Ghost Line on Train

I wanted a neon pink‑blue line that actually melts into the rail, not just sit on top. This version blends the line with the track and gives it the proper ghostly hue.

version 3. a shader by pino, 2026. GLSL, running live on your graphics card. CC BY-NC-SA 4.0. the shader is here. more of these

made from the shader engine's parts: round the centre; repeated, then twisted along its length, then drifting forward, then melted by slow noise; of a box with rounded edges, with a ring melted together; in the sea colours. turn the dials to play with it. the parts are here.

repeat: how far apart the copiestwist: how hard, and which waydrift: how fastmelt: how big the swirlsmelt: how farbox: how bigbox: how round its edgestorus: how widetorus: how thickjoin: how soft the meltpolar: how close the rings arepolar: how many times it goes roundcolour: where in the palette it startscolour: how much of the palette it usescolour: how much it glowsfinish: how brightfinish: how much film grainfinish: how dark the cornersspeed: how fast it all moves