Exterior render is largely overexposed

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jerry_arns
Posts: 4
Joined: Sun Nov 17, 2019 8:47 pm

Exterior render is largely overexposed

Post by jerry_arns » Sun Nov 17, 2019 9:18 pm

Hi everyone,

I'm new to Twilight Render. I'm exploring rendering and have satisfying results with interior renders (see attached image).
interior, ok
interior, ok
Maison_light_o3_Scene 3.jpg (340.82 KiB) Viewed 4376 times
But I can't get correct renders for exteriors. Image is overexposed, whites are burned (so post processing is no good).

I tried to decrease Sun strength from 5 to 2 but this made the image darker without improving the render (like I would reduce brightness in post on a burned image).
exterior, overexposed
exterior, overexposed
overexposed.jpg (453.04 KiB) Viewed 4376 times
It seems to me that the exposure is set to the inside of the house rather than the outside.

Any quick tips before I upload a simpler version of this model ?

Fletch
Posts: 12897
Joined: Fri Mar 20, 2009 2:41 pm
OS: PC 64bit
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Re: Exterior render is largely overexposed

Post by Fletch » Mon Nov 18, 2019 11:40 am

Bienvenue jerry_arns , :hat:

It appears perhaps you have increased the exposure in the Render Dialog to be appropriate for the Interior rendering, but when rendering for exterior the exposure needs to be set to 1. Sun of 4 or 5 is usually perfect.
Attachments
exposure.jpg
exposure.jpg (42.91 KiB) Viewed 4371 times

jerry_arns
Posts: 4
Joined: Sun Nov 17, 2019 8:47 pm

Re: Exterior render is largely overexposed

Post by jerry_arns » Mon Nov 18, 2019 7:21 pm

Thanks!

I knew it was a basic mistake :D

The thing is, I assumed the post process exposure parameter was... post process, that is, applied after the rendering.

I set it back to 1 and tadaa:
fixed.jpg
fixed.jpg (545.35 KiB) Viewed 4360 times
(I know there are many things wrong in this render. Now that I understand exposure, I can start working on my textures and environment).

Fletch
Posts: 12897
Joined: Fri Mar 20, 2009 2:41 pm
OS: PC 64bit
SketchUp: 2016-2023
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Re: Exterior render is largely overexposed

Post by Fletch » Mon Nov 18, 2019 9:02 pm

:^:

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