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Faster Iris Shadow Mapper [FISM] Mod untuk Minecraft 1.20.1, 1.21.1

Sedikit meningkatkan kecepatan shadow mapper Iris. Bawaan di Iris sejak Iris 1.11.2

mulai dari maDU59_ · Modrinth
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Diperbarui 04.10.2026

⚠️ This has been included in Iris 1.11.2, it is now only useful for older MC versions or for forks like oculus ⚠️

Faster Iris Shadow Mapping is a really lightweight mod that prevents unneeded things from rendering during the shadow pass.

This project does not replace Iris, both needs to be used at the same time for it to work.

This mod also works with oculus.

Faster Iris Shadow Mapper [FISM] — tangkapan layar 2

How it works

During the shadow pass, for opaque models, the color of the model won't have any visual change, a blue car and a red car both cast the same shadow, no matter their color. So what this mod does is it prevents things like the text on signs, the banner patterns, the enchantment glint etc from rendering during the shadow pass. It only improves performances when some of those are visibles.

Performance showcase

Small base in a flat world (26.1.2 - 1.0.0)

With / Without | 100FPS / 87FPS (avg) | 63FPS / 58 FPS (0.05% low)

With: 100FPS
Without: 87FPS
  • +10% FPS

A lot of signs and banners (26.1.2 - 1.0.0)

With / Without | 15FPS / 9FPS (avg) | 10FPS / 1 FPS (0.05% low)

With: 15FPS
Without: 9FP
  • +50% FPS on average
  • +1000% FPS on 0.05% low
  • The signs have text on them but on the other side

Modpacks

Feel free to use this mod in your modpacks without asking for permission.

Cara memasang Faster Iris Shadow Mapper [FISM]

With Millida Launcher

  1. Install Millida Launcher

    The launcher is free: download it at millida.net/launcher and sign in with any nickname.

  2. Click “Install” on this page

    The launcher opens and installs the mod for Minecraft 1.20.1–26.3 on Fabric, Forge, NeoForge or Quilt automatically, together with its dependencies: Fabric API.

  3. Launch the game

    A profile with it appears in the launcher: click “Play”.

Manually

  1. Install Fabric, Forge, NeoForge or Quilt

    The loader must match the game version of the mod file, for example Minecraft 26.3. After installing it, a separate profile appears in your launcher.

  2. Download the file for your version

    In the version list above, pick the file fastershadowmapper+26.3-1.0.7.jar (22 KB) for your game version and loader.

  3. Put it in the mods folder

    The folder is inside .minecraft (Windows: %appdata%\.minecraft\mods). If it does not exist, create it. Required dependencies go there too: Fabric API.

  4. Launch the loader profile

    Open “Mods” in the main menu: Faster Iris Shadow Mapper [FISM] should be in the list.

Faster Iris Shadow Mapper [FISM] works on the player’s side only: there is no need to install it on a server.

Versi

Dengan dependensi

MinecraftLoaderFileTanggalTindakan
26.3Fabric, Quilt26.322.2 KB 8
26.3Fabric, Quilt26.322 KB
1.21.1NeoForge1.21.121.3 KB 1
1.20.1Fabric, Quilt1.20.123.2 KB 2
1.20.1Forge, NeoForge1.20.122.7 KB 5
26.2Fabric, Quilt26.222.7 KB 4
1.21.1Fabric, Quilt1.21.123.7 KB 7
1.20.1Fabric, Quilt1.20.123.1 KB

Yang dibutuhkan untuk menjalankan

FAQ

Which Minecraft versions does Faster Iris Shadow Mapper [FISM] work on?

There are files for 26.3, 26.2, 1.21.1, 1.21, 1.20.1. The newest is 26.3.

Is Faster Iris Shadow Mapper [FISM] for Forge or Fabric?

There are files for Fabric: 1.20.1–26.3, for Forge: 1.20.1, for NeoForge: 1.20.1–1.21.1 and for Quilt: 1.20.1–26.3.

What does Faster Iris Shadow Mapper [FISM] need to work?

Required: Fabric API. Without it the mod will not start: dependencies go into the same mods folder.

Do I need to install Faster Iris Shadow Mapper [FISM] on a server?

No. Faster Iris Shadow Mapper [FISM] works on the player’s side only: there is no need to install it on a server.

Where can I download Faster Iris Shadow Mapper [FISM] safely?

On this page: the file fastershadowmapper+26.3-1.0.7.jar (22 KB) is stored on Millida’s server, with no link shorteners. SHA-1 checksum: 316919da6f7e193035722e2ccad841e9b83babbd.

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Penulis: maDU59_Lisensi: MIT

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