We’re creating an option for our client to have a timber roof on the deck (see 1st pic)
When I hide the timber roof to show the view with out it, I noticed that the lighting on the interior changes and gets darker (white wall & interior timber frame)
The settings are all the same between the two images
The Skecth-Up View is the same, I’m only selecting the timber roof & hiding it.
There’s one independent point light in the interior (I made sure it’s not hiding with the Timber roof.
I’m using a skybox, no changes between views
Using Ultra settings
No depth of field.
The file place has an Emissive material
Why’s that happening and how can I fix it?
1- Image with Timber roof option (color is correct)
It’s auto exposing, there’s more light coming from the outside without the roof so it’s automatically lowered the exposure ‘for the whole scene’ to compensate.
You could try turning off auto exposure in the settings and adjusting the value to suit both setups.
I’m not the best to ask as I tend to throw settings at things and stop when it looks ok.
You’re very close to the doors in that view, you may want to try turning AE back on and back up a bit so there’s more of the room (less of the sky) in the shot, the exposure will be better/more balanced and you can always crop the rendered still after.
When I’m setting up shots for my DTP colleagues I set up what ‘I’ think is a good shot and then back up a bit before saving the scene, this way they can crop the resulting render down in Indesign to what they ‘need’ for their compositions.
To me it is mostly convenience setting.. Works very well in outside views which is my majority. As well works well if You want to use one settings for many different time views and angles. We used to think that whole day is the same bright gets a bit dark in the twilight and them is dark.. There is a whole spectrum. without auto-expose if You adjust your shadow settings then You will have to change your expose settings too. Aspecially evening conditions where even 1 minute difference makes it visibly darker or brighter. Even rotating view from brighter to darker side of building will make it look over exposed on manual setting..
So I usually leave it on, absolutely on when I am still on adjusting my views.. and change to manual if something doesn’t work out. Similar with auto-contrast though this one is by default off.
Usually need to go too manual only on interior and night views.
Auto exposure works great for example if you are just trying to navigate between indoor and outdoor perspectives, without having to constantly adjust the exposure manually. On top of that it also boils down to final preferences so for example in the renderings you’ve shared the interior area may be a bit darker, but as a trade-off the sky is not overblown in terms of exposure.
In many cases further fine-tuning the exposure after you found a good perspective is recommended though and what most of our users do for their final renderings.
Hence the correct use is basically being aware that auto exposure can only estimate the value based on what it “sees” currently on screen - From that point you can then add those final touches and make sure they are saved in your settings.
