Inspired by a Reddit post where they tried to make this exact same form using standard NURBS geometry – and failed to get it closed. Professor Dave saves the day with fast and easy Sub-D tricks. Even better, this solution is infinitely editable.
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As per that youtube comment:
The problem with this, and multipipe and subD in general is that 4 sides is nowhere near a true circle.
I haven’t seen the original reddit thread but if this question was asked regarding a part that needed to be properly round then this doesn’t really solve it unless all you’re after is some geometry to render. Parts like this typically need to be perfectly round for a reason.
This is a fair point. My goal was to build it quickly, easily and make it 100% editable.
You bring up the point "Hey, it’s not a perfect circle!’ which is correct, but not the goal stated.
However, I love a nerd challenge! In response to this comment, I went back into the geometry lab and developed ‘hack-nique royale’ to get the elbow joint connecting to a perfect eight sided pipe on all three ends. Behold!
Then you can just fillet cylinders. Any sort of ‘fancier’ softer corner than that is in the realm of ‘freeform’ geometry where there is NO “true cylinder solution” that exists in math no matter how you try to slice it.
First of all, try that with three pipes at all three axes. It’s a lot harder for all methods.
Also, you missed the original problem and my goal. I’ll repeat:
The problem stated was that the surfaces did not close. The second problem was that it was not editable and the third problem was that it took a long time. Three things.
My solution #1 [video] was fast and easy and editable, just not accurate enough for some. My solution #2 [image] included extra steps, was as accurate as NURBS, but STILL editable.
I often speak of NURBS solutions as ‘modeling yourself into a corner,’ or a ‘3D dead end.’ Any changes? Start over from the beginning.
With Sub-D, you maintain the ability to refine forms as needed. Of course, if the design is done / fixed, then by all means use pipes and fillets to get it done with ‘no looking back.’ Totally valid workflow.
Eh, it’s alright. A bit of manual filleting needed.
I was just saying to the guy complaining that your solution doesn’t have perfectly round cylinders that if you want to do anything more than this, “perfectly round” is out the window anyway.
Hey @JimCarruthers I like the way you did it! Well done.
How does yours look with the Analyze > Surface > Environmental Map?
