Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] General Discussion => Topic started by: bob-cat on 2019-08-21, 11:26:40

Title: Corona Bitmap Issues
Post by: bob-cat on 2019-08-21, 11:26:40

Getting a slightly contrasted bitmap when using the corona bitmap map compared to the standard max bitmap map and viewing on the screen via bridge?
Anyone else got this problem, see attachment.
Max 2016 + Corona V3

Thanks
Troy

Title: Re: Corona Bitmap Issues
Post by: pokoy on 2019-08-21, 11:50:36

You should compare these at 100% if you don't already. If these are scaled down for display, it's likely different filtering that could cause a sharper or softer appearance depending on what the software uses.

Title: Re: Corona Bitmap Issues
Post by: bob-cat on 2019-08-21, 12:00:03

Yes these are at 100%, any other ideas.
I have checked the gamma in the defaultsettings.ini files as well and it seems normal (2.2, 2.2).

Title: Re: Corona Bitmap Issues
Post by: bob-cat on 2019-08-21, 12:06:04

If you, or any could give it a go, that would be great.
Attached is the bitmap?

Title: Re: Corona Bitmap Issues
Post by: romullus on 2019-08-21, 12:24:28

Seems identical to me.

Title: Re: Corona Bitmap Issues
Post by: bob-cat on 2019-08-21, 12:31:26

Ok thanks, I am seeing the difference when you hit the "View Image" button in the bitmap map.
Then zoom into it A 1:1.

They match in the slate editor preview here as well, so not sure which one the material actually uses, the slate editor preview or the "View Image" preview?

If you could please try the "View Image" button?

Title: Re: Corona Bitmap Issues
Post by: pokoy on 2019-08-21, 12:37:26

Maybe... Bridge uses a different profile for viewing, something else than system sRGB which 3dsmax uses?

Title: Re: Corona Bitmap Issues
Post by: bob-cat on 2019-08-21, 12:50:13

Yes maybe, but you can see the difference between the standard max bitmap map, and the corona bitmap map.

update: The over material is the same so must be a viewing thing.

Thanks for the help

Title: Re: Corona Bitmap Issues
Post by: romullus on 2019-08-22, 10:04:53

Quote from: bob-cat on 2019-08-21, 12:31:26

Ok thanks, I am seeing the difference when you hit the "View Image" button in the bitmap map.
Then zoom into it A 1:1.

They match in the slate editor preview here as well, so not sure which one the material actually uses, the slate editor preview or the "View Image" preview?

If you could please try the "View Image" button?

Indeed, preview through "view image", gives different look between native and Corona bitmap loaders, but they renders exactly the same, so i'm not sure if it's worth to report it as a bug. Does precise preview is important to you? Which one do you think is correct, Corona bitmap or native bitmap?

Title: Re: Corona Bitmap Issues
Post by: bob-cat on 2019-08-22, 13:23:34

No problem, now I know.
The native bitmap map preview seems correct to me.

thanks

Title: Re: Corona Bitmap Issues
Post by: sprayer on 2019-08-23, 15:34:18

Also coronabitmap read displacement differently, but nobody talking about it