's some attachment! ;)

You may have noticed that WSL is a little more generous than most for what attachments are concerned. But nothing is unlimited of course, so before posting a 4MB jpeg, please may you consider this: viewtopic.php?p=16068#p16068

I've adjusted your post accordingly - Imgur.com actually takes care of the orientation and recompression for you so you don't need to do a thing aside from using that button - neat! :)

Thanks, and welcome to We Suck Less!