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!!ARBfp1.0

OPTION ARB_precision_hint_fastest;

# Purpose:

# Input Parameters:

# Tex 0: Frame buffer texture

# TexCoord 0: Texel in the frame buffer

# TexCoord 1: Texel in the distortion lookup buffer.

# Env 0: Intensity of the effect.

#	  x: Intensity.

# Env 1: Lookup offset.

#	  x: X offset.

#	  y: Y offset.

#	  z: 0.0

#	  w: 0.0

# Env 2: Distortion size.

#	  x: size.

#	  y: size / 2.

TEMP framebuffer, distortion, finalcolor;

TEMP lookup;

MUL lookup, fragment.texcoord[1], 0.2;

ADD lookup, lookup, program.env[1];

# Make a lookup in the distortion buffer.

TEX distortion, lookup, texture[1], 2D;

TEMP distortedlookup;

MAD distortedlookup, distortion, program.env[2].x, -program.env[2].y;

MOV distortedlookup.zw, {0.0, 0.0, 0.0, 1.0};

ADD lookup, fragment.texcoord[0], distortedlookup;

TEX framebuffer, lookup, texture[0], 2D;

MOV finalcolor, framebuffer;

MOV result.color.rgb, finalcolor;

MOV result.color.a, program.env[0].x;

END