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Double Dash Colour filter Vulkan problem.
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Double Dash Colour filter Vulkan problem.
06-13-2018, 04:06 AM
#1
TMCThomas Offline
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Hello! Now first of all I'm not sure if this is a driver issue or not. If yes than sorry for bothering you, if no than please read on. Double dash on vulkan has a problem at least on my galaxy s9 (exynos 9810) Let's just say that the whole screen has a big colour filter over it. And it's not random either. The snow map for example is blue because of the cold and other maps also have matching colours. The UI is not affected though. Now my question is if there would be a fix for this or if it's a driver issue which needs fixing on Samsung/arm's side. Here's the video to show the problem: https://www.youtube.com/watch?v=KUCg8nPqUYM
Other than that the game runs very well (Framerate wise) on vulkan though (while opengl is of course very slow due to the missing extension)
Tech Specs:
Dolphin Version: latest.
Android Version: Android 8.0 April security update.
Phone: Samsung Galaxy s9 (exynos 9810, mali-g72 mp18 4GB ram)
Settings: tried Default settings and various variantions but nothing helped.

Thanks in advance.
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06-13-2018, 04:10 AM
#2
DJBarry004 Offline
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Does it also happens in software renderer? What about GL?
Rig 1: Windows 10 Home | AMD A6-1450 @ 600/1000/1400 MHz | AMD Radeon HD Graphics 8250 | 4GB RAM | HP Pavilion TouchSmart 11.

Rig 2: Windows 10 Pro | Intel Core i7-2640M @ 780/2800/3500 MHz | Intel HD 3000 Mobile | 8GB RAM | Dell Latitude 6320.
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06-13-2018, 05:08 AM
#3
JonnyH Offline
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It's likely the mali gpu driver doesn't support dual-source blending. This is a somewhat known problem, and there's no workaround for the vulkan renderer.
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06-13-2018, 05:10 AM
#4
TMCThomas Offline
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(06-13-2018, 04:10 AM)DJBarry004 Wrote: Does it also happens in software renderer? What about GL?

Software doesn't work at all for me, just gives a black screen. OpenGL works but since the s9 exynos currently still doesn't support EXT_Buffer_storage. It would be great if vulkan was an option aswell. That's why I wondered wether it was a driver or dolphin bug.
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06-13-2018, 05:12 AM
#5
TMCThomas Offline
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(06-13-2018, 05:08 AM)JonnyH Wrote: It's likely the mali gpu driver doesn't support dual-source blending. This is a somewhat known problem, and there's no workaround for the vulkan renderer.

ah ok, so that means that there is a workaround on opengl since it works fine?
That's a shame though, thanks for you answer!
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06-13-2018, 05:25 AM
#6
JosJuice Offline
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(06-13-2018, 05:12 AM)TMCThomas Wrote: ah ok, so that means that there is a workaround on opengl since it works fine?

Yes, exactly.
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06-13-2018, 05:47 AM
#7
TMCThomas Offline
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Let's say I want to complain about this missing feature in the vulkan drivers, Where should I go? I guess to the Vulkan forums (or just arm?)
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06-13-2018, 07:03 AM
#8
JonnyH Offline
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(06-13-2018, 05:47 AM)TMCThomas Wrote: Let's say I want to complain about this missing feature in the vulkan drivers, Where should I go? I guess to the Vulkan forums (or just arm?)

ARM. Khronos itself (the people who make the vulkan spec) aren't the people writing the drivers that don't support all the features.
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