Effectual

Calls something that is on Kiln's roadmap. Parts of it may already run.

Evidence

Ran on Kiln's test stand (2026-11-04): EffectualFabric did not start: java.lang.NoClassDefFoundError: org/apache/logging/log4j/LogManager; EffectualFabricClient did not start: java.lang.NoClassDefFoundError: net/minecraft/client/particle/SpriteSet.

What it needs from Kiln

Mixin
com.mojang.blaze3d.vertex.VertexConsumer
net.fabricmc.fabric.api.client.particle.v1.ParticleProviderRegistry
net.fabricmc.fabric.api.client.particle.v1.ParticleProviderRegistry.PendingParticleProvider
net.minecraft.client.Camera
net.minecraft.client.particle.ParticleEngine
net.minecraft.client.particle.ParticleProvider
net.minecraft.client.particle.SingleQuadParticle
net.minecraft.client.particle.SingleQuadParticle.Layer
net.minecraft.client.particle.SpriteSet
net.minecraft.client.renderer.texture.TextureAtlasSprite
net.minecraft.core.BlockPos.MutableBlockPos
net.minecraft.core.Direction.Axis
net.minecraft.core.particles.BlockParticleOption
net.minecraft.core.particles.ParticleOptions
net.minecraft.core.particles.ParticleType
net.minecraft.core.particles.ParticleTypes
net.minecraft.core.particles.SimpleParticleType
net.minecraft.tags.BlockTags
net.minecraft.tags.FluidTags
net.minecraft.tags.ItemTags
net.minecraft.util.Mth
net.minecraft.world.effect.MobEffects
net.minecraft.world.entity.player.Abilities
net.minecraft.world.entity.vehicle.minecart.AbstractMinecart
net.minecraft.world.level.LightLayer
net.minecraft.world.level.biome.Biome
net.minecraft.world.level.block.FireBlock
net.minecraft.world.level.block.SnowLayerBlock
net.minecraft.world.level.block.WeatheringCopperCollection
net.minecraft.world.level.block.entity.BlockEntity
net.minecraft.world.level.block.entity.ChestBlockEntity
net.minecraft.world.level.block.entity.EnderChestBlockEntity
net.minecraft.world.level.material.FluidState
net.minecraft.world.phys.AABB
net.minecraft.world.phys.HitResult.Type
net.minecraft.world.phys.shapes.VoxelShape
org.apache.logging.log4j.LogManager
IntIterator.hasNext()
IntIterator.remove()
Long2ObjectMap.Entry.getValue()
and 57 more

On the roadmap: Minecraft's libraries and client API (0.2), Code next to data (0.3), Machines (0.4), Mixin (0.5)

In the author's words

Atmospheric effects and decorative particles.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file effectual-fabric-1.4.2-26.3.jar. The scan reads the mod's classes; it does not run them.

Reports from players

No reports from players yet.

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