Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] I need help! => Topic started by: shazwan harun on 2018-06-04, 19:33:25

Title: How to get sharp edge image?
Post by: shazwan harun on 2018-06-04, 19:33:25
Hello Guys,

1st image i use corona..(10 minute)..standard setting
2nd image i use vray..converted to vray..(also 10 minute)..also standard setting..

You all can see the different between two images..in vray.. i can get sharp image..with nice edges but in corona the image looks blur..did i do something wrong..i can see everyone post the rendering using corona with sharp and clear image with standard setting..can you all help me..already searched for it on the internet..but still cannot find the answer..

Thanks..
(sorry for my broken english)
Title: Re: How to get sharp edge image?
Post by: pokoy on 2018-06-04, 19:41:59
There's a blur/sharpen checkbox right in the VFB. Either that, or use an image filter that produces sharper results. The VFB sharpen filter however should do the trick.
Title: Re: How to get sharp edge image?
Post by: shazwan harun on 2018-06-05, 16:24:58
thank you pokoy
i used already blur/sharpen checkbox in the VFB..o.5..even i put 1.0..maximum..also cannot produce like vray..by the way..what is VFB  sharpen filter? i cant find it..if it is blur/sharpen checkbox in the VFB..already tried it..
Title: Re: How to get sharp edge image?
Post by: romullus on 2018-06-05, 16:35:35
Judging by the images in the first post, the real problem here is not the lack of sharpness, but the way Corona washes out the gaps between cabinets doors. This might be because your albedo (https://coronarenderer.freshdesk.com/support/solutions/articles/5000515614-what-is-albedo-) is too high or because the cabinets themselves aren't modelled correctly (https://forum.corona-renderer.com/index.php?topic=17057.0).

You could try to lower albedo, fix models or just add occlusion map to the material, so the gaps would appear darker.
Title: Re: How to get sharp edge image?
Post by: sprayer on 2018-06-06, 09:16:11
romullus

vray also not good in this picture, you can see at ceiling GI artifacts what produce dark shadows.

by the way at forum was similar topic about dark shadows between doors, problem was in 3d model