Bright objects in Raw HDR will appear black #119606

New Issue

Alaska · 2024-03-17T23:49:21+01:00

Alaska commented

2024-03-17 23:49:21 +01:00

System Information
Operating system: macOS-14.2.1-arm64-arm-64bit 64 Bits
Graphics card: Metal API Apple M1 Pro 1.2

Blender Version
Broken version: 4.2.0 Alpha, branch: main, commit date: 2024-03-17 18:08, hash: e4e4b51c833f
Worked: NA as it impacts all versions with HDR

Short description of error
When a extremely bright object is on screen, and HDR is enabled, with the RAW view transform, then the object will appear black.

With HDR disabled	With HDR enabled

Exact steps for others to reproduce the error
Download the .blend file below and entered rendered viewport on a HDR compatible Mac. Or follow these steps below:

Create a scene that has a really bright object. For example:
- Add a sun texture to the world shader.
- Change the render engine to Cycles so the sun disk will render properly.
- Increase the sun intensity if needed.
In the Render Properties panel change the Color Mangement -> View Transform setting to Raw.
Change the viewport to a rendered view mode. Notice how the bright object is white.
Enable HDR in the Render Properties panel under Color Mangement -> Display -> High Dynamic Range (Requires a compatible Mac). Notice how the bright object is now black.

~~There was a report for something similar a while ago. It impacted all platforms in SDR.~~
The other report was #98575, Thanks Jesse

**System Information** Operating system: macOS-14.2.1-arm64-arm-64bit 64 Bits Graphics card: Metal API Apple M1 Pro 1.2 **Blender Version** Broken version: 4.2.0 Alpha, branch: main, commit date: 2024-03-17 18:08, hash: `e4e4b51c833f` Worked: NA as it impacts all versions with HDR **Short description of error** When a extremely bright object is on screen, and HDR is enabled, with the RAW view transform, then the object will appear black. |With HDR disabled|With HDR enabled| |-|-| |![HDR off.jpg](/attachments/f1f4507c-3f84-418b-94be-0f2c07f56446)|![HDR on.jpg](/attachments/9cf3b756-cdaf-44ae-88b4-1bf99808efbf)| **Exact steps for others to reproduce the error** Download the .blend file below and entered rendered viewport on a HDR compatible Mac. Or follow these steps below: 1. Create a scene that has a really bright object. For example: - Add a sun texture to the world shader. - Change the render engine to Cycles so the sun disk will render properly. - Increase the sun intensity if needed. 2. In the `Render Properties` panel change the `Color Mangement -> View Transform` setting to `Raw`. 3. Change the viewport to a rendered view mode. Notice how the bright object is white. 4. Enable HDR in the `Render Properties` panel under `Color Mangement -> Display -> High Dynamic Range` (Requires a compatible Mac). Notice how the bright object is now black. ~~There was a report for something similar a while ago. It impacted all platforms in SDR.~~ The other report was #98575, Thanks Jesse

RAW HDR Clipping.blend

918 KiB

HDR off.jpg

92 KiB

HDR on.jpg

99 KiB

Alaska added the

labels 2024-03-17 23:49:22 +01:00

Jesse Yurkovich commented

2024-03-18 00:44:25 +01:00

The other bug was probably #98575

👍 1

Richard Antalik commented

2024-03-25 20:29:05 +01:00

Either I am not able to reproduce on Intel Mac, or I am doing this wrong. Can you upload .blend file so I can double check?

Alaska commented

2024-03-26 01:45:27 +01:00

I have attached a .blend file to the original report. Just open it and change to rendered viewport mode on a Mac that supports HDR.

As you already mentioned, this may be limited to Apple Silicon Macs, or specific generations of Apple Silicon Macs.

I have attached a .blend file to the original report. Just open it and change to rendered viewport mode on a Mac that supports HDR. As you already mentioned, this may be limited to Apple Silicon Macs, or specific generations of Apple Silicon Macs.

Richard Antalik commented

2024-03-26 10:50:01 +01:00

Seems like apple silicon related indeed. @mano-wii can you check?

Germano Cavalcante commented

2024-03-26 14:21:44 +01:00

I can confirm.

The problem does not appear immediately; the mouse needs to be outside the Blender window or stationary within Blender for about 3 seconds.

The High Dynamic Range was added in 2367ed2ef2, so cc'ing @Michael-Parkin-White-Apple, @brecht

I can confirm. The problem does not appear immediately; the mouse needs to be outside the Blender window or stationary within Blender for about 3 seconds. ![Captura de Tela 2024-03-26 às 10.11.07.png](/attachments/35477426-9c7c-4d81-bec9-39f4e971855e) The `High Dynamic Range` was added in 2367ed2ef2, so cc'ing @Michael-Parkin-White-Apple, @brecht

Captura de Tela 2024-03-26 às 10.11.07.png

1.2 MiB

Germano Cavalcante added

and removed

labels 2024-03-26 14:22:28 +01:00

Philipp Oeser commented

2024-03-26 14:33:52 +01:00

Can also confirm (same as @mano-wii )

**System Information**
Operating system: macOS-14.4-arm64-arm-64bit 64 Bits
Graphics card: Metal API Apple M2 1.2
version: 4.1.0, branch: blender-v4.1-release, commit date: 2024-03-25 20:42, hash: `40a5e739e270`

Can also confirm (same as @mano-wii ) ``` **System Information** Operating system: macOS-14.4-arm64-arm-64bit 64 Bits Graphics card: Metal API Apple M2 1.2 version: 4.1.0, branch: blender-v4.1-release, commit date: 2024-03-25 20:42, hash: `40a5e739e270` ```

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Bright objects in Raw HDR will appear black #119606