How to Make a Glass Material in UE5
Glass is less a texture than a shading setup: its identity comes from translucency, fresnel reflection and near-zero roughness. In UE5 that means the material settings matter as much as any map you plug in.
Channel by channel
Base color
Nearly black-to-neutral with a faint tint (green for cheap float glass, blue-grey for architectural). In a translucent material the "color" mostly comes from Opacity and tint, not albedo.
Roughness
Very low, 0.0–0.1 — but real glass carries smudges and dust, so a faint fingerprint variation map at 0.05–0.25 sells it far better than a constant 0.
Metallic
0.0 — glass is a dielectric whose strong reflections come from fresnel, not the metallic channel.
Normal
Flat for panes; slight waviness for old windows; strong refraction-driving normals only for privacy/patterned glass.
The hand-building tip that matters
Use the Translucent blend mode with Surface ForwardShading (or Thin Translucent for realistic tinted panes), keep Opacity around 0.1–0.3, and let a Fresnel node boost reflectivity at grazing angles — that fresnel falloff is 90% of what makes glass read as glass.
New to the four channels? Read the PBR basics first.
Or start with a material brief
MaterialForge generates a UE5 material recipe, with seamless textures and derived PBR maps where needed. Preview the result, then apply it through the desktop app. This link prefills your prompt:
Try “glass” in MaterialForgePrompt variations to try
Applying into your editor happens through the free Cosindra desktop app (Windows & macOS).
Want alternatives or a set of different surfaces? Follow the MaterialForge workflow →
Common questions
Why does my glass have no reflections in UE5?
Translucent materials skip specular by default. In the material’s Details panel, set Lighting Mode to Surface ForwardShading to restore real reflections on the translucent surface, then let a Fresnel node scale reflectivity up at grazing angles. Without that falloff glass looks like cellophane — real panes are nearly invisible head-on and mirror-like edge-on.
Should glass use the Translucent or Masked blend mode?
Translucent, with Opacity around 0.1–0.3 — Masked only does fully-on or fully-off pixels, which suits cutouts like chain-link fencing, not see-through panes. For realistically tinted windows, switch the shading model to Thin Translucent, which colors the light passing through instead of merely fading the surface. Save Masked for shattered-glass cards with alpha-tested holes.
How do I make frosted glass in UE5?
Raise roughness into the 0.3–0.6 band on a Translucent material with Surface ForwardShading, which blurs the reflections and — with refraction enabled — the transmitted scene behind the pane. Set the Refraction input to glass’s index of 1.52, and break the frost up with subtle noise in the roughness so it avoids a machine-even look.