Texture Paint Suite

Texture Paint Suite

Module: Art · Category: Paint · Tool ID: LayeredTexturePaintSuite

A three-tab production paint suite. Splat Map generates RGBA splat-map textures + a matching material function for landscape and modular blending. Vertex Color does channel-isolated fills, blur, and JSON export. Tri-Planar generates a tri-planar projection material function with configurable scale and blend sharpness.

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When to use it

• Building splat-map-driven blend materials (landscape, modular kit, terrain)
• Filling vertex colors on selected meshes (channel-isolated, with blur smoothing)
• Generating tri-planar material functions for kitbashed or auto-mapped materials
• Quick exports of vertex-color data as JSON for downstream tooling

When not to use it

• Don’t expect interactive 3D painting in this tool — for that, use Vertex Color Painter (Modeling module) or open the Painting Lab custom asset editor

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Opening the tool

1. Open the EQLabs Hub and search for Paint or Splat (or browse to Art → Paint)
2. Click the tool card
3. Use the tab bar: Splat Map, Vertex Color, or Tri-Planar

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Tab 1 — Splat Map

Generate an RGBA splat map texture and a matching material function.

Interface

Field	What it does	Default
Splat Layer Count	How many channels to use (max 4 for RGBA)	4
Splat Resolution	Output texture size	1024
Splat Output Path	Folder for the generated texture and material function	/Game/EQLabs/SplatMaps
Layer names list	One name per channel (R/G/B/A) — used in the material function
Generate Splat Textures	Creates the RGBA splat texture
Generate Splat Material	Creates a Material Function that samples the splat texture and exposes per-channel layer outputs

Workflow

1. Set layer count (typically 4 for full RGBA)
2. Name each layer (e.g., Grass, Dirt, Stone, Sand)
3. Set resolution and output path
4. Click Generate Splat Textures + Generate Splat Material
5. Use the material function in your master material to blend layers

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Tab 2 — Vertex Color

Channel-isolated fill, blur, and JSON export for vertex colors on selected meshes.

Interface

Field	What it does	Default
Channel R / G / B / A	Which channels are affected	All on
Fill Color	Color used by Fill Selected	White (1,1,1,1)
Blur Iterations	Smoothing pass count	1
Fill Selected	Sets the selected meshes’ vertex colors to Fill Color in the active channels
Blur Vertex Colors	Iteratively averages neighbor vertex colors
Export to JSON	Writes vertex color data per mesh to JSON

Workflow

1. Select meshes in the level
2. Toggle which channels to affect (R/G/B/A)
3. Pick a fill color (or use blur for smoothing existing colors)
4. Click Fill Selected or Blur Vertex Colors
5. Optional: Export to JSON for downstream tooling

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Tab 3 — Tri-Planar

Generate a tri-planar projection material function.

Interface

Field	What it does	Default
Texture Scale	UV scale factor in the generated function	1.0
Blend Sharpness	How sharp the tri-planar blend is at axis transitions	4.0
Tri-Planar Output Path	Folder for the generated material function	/Game/EQLabs/Materials
Generate Tri-Planar MF	Builds a UMaterialFunction with the tri-planar setup

Workflow

1. Set the texture scale to match your project’s standard
2. Tune blend sharpness (higher = sharper transitions; 4 is a good default)
3. Click Generate Tri-Planar MF
4. Use the function in your master material to enable tri-planar projection

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Settings reference

Splat Map tab

Field	Default
Layer Count	4
Resolution	1024
Output Path	/Game/EQLabs/SplatMaps

Vertex Color tab

Field	Default
Fill Color	White (1,1,1,1)
Blur Iterations	1
Channels R/G/B/A	All on

Tri-Planar tab

Field	Default
Texture Scale	1.0
Blend Sharpness	4.0
Output Path	/Game/EQLabs/Materials

Settings are persisted to [Project]/Saved/EQLabs/Settings/LayeredTexturePaintSuite.json.

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Output

• Splat tab — UTexture2D (the splat map) + UMaterialFunction (the layer-blend function)
• Vertex Color tab — modifies vertex colors on selected meshes (undoable). Optionally exports JSON to disk.
• Tri-Planar tab — UMaterialFunction (tri-planar projection)

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Tips & gotchas

• Splat-map Layer Count is capped at 4 — only RGBA channels are supported. For more layers, chain multiple splat maps.
• Vertex Color blur is mesh-topology-dependent — meshes with poor topology get uneven blur results
• Tri-planar blend sharpness too low gives mushy transitions — 4–8 is typical; below 2 looks washed out
• Display name is “Texture Paint Suite” — internal class name and tool ID still LayeredTexturePaintSuite for registration continuity
• Vertex color edits are undoable — wrapped in ScopedTransaction. Ctrl+Z reverses.

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Related tools

• Vertex Color Viewer — read-side audit complementing the Vertex Color tab here
• Vertex Color Painter — interactive viewport painting (the proper authoring tool)
• Smart Mask & Texture Processor — generate masks that feed splat maps

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