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Basic RTX Shaders Wiki

Basic RTX Shaders Wiki & Guide

wiki.9minecraft.net/basic-rtx-shaders/

Applies basic ray-tracing shader effects for enhanced lighting and reflections.

Guides

Step-by-step, in-game.

Compare Ray-Traced Lighting to Vanilla LightingSide-by-Side Testing To see the real difference Basic RTX makes, disable the shader temporarily and compare the same…Enable Ray Tracing and See the DifferenceActivating the Shader Once installed through Iris, Basic RTX appears in your shader list. Open the pause menu,…Optimize Performance While Using Ray TracingAdjusting Shader Settings Basic RTX is designed as a lightweight shader, but ray tracing still demands resources.…Troubleshoot Missing Lighting Effects or DarknessVerify the Shader is Active Confirm Basic RTX is selected in Video Settings → Shaders . The shader name should appear…

Frequently asked questions

How do I turn on ray tracing after installing the mod?
Open your shader settings through Iris (usually by pressing a hotkey in-game or through Video Settings), then select Basic RTX Shaders from the available shader list. The ray-traced lighting will activate immediately once applied.
Why does my world look too dark with this shader?
Check that your monitor brightness and gamma settings are appropriate, and ensure you're not in a cave or underground area where shadows naturally dominate. If lighting effects are missing entirely, see the troubleshooting guide for missing lighting effects.
Can I use this shader with my custom resource pack?
Yes, Basic RTX Shaders works with custom resource packs, though the ray-traced lighting is optimized for vanilla textures. Custom packs may affect how light bounces and shadows appear on non-standard blocks.
What's the performance impact compared to vanilla Minecraft?
Ray tracing adds significant GPU load, so expect lower frame rates depending on your graphics card. Use the performance optimization guide to adjust render distance, resolution, and ray tracing intensity to find a balance that works for your system.

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