Tunnel Source by bca of Karva /code/effects/tunnel/bca_tnl.zip	19 Jan 1998 (catalog date) 19,956 bytes
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A texture mapped tunnel effect. Has holes in the tunnel. No useful comments in the source. One nifty (old!) idea of taking advantage of mirrors in the lookup table. FYI - vasen=left, oikea=right, yl„=upper, ala=lower.