Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: GLG on 2015-03-02, 15:13:56

Title: Strange displacement behavior
Post by: GLG on 2015-03-02, 15:13:56
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...
Title: Re: Strange displacement behavior
Post by: romullus on 2015-03-02, 15:31:37
When you write a post, look for attachment system at the bottom of window. Through it you can attach images to forum.
Title: Re: Strange displacement behavior
Post by: GLG on 2015-03-02, 16:13:55
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
Title: Re: Strange displacement behavior
Post by: GLG on 2015-03-02, 16:15:48
HERE is the second photo with Corona

you will see the strange noise on the side of the starigt displacement. It is not smooth...
Title: Re: Strange displacement behavior
Post by: maru on 2015-03-02, 16:26:38
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.
Title: Re: Strange displacement behavior
Post by: GLG on 2015-03-02, 17:02:07
Ahh, I 've searched for long about displacement problems on the forum but without success..
Thank you
Title: Re: Strange displacement behavior
Post by: Paul Jones on 2015-03-02, 17:32:22
For something such as this modelling would be much much faster, but still it does show how clean vray disp can be.
Title: Re: Strange displacement behavior
Post by: GLG on 2015-03-07, 15:41:35
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...
Title: Re: Strange displacement behavior
Post by: PROH on 2015-03-07, 16:01:57
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.).