Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: blerimrustemi on 2019-09-06, 11:18:36

Title: strange edges on render
Post by: blerimrustemi on 2019-09-06, 11:18:36

hello guys im switching from vray to corona and having this problem ...

on edges/segments or intersections material has strange appearance ... like some kind of opacity

if someone had the same problem please help

Title: Re: strange edges on render
Post by: twcg on 2019-09-06, 12:20:38

What does the Material-Setup look like?

Title: Re: strange edges on render
Post by: TomG on 2019-09-06, 13:55:10

Do the walls have thickness, and are not just planes?

Title: Re: strange edges on render
Post by: blerimrustemi on 2019-09-10, 08:39:29

Hello guys thanks for your time

the materials are taken from Corona materials library .... eventhou is strange cuse i have to put a scale of 0.5 so the map will be accurate ... or 0.02 on other textures

walls are mostly planes ( detached from extruded cad drawings )

i created a new box , rendered it from the inside and the problem on the edges is still there !!!

Title: Re: strange edges on render
Post by: romullus on 2019-09-10, 09:28:23

Quote from: blerimrustemi on 2019-09-10, 08:39:29

i created a new box , rendered it from the inside and the problem on the edges is still there !!!

Create new box, add shell modifier to it and then render from inside. If lighter edges will disappear, then you will know for sure that it was caused by enviroment light leaking through thin walls.

Title: Re: strange edges on render
Post by: blerimrustemi on 2019-09-10, 13:11:43

HELLO MODERATOR

I TRYED WHAT YOU SUGESTED AND HERE ARE THE RESULTS

AS I SEE IT , THERES A LIGHT COMING IN PLACES WHER OBJECTS INTERSECT WITH EACH OTHER

Title: Re: strange edges on render
Post by: romullus on 2019-09-10, 14:08:08

That is really strange. Could you attach the scene with box and leaking edges, so somebody could take a look at it?

P.S. please, turn the caps lock off, there's no need to shout.

Title: Re: strange edges on render
Post by: TomG on 2019-09-10, 14:33:41

So the walls and ceiling are no longer planes? Planes will lead to this effect, and everything should have some thickness (as everything in the real world has some thickness) - planes may lead to light leaks where they intersect. I ask because on the one hand you said you tried the suggestions, but one suggestion was to make the room a hollow box using the shell modifier, in which case there wouldn't be objects intersecting there, but you say this is happening where things intersect, so....

See https://coronarenderer.freshdesk.com/support/solutions/articles/5000516209-i-can-see-noise-in-the-corners-of-my-scene- for info. Thanks!