Strange displacement behavior

Corona Corona for 3ds Max Help Required
1

Hi,
I’m just starting using Corona and I cannot change the displacement quality on a former Vray scene I made.
The displacement is working but the shape is not correct at all.
I should have a straight line displaced but there are like noises on the sides.
Look on the photos to understand.

Vray displacement photo:
!(http://F:\Corona/Test resto Vray.jpg)

Corona displacement photo:
!(http://F:\Corona/Test resto Corona.jpg)

Well, it seems that I don’t know how to put a photo on the post…I’m sorry…

2

When you write a post, look for attachment system at the bottom of window. Through it you can attach images to forum.

3

Ahh, Just seen it, sorry…
here are the 2 photos then

Vray displacement photo:

Don’t pay attention to the render, it’s just a test

Test resto Vray.jpg
Test resto Vray.jpg868×576 83.7 KB

4

HERE is the second photo with Corona

you will see the strange noise on the side of the starigt displacement. It is not smooth…

Test resto Corona.jpg
Test resto Corona.jpg868×576 80 KB

5

Hi, there was a similar thread before:
https://forum.corona-renderer.com/index.php/topic,5967

The solution is to use displace modifier or different map for displacement.

6

Ahh, I 've searched for long about displacement problems on the forum but without success..
Thank you

7

For something such as this modelling would be much much faster, but still it does show how clean vray disp can be.

8

Yes, it’s a real pain to use displacement in corona…
displacement is an everyday tool, impossible to not use it in many circumstances…
I hope Corona’s team will hear our need, eh,eh…

9

Yes, Corona displacement can be improved. But the point is, that no matter what renderer you use, it will always be better (+ less CPU demanding) to model this kind of geometry (straight corners etc.).