Rtgi 0.17.0.2 May 2026

⚠️ Do not use with older ReShade 4.x – missing math functions.

uniform float fAdaptiveMinStep <
    ui_type = "slider";
    ui_min = 0.05;
    ui_max = 0.5;
    ui_label = "Adaptive Step Min (smooth)";
> = 0.1;
uniform float fAdaptiveMaxStep <
ui_type = "slider";
ui_min = 0.5;
ui_max = 2.0;
ui_label = "Adaptive Step Max (rough)";
> = 1.0;

Because RTGI is a paid shader (available via Patreon), the installation process differs from standard free ReShade effects.

Prerequisites:

Step-by-Step:

Absolutely, if you are a current subscriber. The stability improvements alone justify the update. rtgi 0.17.0.2

However, a note of caution: RTGI is not a miracle worker. Because it is a post-process effect (it only sees the 2D final image and the depth buffer), it cannot handle data that isn't on the screen. If a light source is behind the camera, RTGI cannot bounce it. For that, you need native engine raytracing (like Cyberpunk 2077's Psycho mode).

That said, for 95% of third-person and first-person games released before 2018, RTGI 0.17.0.2 is currently the best way to experience real-time global illumination without rewriting the game engine. ⚠️ Do not use with older ReShade 4

Look for a section where rays are traced with a fixed step size.