Reusable surfaces

Material Library

Material Lab / Gallery

Portable definitions shared with terrain and animal editors. This lab edits a snapshot; it never silently changes a terrain or starter animal.

Preview primitiveLighting / atmosphereLight color, direction, exposure and horizon affect the preview. Reflections use a neutral procedural room. Clouds and fog are not simulated.Material presetNameID

Create random material / Chaos

Initialize unlocked properties with a new seed. Locked properties retain this material. Save keeps all resulting values and the creation lighting.

ModeSeedLock colorLock finishLock detail

Advanced generation groups

Character, emission and opacity are locked initially. Unlock only the groups you want to explore. Terrain accepts opaque, non-emissive materials without animal surface character.

Lock characterLock emissionLock opacity

Base colorroughness · 0.30metalness · 0.00opacity · 1.00Surface characterWetness · 0.95Character scaleCharacter relief

Fine detail / bump

Enable deterministic fine relief

Material explanation

Wet frog skin (wet-frog): base color #547e38; nonmetallic response.

Roughness 0.3: tight, reflective highlights. Metalness 0 controls how much base color tints reflections.

No authored fine relief; the surface is geometrically smooth.

skin character uses the existing animal material adapter. It is not supported by opaque terrain surfaces.

Wet-film response: effective roughness 0.040, clearcoat 0.973, coat roughness 0.036. Wetness above 0.4 progressively adds a smooth film; skin relief stays independently editable.

Lighting and exposure change the visible response without editing this material definition.

Material internals / Response formulas

Base color is sRGB input; PBR lighting evaluates in linear space. Roughness controls highlight width and metalness interpolates dielectric/metal response. Fine detail uses versioned, seeded periodic noise through the built-in bump input, without displacement.

w = wetness
t = clamp((w - 0.4) / 0.6, 0, 1)
film = t * t * (3 - 2*t)
roughness = max(0.02, baseRoughness * (0.82 - 0.22*w) * (1 - 0.8*film))
clearcoat = 0.08 + 0.3*w + 0.62*film
coatRoughness = 0.5 - 0.2*w - 0.28*film

The editable parameters above feed renderer adapters. This is reference math, not a separate shader language. The JSON below contains the saved inputs.

Apply a saved surface in Evolution → Build from pieces → select a piece → Material preset. Color preservation keeps species markings intact.

Open animal editor Use in a terrain palette Lighting rigs and procedural sky presets

Material JSON

Preview and terrain use the same portable material parameters. Save creates a reusable library preset.