Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Bug Reporting => [Max] Resolved Bugs => Topic started by: JG_monomiru on 2016-11-01, 15:04:59

Title: [feedback] Frame Buffer Tone-Mapping strange behavior
Post by: JG_monomiru on 2016-11-01, 15:04:59

I can't really reproduce it - but it sometimes occoures when rendering something.

Corons 1.5 hotfix1 and 3dsmax2017/2016.

When playing with Tone Mapping within the Frame Buffer sometimes when Rendering is finished the Output/Frame Buffer picture changes brightness dramatically....
In some cases i tried to alter White Balance and got a complete darkened result - sometimes i tried only playing with highlight compression or other values within Tone-Mapping and the FrameBuffer becomes dark - like some gamma values were dramatically altered.

It is not really reproducible - sometimes this happens, sometimes not - maybe someone else has figured similar behavior.

I attached 2 images showing the difference - the bright one was the original rendered image - and during rendering you could alter the tone mapping values normally - but sometimes (mostly after rendering) changing either value will result in darkened output.
But i can't be sure if its really just while rendering was done, or also happening during rendering in those cases, where this appeared. Usually i recognized when rendering was finished.

Title: Re: Frame Buffer Tone-Mapping strange behavior
Post by: Ondra on 2016-11-01, 15:07:56

by any chance, werent you touching lightmix controls? Doing so switches the currently displayed render element to lightmix instead of beauty

Title: Re: Frame Buffer Tone-Mapping strange behavior
Post by: JG_monomiru on 2016-11-01, 15:24:24

as far as i know i did not - in these scene i have not used lightmix-renderelement or have touched the light-mix feature.

Title: Re: Frame Buffer Tone-Mapping strange behavior
Post by: Ondra on 2017-03-21, 15:12:47

is this still happening, or was it completely random?

Title: Re: Frame Buffer Tone-Mapping strange behavior
Post by: Ondra on 2017-03-21, 15:13:27

btw: this definitely looks like randomly switching to lightmix or lightselect element

Title: Re: Frame Buffer Tone-Mapping strange behavior
Post by: Ondra on 2017-04-04, 18:26:01

any progress?

Title: Re: [feedback] Frame Buffer Tone-Mapping strange behavior
Post by: JG_monomiru on 2017-04-11, 15:07:17

Hi Ondra - i was absent from forum for a while - well it didn't showed again. So it might be related to just this old version or project.

Did not looked into it again.

Title: Re: [feedback] Frame Buffer Tone-Mapping strange behavior
Post by: Ondra on 2017-04-11, 15:12:20

ok, closing as solved/unreproducible problem