volumetric lighting origin showing through objects in 2.81 #71271

New Issue

digital0785 · 2019-11-01T17:01:05+01:00

digital0785 commented

2019-11-01 17:01:05 +01:00

System Information
Operating system: Windows-10-10.0.18362 64 Bits
Graphics card: Quadro P4000/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.70

Blender Version
Broken: version: 2.81 (sub 14), branch: master, commit date: 2019-10-07 20:16, hash: a856c5eccf
Worked: 2.8 doesn't have the issue

Short description of error
area light behind panel you can see the point of the volumetric generation option_volumtric_issue1.blend

Exact steps for others to reproduce the error
open attached blend file i've attached an image and circled the issue
[Based on the default startup or an attached .blend file (as simple as possible)]

in addition is there anyway to have area lights not just have volumetrics at the center point? if it was generated from the whole panel of the area light that would be amazingly helpful in making it look more realistic

thank you!

**System Information** Operating system: Windows-10-10.0.18362 64 Bits Graphics card: Quadro P4000/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 431.70 **Blender Version** Broken: version: 2.81 (sub 14), branch: master, commit date: 2019-10-07 20:16, hash: `a856c5eccf` Worked: 2.8 doesn't have the issue **Short description of error** area light behind panel you can see the point of the volumetric generation [option_volumtric_issue1.blend](https://archive.blender.org/developer/F7895928/option_volumtric_issue1.blend) **Exact steps for others to reproduce the error** open attached blend file i've attached an image and circled the issue ![volumetric issue.JPG](https://archive.blender.org/developer/F7891468/volumetric_issue.JPG) [Based on the default startup or an attached .blend file (as simple as possible)] in addition is there anyway to have area lights not just have volumetrics at the center point? if it was generated from the whole panel of the area light that would be amazingly helpful in making it look more realistic thank you!

digital0785 commented

2019-11-01 17:01:05 +01:00

Added subscriber: @digital0785

Evan Wilson commented

2019-11-02 01:51:11 +01:00

Added subscriber: @EAW

Evan Wilson commented

2019-11-02 01:51:11 +01:00

18,800 objects is hardly simplified.

Find steps to redo the bug consistently, and include a small and simple .blend file to demonstrate the bug.

Also your daily build is 3 weeks old.

Always test with the latest official release from blender.org and daily build from builder.blender.org.

However, I can confirm that I am able to reproduce with 59b16e28d9

The 3 lights that should be occluded from view are visible once the volumetric view distance is set to 220' or further.

Here is the file with only the necessary objects.
option_volumtric_issue1.blend

System Information
Operating system: Windows-7-6.1.7601-SP1 64 Bits
Graphics card: GeForce GTX 470/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 391.35

18,800 objects is hardly simplified. * [Find steps to redo the bug consistently, and include a small and simple .blend file to demonstrate the bug.](https://developer.blender.org/maniphest/task/edit/form/1/) Also your daily build is 3 weeks old. * [Always test with the latest official release from blender.org and daily build from builder.blender.org.](https://developer.blender.org/maniphest/task/edit/form/1/) However, I can confirm that I am able to reproduce with 59b16e28d9 The 3 lights that should be occluded from view are visible once the volumetric view distance is set to 220' or further. ![render_of_vol_bug3.jpg](https://archive.blender.org/developer/F7896047/render_of_vol_bug3.jpg) ![render_of_vol_bug1.jpg](https://archive.blender.org/developer/F7896033/render_of_vol_bug1.jpg) ![render_of_vol_bug2.jpg](https://archive.blender.org/developer/F7896034/render_of_vol_bug2.jpg) Here is the file with only the necessary objects. [option_volumtric_issue1.blend](https://archive.blender.org/developer/F7895928/option_volumtric_issue1.blend) --- **System Information** Operating system: Windows-7-6.1.7601-SP1 64 Bits Graphics card: GeForce GTX 470/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 391.35

digital0785 commented

2019-11-02 03:39:39 +01:00

I tested with today's 2.81 it was still broken, I already had the thread created and file uploaded but didn't hit submit.

My apologies on the large file i left the arena in there and such as i mostly deal with larger areas and didn't know if that would cause issues and i did see it in other areas when moving around just that was the easiest one to find.

Also you guys are awesome with the speedy feedback :) is the area lights generating from a point something or just a current short coming off Eevee?

I tested with today's 2.81 it was still broken, I already had the thread created and file uploaded but didn't hit submit. My apologies on the large file i left the arena in there and such as i mostly deal with larger areas and didn't know if that would cause issues and i did see it in other areas when moving around just that was the easiest one to find. Also you guys are awesome with the speedy feedback :) is the area lights generating from a point something or just a current short coming off Eevee?

mike commented

2019-11-02 05:14:05 +01:00

Added subscriber: @kosblend

Jacques Lucke commented

2020-01-15 16:58:35 +01:00

Added subscriber: @JacquesLucke

Jacques Lucke commented

2020-01-15 16:58:35 +01:00

Changed status from 'Needs Triage' to: 'Archived'

Jacques Lucke closed this issue

2020-01-15 16:58:35 +01:00

Jacques Lucke self-assigned this 2020-01-15 16:58:35 +01:00

Jacques Lucke commented

2020-01-15 16:58:35 +01:00

Increasing the Samples in the Volumetrics panel seems to solve the problem, so I don't think this is a bug.

Increasing the `Samples` in the `Volumetrics` panel seems to solve the problem, so I don't think this is a bug. ![image.png](https://archive.blender.org/developer/F8279846/image.png)

digital0785 commented

2022-01-27 05:06:21 +01:00

flare3.blend

still same bug present 2 years later, samples are at 256 and cannot go higher yet you can still see it through the object.. have tested on 2.93, 3, and 3 with ssgi build. all have the issue present and it's not just if the light is inside the object I've had it happen in other projects not setup like this I just deleted the light as I was in the middle of a time crunch

apparently the response I had previously typed wasn't posted. But it seems like a bug as I wouldn't imagine thats its intended display when it was working properly in 2.8

[flare3.blend](https://archive.blender.org/developer/F12826639/flare3.blend) still same bug present 2 years later, samples are at 256 and cannot go higher yet you can still see it through the object.. have tested on 2.93, 3, and 3 with ssgi build. all have the issue present and it's not just if the light is inside the object I've had it happen in other projects not setup like this I just deleted the light as I was in the middle of a time crunch apparently the response I had previously typed wasn't posted. But it seems like a bug as I wouldn't imagine thats its intended display when it was working properly in 2.8

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volumetric lighting origin showing through objects in 2.81 #71271