There are multiple ways to archive the neon glow effect on roblox:
https://create.roblox.com/store/asset/106873606893974/NeonMethods
Summary:
Neon Material
First method: setting Neon material:
If you treat part color as HSV format, V (Value) influences the glow of material.
So Color3.fromHSV(0,0,1) will glow, but Color3.fromHSV(0,0,0) won’t glow at all. Color (H Hue) or saturation (S) does not influence the glow at all.
Bloom changes the intensity of the neon effect, etc.
Glowing Text/UI
Setting LightInfluence inside SurfaceGui or BillboardGui lets you edit the brightness property, which is basically a glow-neon-like effect.
Glowing Mesh Texture
SpecialMesh allows you to make TEXTURE glow by editing the Vector3 value of the VertexColor property.
If you go above 1, it gives it a slight glow effect, note that SpecialMesh MUST have a texture
Example:
XYZ is represented as RGB so you can control what color dominates in the texture glow or texture as a whole.
SurfaceAppearance Glow (indev)
The EmissiveMask property will allow you to make a mesh glow similar to VertexColor in SpecialMesh.
Glowing Decals and Textures
Setting the Color3 property above 255 makes certain channels glow, so Color3.fromRGB(900,900,900) or manually setting it inside the properties tab achieves this effect:
Credit for this find about decals:
@GamEditoPro
What are some JUNK inputs that exploiters can send? - #14 by GamEditoPro
Glowing Particles
Exactly the same as with GUI
DO not confuse light emission with glow; they are two separate things. Light emission is responsible for how pixels behind particle emitters blend.
