Added colored lighting and dynamic colored lighting for Sable and Flywheel.

Also, GPU-based light rendering has been optimized; the frame rate (FPS) is now nearly identical to that of the vanilla game.

ColorLight is now also compatible with Sable, but only when using GPU rendering.

This release adds:

• GPU rendering: it is now possible to render using GLSL shaders instead of vertex-based rendering via FRAPI. This lighting method is available in Sodium versions 0.8.x (for Minecraft 1.21.11) and 0.9.x (for 26.x). The color may differ slightly, but not significantly.
• Full support for the LOD mods Voxy and Distant Horizons; light now propagates according to the properties of the LOD geometry. The color matches that of the GPU rendering method, though there are minor differences regarding vertices.
• Support for resource packs, allowing you to choose your own colors—more details can be found [here](https://github.com/MrHikmen/ColorLight/blob/26.3/examples/API.md).

The ColorLight version for 1.21.1 will be released later; I wanted to include compatibility with the Sable mod as well.

This release adds:

• GPU rendering: it is now possible to render using GLSL shaders instead of vertex-based rendering via FRAPI. This lighting method is available in Sodium versions 0.8.x (for Minecraft 1.21.11) and 0.9.x (for 26.x). The color may differ slightly, but not significantly.
• Full support for the LOD mods Voxy and Distant Horizons; light now propagates according to the properties of the LOD geometry. The color matches that of the GPU rendering method, though there are minor differences regarding vertices.
• Support for resource packs, allowing you to choose your own colors—more details can be found [here](https://github.com/MrHikmen/ColorLight/blob/26.3/examples/API.md).

The ColorLight version for 1.21.1 will be released later; I wanted to include compatibility with the Sable mod as well.

This release adds:

• GPU rendering: it is now possible to render using GLSL shaders instead of vertex-based rendering via FRAPI. This lighting method is available in Sodium versions 0.8.x (for Minecraft 1.21.11) and 0.9.x (for 26.x). The color may differ slightly, but not significantly.
• Full support for the LOD mods Voxy and Distant Horizons; light now propagates according to the properties of the LOD geometry. The color matches that of the GPU rendering method, though there are minor differences regarding vertices.
• Support for resource packs, allowing you to choose your own colors—more details can be found [here](https://github.com/MrHikmen/ColorLight/blob/26.3/examples/API.md).

The ColorLight version for 1.21.1 will be released later; I wanted to include compatibility with the Sable mod as well.

This release adds:

• GPU rendering: it is now possible to render using GLSL shaders instead of vertex-based rendering via FRAPI. This lighting method is available in Sodium versions 0.8.x (for Minecraft 1.21.11) and 0.9.x (for 26.x). The color may differ slightly, but not significantly.
• Full support for the LOD mods Voxy and Distant Horizons; light now propagates according to the properties of the LOD geometry. The color matches that of the GPU rendering method, though there are minor differences regarding vertices.
• Support for resource packs, allowing you to choose your own colors—more details can be found [here](https://github.com/MrHikmen/ColorLight/blob/26.3/examples/API.md).

The ColorLight version for 1.21.1 will be released later; I wanted to include compatibility with the Sable mod as well.

Support for Distant Horizons has been added; you can find more details in [Distant Horizons](https://github.com/MrHikmen/ColorLight/blob/shader-gpu-pipeline-26.3/src/main/java/me/mrhikmen/colorlight/client/compat/lod/dh/_DistantHorizons.md).

Voxy now performs better and handles lighting loading internally; the system of clustering lights (4x4, 8x8, 16x16...) has been completely removed in favor of treating each light source individually. Lighting data is now saved to persistent storage at minecraft/colorlight/voxylight/<filename>.

It is compatible with Nvidium; lighting will not disappear during GPU rendering (though a crash may occur if Nvidium is disabled).

Switched from Lua to JSON format [API.md](https://github.com/MrHikmen/ColorLight/blob/shader-gpu-pipeline-26.3/examples/API.md)

On top of that, all that remains before the full 0.2.5 release is to add DH compatibility.

