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Cycles faster rendering when image is moved #114143

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opened 2023-10-25 11:11:19 +02:00 by Benyamin-Bayati · 18 comments
Benyamin-Bayati commented 2023-10-25 11:11:19 +02:00
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System Information
Operating system: Windows-10-10.0.19045-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 4090/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 537.42

Blender Version
Broken: version: 4.0.0 Beta, branch: blender-v4.0-release, commit date: 2023-10-06 00:22, hash: 887570065fa4
Worked: (newest version of Blender that worked as expected)

Short description of error
[Please fill out a short description of the error here]

Exact steps for others to reproduce the error
[Please describe the exact steps needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]

**System Information** Operating system: Windows-10-10.0.19045-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 4090/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 537.42 **Blender Version** Broken: version: 4.0.0 Beta, branch: blender-v4.0-release, commit date: 2023-10-06 00:22, hash: `887570065fa4` Worked: (newest version of Blender that worked as expected) **Short description of error** [Please fill out a short description of the error here] **Exact steps for others to reproduce the error** [Please describe the exact steps needed to reproduce the issue] [Based on the default startup or an attached .blend file (as simple as possible)]
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Benyamin-Bayati commented 2023-10-25 11:17:31 +02:00
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Hello , this is weird when I am rendering with Cycles and in render window click and drag Cycles render a lot faster !
Look at the samples in the video

Hello , this is weird when I am rendering with Cycles and in render window click and drag Cycles render a lot faster ! Look at the samples in the video
2023-10-22 00-09-42.mp4
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Philipp Oeser commented 2023-10-25 11:24:47 +02:00
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I assume this is just because the UI is redrawn more often when panning the viewport.
(so samples change quicker, however, the gaps between redraws is also smaller)

Have you checked final rendertimes are actually faster?

I assume this is just because the UI is redrawn more often when panning the viewport. (so samples change quicker, however, the gaps between redraws is also smaller) Have you checked final rendertimes are actually faster?
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Benyamin-Bayati commented 2023-10-25 12:00:10 +02:00
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yes it rendered faster this frame of animation

yes it rendered faster this frame of animation
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Richard Antalik commented 2023-10-25 15:44:29 +02:00
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Can you post render time when not touching the image editor and when moving the image constantly?
Also please upload .blend file. I can't reproduce here.

Can you post render time when not touching the image editor and when moving the image constantly? Also please upload .blend file. I can't reproduce here.
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Benyamin-Bayati commented 2023-10-26 10:37:32 +02:00
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Sure

Sure
Benyamin-Bayati commented 2023-10-26 10:51:36 +02:00
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mahsa_Shiny_V2.zip
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Benyamin-Bayati commented 2023-10-26 10:58:21 +02:00
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The render time was almost the same
Render time with moving screen : 1.35 min
Render time without moving screen : 1.17 min

The render time was almost the same Render time with moving screen : 1.35 min Render time without moving screen : 1.17 min
Richard Antalik commented 2023-10-26 16:13:16 +02:00
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I wasn't able to reproduce this. @PratikPB2123 can you repro on windows?

I wasn't able to reproduce this. @PratikPB2123 can you repro on windows?
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Richard Antalik changed title from Bug to Cycles faster rendering when image is moved 2023-10-26 17:04:07 +02:00
Pratik Borhade commented 2023-10-26 21:47:07 +02:00
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Broken: version: 4.0.0 Beta, branch: blender-v4.0-release, commit date: 2023-10-06 00:22

Unable to confirm either. Instead, render time increased by a minute. @Benyamin-Bayati hi, Could you check again in recent development builds?: https://builder.blender.org/download/daily/

stable Navigating
image image 
**System Information**
Operating system: Windows-10-10.0.22000-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 532.03
> Broken: version: 4.0.0 Beta, branch: blender-v4.0-release, commit date: 2023-10-06 00:22 Unable to confirm either. Instead, render time increased by a minute. @Benyamin-Bayati hi, Could you check again in recent development builds?: https://builder.blender.org/download/daily/ | stable | Navigating | | -- | -- | | ![image](/attachments/3bc26d49-1274-4874-87b4-a5b7a364410d) | ![image](/attachments/f8c877fc-2784-4a21-8dff-c6e76e9311a5) | ``` **System Information** Operating system: Windows-10-10.0.22000-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3050 Laptop GPU/PCIe/SSE2 NVIDIA Corporation 4.6.0 NVIDIA 532.03 ```
image.png
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Philipp Oeser commented 2023-10-30 08:47:03 +01:00
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The render time was almost the same
Render time with moving screen : 1.35 min
Render time without moving screen : 1.17 min

Doesnt this imply it got slower when moving the screen?

> The render time was almost the same > Render time with moving screen : 1.35 min > Render time without moving screen : 1.17 min > Doesnt this imply it got **slower** when moving the screen?
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Benyamin-Bayati commented 2023-10-30 08:53:04 +01:00
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Sorry I don't exactly know but it acts weird every time

Sorry I don't exactly know but it acts weird every time
Philipp Oeser commented 2023-10-30 09:38:23 +01:00
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Sorry I don't exactly know but it acts weird every time

Define "weird" :)

> Sorry I don't exactly know but it acts weird every time Define "weird" :)
Benyamin-Bayati commented 2023-10-30 09:42:55 +01:00
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Sometimes is faster and sometimes is slower !

Sometimes is faster and sometimes is slower !
Philipp Oeser commented 2023-10-30 09:50:30 +01:00
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It would help then if you could show us an example (video) where the final / complete rendertime is actually faster when panning the view (compared to no panning at all)

It would help then if you could show us an example (video) where the `final` / `complete` rendertime is actually faster when panning the view (compared to no panning at all)
Benyamin-Bayati commented 2023-10-30 09:57:49 +01:00
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Alright

Alright
Benyamin-Bayati commented 2023-10-30 10:20:45 +01:00
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I guess I was wrong about it renders faster and now I'm sure that panning the view just makes it slower
Sorry guys wasting your time

I guess I was wrong about it renders faster and now I'm sure that panning the view just makes it slower Sorry guys wasting your time
Philipp Oeser commented 2023-10-30 10:30:46 +01:00
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I guess I was wrong about it renders faster and now I'm sure that panning the view just makes it slower
Sorry guys wasting your time

np, will close then.

> I guess I was wrong about it renders faster and now I'm sure that panning the view just makes it slower > Sorry guys wasting your time > np, will close then.
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Benyamin-Bayati commented 2023-10-30 10:34:36 +01:00
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https://drive.google.com/file/d/1z6ImzbH1_BIhn1qgcXnXtU_WHimjKjKw/view?usp=sharing

https://drive.google.com/file/d/1z6ImzbH1_BIhn1qgcXnXtU_WHimjKjKw/view?usp=sharing
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