Chaos Corona for Cinema 4D > [C4D] Daily Builds

displacement issue

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elaraisawhale:
on the latest daily build (v8 03-12-2021) i noticed this thing and i'm gonna ask you if is a bug or not.
basically on a simple cube i added a noise map (with contrast cranked up) as displacement, cubic projection, and the displaced part close to the edges seems "shifted". shouldn't be straight? i know my english is not good, so i added an image to show you what i'm trying to explain.
if is not a bug, sorry for my stupid question.
thank you

andeltoz:
I confirm what elaraisawhale reported, the displacement seems to propagate from the center of the object outwards. UVW Map and Cubic Map test.
Imac 2020 27 inches, macos Big Sur, Cinema 4D R21

romullus:
It's either that, or teared mesh at the sharp edges, pick your poison. At least you can fix this issue quite easily - just add support loops near every edge and you should have much better outcome.

swiat3d.net:
Yep, something is wrong.

Simple cube and editable cube with extra edges.
Projection: Cubic and UVW Mapping (default), same result.
Materials: Physical and Legacy, same result.

Cinema R20.059, Win 10, Corona Version: 8 (DailyBuild Dec  1 2021)

romullus:
I think at this point you should ask yourself, what result do you really expect to see? From the last examples, i can clearly see that displacement is working as expected - between support loops, it is displacing strictly perpendicular to the surface and between the edges and support loops, displacement direction is gradually leaning towards the edges to flush meet with the other surface. Alternative to this, would be big gaps in mesh at the hard edges, that's how Corona displacement used to work many versions ago and nobody liked it.

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