Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: elindell on 2015-06-22, 21:48:53

Title: [BUG] 1.1.1 coronabitmap blurriness and image width/height ratio
Post by: elindell on 2015-06-22, 21:48:53

Hi, I updated to 1.1 today and converted an old scene to test the new corona bitmap speed increase. Immediately I noticed a lot of my textures were blurry, basically unusable. I'm pretty sure it has to do with the ratio of width/height of the texture (square size texture render fine but anything more elongated gets very blurry the more elongated)

I created an exaggerated example for you to test and I think they clearly show something is odd. I'm using corona 1.1.1
I do not mess with the blur setting at all as I never have need to before. Included testing file is saved max 2015 file.
(http://i.imgur.com/AJJC8v7.jpg)

-in the attached jpg the first bar is a texture 2000x50 pixels using standard max bitmap

-the second bar is the same texture using new corona bitmap

-the third bar is another elongated sample using corona bitmap, below it are two square planes the one on the left is is using a 50x50 pixel map as you can see its much less blurry (showing square texture render fine), the one to the right of that is using a 2000x50 pixel map with an adjusted uvw modifier just to test to see if the scale of an object is affecting everything, still blurry.

Maybe I am missing a setting that will fix this, otherwise I hope this is realized as a bug and can be fixed (I hope no one comes in chiming I shouldn't be using non-square textures, I do a lot of arch vis for trade show booths and so stuff like banners and video walls use non square ratios for graphics and it would be a big pain to resize them into square formats.

Thank you

Title: Re: [BUG] 1.1.1 coronabitmap blurriness and image width/height ratio
Post by: maru on 2015-06-23, 10:43:15

Something is wrong indeed.

Title: Re: [BUG] 1.1.1 coronabitmap blurriness and image width/height ratio
Post by: cecofuli on 2015-06-25, 18:32:07

Same problem here (with a long road texture)
I must to use 3ds max bitmap.

Title: Re: [BUG] 1.1.1 coronabitmap blurriness and image width/height ratio
Post by: hubrobin on 2015-07-01, 11:32:38

Hey guys,

thanks for the data provided. There was a bug in filtering. The fix will be available in the nearest release.

Title: Re: [BUG] 1.1.1 coronabitmap blurriness and image width/height ratio
Post by: Specto3d on 2015-07-23, 09:03:06

But if you set Filtering blur value to zero, problem disappears...

Title: Re: [BUG] 1.1.1 coronabitmap blurriness and image width/height ratio
Post by: Ondra on 2015-07-23, 09:53:10

this is already fixed in the latest daily build - you can try it