Natural Motion Blur

Evidence

Ran on Kiln's test stand (2026-11-04): NaturalMotionBlurMod did not start: java.lang.NoClassDefFoundError: org/apache/commons/io/FileUtils.

What it needs from Kiln

• an access widener
• Mixin
• com.mojang.blaze3d.buffers.Std140Builder
• com.mojang.blaze3d.framegraph.FrameGraphBuilder
• com.mojang.blaze3d.pipeline.MainTarget
• com.mojang.blaze3d.pipeline.RenderTarget
• com.mojang.blaze3d.pipeline.TextureTarget
• com.mojang.blaze3d.platform.InputConstants.Key
• com.mojang.blaze3d.platform.Window
• com.mojang.blaze3d.resource.GraphicsResourceAllocator
• com.mojang.blaze3d.resource.ResourceHandle
• com.mojang.blaze3d.systems.RenderSystem
• com.mojang.renderpearl.api.GpuFormat
• com.mojang.renderpearl.api.buffers.GpuBuffer
• com.mojang.renderpearl.api.buffers.GpuBufferSlice
• com.mojang.renderpearl.api.buffers.GpuBufferSlice.MappedView
• com.mojang.renderpearl.api.commands.CommandEncoder
• com.mojang.renderpearl.api.device.GpuDevice
• com.mojang.renderpearl.api.textures.GpuTexture
• com.mojang.renderpearl.api.textures.GpuTextureView
• com.mojang.renderpearl.backend.vulkan.VulkanCommandEncoder
• com.mojang.renderpearl.backend.vulkan.VulkanConst
• com.mojang.renderpearl.backend.vulkan.VulkanDevice
• com.mojang.renderpearl.backend.vulkan.VulkanGpuTexture
• com.mojang.renderpearl.backend.vulkan.VulkanQueue
• 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.networking.v1.ClientPlayConnectionEvents
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Join
• net.minecraft.client.renderer.GameRenderer
• net.minecraft.client.renderer.LevelTargetBundle
• net.minecraft.client.renderer.PostChain
• net.minecraft.client.renderer.PostChain.TargetBundle
• net.minecraft.client.renderer.PostPass
• net.minecraft.client.renderer.PostPass.Input
• net.minecraft.client.renderer.ShaderManager
• net.minecraft.client.renderer.texture.AbstractTexture
• net.minecraft.client.renderer.texture.TextureManager
• net.minecraft.network.chat.Style
• org.apache.commons.io.FileUtils
• org.lwjgl.PointerBuffer
• and 27 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

A motion blur mod that tries to mimic human vision motion blur by blending frames together, reducing stroboscopic effects and making motion appear more fluent.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file naturalmotionblur-1.4.5+mc26.3.jar. The scan reads the mod's classes; it does not run them.