Half-Life-prepared-original-textures/gearbox/sprites/spike_trail.spr/spike_trail.mat

{
"for" "#sprites/spike_trail(frame:00).spr"
"basecolor_map" "Frame 0.png"
}

{
"for" "#sprites/spike_trail(frame:01).spr"
"basecolor_map" "Frame 1.png"
}

{
"for" "#sprites/spike_trail(frame:02).spr"
"basecolor_map" "Frame 2.png"
}

{
"for" "#sprites/spike_trail(frame:03).spr"
"basecolor_map" "Frame 3.png"
}