Rev’s Better Shaders FAQ

Open the Options menu, go to Video Settings, then select Shaders. Find Rev's Better Shaders in the list and click it to activate. You'll need Iris installed for the shader menu to appear.

Shadow quality is likely set too low. Open the shader options (usually by pressing a key in-game or through Video Settings > Shaders > Shader Options) and increase the shadow resolution or quality slider to smooth them out.

No, this shader is designed for Iris and won't work with Optifine. Make sure you have Iris installed instead.

Water reflections may be disabled in the shader options. Check your shader settings for a reflection or water quality option and enable it, or verify that your graphics card supports the feature.

Yes, it works with most mods, but visual mods that change lighting or water (like other shaders or certain texture packs) may conflict. Sodium is fully compatible and recommended for performance.

Reduce shadow quality, disable or lower reflection distance, or decrease render distance in your world settings. Make sure you're using Sodium alongside Iris for the best performance.

The shader includes smooth cave lighting to reduce harsh shadows underground. If caves still feel too dark, check the shader options for a brightness or cave lighting slider and adjust it to your preference.

Shaders are client-side only, so they work on any server without needing to be installed there. Your single-player and multiplayer worlds will both display the shader.

Open the shader options menu and look for sky or atmosphere settings. You can usually tweak cloud density, sky color, and brightness from there.

No, Rev's Better Shaders only affects lighting, shadows, water, and the sky—it keeps your blocks and textures exactly as they are, preserving the vanilla feel.