Author Topic: Corona 5 - 2.5D Displacement on Curves  (Read 3137 times)

2019-11-07, 14:48:08

dj_buckley

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Anyone know why my displacement goes funky when it reaches a curve?  The exact same material on both the flat surface and the curve?

2019-11-07, 14:58:36
Reply #1

romullus

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Did you try to switch to classic displacement and see if artefacts are gone?
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2019-11-07, 15:11:27
Reply #2

dj_buckley

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Artifacts remain albeit not as extreme

2019-11-07, 15:25:39
Reply #3

romullus

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Could it be that they are only visible from specific camera angle? If you'd try to rotate the camera, would those artifacts shift to other location or would they remain at the same position?
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2019-11-07, 16:10:40
Reply #4

Frood

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Is this railclone by chance? / Can you show a wire or screenshot with active edges of the object(s)?


Good Luck


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2019-11-07, 17:33:58
Reply #5

dj_buckley

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Nope not railclone.  This is the geometry - simple extruded spline.

2019-11-07, 17:47:53
Reply #6

dj_buckley

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Could it be that they are only visible from specific camera angle? If you'd try to rotate the camera, would those artifacts shift to other location or would they remain at the same position?

Again, if I go more flat on, they are still there, but not as obvious

2019-11-07, 17:53:37
Reply #7

pokoy

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Does it help if you divide the geometry a bit so that you don't have these elongated faces?

The shading/normals look a bit off, too...

2019-11-07, 18:04:18
Reply #8

dj_buckley

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in what way do the shading normals look off

2019-11-07, 18:06:36
Reply #9

Frood

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Yes, I would also try a subdivide 1m or 0.5m mod on top. When 2.5d came to dailies I had a lot strange issues like that but no time to test/investigate in detail. And I was wondering about the lack of displacement tests with straight maps like checker on a cube for instance. Btw: I cannot see any shading in the wood of edges 8]


Good Luck



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2019-11-07, 18:10:12
Reply #10

dj_buckley

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Btw: I cannot see any shading in the wood of edges 8]


Good Luck

Haha gotta get those curves smooth

2019-11-07, 18:16:37
Reply #11

Frood

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Nah, I just admired pokoy's x-ray vision he uses obviously :)


Good Luck



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2019-11-07, 18:27:47
Reply #12

Juraj Talcik

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No I can see it too, could be AA issue (3dsMax by default doesn't do much of it) but also the spline.

Is it smooth in viewport when 'edges' are off ?
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2019-11-07, 19:27:15
Reply #13

Frood

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Über-vision everyone here it seems :) Me cannot judge smoothing groups at all from that screenshot, the fate of mortals.


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Never underestimate the power of a well placed level one spell.

2019-11-07, 19:30:25
Reply #14

romullus

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Don't be sad, you're certainly not alone at this :]
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