EEVEE doesn't cast shadow on PNG images with transparent background. #66387

New Issue

Yash · 2019-07-03T21:21:43+02:00

Yash commented

2019-07-03 21:21:43 +02:00

System Information
Operating system: Windows 10 1803
Graphics card: RX 570

Blender Version
Broken: (example: blender-2.80-f990c23bcfb5-win64, master, 2019-07-03, as found on the splash screen)
Worked: (optional)

Short description of error
Transparency does work when I switch Blend mode to "Alpha Blend" but shadows do not work correctly when I switch shadow mode to "Alpha Clip or Alpha Hashed"
When I try to change shadow mode to "Alpha Clip", shadows disappear immediately. You can see shadows only when the shadow mode is set to opaque. This does not work when we use alpha channel PNG "Images as Planes".

Transparency in EEVEE.blend
Exact steps for others to reproduce the error
I have attached the file.

Change the shadow mode to other than opaque and see shadows will disappear.

**System Information** Operating system: Windows 10 1803 Graphics card: RX 570 **Blender Version** Broken: (example: blender-2.80-f990c23bcfb5-win64, master, 2019-07-03, as found on the splash screen) Worked: (optional) **Short description of error** Transparency does work when I switch Blend mode to "Alpha Blend" but shadows do not work correctly when I switch shadow mode to "Alpha Clip or Alpha Hashed" When I try to change shadow mode to "Alpha Clip", shadows disappear immediately. You can see shadows only when the shadow mode is set to opaque. This does not work when we use alpha channel PNG "Images as Planes". ![Bug.jpg](https://archive.blender.org/developer/F7565106/Bug.jpg) [Transparency in EEVEE.blend](https://archive.blender.org/developer/F7565116/Transparency_in_EEVEE.blend) **Exact steps for others to reproduce the error** I have attached the file. 1. Change the shadow mode to other than opaque and see shadows will disappear.

Yash commented

2019-07-03 21:21:43 +02:00

Added subscriber: @xataari

Marcin Twarowski commented

2019-07-04 09:24:21 +02:00

Added subscriber: @MarcinTwarowski

Marcin Twarowski commented

2019-07-04 09:24:21 +02:00

Works here on: Win 10, GTX 1080, c252fe7a32

Works here on: Win 10, GTX 1080, c252fe7a32 ![obraz.png](https://archive.blender.org/developer/F7566003/obraz.png)

Yash commented

2019-07-04 10:27:10 +02:00

How did you do that? I tried every shadow option it doesn't work for me. I use different PNG images, the problem is still persisting. I'm using blender-2.80-f990c23bcfb5-win64, master, 2019-07-03. Shadows work until the image texture isn't connected to node setup. See another mesh which works fine but it does not have any image texture.
I read this https://blenderartists.org/t/eevee-shadows/1150594/20
It is working on your PC because you have an nVidia GPU. I think the problem is related to AMD GPUs. I am using RX 570. Driver version: 19.5.2
Thanks for the response!

How did you do that? I tried every shadow option it doesn't work for me. I use different PNG images, the problem is still persisting. I'm using blender-2.80-f990c23bcfb5-win64, master, 2019-07-03. Shadows work until the image texture isn't connected to node setup. See another mesh which works fine but it does not have any image texture. I read this https://blenderartists.org/t/eevee-shadows/1150594/20 It is working on your PC because you have an nVidia GPU. I think the problem is related to AMD GPUs. I am using RX 570. Driver version: 19.5.2 Thanks for the response!

Marcin Twarowski commented

2019-07-04 10:37:58 +02:00

Could be a problem with your card. Developers will have to look at it.

Philipp Oeser commented

2019-07-04 10:44:27 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2019-07-04 10:44:27 +02:00

Think this is related to the GPU on Windows and looks like a duplicate of #61129?

Philipp Oeser commented

2019-07-04 10:45:44 +02:00

Closed as duplicate of #61129

Philipp Oeser closed this issue

2019-07-04 10:45:44 +02:00

Yash commented

2019-07-04 10:56:04 +02:00

Yeah, You are right. This is happening to AMD GPUs only and mostly with RX series. Seems like this bug has not fixed for a long time. Any information about fixing it?

Philipp Oeser commented

2019-07-04 11:02:43 +02:00

Please use #61129 for ongoing discussion and ask there (relevant developer will not read this here...)

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EEVEE doesn't cast shadow on PNG images with transparent background. #66387