Eevee: viewport issues before toggling AO support #52593

New Issue

Dalai Felinto · 2017-08-30T18:05:53+02:00

Dalai Felinto commented

2017-08-30 18:05:53 +02:00

System Information
Windows + AMD Radeon WX7100
Mac Book Pro + NVidia

Blender Version
Broken: 659be38760
Worked: 659be3876078^

Short description of error
Shaders are wrong (black) before running with AO at least once.

Exact steps for others to reproduce the error

Open Factory startup
Cube is black.
Turn on Ambient Occlusion
Cube is fine.
Turn off Ambient Occlusion
Cube is still fine.

**System Information** Windows + AMD Radeon WX7100 Mac Book Pro + NVidia **Blender Version** Broken: 659be3876078 Worked: 659be3876078^ **Short description of error** Shaders are wrong (black) before running with AO at least once. **Exact steps for others to reproduce the error** * Open Factory startup *Cube is black.* * Turn on Ambient Occlusion *Cube is fine.* * Turn off Ambient Occlusion *Cube is still fine.*

Dalai Felinto commented

2017-08-30 18:05:53 +02:00

Changed status to: 'Open'

Dalai Felinto commented

2017-08-30 18:05:53 +02:00

Added subscriber: @dfelinto

Dalai Felinto commented

2017-08-30 18:06:28 +02:00

Added subscriber: @brecht

Clément Foucault was assigned by Dalai Felinto

2017-08-30 18:06:28 +02:00

Dalai Felinto commented

2017-08-30 18:14:05 +02:00

Comments by @brecht:

Enabling Ambient Occlusion makes it work again here, even if you then disable it. I think it's some problem with the aoSettings variable getting the wrong value initially, though it's not clear to me how.

Comments by @brecht: > Enabling Ambient Occlusion makes it work again here, even if you then disable it. I think it's some problem with the aoSettings variable getting the wrong value initially, though it's not clear to me how.

Dalai Felinto commented

2017-08-30 18:23:51 +02:00

Added subscriber: @AndyCodling

Dalai Felinto commented

2017-08-31 15:26:04 +02:00

@matthe: The thing is, the issue was caused by the GTAO commit. Enabling AO was never suggested as a workaround, but instead of a way to reproduce the bug in a simple and reliable way.

Jeroen Bakker commented

2017-09-08 11:57:34 +02:00

Added subscriber: @Jeroen-Bakker

Jeroen Bakker commented

2017-09-08 11:57:34 +02:00

Using git commit 5b026486e4 with amd pro duo card the default cube in eevee renders with jitters. Other cards with same build (AMD 480, GTX580) works fine (same machine). After toggling AO all works fine on pro duo card. I only noticed it a week ago after installing the pro duo card.

The system info shows my custom branch, but the blender2.8 branch also has this. If you need more info/test, please let me know.

system-info-pro-duo.txt

console.txt

Using git commit 5b026486e4f2a36bf4c988593ebecb135a2ccf84 with amd pro duo card the default cube in eevee renders with jitters. Other cards with same build (AMD 480, GTX580) works fine (same machine). After toggling AO all works fine on pro duo card. I only noticed it a week ago after installing the pro duo card. The system info shows my custom branch, but the blender2.8 branch also has this. If you need more info/test, please let me know. ![Screenshot from 2017-09-08 11-39-38.png](https://archive.blender.org/developer/F778846/Screenshot_from_2017-09-08_11-39-38.png) [system-info-pro-duo.txt](https://archive.blender.org/developer/F778844/system-info-pro-duo.txt) [console.txt](https://archive.blender.org/developer/F778845/console.txt)

blender-admin commented

2017-09-11 23:17:33 +02:00

This issue was referenced by f875e396ce

This issue was referenced by f875e396ce2bea2859501841d5ec90e6100af2ad

Clément Foucault commented

2017-09-11 23:18:25 +02:00

Changed status from 'Open' to: 'Resolved'

Clément Foucault closed this issue

2017-09-11 23:18:25 +02:00

Dalai Felinto commented

2017-09-12 10:18:54 +02:00

Added subscriber: @MikeErwin

Dalai Felinto commented

2017-09-12 10:18:54 +02:00

As it turned out, the issue was that we needed to bind a texture even if we were not sampling it. Linux with some setups wouldn't complain though.
Anyone may have a clue of what is the real issue and recommended official workaround? @brecht? @MikeErwin?

As it turned out, the issue was that we needed to bind a texture even if we were not sampling it. Linux with some setups wouldn't complain though. Anyone may have a clue of what is the real issue and recommended official workaround? @brecht? @MikeErwin?

Brecht Van Lommel commented

2017-09-12 16:18:33 +02:00

I think that's just something we have to follow, we've encountered that issue before. Either you bind all the textures or compile a different shader that doesn't have those textures. I don't know if the specification requires it, but there's enough drivers that just don't work otherwise.

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Eevee: viewport issues before toggling AO support #52593