still seeing blocky volumes in cycles #86770

New Issue

Andrew Walsh · 2021-03-20T19:47:25+01:00

Andrew Walsh commented

2021-03-20 19:47:25 +01:00

{F9901396}System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.51

Blender Version
Broken: version: 2.91.0, branch: master, commit date: 2020-11-25 08:34, hash: 0f45cab862
Worked: (newest version of Blender that worked as expected)

Short description of error
vdbs and volumes are rendering blocky in cycles

Exact steps for others to reproduce the error
I know this is an old issue, I was told two versions ago that this should be fixed in the following version but still there in 2.92 (see image).

Unless there are some settings I don't know about. The attached image has two objects that were converted to volume and you can see sharp lines in the volume 'box'. Makes it pretty much unusable for professional work.

{[F9901396](https://archive.blender.org/developer/F9901396/Capture.JPG)}**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: GeForce GTX 1070/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.51 **Blender Version** Broken: version: 2.91.0, branch: master, commit date: 2020-11-25 08:34, hash: `0f45cab862` Worked: (newest version of Blender that worked as expected) **Short description of error** vdbs and volumes are rendering blocky in cycles **Exact steps for others to reproduce the error** I know this is an old issue, I was told two versions ago that this should be fixed in the following version but still there in 2.92 (see image). Unless there are some settings I don't know about. The attached image has two objects that were converted to volume and you can see sharp lines in the volume 'box'. Makes it pretty much unusable for professional work.

Andrew Walsh commented

2021-03-20 19:47:25 +01:00

Added subscriber: @andywalshart

Andrew Walsh commented

2021-03-21 00:02:56 +01:00

cloud-test.avi
Here's a quick few seconds of that cloud animated. Here's it's rotating slightly over about 70 frames. There's two clouds actually, one top left and one top right. Notice the squares.

Another quick note. The problem is greatly exaggerated at higher render sizes.

[cloud-test.avi](https://archive.blender.org/developer/F9901581/cloud-test.avi) Here's a quick few seconds of that cloud animated. Here's it's rotating slightly over about 70 frames. There's two clouds actually, one top left and one top right. Notice the squares. Another quick note. The problem is greatly exaggerated at higher render sizes.

Germano Cavalcante commented

2021-03-24 16:44:33 +01:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2021-03-24 16:44:33 +01:00

This looks like a duplicate of #81590 (High Resolution VDB renders blocky artifacts in Cycles)
It may also be related to #72811 (Smoke sim glitch in Cycles)

@andywalshart can you confirm?

This looks like a duplicate of #81590 (High Resolution VDB renders blocky artifacts in Cycles) It may also be related to #72811 (Smoke sim glitch in Cycles) @andywalshart can you confirm?

Andrew Walsh commented

2021-03-25 00:28:12 +01:00

It does look similar to aspects of both of those. Such a shame as I use volumetrics in just about every scene. There's always high levels of noise alongside the blocky issue. Has there been any progress with the issue?

Germano Cavalcante commented

2021-03-26 20:36:12 +01:00

The developers are aware and the bug is already on the stack to be investigated.
Unfortunately, some problems take longer to be fixed.

I will merge the reports.

The developers are aware and the bug is already on the stack to be investigated. Unfortunately, some problems take longer to be fixed. I will merge the reports.

Germano Cavalcante commented

2021-03-26 20:36:27 +01:00

Closed as duplicate of #81590

Germano Cavalcante closed this issue

2021-03-26 20:36:27 +01:00

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still seeing blocky volumes in cycles #86770