#include <stdio.h>
#include <math.h>
#include "../inc/shader.h"
#include "../inc/mi_softshade.h"

#define angle 3.14/4.

struct inputstuff{

struct soft_dof si_default;
miScalar range;

};

miBoolean environ_lens(miColor *result, miState *state, struct inputstuff *paras)
{

register miVector dir, origin;
float azi_pos, elev_pos, length;
float cx, cy, cz;

elev_pos = state->raster_y - (state->camera->y_resolution/2.);
elev_pos /= state->camera->y_resolution/2.;
azi_pos = state->raster_x - (state->camera->x_resolution/2.);
azi_pos /= state->camera->x_resolution/2.;

origin.x = 0;
origin.y = 0;
origin.z = 0;
dir.x = sin(azi_pos*3.14)*sin(elev_pos*3.14); /* right is +x */
dir.y = cos(elev_pos*3.14); /* top is up */
dir.z = cos(azi_pos*3.14)*sin(elev_pos*3.14); /* center is +z */

if ((state->raster_x == 250)&&(state->raster_y == 250))


printf("%f %f %f %f %f\n", azi_pos, elev_pos, dir.x, dir.y, dir.z);

cx = state->point.x;
cy = state->point.y;
cz = state->point.z;
state->point.x = 0;
state->point.y = 0;
state->point.z = 0;
mi_trace_refraction(result, state, &dir);
state->point.x = cx;
state->point.y = cy;
state->point.z = cz;
return(miTRUE);

}