community-shaders/skyrim-community-shaders

Add linear color space handling to ISReflectionsRayTracing.hlsl

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#1,900 opened on Feb 17, 2026

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Description

ISReflectionsRayTracing.hlsl is an image-space post-processing shader that performs color sampling and blending operations requiring proper linear color space handling for the linear lighting system.

Required Changes

ISReflectionsRayTracing.hlsl handles screen-space reflections and should use conditional Color::IrradianceToLinear/Gamma conversions similar to the pattern used in ISCompositeLensFlareVolumetricLighting.hlsl.

Context

This issue was identified during review of PR #1899 which improves stereo UV handling in VR. The linear color space handling is a separate concern that should be addressed in a future PR.

Related PR: https://github.com/doodlum/skyrim-community-shaders/pull/1899 Requested by: @alandtse

Contributor guide

Research direction
Inspect the pattern used in ISCompositeLensFlareVolumetricLighting.hlsl for linear/gamma conversions and apply similar conditional conversions to ISReflectionsRayTracing.hlsl. Ensure that the conversions are applied before and after color sampling and blending operations as appropriate.
Tech stack
cpp
Domain
computer graphics
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Fresh
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
None
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75