Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: fobus on 2015-11-19, 09:22:00

Title: Reflection bug - ugly distortion
Post by: fobus on 2015-11-19, 09:22:00
Found strange bug with reflection. Near 0 degrees angle there is an ugly distortion in reflection present.

Look at video.
There are only plane with "mirror" reflection and sphere with light material. As the camera going down to nearly lay on the plane reflection distorts.

Sample file attached.
3ds max 2014 sp5. Corona 1.3
Title: Re: Reflection bug - ugly distortion
Post by: romullus on 2015-11-19, 09:47:37
Looks like duplicate of this (?): https://forum.corona-renderer.com/index.php/topic,10034.0.html
Title: Re: Reflection bug - ugly distortion
Post by: fobus on 2015-11-19, 13:41:19
I don't think that.
Have tried to:
When moving the plane away from scene origin, the problem disappears. Fix will be possible, but it will take some time, so stay tuned
but had no successes. More of that. I've got an error  multiplied with jagged edges!
Title: Re: Reflection bug - ugly distortion
Post by: maru on 2015-11-19, 14:07:45
What is the scale of this scene? Isn't this something extremely tiny? I will try to reproduce this...
just found the scene ;)
Title: Re: Reflection bug - ugly distortion
Post by: maru on 2015-11-19, 14:22:48
Ok, this is strange... I started thinking that maybe this is something physically accurate, but then tested it with other renderers.

:S
Title: Re: Reflection bug - ugly distortion
Post by: pokoy on 2015-11-19, 14:47:40
I came across this in a scene with a very flat looking camera where reflections of a car's wheel looked really strange but thought it's just the way reflections in Corona works. Never thought of recreating this with a simpler approach, though.

Would like to know whether it's expected or a bug.
Title: Re: Reflection bug - ugly distortion
Post by: fobus on 2015-11-19, 14:58:13
I found it trying to reach reflections of island in the sea with very long focal length camera. And now I'm stuck... HOW it may be???
Title: Re: Reflection bug - ugly distortion
Post by: pokoy on 2015-11-19, 19:21:39
What if you move the whole scene 50 meters up in Z-axis? Silly idea, I know, but who knows...
Title: Re: Reflection bug - ugly distortion
Post by: fobus on 2015-11-20, 11:13:10
What if you move the whole scene 50 meters up in Z-axis? Silly idea, I know, but who knows...

Nothing good. Bad bug. I has really switch to Vray то render scene. Sad...
Title: Re: Reflection bug - ugly distortion
Post by: Ondra on 2016-08-19, 13:37:17
Fixed
Title: Re: Reflection bug - ugly distortion
Post by: fobus on 2016-08-22, 05:15:28
Good news