Strange displacement behavior

[GLG]

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:



Corona displacement photo:


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

[romullus]

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

[GLG]

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

[GLG]

HERE is the second photo with Corona

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

[maru]

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.

[GLG]

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

[Paul Jones]

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

[GLG]

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...

[PROH]

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.).