GTA 4 RTX Remix Update 1.5.2 Cleans Up DLSS 5 and Headlight Noise

The new build uses Sparkles' DLSS 5 implementation, raises Litsprite alpha, and sets RTXDI to 64 samples by default.

Bojan Kicevski1 hour ago

0 17 1 minute read

Grand Theft Auto IV’s RTX Remix path tracing mod received Update 1.5.2, a focused build that changes the DLSS 5 implementation and tunes several visual effects. The release targets shadow flicker, overall stability, mist, tire smoke, and noisy headlights.

Modder xoxor4d replaced Lunks’ initial DLSS 5 integration with Sparkles’ implementation. The change cuts down on shadow flicker and improves stability, giving the mod a cleaner image when DLSS 5 is enabled.

Particle effects also received a small adjustment. Update 1.5.2 slightly increases the alpha of Litsprite particles, which improves the appearance of mist and tire smoke during gameplay.

Headlights should look cleaner as well. The update sets the default RTXDI sample count to 64, reducing the visible noise produced by vehicle lighting.

Update 1.5.2 follows the mod’s earlier RTX Remix update, which added new PBR materials, siren fixes, and a moonlight brightness setting. The latest release is smaller in scope, but its changes affect several parts of the image that players see throughout Liberty City.

GTA 4 RTX Remix Update 1.5.2 patch notes

The new build concentrates on rendering stability and a few effects that benefit from cleaner lighting and particle handling.

Replaced Lunks’ initial DLSS 5 integration with Sparkles’ implementation to reduce shadow flicker and improve stability.
Slightly increased the alpha of Litsprite particles to improve mist and tire smoke.
Set the default RTXDI sample count to 64 to reduce noise in headlights.

Players can download Update 1.5.2 from the mod’s GitHub release page.

Will you be trying Update 1.5.2 in Liberty City? Share your thoughts in the comments, and follow us on X, Bluesky, YouTube, Instagram, Steam, and Telegram for more PC mod coverage.

Grand Theft Auto IV is an action-adventure video game developed by Rockstar North and published by Rockstar Games. It is the eleventh title in the Grand Theft Auto series, and the first main entry since 2004's Grand Theft Auto: San Andreas.

The game is played from a third-person perspective and its world is navigated on-foot or by vehicle. Throughout the single-player mode, players play as Niko Bellic. An online multiplayer mode is included with the game, allowing up to 32 players to engage in both co-operative and competitive gameplay in a recreation of the single-player setting.

Two expansion packs were later released for the game, The Lost and Damned and The Ballad of Gay Tony, which both feature new plots that are interconnected with the main Grand Theft Auto IV storyline, and follow new protagonists.