Shader DevTools

Evidence

Ran on Kiln's test stand (2026-11-04): CoreShaderDevToolsClient did not start: java.lang.NoClassDefFoundError: net/fabricmc/fabric/api/client/screen/v1/ScreenEvents.

What it needs from Kiln

• Mixin
• com.mojang.blaze3d.platform.Window
• 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.commands.GpuFence
• com.mojang.renderpearl.api.device.DeviceInfo
• com.mojang.renderpearl.api.device.GpuDevice
• com.mojang.renderpearl.api.pipeline.BindGroupLayout
• com.mojang.renderpearl.api.pipeline.BindGroupLayout.UniformDescription
• com.mojang.renderpearl.api.pipeline.DepthStencilState
• com.mojang.renderpearl.api.pipeline.RenderPipeline
• com.mojang.renderpearl.api.pipeline.ShaderType
• com.mojang.renderpearl.api.pipeline.UniformType
• com.mojang.renderpearl.api.textures.AddressMode
• com.mojang.renderpearl.api.textures.FilterMode
• com.mojang.renderpearl.api.textures.GpuSampler
• com.mojang.renderpearl.api.textures.GpuTexture
• com.mojang.renderpearl.api.textures.GpuTextureView
• net.fabricmc.fabric.api.client.screen.v1.ScreenEvents
• net.fabricmc.fabric.api.client.screen.v1.ScreenEvents.AfterInit
• net.fabricmc.fabric.api.client.screen.v1.ScreenKeyboardEvents
• net.fabricmc.fabric.api.client.screen.v1.ScreenKeyboardEvents.AllowKeyPress
• net.minecraft.client.KeyboardHandler
• net.minecraft.client.Screenshot
• net.minecraft.client.gui.components.Button
• net.minecraft.client.gui.components.Button.Builder
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.gui.components.CycleButton
• net.minecraft.client.gui.components.CycleButton.Builder
• net.minecraft.client.gui.components.CycleButton.OnValueChange
• net.minecraft.client.gui.components.EditBox
• net.minecraft.client.gui.components.MultiLineEditBox
• net.minecraft.client.gui.components.MultiLineEditBox.Builder
• net.minecraft.client.gui.components.toasts.SystemToast
• net.minecraft.client.gui.components.toasts.SystemToast.SystemToastId
• net.minecraft.client.input.KeyEvent
• net.minecraft.client.input.MouseButtonEvent
• and 50 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

Client-side Fabric mod for working on Minecraft core shaders, post shaders, post effects, and render pipelines without restarting the game or reloading the resource pack.

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file coreshader-devtools-1.3.17.jar. The scan reads the mod's classes; it does not run them.