[Feature Request]: Separate HUD from Final Compositing Shader for OptiScaler Compatibility

[nekusu]

Version Number

v0.0.9

Describe the Issue

OptiScaler requires a HUD-less render target to properly apply frame generation without causing UI ghosting. However, in FF7 Rebirth, the game composites the HUD, color grading, and other post-processing effects in a single shader pass, making it impossible for OptiScaler to capture a HUD-less frame.

Current Problem

• Unlike most Unreal Engine games, FF7 Rebirth does not render the final scene first and then overlay the UI in a separate pass.
• Instead, the UI (SRV3) is part of the same final compositing shader that applies color grading and other effects.
• Because of this, OptiScaler cannot exclude the HUD, leading to ghosting artifacts during frame generation.

SRV Texture 1

SRV Texture 3

RTV (Result)

Proposed Solution

Would it be possible to modify the game’s shaders to:

1. Nullify SRV3 (the UI texture) in the final compositing shader.
2. Reapply the UI in a separate shader pass after this one, OptiScaler can then capture the result (RTV) as HUD-less.

Since your mod already tweaks the HUD, we were wondering if this might be feasible within your existing work.

Thanks for your time and for all your work on FF7RebirthFix!

Steps to Reproduce

N/A

Log File

N/A

Save Game (If Relevant)

No response

[Lyall]

To be honest I'm not sure how this could even be accomplished. I'm fairly clueless when it comes to graphics programming and the majority of what FF7RebirthFix does is modify the existing HUD setup.

[jackyaz]

Does enabling Immediate Capture in Optiscaler work for you? For me that option removes all HUD ghosting

[Drag00nll0yd]

Immediate Capture does stop HUD ghosting but as soon as you enable it the game goes from silky smooth with frame gen on to constant microstutters when turning the camera so there's definitely some black magic going on here

[Hezakiel]

I tried everything to make the FG works without HUD ghosting, but alas didn't find anything. I think the only to make FG work with Opti is to implement Lyall idea