Texturing & materials · Intermediate
Specular map
A texture that sets how strongly each spot reflects light as a highlight
What is a specular map?
A specular map is a texture that sets how strongly, and sometimes in what color, each part of a surface reflects light as a shiny highlight. It belongs to the specular workflow, where it works alongside a glossiness map. Bright areas give strong reflections and dark areas give faint ones.
Think of it like this
It is like a dimmer switch for shine, set separately for every spot on the surface: polished parts turned up, dusty parts turned down.
Where it fits in a 3D project
- Create
- Surface
- Rig
- Animate
- Render
- Export
Surface: Giving the shape its color and material: UVs, textures and shaders.
How a specular map works
- 01Each pixel stores how much light reflects as a highlight, sometimes with a tint.
- 02A paired glossiness map sets how sharp that highlight is.
- 03The renderer combines both with the diffuse color to shade the surface.
Specular map vs roughness map
| Property | Specular map | Roughness map |
|---|---|---|
| Controls | Reflection strength and color | Reflection sharpness |
| Workflow | Specular-glossiness | Metallic-roughness |
| Channels | Often full color | One gray channel |
Specular says how much a surface shines and roughness says how blurry the shine is; most modern engines use roughness plus metallic.
Where a specular map is used
- Older and mobile game engines
- Legacy asset libraries and some scanned materials
- Fine control over tinted reflections
Beginner tip
Most non-metal surfaces reflect a similar, small amount of light. Keep them in a narrow dark-gray range on the specular map and save the bright values for metal.
Terms related to a specular map
- Texturing & materialsRoughness mapA grayscale texture that sets how sharp or blurry reflections look
- Texturing & materialsMetallic mapA black-and-white texture that marks which parts of a surface are metal
- Texturing & materialsDiffuse mapA color texture from older workflows that often includes painted shading
- Lighting & renderingSpecular reflectionMirror-like reflection that creates shiny highlights on a surface
- Texturing & materialsPBR (physically based rendering)Materials and light that follow real-world physics
- Texturing & materialsMaterialThe settings that decide what a 3D surface is made of
Specular map FAQ
Updated October 29, 2026 · Browse all 3D terms