EEVEE-Next: Orthographic viewport performance drop with transparent object at close range #121629

New Issue

Andrea-Lanaro · 2024-05-09T18:07:38+02:00

Andrea-Lanaro commented

2024-05-09 18:07:38 +02:00

System Information
Operating system: Windows-10-10.0.17763-SP0
Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 | 4.6.0 NVIDIA 551.86

Blender Version
Broken: 4.2.0 main 2024-02-07
Worked:

Short description of error
EEVEE-Next: Orthographic viewport performance drop with transparent object at close range

Things required to trigger performance hit

Material Preview or Rendered mode.
Orthographic view.
Enable scene shadow eevee.use_shadow
Have transparent object using Blended render method.
Viewing object at close range (view clip dependent)

Changing view clip to be smaller (0.001-100) makes this problem go away.

Exact steps for others to reproduce the error
From default startup

Select default cube.
Scale down to 0.1 (20cm^3)
Go into orthographic view.
Lower material alpha.
Set render method to Blended.
View select on cube (`,s)
this should put the view real close to the cube.
Move view around while in ortho (shift,mouse-middle)
Compare performance in perspective.

From file

Move view around while in ortho (shift,mouse-middle)
Compare performance in perspective.

**System Information** Operating system: Windows-10-10.0.17763-SP0 Graphics card: NVIDIA GeForce RTX 3060/PCIe/SSE2 | 4.6.0 NVIDIA 551.86 **Blender Version** Broken: 4.2.0 main 2024-02-07 Worked: **Short description of error** EEVEE-Next: Orthographic viewport performance drop with transparent object at close range Things required to trigger performance hit - *Material Preview* or *Rendered* mode. - Orthographic view. - Enable scene shadow `eevee.use_shadow` - Have transparent object using *Blended* render method. - Viewing object at close range (view clip dependent) Changing view clip to be smaller (0.001-100) makes this problem go away. <video src="/attachments/7b8f5e3d-c7ba-4a93-8dc1-1533b867c9ef" title="orthoalpha.mp4" controls></video> **Exact steps for others to reproduce the error** From default startup 1. Select default cube. 2. Scale down to 0.1 (20cm^3) 3. Go into orthographic view. 4. Lower material alpha. 5. Set render method to Blended. 6. *View select* on cube (\`,s) this should put the view real close to the cube. 7. Move view around while in ortho (shift,mouse-middle) 8. Compare performance in perspective. From file 1. Move view around while in ortho (shift,mouse-middle) 2. Compare performance in perspective.

orthoalpha.blend

946 KiB

orthoalpha.mp4

2.4 MiB

Andrea-Lanaro added the

labels 2024-05-09 18:07:39 +02:00

Richard Antalik commented

2024-05-09 18:50:54 +02:00

I think the build date in report description is incorrect.

I can reproduce this delayed-like motion, but it's rather when zoomed out. when zoomed in it is bit choppy. I am using AMD RX550 GPU now, since my 3060 broke.

I guess I can confirm though.

I think the build date in report description is incorrect. I can reproduce this delayed-like motion, but it's rather when zoomed out. when zoomed in it is bit choppy. I am using AMD RX550 GPU now, since my 3060 broke. I guess I can confirm though.

Richard Antalik added

and removed

labels 2024-05-09 18:52:06 +02:00

Andrea-Lanaro commented

2024-05-09 18:59:34 +02:00

I think the build date in report description is incorrect.

Sample file is saved with latest daily but date in description is for the oldest alpha on archive that I tested with. Did not put commit hash since I can't find a working version.

> I think the build date in report description is incorrect. Sample file is saved with latest daily but date in description is for the oldest alpha on archive that I tested with. Did not put commit hash since I can't find a working version.

Iliya Katushenock added the

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EEVEE-Next: Orthographic viewport performance drop with transparent object at close range #121629