fyr_log

Charred pyre logs for the fire part (Geo.cylinder meshes spawned by p_fire, leaned into a teepee). The vertex stage roughens the radius so the timber reads hand-hewn; the fragment cracks the charcoal crust into alligator-hide plates whose seams glow from within — brightest toward the fire heart (uv.y 0 = tip) and breathing with heat, which the part drives from the music build. Ash dusts the cooled butt ends.