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How do I model a pyramid with smooth fillet edges?
Hello Everyone.
Initially this seems very simple but I just can’t figure it out.
All I need is a pyramid with nice smooth fillet edges all round. Just like a cube with filleted caps but a pyramid.
Ways I’ve tried so far:
1. Pyramid highly subdivided in a hypernurbs, with hypernurbs subdivisions set very high. Does the job but with a horrible triangulated edges.2. Pyramid made editable, then bevel all the edges and put inside a hypernurbs. Again…weird edges.
3. Lofted square splines with rounded edges. Top looks horrible.
I’m rendering with Vray and glossy materials – so all shapes need beatifully perfect round edges with no artifacts.
Any ideas?
Thanks in advance. -
6 Replies
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Start with a plane an extrude up and weld the points at the top. Then you can drop it under a hypernurbs. Then adjust it with weighting and inner extrudes.
/randy
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Thanks for the reply Randy.
Wouldn’t that just create me the same a primitive pyramid I’ve already tried?
The problem is primitive pyramids subdivide into triangles and don’t smooth very well in a hypernurbs.
Any ideas?
Thanks in advance.
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Cube – fillet it – make it editable – rotate the cube in H 45° – select the top poly – grow selection until the top edge fillets around the cube are also selected – delete – select one of the corner fillets and the leftover ‘corner’ fillet bits on top of that – move the axis all the way down (Selected/World) – rotate into the center 45° (or -45° depending) – do that for all the corners – join the bits at the top. You get this. There could be a better way but that’s all I could think of.
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This is what i got. https://www.randyarchy.com/rounded.jpg not nearly as rounded as brians but the edges are not sharp. This one was a cube that i welded the points on with two inner extrudes.
/randy -
Great advice Brian and Randy, thanks also for jpeg and C4d file, very useful to see the end results.
I’ve had a go myself on the mini tutorial you post and works a treat.
Crazy that there isn’t an easier way.
Thanks again
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I tried the Pyramid, editable, Edges Mode and bevel, toss that in a HyperNurb and it’s close – done right it has nice smooth corners but because of the HNurb/cage interaction it’s not quite perfect as a pyramid you could play with weighting but that’s tricky to not get hard edges where you don’t want them so I went with the cube.
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