Selecting the Pack in Video Settings
Once the shader pack is placed in your shaderpacks folder alongside a shader loader such as Iris or OptiFine, you can turn the monochrome film filter on directly from the pause menu.
1. Load into a world or open Options from the title screen.
2. Click Video Settings and open the Shader Packs (or Shaders) submenu.
3. Select Kurosawa Shaders from the list and confirm your choice to reload rendering.
4. Return to your world and verify that all colors have shifted to black and white with deeper shadows and bright highlights.
Switching Back for Color-Dependent Tasks
Because the post-processing fragment filter removes every color on screen, certain vanilla tasks—such as working with dyed wool builds, checking beacon colors, or distinguishing ores on cave walls by hue—can be trickier at a glance.
1. Open Options, go to Video Settings, and re-enter the Shader Packs screen.
2. Disable shaders or select the off option when you need full color visibility for dye work or block sorting.
3. Re-select Kurosawa Shaders once your task is done to restore the vintage cinema look.
4. If your shader loader adds a shader toggle keybind in the vanilla Controls menu, bind it to an unused key so you can switch between standard color and the black-and-white filter without opening menus.