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Slithering textures (liquids)

WATER2.MAT	  		// Trigger texture
CONSTANT
SLITHER
HARMONIC			// Harmonic / linear, see note 1.
1.0 , 1.0			// Speed. (cycles per second)
20 , 20				// Distance of slithering. (Horizontal, vertical)
NO FUCKING LIGHTING
NO ANIMATION YOU CUNT

Note 1:
Harmonic = accelerates and slows down the slithering smoothly.
Linear = direction changes instantly.