topic Re: Darker renderings in AC21 compared to AC20 in Visualization

Darker renderings in AC21 compared to AC20

Anonymous — Thu, 11 May 2023 09:54:33 GMT

I have opened plns worked with AC20 with the new AC21 - I chose migrate libraries but that's not the case i think- and i used preset scene "indoor daylight medium - physical" and made some renderings.
When compared to identical renderings i have done with AC20 i noticed that in AC21 they appear darker but mostly importantly like the light bounces less times than in AC20 so the things in the shadows are grey (See images below). Any ideas or i it just my idea?

p.s tested with two pls so far and the results are the same

Re: Darker renderings in AC21 compared to AC20

Daniel Kovacs — Tue, 03 Jul 2018 15:30:27 GMT

Hi,

The rendering engine is usually upgraded from version to version, so the set of cinerender settings become different. As a result, the default rendering scenes need to be fine-tuned to provide similar quality and speed with the new settings as well.

I think simply that's what is making the difference. (I actually prefer the darker one with better shadows and reflections).

Regards,

Re: Darker renderings in AC21 compared to AC20

Anonymous — Tue, 31 Jul 2018 17:49:12 GMT

Thanks for the answer dkovacs ! (i thought i would get an email if someone posted a reply so i didnt check the thread for a while)
i think it is as you wrote it.

p.s so far i havent found what changed from presets scenes of ac20 to ac21 but i will give it another try. if i find something i will post it

Re: Darker renderings in AC21 compared to AC20

Erwin Edel — Thu, 02 Aug 2018 09:56:36 GMT

If you save your settings in ARCHICAD20 as a scene and export it and then import in ARCHICAD21, you get different results, or are you using something like Interior Daylight Fast or similar named in preset in both versions? Because these could be different indeed.

Re: Darker renderings in AC21 compared to AC20

Anonymous — Thu, 02 Aug 2018 21:52:39 GMT

Yes Erwin I have been using lately the preset scenes that come with Archicad cause I find them quite good for my likes (in the pics above was indoor daylight medium (physical).
So, to figure it out I created a new project from scratch in AC21 (made a simple draw 4 walls two slabs and some windows and some objects inside) and choose indoor daylight medium (physical) and compare all the settings for indoor daylight medium (physical), with the settings from the project that was created with ac20 and then‘ve opened it and I continue working with the AC21. I found a lot of parameters to differ so that was the answer.
The only thing that bugs me is why the settings of the presets were changed while importing a drawing for earlier version to ac21 compared to a project freshly created in AC21?
P.S I will try to export a scene from ac20 and import it to ac21 just to be sure as Erwin suggesedt! Again thanks you both for taking the time to help!