Regression: Stereoscopic renders in 3.3.1 remove contrast and raise exposure upon saving file #103888

New Issue

Dark Zalivstok · 2023-01-14T20:57:55+01:00

Dark Zalivstok commented

2023-01-14 20:57:55 +01:00

System Information
Operating system: Windows 11
Graphics card: GeForce 3090 Ti

Blender Version
Broken: 3.3.1
Worked: 3.3.0

Short description of error
Rendering a scene with stereoscopy causes the scene to be overexposed and lose contrast, but only once you've saved the image to your drive.
Color Management is completely ignored unless you use the node "Convert ColorSpace" within the compositor, which requires a good bit of tinkering to get your desired look.

I've replicated this across multiple projects, using both Blender 3.3 and 3.4. I've even sent my project files off to other artists and had them duplicate the bug.
I only realized it was the "stereoscopy" setting when I stopped a test render by accident, and decided to save it. anyways to see how it looked.
The View Transform profile and look carried over, unlike the prior stereoscopic image.

Here is the scene rendered in Blender:

Here is the saved image, but with stereoscopy turned off:

And here is how the saved image looks with stereoscopy turned on:

As you can see, the exposure is much higher, and there is less saturation. Possibly less contrast as well, but that could just be a byproduct of the exposure being higher.

Exact steps for others to reproduce the error

Open attached .blend file (camera all set up, 'Stereoscopy' and all settings ready to go)
render the image
save resulting image
Compare the image to your render viewport

Room Example 1.blend

**System Information** Operating system: Windows 11 Graphics card: GeForce 3090 Ti **Blender Version** Broken: 3.3.1 Worked: 3.3.0 **Short description of error** Rendering a scene with stereoscopy causes the scene to be overexposed and lose contrast, but only once you've saved the image to your drive. Color Management is completely ignored unless you use the node "Convert ColorSpace" within the compositor, which requires a good bit of tinkering to get your desired look. I've replicated this across multiple projects, using both Blender 3.3 and 3.4. I've even sent my project files off to other artists and had them duplicate the bug. I only realized it was the "stereoscopy" setting when I stopped a test render by accident, and decided to save it. anyways to see how it looked. The View Transform profile and look carried over, unlike the prior stereoscopic image. Here is the scene rendered in Blender: ![image.png](https://archive.blender.org/developer/F14160155/image.png) Here is the saved image, but with **stereoscopy** turned **off**: ![image.png](https://archive.blender.org/developer/F14160363/image.png) And here is how the saved image looks with **stereoscopy** turned **on**: ![image.png](https://archive.blender.org/developer/F14160369/image.png) As you can see, the exposure is much higher, and there is less saturation. Possibly less contrast as well, but that could just be a byproduct of the exposure being higher. **Exact steps for others to reproduce the error** - Open attached .blend file (camera all set up, 'Stereoscopy' and all settings ready to go) - render the image - save resulting image - Compare the image to your render viewport [Room Example 1.blend](https://archive.blender.org/developer/F14160288/Room_Example_1.blend)

Dark Zalivstok commented

2023-01-14 20:57:55 +01:00

Added subscriber: @Dark_Zalivstok

Germano Cavalcante commented

2023-01-16 19:45:51 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2023-01-16 19:45:51 +01:00

I'm not sure if I was able to replicate the problem.
It all looks pretty much the same to me:

I'm not sure if I was able to replicate the problem. It all looks pretty much the same to me: ![image.png](https://archive.blender.org/developer/F14153897/image.png)

Dark Zalivstok commented

2023-01-16 20:38:24 +01:00

Thanks for looking into it. I don't think it will matter, but just in case I should clarify for camera settings: as well as being set up for steroscopic renders, mine is also be side by side. I'll include screenshots of my camera setting as I have it.

You'll also need to compare the viewport/render image to the actual saved one your hard drive. The problem arises once it's actually saved to your hard drive, as it's fine before saving it. I think something in saving the image changes it. As simple as clicking on the saved image in your folder and comparing the folder preview to the render or rendered viewport.

Thanks for looking into it. I don't think it will matter, but just in case I should clarify for camera settings: as well as being set up for steroscopic renders, mine is also be side by side. I'll include screenshots of my camera setting as I have it. You'll also need to compare the viewport/render image to the actual saved one your hard drive. The problem arises once it's actually saved to your hard drive, as it's fine before saving it. I think something in saving the image changes it. As simple as clicking on the saved image in your folder and comparing the folder preview to the render or rendered viewport. ![image.png](https://archive.blender.org/developer/F14153954/image.png) ![image.png](https://archive.blender.org/developer/F14153958/image.png)

Germano Cavalcante commented

2023-01-17 17:45:03 +01:00

Changed status from 'Needs Triage' to: 'Needs User Info'

Germano Cavalcante commented

2023-01-17 17:45:03 +01:00

I noticed that you are using Cycles.
But even putting the same settings, I can not replicate the problem.

We need reliable steps to repro it.
Normally .blend files can be simplified by removing most objects and disabling settings, until the problem reveals itself more clearly.
If there are many steps to reproduce the problem, please attach a .blend file saved right before the bug occurs, so only a few steps are needed to trigger the bug.

I noticed that you are using Cycles. But even putting the same settings, I can not replicate the problem. ![image.png](https://archive.blender.org/developer/F14159643/image.png) We need reliable steps to repro it. Normally .blend files can be simplified by removing most objects and disabling settings, until the problem reveals itself more clearly. If there are many steps to reproduce the problem, please attach a .blend file saved right before the bug occurs, so only a few steps are needed to trigger the bug.

