ImmediatelyFast

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

What it needs from Kiln

an access widener
Mixin
com.mojang.blaze3d.ProjectionType
com.mojang.blaze3d.pipeline.RenderTarget
com.mojang.blaze3d.pipeline.TextureTarget
com.mojang.blaze3d.platform.TextureUtil
com.mojang.blaze3d.systems.RenderSystem
com.mojang.blaze3d.systems.SamplerCache
com.mojang.blaze3d.vertex.PoseStack
com.mojang.blaze3d.vertex.PoseStack.Pose
com.mojang.blaze3d.vertex.VertexConsumer
com.mojang.renderpearl.api.GpuFormat
com.mojang.renderpearl.api.buffers.GpuBuffer
com.mojang.renderpearl.api.buffers.GpuBufferSlice
com.mojang.renderpearl.api.commands.CommandEncoder
com.mojang.renderpearl.api.commands.RenderPass
com.mojang.renderpearl.api.device.DeviceInfo
com.mojang.renderpearl.api.device.DeviceLimits
com.mojang.renderpearl.api.device.GpuDevice
com.mojang.renderpearl.api.pipeline.ShaderType
com.mojang.renderpearl.api.textures.AddressMode
com.mojang.renderpearl.api.textures.FilterMode
com.mojang.renderpearl.api.textures.GpuTexture
com.mojang.renderpearl.backend.opengl.DirectStateAccess
com.mojang.renderpearl.backend.opengl.GlConst
com.mojang.renderpearl.backend.opengl.GlStateManager
net.fabricmc.loader.api.ModContainer
net.fabricmc.loader.api.Version
net.fabricmc.loader.api.metadata.ModMetadata
net.minecraft.client.gui.components.debug.DebugScreenDisplayer
net.minecraft.client.gui.components.debug.DebugScreenEntry
net.minecraft.client.gui.components.debug.DebugScreenEntryStatus
net.minecraft.client.gui.components.debug.DebugScreenProfile
net.minecraft.client.gui.font.FontManager
net.minecraft.client.gui.render.DynamicAtlasAllocator
net.minecraft.client.gui.render.DynamicAtlasAllocator.Slot
net.minecraft.client.gui.render.GuiItemAtlas
net.minecraft.client.gui.render.GuiItemAtlas.SlotView
net.minecraft.client.gui.render.GuiRenderer
net.minecraft.client.renderer.GameRenderer
net.minecraft.client.renderer.Projection
net.minecraft.client.renderer.ProjectionMatrixBuffer
and 30 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

Speed up immediate mode rendering in Minecraft

Scan

Scanned on 4 November 2026 against Kiln 0.2.0, file ImmediatelyFast-Fabric-1.17.1+26.3.jar. The scan reads the mod's classes; it does not run them.

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