Build Blueprint Preview

Evidence

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

What it needs from Kiln

• Mixin
• com.mojang.blaze3d.vertex.PoseStack
• com.mojang.blaze3d.vertex.PoseStack.Pose
• com.mojang.blaze3d.vertex.VertexConsumer
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents
• net.fabricmc.fabric.api.client.event.lifecycle.v1.ClientLifecycleEvents.ClientStopping
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Disconnect
• net.fabricmc.fabric.api.client.networking.v1.ClientPlayConnectionEvents.Join
• net.fabricmc.fabric.api.client.renderer.v1.Renderer
• net.fabricmc.fabric.api.client.renderer.v1.mesh.Mesh
• net.fabricmc.fabric.api.client.renderer.v1.mesh.MutableMesh
• net.fabricmc.fabric.api.client.renderer.v1.mesh.QuadEmitter
• net.fabricmc.fabric.api.client.renderer.v1.mesh.QuadView
• net.fabricmc.fabric.api.client.rendering.v1.RenderStateDataKey
• net.fabricmc.fabric.api.client.rendering.v1.SubmitRenderPhase
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelExtractionContext
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelExtractionEvents
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelExtractionEvents.EndExtraction
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelRenderContext
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelRenderEvents
• net.fabricmc.fabric.api.client.rendering.v1.level.LevelRenderEvents.CollectSubmits
• net.fabricmc.fabric.api.resource.v1.ResourceLoader
• net.fabricmc.loader.api.ModContainer
• net.fabricmc.loader.api.Version
• net.fabricmc.loader.api.metadata.ModMetadata
• net.minecraft.client.gui.components.AbstractSelectionList
• net.minecraft.client.gui.components.AbstractSelectionList.Entry
• net.minecraft.client.gui.components.AbstractSliderButton
• net.minecraft.client.gui.components.AbstractWidget
• net.minecraft.client.gui.components.Button
• net.minecraft.client.gui.components.Button.CreateNarration
• net.minecraft.client.gui.components.Button.OnPress
• net.minecraft.client.gui.components.ContainerObjectSelectionList
• net.minecraft.client.gui.components.ContainerObjectSelectionList.Entry
• net.minecraft.client.gui.components.Tooltip
• net.minecraft.client.model.Model
• net.minecraft.client.model.geom.ModelPart
• net.minecraft.client.model.geom.ModelPart.Cube
• net.minecraft.client.model.geom.ModelPart.Polygon
• net.minecraft.client.model.geom.ModelPart.Visitor
• and 52 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 client-side building helper that shows a blue blueprint-style preview of where your held block will be placed. 블록 설치 위치를 파란 청사진 오버레이로 미리 확인하세요!

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file build-blueprint-overlay-1.1.3-mc26.3.jar. The scan reads the mod's classes; it does not run them.