Improved night-time open-sky lighting for GPU

All changes are at https://github.com/MrHikmen/ColorLight/tree/38bfb6c54a253a13c25bfdce31c460f1e44e4ee6

# ColorLight — GPU Lighting Mode

ColorLight's colored light is applied on the graphics card: a Sodium shader looks up the light for every pixel instead of baking colour into chunk vertices. The light is smoother, and chunks are not rebuilt when it changes.

Light propagation is still computed on the CPU (the Lua methods grid and smooth). Only the application of light to pixels has been moved to the GPU.

## How it works

• Light volume on the GPU.** The light lives in a sparse volume around the camera, stored in two texel buffers (GpuLightVolume):

• data**: a header (camera, flags, tint settings) and a list of sections, each holding a slot number or -1;
• pool**: slots of 4096 cells (16 KiB each); only a section that holds light gets a slot. A cell stores the light colour 0x00BBGGRR and a "solid block" bit.

Sections are addressed in a ring, so the window follows the camera without moving any data. The shader window is 31 sections horizontally and 15 vertically. A light change rewrites only a few KiB of video memory.

• Shader.** A copy of Sodium's terrain shader (colored_terrain.vsh/.fsh) with a shared include, colorlight_data.glsl. For every pixel it:

1. determines the face normal from screen-space derivatives;
2. reads the light colour and level from the volume (with smooth interpolation);
3. builds the final colour: vanilla lighting in which the part added by block light is recoloured to the source's colour.

Sky light is left untouched, so the tint washes out by day and is fully visible at night. Fully emissive faces (glowing models) stay vanilla.

• Sodium integration.** Three small mixins (mixin/sodium):

| Mixin | What it does |
|---|---|
| ShaderChunkRendererMixin | Adds the volume buffers and swaps the terrain shaders for ours |
| SodiumWorldRendererMixin | Passes the camera position to the volume once per frame |
| DefaultChunkRendererMixin | Binds the buffers for every terrain draw |

• Fallback.** The GPU mode turns on only if all three mixins applied (they are skipped for unverified Sodium versions). If anything goes wrong, the mod switches back to the vertex-colour mode on its own and re-meshes. The GPU mode is not used with Iris shader packs.

## Settings

| Setting | What it does |
|---|---|
| Shader lighting (GPU) | Turns the mode on; applies immediately; unavailable while a shader pack is enabled |
| GPU light memory | How many 16×16×16 sections of light are kept on the graphics card (default 768, from 64 to 4096) |
| Tint vividness | How early the colour shows up and how far from the source it lasts |

• Tint vividness** (tint_gamma, 0–200%):

| Value | Behaviour |
|---|---|
| 0–20% | The colour is vivid and saturated all the way to the edge of the light; only the brightness falls off |
| 55% (default) | The colour lasts noticeably farther and weakens toward the edge |
| 100% and above | The colour fades together with the light; above 100% it stays subtle until a block is almost fully l
...

Port Colorlight 0.2.4 in 1.21.1

Fixed invisible items in the inventory

Added:
Light fade-out setting (time until the light extinguishes)
Public API for other mods (usage instructions coming soon)

Fixed/Refined:
Fixed https://github.com/MrHikmen/ColorLight/issues/11
Refined LDL compatibility; dynamic lighting now works better

Removed:
Voxy compatibility (the approach used would not have yielded satisfactory results)

Added:
Light fade-out setting (time until the light extinguishes)
Public API for other mods (usage instructions coming soon)

Fixed/Refined:
Fixed https://github.com/MrHikmen/ColorLight/issues/11
Refined LDL compatibility; dynamic lighting now works better

Removed:
Voxy compatibility (the approach used would not have yielded satisfactory results)

Added:
Light fade-out setting (time until the light extinguishes)
Public API for other mods (usage instructions coming soon)

Fixed/Refined:
Fixed https://github.com/MrHikmen/ColorLight/issues/11
Refined LDL compatibility; dynamic lighting now works better

Removed:
Voxy compatibility (the approach used would not have yielded satisfactory results)