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I have an interesting problem, I work with blender on my Macbook pro M2 pro and have created a animation, for the rendering I am using 3 pc to help with cutting down the rendering time. Problem is the pc and mac renders differently... I'm afraid I cannot share the file since it is a working project and protected etc

but this is a render from a pc PC render

and this is the result on my mac using GPU and metal

Mac

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  • $\begingroup$ and this is what I get on my mac (running gpu with metal) $\endgroup$
    – Pacho
    Commented Oct 15, 2023 at 17:14
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    $\begingroup$ You may want to highlight the difference with annotations. I don't see any... $\endgroup$
    – james_t
    Commented Oct 15, 2023 at 17:25
  • $\begingroup$ There is a big black vertical stripe right across the middle of the image >.< @Pacho check your geometry, looks like you have overlapping faces or their normals are not pointing outside. $\endgroup$
    – taiyo
    Commented Oct 15, 2023 at 22:02
  • $\begingroup$ @james_t You don't see any differences? There is no black stripe visible in the bottom picture which is not in the top picture? Apart from the area in the top right being darker. Pacho: is it exactly the same file? To me it looks as if there is something visible in the bottom image that is hidden in the top one... $\endgroup$
    – Gordon Brinkmann
    Commented Oct 16, 2023 at 8:19
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    $\begingroup$ @james_t He found the answer to his problem and posted it 10 hours ago... $\endgroup$
    – Gordon Brinkmann
    Commented Oct 16, 2023 at 20:06

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thanks for your answers, I found today that one of the pcs were also producing the same result as the mac, so I started checking differences, they all use the same files, but...apparantly it is in which type of GPU renderer I choose, so I switched to CUDA on my pcs and they produced the same image as the mac.

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Something that immediately stands out to me is the harshness of the brightest parts of the image. I believe if you check the Color Management settings in the Render panel and set the view transform to Filmic, the output should look like the bottom one.

Location of the Color Management settings

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    $\begingroup$ If you place the images on top of each other, you'll see no difference in the images except for the broken geometry with the black stripe. Also OP says he is cutting the same scene down to different PCs, so one can assume the Blender setup is identical. $\endgroup$
    – taiyo
    Commented Oct 15, 2023 at 22:12
  • $\begingroup$ I partly agree with @taiyo - although there are differences between the images and the brightness in certain areas is different, the Color Management is definitely not the reason for this harsh black stripe. $\endgroup$
    – Gordon Brinkmann
    Commented Oct 16, 2023 at 8:17

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