Visual Swap

Evidence

Ran on Kiln's test stand (2026-11-04): VisualSwapClient did not start: java.lang.NoClassDefFoundError: org/apache/logging/log4j/LogManager.

What it needs from Kiln

• Mixin
• com.mojang.renderpearl.api.pipeline.RenderPipeline
• net.fabricmc.fabric.api.event.player.AttackEntityCallback
• net.fabricmc.fabric.api.event.player.UseEntityCallback
• net.minecraft.client.Options
• net.minecraft.client.particle.ParticleEngine
• net.minecraft.client.particle.SingleQuadParticle
• net.minecraft.client.particle.SingleQuadParticle.Layer
• net.minecraft.client.renderer.RenderPipelines
• net.minecraft.client.renderer.texture.TextureAtlas
• net.minecraft.client.renderer.texture.TextureAtlasSprite
• net.minecraft.client.resources.model.sprite.AtlasManager
• net.minecraft.core.component.DataComponents
• net.minecraft.data.AtlasIds
• net.minecraft.util.Mth
• net.minecraft.world.entity.LivingEntity.SwingDescription
• net.minecraft.world.entity.player.Inventory
• net.minecraft.world.item.MaceItem
• org.apache.logging.log4j.LogManager
• KeyMapping.isDown()
• Minecraft.getAtlasManager()
• Minecraft.options
• Minecraft.particleEngine
• GuiGraphicsExtractor.fill()
• LocalPlayer.getAttackStrengthScale()
• LocalPlayer.getCurrentSwing()
• LocalPlayer.getInventory()
• LocalPlayer.tickCount
• RandomSource.nextGaussian()
• Entity.getRandom()
• Entity.getY()
• Player.fallDistance
• Player.getAttackStrengthScale()
• Player.isFallFlying()
• Player.isInWater()
• Player.isMobilityRestricted()
• Player.isPassenger()
• Player.isSprinting()
• Player.onClimbable()
• Player.onGround()
• Player.tickCount
• and 2 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

Get realtime feedback for your attribute swaps

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file visual-swap-v1.2.0+mc-26.3.jar. The scan reads the mod's classes; it does not run them.