UNITY VERSION NOTE: The system has been submitted using Unity 2022.3.18f1 and supports Unity 2022.3 LTS and Unity 6 LTS in URP RenderGraph mode (compatibility mode is not supported). DX11 and Vulkan are supported in all modes, Vulkan may require few tweaking in RenderEvent and light intensity. DX12 is supported only for the new Ethereal 2024 module in RenderGraph. The included demos are currently mostly for Unity 2022.3 and the ones mentioning 'GRAPH' in their name plus the demos of the new Ethereal 2024 module are for Unity 6 Rendergraph.

Notes and Known Issues: 1. If the Camera has both rotation and X,Y,Z coordinates at zero, the screen may go black, to fix add a tiny displacement in Z axis of camera (0.0001 will do). A fix will come in next versions after identify the issue (Fixed in v1.1.8c).

Ethereal 2024 memory leak issue note in Unity 6:

If there is a memory leak in Unity 6 Preview when using the scene view in editor, while using the included sample ETHEREAL pipeline, please remove the first renderer and replace it with one that does not have any image effects, as the scene view seems to have a bug that can increase RAM due to the default renderer have image effects. Can use any other renderer for the game camera, than the default renderer. This issue only affects Unity 6 Preview and only when in Editor, in build there is no issues. Also it is generally recommended to avoid using image effects in the first default renderer, as helper cameras in general may try to use those effects.

Ethereal v1.5 Manual

Versions:

Ethereal v2.6.4

- Fixed an issue in Unity 6 RenderGraph where the Ethereal 2021 module's fog effect would leak from one side of the screen to another, because the rendertexture and shader sampler were not set in clamp mode.

- Added new demo showcasing the combination of Ethereal 2021 fog and impostor lights with Ethereal 2024 local light volumes and texture based fog wind noise (Video)

Ethereal v2.6.3

- Resolved a warning about Zmask texture not having been set when the game starts.

- Resolved an issue with profiler warning in Mac OS

- Resolved an issue where not having the required MainCamera tagged camera in the scene produced an error message.

Ethereal v2.6.2

- Fixed memory leak that happens when both Game and Scene view are active and the Default renderer in the pipeline is same as the one in Game view camera and that renderer uses Ethereal renderer feature.

Ethereal v2.6.1

- Added namespace to all helper scripts.

- Updated the Welcome screen with new information on the latest URP and HDRP releases.

Ethereal v2.6

- Fixed an issue where the RenderGraph version would not finalize the render cycle properly and was limiting the renderer setup options.

- Updated the manual with extra information.

Ethereal v2.5 (Major upgrade for RenderGraph and Unity 6)

- Added direct Unity 6 LTS version, uploaded from Unity 6000.0.25f1.

- Converted all demos to Unity 6 RenderGraph

Ethereal v2.4

- Fixed an issue where using the downsampling factor in Ethereal 2021 module in composite mode would also downsample the scene items.

Ethereal v2.3

- Separated the demos to Unity 6 compatibility (and 2022.3) and Unity 6 RenderGraph

- Added three prefabs for using Ethereal 2021, 2024 and both combined, tested in all modes including RenderGraph

- Rearranged the asset folders to further clarify the placement of the Ethereal 2021 and the new 2024 modules.

Ethereal v2.2

- Added rendertexture creation for the rendergraph version inside the checks whether the system is enabled, to avoid creation of the textures when the system is not enabled.

- Added new Unity 6000.0.16 specific renderer in the sample pipeline and related demos.

Ethereal v2.1

- Added larger resolution option in the configuration file of the new Ethereal 2024 volumetric ligthing module.

- Added refined demo with big number of shadowed local lights (Video)

- Added option to remove the GUI in the light rotator script

Ethereal v2.0

- Added Ethereal 2024 Beta with Unity 6 and RenderGraph support and a new Forward+ based local lights volumetrics system, with the ability to handle hundreds of fully shadowed local lights is now available on request. Video of Ethereal 2024 used with LUMINA GI and Sky Master ULTIMATE clouds.

Asset Folders:

Ethereal 2024 - New volumetric lighting system with focus on massive performance boost when using many shadowed local lights in Forward+. Contains Ethereal 2024 demos and demos combined with the core Ethereal module below.

VolumeFogSRP - Main Ethereal system that supports sun volumetrics, local lights, volumetric height fog, impostor volume lights and humidity based haze effects

EXTRAS - Optional Temporal AA module for noise reduction

Ethereal URP 2024 - Volumetric Lighting & Fog