Fog

Evidence

Ran on Kiln's test stand (2026-11-04): FogClientFabric did not start: java.lang.NoClassDefFoundError: net/minecraft/server/packs/resources/PreparableReloadListener.

What it needs from Kiln

• Mixin
• com.mojang.blaze3d.platform.InputConstants.Key
• net.fabricmc.fabric.api.client.command.v2.ClientCommandRegistrationCallback
• net.fabricmc.fabric.api.client.command.v2.ClientCommands
• net.fabricmc.fabric.api.client.command.v2.FabricClientCommandSource
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientTickEvents.EndLevelTick
• net.fabricmc.fabric.api.resource.v1.ResourceLoader
• net.minecraft.client.Camera
• net.minecraft.client.OptionInstance
• net.minecraft.client.Options
• net.minecraft.client.gui.Hud
• net.minecraft.client.gui.components.BossHealthOverlay
• net.minecraft.client.gui.components.ChatComponent
• net.minecraft.client.renderer.GameRenderer
• net.minecraft.core.HolderSet
• net.minecraft.core.HolderSet.Named
• net.minecraft.core.RegistryAccess
• net.minecraft.server.packs.PackType
• net.minecraft.server.packs.resources.Resource
• net.minecraft.server.packs.resources.ResourceManager
• net.minecraft.server.packs.resources.ResourceManager.Selector
• net.minecraft.server.packs.resources.SimplePreparableReloadListener
• net.minecraft.tags.TagKey
• net.minecraft.util.Mth
• net.minecraft.world.attribute.EnvironmentAttributeProbe
• net.minecraft.world.attribute.EnvironmentAttributeSystem
• net.minecraft.world.attribute.EnvironmentAttributes
• net.minecraft.world.effect.MobEffectInstance
• net.minecraft.world.effect.MobEffects
• net.minecraft.world.level.LightLayer
• net.minecraft.world.level.MoonPhase
• net.minecraft.world.level.biome.Biome
• net.minecraft.world.level.dimension.DimensionType
• net.minecraft.world.level.dimension.DimensionType.Skybox
• net.minecraft.world.level.levelgen.Heightmap
• net.minecraft.world.level.levelgen.Heightmap.Types
• net.minecraft.server.packs.resources.PreparableReloadListener
• InputConstants.UNKNOWN
• ClientTickEvents.END_LEVEL_TICK
• Minecraft.gameRenderer
• Minecraft.getCameraEntity()
• and 25 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Mixin (0.5)

In the author's words

Enhances fog rendering with dynamic, customizable effects - improving atmosphere and depth while preserving the vanilla experience and maintaining compatibility with other mods.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file fog-1.12.1+26.3-fabric.jar. The scan reads the mod's classes; it does not run them.