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feat(ugc): metal, brushed steel and glow shaders on by default

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Tested in game: shader_metal 88, shader_brushed 89 and shader_glow 46 are
now the defaults, with brushed_colors defaulting to the drum lacquered
298,300,1002,1004 and transparent_colors to 129. Empty list settings take
the default; none turns a list off. The three shader ids set to 0 still
write live's all-plastic models byte for byte.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Aaron Kimbrell
2026-09-28 12:07:58 -05:00
parent 5396594690
commit 462a152a66
4 changed files with 36 additions and 30 deletions
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21
docs/UgcServer.md
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@@ -117,8 +117,9 @@ defaults. The table below goes through it step by step.
`Materials.xml`): LU's colors, the LDD colors LU doesn't have mapped onto the nearest LU one, colors LU Toolbox doesn't know but the
client's `Materials.xml` has (colors added to the brick database) from `Materials.xml`, unknown ones black. A
brick is transparent only when all of its materials are; transparent bricks get `transparent_opacity` (58.82%).
`transparent_colors` names colors that are transparent whatever `Materials.xml` says (129, "Tr. Bright Bluish
Violet with Glitter", has alpha 255 there); an opaque-listed color named there gets `transparent_opacity`.
`transparent_colors` (default 129; `none`: no colors) names colors that are transparent whatever `Materials.xml`
says (129, "Tr. Bright Bluish Violet with Glitter", has alpha 255 there); a color named there gets
`transparent_opacity`.
`color_brightness` (percent, default 100: unchanged) scales the models' colors after the variation below, not
the icons'.
3. Color variation: each material of each brick has its brightness shifted like LU Toolbox's "Apply Color Variation":
@@ -206,13 +207,13 @@ defaults. The table below goes through it step by step.
| Icon scene BrickBuild / Car: 50 mm lens, camera 53.4 / 19.5 degrees, sun at 21 / 50.3, 128 px, framing 1.03, transparent film | Same framing (`icon_*`); the light is brighter, to match the game's icons |
| Icon scene Rocket: 35 mm lens, other angles, two suns | Not built in; a preset for the rocket build type can be set in the icon editor |
### Metal and glow (opt in, not how live looked)
### Metal and glow (on by default, not how live looked)
Live's models, LU Toolbox's exports and the client's own builder (`LUNifBuilder_BK`, which writes only `S01_Opaque`
and `S01_Alpha`) all draw every brick with the LEGO shader, so metal colors look like grey plastic and glowing colors
like bright plastic. The UGC server can instead give them the client's metal and emissive shaders. Everything is off
by default, and off writes exactly the files it wrote before these settings existed (the same bytes, tested), so
nothing is made again needlessly.
like bright plastic. The UGC server gives them the client's metal and emissive shaders by default. Set the three
shader ids to 0 for live's look: off writes exactly the files it wrote before these settings existed (the same bytes,
tested).
How the client picks the shader (checked in the 1.10.64 client; Ghidra bookmarks under "UGCShaders"): player models
(LOT 14, and 6662) have RenderComponent shader 100, mapShaders "Multishader" (gameValue 9999). For a downloaded model
@@ -224,13 +225,13 @@ all of its levels, so each look needs a group of its own.
| Setting (`ugcconfig.ini`, dashboard: UGC models) | Default | What it writes |
| --- | --- | --- |
| `shader_metal` | 0 (off) | `S<id>_Metal_Model` for metal colors: 88 is Polished Metal (gameValue 98). The client loads `textures/metal/metal_reflection_polished.dds` itself and tints it by the vertex color (`Metallic.fx`, `Technique_Lighting_PolishedMetal_VertColor`). |
| `shader_brushed` | 0 (off) | `S<id>_Brushed_Model` for brushed steel colors: 89 is Brushed Steel (gameValue 99; it loads `metal_reflection_brushed.dds` and `_noise.dds`, the noise in object space). The textures are registered by the client (`RegisterBrushedSteelTextures`, 0x00467090) as global shader textures 6 and 7, so the .nif needs none. The client's Materials.xml has no brushed types, so this needs `brushed_colors` or a Materials.xml that names them. |
| `shader_glow` | 0 (off) | `S<id>_Glow_Model` for opaque glowing colors: 46 is LEGO-Emissive (gameValue 53), which draws `lerp(lit, vertex color, vertex alpha * material emissive red)`, opaque. |
| `shader_metal` | 88 | `S<id>_Metal_Model` for metal colors: 88 is Polished Metal (gameValue 98). The client loads `textures/metal/metal_reflection_polished.dds` itself and tints it by the vertex color (`Metallic.fx`, `Technique_Lighting_PolishedMetal_VertColor`). |
| `shader_brushed` | 89 | `S<id>_Brushed_Model` for brushed steel colors: 89 is Brushed Steel (gameValue 99; it loads `metal_reflection_brushed.dds` and `_noise.dds`, the noise in object space). The textures are registered by the client (`RegisterBrushedSteelTextures`, 0x00467090) as global shader textures 6 and 7, so the .nif needs none. The client's Materials.xml has no brushed types, so this needs `brushed_colors` or a Materials.xml that names them. |
| `shader_glow` | 46 | `S<id>_Glow_Model` for opaque glowing colors: 46 is LEGO-Emissive (gameValue 53), which draws `lerp(lit, vertex color, vertex alpha * material emissive red)`, opaque. |
| `glow_emissive` | 1 | The glow shapes' `NiMaterialProperty` emissive (grey): how far the shader goes from lit to the plain color. |
| `metal_material_types` | `shinySteel` | Materials.xml `MaterialType`s that are metal (empty: the default; `none`: none). |
| `brushed_material_types` | `brushedSteel,matteSteel` | Materials.xml `MaterialType`s that are brushed steel. |
| `brushed_colors` | empty | LEGO color ids that are brushed steel whatever their type (e.g. the drum lacquered 298, 300, 1002, 1004); they win over the metal and glow colors. |
| `brushed_colors` | 298,300,1002,1004 (the drum lacquered colors) | LEGO color ids that are brushed steel whatever their type; they win over the metal and glow colors. Empty: the default; `none`: no colors. |
Which color has which look is data, not a list in the code (`UgcModel::LookOf`): glow is LU Toolbox's glow table
(`UgcPalette::Glow`: 50, 294, 329, 9000-9027), metal is LU Toolbox's metallic table (`UgcPalette::IsMetallic`) plus