Dark Zalivstok commented

2023-01-17 17:52:00 +01:00

It looks like you're not comparing the rendered product or viewport to the SAVED image on your computer. You're comparing the rendered product to the viewport. The saved render is what looks different. I can't stress this enough, the image is not saving like it should. Once the render is saved, it loses it's color management profile.

When I get a chance I'll reproduce this myself with screenshots. But again, the stereoscopic render changes when it is SAVED.

It looks like you're not comparing the rendered product or viewport to the SAVED image on your computer. You're comparing the rendered product to the viewport. The saved render is what looks different. I can't stress this enough, the image is not saving like it should. Once the render is saved, it loses it's color management profile. When I get a chance I'll reproduce this myself with screenshots. But again, the stereoscopic render changes when it is SAVED.

Germano Cavalcante commented

2023-01-17 18:28:29 +01:00

In #103888#1475580, @Dark_Zalivstok wrote:
It looks like you're not comparing the rendered product or viewport to the SAVED image on your computer.

See the screenshot, the two images above (Left and Right) do not have the Blender interface. They are image files loaded with the Microsoft Photos app.

> In #103888#1475580, @Dark_Zalivstok wrote: > It looks like you're not comparing the rendered product or viewport to the SAVED image on your computer. See the screenshot, the two images above (Left and Right) do not have the Blender interface. They are image files loaded with the Microsoft Photos app.

Dark Zalivstok commented

2023-01-17 18:55:50 +01:00

I apologize. That is my fault. I assumed the examples were Blender because the colors were so similar, and my colors on my PC are so different. That's my fault.

I'll get a .blend uploaded with the settings I used and share that here. Hopefully that will help narrow it down.

I apologize. That is my fault. I assumed the examples were Blender because the colors were so similar, and my colors on my PC are so different. That's my fault. I'll get a .blend uploaded with the settings I used and share that here. Hopefully that will help narrow it down.

Dark Zalivstok commented

2023-01-17 19:31:19 +01:00

Here is the scene rendered in Blender:

Here is the same scene, but with viewport shading:

Here is the saved image, but with stereoscopy turned off:

And here is how the saved image looks with stereoscopy enabled:

Room Example 1.blend

As you can see, the exposure is much higher, and there is less saturation. Possibly less contrast as well, but that could just be a byproduct of the exposure being higher.

Here is the .blend with the camera all set up, same room, lit up and all settings ready to go. All you'll need to do is open the .blend, render the image, and save it. If you don't want to use the room I'll understand. I just chose to use something with a little color and contrast already in it to give a better example of changes in saving. If that's the case, feel free to just delete the room models and place something else in there.

Here is the scene rendered in Blender: ![image.png](https://archive.blender.org/developer/F14160155/image.png) Here is the same scene, but with viewport shading: ![image.png](https://archive.blender.org/developer/F14160158/image.png) Here is the saved image, but with stereoscopy turned off: ![image.png](https://archive.blender.org/developer/F14160363/image.png) And here is how the saved image looks with stereoscopy enabled: ![image.png](https://archive.blender.org/developer/F14160369/image.png) [Room Example 1.blend](https://archive.blender.org/developer/F14160288/Room_Example_1.blend) As you can see, the exposure is much higher, and there is less saturation. Possibly less contrast as well, but that could just be a byproduct of the exposure being higher. Here is the .blend with the camera all set up, same room, lit up and all settings ready to go. All you'll need to do is open the .blend, render the image, and save it. If you don't want to use the room I'll understand. I just chose to use something with a little color and contrast already in it to give a better example of changes in saving. If that's the case, feel free to just delete the room models and place something else in there.

Germano Cavalcante changed title from ~~Stereoscopic Renders in 3.3.1 and 3.4.1 Remove Contrast and Raise Exposure Upon Saving File~~ to Regression: Stereoscopic renders in 3.3.1 remove contrast and raise exposure upon saving file

2023-01-19 16:23:13 +01:00

Germano Cavalcante commented

2023-01-19 16:23:13 +01:00

Changed status from 'Needs User Info' to: 'Confirmed'

Lukas Stockner commented

2023-01-23 21:52:25 +01:00

Added subscriber: @LukasStockner

Lukas Stockner self-assigned this 2023-01-23 21:52:25 +01:00

Lukas Stockner commented

2023-01-23 21:52:25 +01:00

Caused by 42937493d8.

Caused by 42937493d8.

blender-admin commented

2023-01-23 22:10:40 +01:00

This issue was referenced by f72969f377

This issue was referenced by f72969f377a05741ded8f8bfa325d5980a58d1a6

Lukas Stockner commented

2023-01-23 22:13:12 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Lukas Stockner closed this issue

2023-01-23 22:13:12 +01:00

Lukas Stockner commented

2023-01-23 22:16:24 +01:00

Since this report mentions stereo panorama rendering in 3.3: Note that there was a bug in 3.0 - 3.4 that broke Cycles stereoscopic panoramas (#94752). I didn't add that one to be backported (yet) since it's a significant change to the output, but it means that you'll probably want to use a nightly build until 3.5 is released.

Christoph Lendenfeld referenced this issue

2023-02-10 11:56:21 +01:00

Blender LTS: Maintenance Task 3.3 #100749

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Regression: Stereoscopic renders in 3.3.1 remove contrast and raise exposure upon saving file #103888