EEVEE Transparent mask + baked lighting optimisation issue #87851

New Issue

Dennis Wormgoor · 2021-04-27T02:51:54+02:00

Dennis Wormgoor commented

2021-04-27 02:51:54 +02:00

System Information
Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce RTX 3090/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 465.89

Blender Version
Broken: version: 2.93.0, branch: master, commit date: 2021-02-13 14:43, hash: 7f7e683099
Worked: Previous commit

Short description of error
I have a house with some trees around it that use a masked transparancy for the leaves.
When i bake the lighting for eevee (irradiance probes + several reflection cubes) the impact of these trees is massive. in 2.92 i had about 60fps, and in 2.93 its down to 10fps (when hiding the vegetation collection, it basicly runs like the 2.92 version with vegetation)
When i have a sunlight shining trough these masked leaves, it runs fine. but when the scene has baked eevee lighting, the performance goes down alot.

Exact steps for others to reproduce the error
Opening my attached scene 2.92, bake the indirect lighting as it is set up, and view the rendered viewport. Now repeat these steps in 2.93 (everything in this file is deleted exept the relevant items for this bug)

Blender bug.blend

**System Information** Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce RTX 3090/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 465.89 **Blender Version** Broken: version: 2.93.0, branch: master, commit date: 2021-02-13 14:43, hash: `7f7e683099` Worked: Previous commit **Short description of error** I have a house with some trees around it that use a masked transparancy for the leaves. When i bake the lighting for eevee (irradiance probes + several reflection cubes) the impact of these trees is massive. in 2.92 i had about 60fps, and in 2.93 its down to 10fps (when hiding the vegetation collection, it basicly runs like the 2.92 version with vegetation) When i have a sunlight shining trough these masked leaves, it runs fine. but when the scene has baked eevee lighting, the performance goes down alot. **Exact steps for others to reproduce the error** Opening my attached scene 2.92, bake the indirect lighting as it is set up, and view the rendered viewport. Now repeat these steps in 2.93 (everything in this file is deleted exept the relevant items for this bug) [Blender bug.blend](https://archive.blender.org/developer/F10040470/Blender_bug.blend)

Dennis Wormgoor commented

2021-04-27 02:51:54 +02:00

Added subscriber: @Denniswoo1993

Germano Cavalcante commented

2021-04-29 04:49:24 +02:00

Added subscriber: @mano-wii

Germano Cavalcante commented

2021-04-29 04:49:24 +02:00

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

Germano Cavalcante commented

2021-04-29 04:49:24 +02:00

I can't see any visual differences.
But I notice a decrease in performance and a consistent crash.
I will do the bisect to find which commit introduced this.

Operating system: Windows-10-10.0.19041-SP0 64 Bits
Graphics card: NVIDIA GeForce MX250/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 466.11
Blender Version: 3.0.0 Alpha, branch: master, commit date: 2021-04-28 22:27, hash: 14f59a0349

I can't see any visual differences. But I notice a decrease in performance and a consistent crash. I will do the bisect to find which commit introduced this. --- Operating system: Windows-10-10.0.19041-SP0 64 Bits Graphics card: NVIDIA GeForce MX250/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 466.11 Blender Version: 3.0.0 Alpha, branch: master, commit date: 2021-04-28 22:27, hash: `14f59a0349`

Germano Cavalcante commented

2021-04-29 19:29:20 +02:00

Regression introduced in 7f7e683099

Regression introduced in 7f7e683099

I did must have done it commented

2021-04-29 23:11:51 +02:00

Added subscriber: @leonardos