Hi Kirgman.
Reporting an error when using Bloom in spherical rendering. If an object that produces bloom and glow is located in the render's cutoff area (the edges), the bloom is only rendered on the side that is the center of the object producing the bloom. On the other side, it doesn't.
I'm sending you a sample image (with a slight bloom, but you can see what I'm reporting) because in this specific case, it not only reproduces the error mentioned, but also produces artifacts in the cutoff area. Something that doesn't happen when bloom isn't used.
Regards.
I'm attaching a link to image 360 due to forum upload size limitations. The image is 6.82 MB.
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Bugs in bloom effect in spherical rendering.
Bugs in bloom effect in spherical rendering.
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Administrator Posts:
Aug 28, 2025 15:44
Hi Jiv,
Thanks for sharing a very nice image, I really like it! I think it took a lot of effort to work with it. Do you mean the bloom artifact such as this? So here we have the light bulb and bloom effect to the top right side, but not on the others. Is this a thing you are concerned? 
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User Posts:
Aug 28, 2025 21:59
Hello again, Kirgman.
Thanks for your comment. To clearly see the error, you have to view it in the 360° viewer. You can see when one edge of the image contrasts with the other. Otherwise, it's very difficult to see. You can see how the blob is created in the center of the object, but for some reason it doesn't transfer to the other edge of the image. The smaller image (the one with the spotlights) makes the problem clearer. Here are some examples:
Edited:
- Aug 28, 2025 22:06
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Administrator Posts:
Aug 29, 2025 05:02
Oh, I see, it's a very good catch! So when we stitch left and right side together in 360 viewer then we can observe this thing. It happens because the left and right side don't collaborate when we compute the bloom. Need to look there in more detail.
Thanks a lot for this bugrep!
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User Posts:
Aug 29, 2025 07:38
Thanks to you.
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User Posts:
Sep 11, 2025 22:09
Regarding the "Error" in bloom generation in 360 images, it must be intrinsic to it.
I've noticed it also happens in Blender Cycles and After Effects. I understand the solution to the problem would be complex. It would be something like "taking into account" the union of both ends of the image before applying the bloom effect, so it can be applied to the end of the image that doesn't have the brightness information. If the generation point were at both ends (unless it were perfectly symmetrical), it would always fail, and if there were multiple bloom emission points, the errors would occur at both ends, like a cut line for the effect. Thank you for your previous response. |
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Administrator Posts:
Sep 13, 2025 14:06
Hi Jiv, thank you again for posting this bugrep. More or less I know how to either fix or reduce this effect. Let's see the other updates
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