jitter.h

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 */
/*
jitter.h

This file contains jitter point arrays for 2,3,4,8,15,24 and 66 jitters.

The arrays are named j2, j3, etc. Each element in the array has the form,
for example, j8[0].x and j8[0].y

Values are floating point in the range -.5 < x < .5, -.5 < y < .5, and
have a gaussian distribution around the origin.

Use these to do model jittering for scene anti-aliasing and view volume
jittering for depth of field effects. Use in conjunction with the 
accwindow() routine.
*/

typedef struct 
{
        GLfloat x, y;
} jitter_point;

#define MAX_SAMPLES  66


/* 2 jitter points */
jitter_point j2[] =
{
        { 0.246490,  0.249999},
        {-0.246490, -0.249999}
};


/* 3 jitter points */
jitter_point j3[] =
{
        {-0.373411, -0.250550},
        { 0.256263,  0.368119},
        { 0.117148, -0.117570}
};


/* 4 jitter points */
jitter_point j4[] =
{
        {-0.208147,  0.353730},
        { 0.203849, -0.353780},
        {-0.292626, -0.149945},
        { 0.296924,  0.149994}
};


/* 8 jitter points */
jitter_point j8[] =
{
        {-0.334818,  0.435331},
        { 0.286438, -0.393495},
        { 0.459462,  0.141540},
        {-0.414498, -0.192829},
        {-0.183790,  0.082102},
        {-0.079263, -0.317383},
        { 0.102254,  0.299133},
        { 0.164216, -0.054399}
};


/* 15 jitter points */
jitter_point j15[] =
{
        { 0.285561,  0.188437},
        { 0.360176, -0.065688},
        {-0.111751,  0.275019},
        {-0.055918, -0.215197},
        {-0.080231, -0.470965},
        { 0.138721,  0.409168},
        { 0.384120,  0.458500},
        {-0.454968,  0.134088},
        { 0.179271, -0.331196},
        {-0.307049, -0.364927},
        { 0.105354, -0.010099},
        {-0.154180,  0.021794},
        {-0.370135, -0.116425},
        { 0.451636, -0.300013},
        {-0.370610,  0.387504}
};


/* 24 jitter points */
jitter_point j24[] =
{
        { 0.030245,  0.136384},
        { 0.018865, -0.348867},
        {-0.350114, -0.472309},
        { 0.222181,  0.149524},
        {-0.393670, -0.266873},
        { 0.404568,  0.230436},
        { 0.098381,  0.465337},
        { 0.462671,  0.442116},
        { 0.400373, -0.212720},
        {-0.409988,  0.263345},
        {-0.115878, -0.001981},
        { 0.348425, -0.009237},
        {-0.464016,  0.066467},
        {-0.138674, -0.468006},
        { 0.144932, -0.022780},
        {-0.250195,  0.150161},
        {-0.181400, -0.264219},
        { 0.196097, -0.234139},
        {-0.311082, -0.078815},
        { 0.268379,  0.366778},
        {-0.040601,  0.327109},
        {-0.234392,  0.354659},
        {-0.003102, -0.154402},
        { 0.297997, -0.417965}
};


/* 66 jitter points */
jitter_point j66[] =
{
        { 0.266377, -0.218171},
        {-0.170919, -0.429368},
        { 0.047356, -0.387135},
        {-0.430063,  0.363413},
        {-0.221638, -0.313768},
        { 0.124758, -0.197109},
        {-0.400021,  0.482195},
        { 0.247882,  0.152010},
        {-0.286709, -0.470214},
        {-0.426790,  0.004977},
        {-0.361249, -0.104549},
        {-0.040643,  0.123453},
        {-0.189296,  0.438963},
        {-0.453521, -0.299889},
        { 0.408216, -0.457699},
        { 0.328973, -0.101914},
        {-0.055540, -0.477952},
        { 0.194421,  0.453510},
        { 0.404051,  0.224974},
        { 0.310136,  0.419700},
        {-0.021743,  0.403898},
        {-0.466210,  0.248839},
        { 0.341369,  0.081490},
        { 0.124156, -0.016859},
        {-0.461321, -0.176661},
        { 0.013210,  0.234401},
        { 0.174258, -0.311854},
        { 0.294061,  0.263364},
        {-0.114836,  0.328189},
        { 0.041206, -0.106205},
        { 0.079227,  0.345021},
        {-0.109319, -0.242380},
        { 0.425005, -0.332397},
        { 0.009146,  0.015098},
        {-0.339084, -0.355707},
        {-0.224596, -0.189548},
        { 0.083475,  0.117028},
        { 0.295962, -0.334699},
        { 0.452998,  0.025397},
        { 0.206511, -0.104668},
        { 0.447544, -0.096004},
        {-0.108006, -0.002471},
        {-0.380810,  0.130036},
        {-0.242440,  0.186934},
        {-0.200363,  0.070863},
        {-0.344844, -0.230814},
        { 0.408660,  0.345826},
        {-0.233016,  0.305203},
        { 0.158475, -0.430762},
        { 0.486972,  0.139163},
        {-0.301610,  0.009319},
        { 0.282245, -0.458671},
        { 0.482046,  0.443890},
        {-0.121527,  0.210223},
        {-0.477606, -0.424878},
        {-0.083941, -0.121440},
        {-0.345773,  0.253779},
        { 0.234646,  0.034549},
        { 0.394102, -0.210901},
        {-0.312571,  0.397656},
        { 0.200906,  0.333293},
        { 0.018703, -0.261792},
        {-0.209349, -0.065383},
        { 0.076248,  0.478538},
        {-0.073036, -0.355064},
        { 0.145087,  0.221726}
};

---