![Faster Iris Shadow Mapper [FISM]](uploads/icons/faster-iris-shadow-mapper-fism_bff198ef.webp){kind=icon}
Description
Gallery
Changelog
Versions
⚠️ 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.
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)
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- +10% FPS
A lot of signs and banners (26.1.2 - 1.0.0)
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- +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.
All Versions
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![Faster Iris Shadow Mapper [FISM] Screenshot](https://goldmedia.top/uploads/gallery/thumbs/faster-iris-shadow-mapper-fism_0_ca0c9bdf_thumb.jpg)
![Faster Iris Shadow Mapper [FISM] Screenshot](https://goldmedia.top/uploads/gallery/thumbs/faster-iris-shadow-mapper-fism_1_0e0cc428_thumb.jpg)
[1.0.7] Faster Iris Shadow Mapper [FISM] 1.0.7
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Improved Optifine compatibility to fix a performance issue
[1.0.5] Faster Shadow Mapper 1.0.5
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Added support for more mods. This will be migrated to another mod in the future as it won't cover only Iris and its forks anymore.
- It is not useful in any way with Iris on 26.3, it's just here until Modrinth approves the new project**
[1.0.5] Faster Iris Shadow Mapper 1.0.5
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Fixed incorrect mixin target
[1.0.6] Fancy World Animations 1.0.6
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Bug fixes
- Backported to forge 1.20.1
[1.0.6] Faster Iris Shadow Mapper 1.0.6
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Bug fixes
- Backported to forge 1.20.1
[1.0.4] Faster Iris Shadow Mapper 1.0.4
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Reduced chances of crashes when using old/beta Iris versions
- Removed unused code
[1.0.5] Faster Iris Shadow Mapper 1.0.5
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Fixed incorrect mixin target
[1.0.5] Fancy World Animations 1.0.5
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Fixed incorrect mixin target
[1.0.4] Fancy World Animations 1.0.4
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Fixed java requirement being too high
- Lowered fabric loader requirement
[1.0.4] Faster Iris Shadow Mapper 1.0.4
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Fixed java requirement being too high
- Lowered fabric loader requirement
[1.0.4] Faster Iris Shadow Mapper 1.0.4
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Fixed java requirement being too high
- Lowered fabric loader requirement
[1.0.4] Fancy World Animations 1.0.4
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Fixed java requirement being too high
- Lowered fabric loader requirement
[1.0.3] Fancy World Animations 1.0.3
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Fixed a crash happening only outside of dev env
[1.0.3] Fancy World Animations 1.0.3
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Fixed a crash happening only outside of dev env
[1.0.2] Fancy World Animations 1.0.2
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Reduced chances of crashes when using old/beta Iris versions
- Removed unused code
[1.0.2] Fancy World Animations 1.0.2
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Reduced chances of crashes when using old/beta Iris versions
- Removed unused code
[1.0.2] Fancy World Animations 1.0.2
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Reduced chances of crashes when using old/beta Iris versions
- Removed unused code
[1.0.2] Fancy World Animations 1.0.2
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Reduced chances of crashes when using old/beta Iris versions
- Removed unused code
[1.0.2] Fancy World Animations 1.0.2
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Reduced chances of crashes when using old/beta Iris versions
- Removed unused code
[1.0.2] Fancy World Animations 1.0.2
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Reduced chances of crashes when using old/beta Iris versions
- Removed unused code
[1.0.2] Fancy World Animations 1.0.2
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Reduced chances of crashes when using old/beta Iris versions
- Removed unused code
[1.0.2] Fancy World Animations 1.0.2
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Reduced chances of crashes when using old/beta Iris versions
- Removed unused code
[1.0.2] Fancy World Animations 1.0.2
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Reduced chances of crashes when using old/beta Iris versions
- Removed unused code
[1.0.1] Fancy World Animations 1.0.1
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Removed redundant mixins
[1.0.1] Fancy World Animations 1.0.1
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Removed redundant mixins
[1.0.1] Fancy World Animations 1.0.1
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Removed redundant mixins
[1.0.1] Fancy World Animations 1.0.1
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Removed redundant mixins
[1.0.1] Fancy World Animations 1.0.1
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Removed redundant mixins
[1.0.1] Fancy World Animations 1.0.1
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Removed redundant mixins
[1.0.1] Fancy World Animations 1.0.1
by maDU59_ on Oct 14, 2026
Download
# What's new:
- Removed redundant mixins
