Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: cecofuli on 2013-05-15, 17:27:37

Title: Emitter - BUG with CoronaSun
Post by: cecofuli on 2013-05-15, 17:27:37
I found a bug with emitter and VRaySun when the geometry is small. See the image and the .max file in attachment.
When the geometry is small, Corona creates a lot of noise if used with VRaySun.

(*) A4 with default parameters.
(*) You can reduce the geometry size by using XForm modifier

(http://www.francescolegrenzi.com/Temp/140_Bug_Emitter.jpg)
Title: Re: Emitter - BUG with CoronaSun
Post by: Polymax on 2013-05-15, 19:30:35
This is a logical error scale of the scene. Try reducing the size of the plane to 500 cm.
This is not a bug!
Title: Re: Emitter - BUG with CoronaSun
Post by: cecofuli on 2013-05-15, 19:38:03
Polymax, you are right. With VRay I didn't have this problem with 2000x2000 plane (it isn't very big... ) and VRaySun. Good to know =)
Title: Re: Emitter - BUG with CoronaSun
Post by: Polymax on 2013-05-15, 19:46:35
Here is the error in an attempt to render an object the size of 0.5 cm on a plane the size of 2 km.
Quote
With VRay I didn't have this problem with 2000x2000 plane
Because Corona is using a more realistic method of rendering :)
Title: Re: Emitter - BUG with CoronaSun
Post by: Ondra on 2013-05-16, 00:22:30
I'll still investigate it later
Title: Re: Emitter - BUG with CoronaSun
Post by: Polymax on 2013-05-16, 10:04:04
A similar problem:
http://forum.corona-renderer.com/index.php/topic,730.0.html (http://forum.corona-renderer.com/index.php/topic,730.0.html)
Title: Re: Emitter - BUG with CoronaSun
Post by: Ondra on 2013-05-16, 11:23:11
this is probably unrelated
Title: Re: Emitter - BUG with CoronaSun
Post by: Ondra on 2013-05-19, 14:22:57
Fixed, thanks for submitting it! The problem was in the scene scale (too small emitters in too big scene).
Title: Re: Emitter - BUG with CoronaSun
Post by: cecofuli on 2013-05-19, 15:14:21
Great!