Hey —
Five procedural glass materials for Blender, free: clear, frosted, seeded, and two tints — amber and green.
They're one node group with five sets of numbers in it. Tint, roughness, IOR, frost amount, frost unevenness, smudge, scale and bump all sit right on the group node, so if Frosted is heavier than you wanted, you turn it down. You're not stuck with somebody else's finished decision.
Seeded means bubbled, uneven relief in the surface — hand-blown and cathedral glass. Smudge is a separate slider, and it's flat. Two different jobs, two different controls, each named for what it actually does.
No image textures, no scans, nothing that phones home. The whole pack is 758 KB, there's no texture folder to keep beside the file, and no missing-file surfaces when you move the .blend.
Two things to know before you download it, because I'd rather you know now than after.
It needs Cycles. That's not a preference. It needs Blender 5.2 or newer. The file won't open in any 4.x release, including 4.2 LTS. That's a Blender file-format change, not something the pack can work around.
The first gallery render came out looking like ceramic. Not slightly — properly wrong, like I'd shaded a mug. I'd shot a wine glass against a clean, plain backdrop, the way you'd light anything you want to show off.
If your glass keeps coming out looking like plastic, it's probably not the shader. Put something with hard edges behind it.
One more honest limit, since you'll find it eventually: the tint sits on base color with no volume absorption, so the color doesn't deepen through a thick section the way real glass does. On a windowpane you'll never notice. On a bottle or a thick-based tumbler you will. It's in the README too.
It's free and you can use it commercially. The only thing asked is an email address, and you can leave any time.
This week's thing to go take: https://startingframe.com/tools/procedural-glass-materials-blender/
Ship anyway.
— Brian
Starting Frame · startingframe.com
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