Does anyone use the "ACES tone mapping" option?

Forums: Does anyone use the "ACES tone mapping" option?
Sub forum for bug reports

Moderator: aoktar

Forum rules
Before posting a bug report, please check the following:
1. That the issue has not already been disclosed
2. That the issue is specific to this plugin, and not Octane in general (Try reproducing it in Standalone)
Bugs related to the Octane Engine itself should be posted into the Standalone Support sub-forum.


All bug reports should include the information below, along with a detailed description of the issue and steps to reproduce it.
A. Operating System, including version (i.e. Win 7, OSX 10.11.2, Ubuntu 14.04, etc.)
B. Graphics Card(s) model (i.e. GTX 580 - 3GB, TITAN, etc.)
C. RAM Capacity (i.e. 6 GB)
D. Nvidia driver version (i.e. 7.50, 7.5.22)
E. OctaneRender Standalone version, if installed (i.e. 2.24.2, 2.23, etc.)
F. OctaneRender plugin version (i.e. v2.25 - 2.21)
G. Host application version, including build number if available (i.e. 3ds Max 2016 Build 18.0)
H. A detailed description of the issue and steps to reproduce it (Include Screenshots or video capture), as well as an example scene if applicable.
I. Copies of the Octane Log window and Console window outputs (full text attached as a file to your post is recommended).


Please note that reports of issues inside existing threads will be ignored/removed, and reports may be closed if the reporter does not respond to subsequent queries in the thread.

Does anyone use the "ACES tone mapping" option?

Postby boxfx » Thu Jan 25, 2024 6:00 pm

boxfx Thu Jan 25, 2024 6:00 pm
Without getting into a mountain of colour workflow, bit depth, file format headaches, has anyone used the simplified "ACES Tone Mapping button on the camera imager tab with any success? It seems to handle highlights and white objects ok, but it absolutely crushes any dark shades into oblivion, rendering it fairly useless to me.

Am I missing something? from what I can tell, that option deactivates almost every other camera imager parameter except for the exposure slider. I almost get the feeling im supposed to enable some sort of linear colour space mode, but I cant find anything that affects the live view to bring dark colours up to anything usable, the plus the manual states it is designed to save out a standard srgb 8 bit image. The only way I can get close is to crank the exposure all the way up to 3 or 4, but by the time the black objects start revealing themselves, the white parts have gone thermo nuclear.

How is it intended to be used, just with 32 bit renders and post colour grading?
boxfx
Licensed Customer
Licensed Customer
 
Posts: 220
Joined: Fri Apr 27, 2012 9:13 am

Re: Does anyone use the "ACES tone mapping" option?

Postby aoktar » Thu Jan 25, 2024 6:02 pm

aoktar Thu Jan 25, 2024 6:02 pm
Is this a bug related post?
Octane For Cinema 4D developer / 3d generalist

3930k / 16gb / 780ti + 1070/1080 / psu 1600w / numerous hw
User avatar
aoktar
Octane Plugin Developer
Octane Plugin Developer
 
Posts: 15969
Joined: Tue Mar 23, 2010 8:28 pm
Location: Türkiye

Re: Does anyone use the "ACES tone mapping" option?

Postby boxfx » Fri Jan 26, 2024 10:42 am

boxfx Fri Jan 26, 2024 10:42 am
apologies, wrong sub forum
boxfx
Licensed Customer
Licensed Customer
 
Posts: 220
Joined: Fri Apr 27, 2012 9:13 am

Re: Does anyone use the "ACES tone mapping" option?

Postby elsksa » Fri Jan 26, 2024 4:08 pm

elsksa Fri Jan 26, 2024 4:08 pm
Hi, I'd suggest this ACES Octane "guide" as a reference.

This is the infamous ACES look which may look worse with an unsuited (panel, contrast, etc)/uncalibrated monitor and only the tip of the iceberg. It also skews color wildly. It's quick and dirty to avoid clipping (better than the archaic native camera imager options) but not beneficial as part of the color pipeline.

The page explains how it is meant to be used but I'll spoil it a bit: as a in-rendering (during render previews) image conformation (since the default sRGB EOTF will do as worse but less "pleasingly"). AgX OCIO is the (only*) way to go.

*as the single public and gratis solution in the present day
elsksa
Licensed Customer
Licensed Customer
 
Posts: 784
Joined: Sat Jul 24, 2021 1:06 am

Return to Bug Reports


Who is online

Users browsing this forum: No registered users and 2 guests

Sat Apr 27, 2024 9:11 am [ UTC ]