void cast_aa_ray(int x, int y)
{
double color[3],color1[3],color2[3],color3[3],color4[3];
/*Anti-Aliasing by super sampling for each pixel using grid algorithm method
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*/
cast_ray(x+.25f, y+.5f, color1);
cast_ray(x+.5f, y+.75f, color2);
cast_ray(x+.5f, y+.25f, color3);
cast_ray(x+.75f, y+.5f, color4);
/* I am using only 4 grids i.e averaging by 4 per pixel */
color[0] = (color1[0]+color2[0]+color3[0]+color4[0]) / 4;
color[1] = (color1[1]+color2[1]+color3[1]+color4[1]) / 4;
color[2] = (color1[2]+color2[2]+color3[2]+color4[2]) / 4;
if(color[0] > 1)
color[0] = 1;
else if (color[0] < 0)
color[0] = 0;
color[0] *= 255;
if(color[1] > 1)
color[1] = 1;
else if (color[1] < 0)
color[1] = 0;
color[1] *= 255;
if(color[2] > 1)
color[2] = 1;
else if (color[2] < 0)
color[2] = 0;
color[2] *= 255;
plot_pixel_jpeg(x,y,color[0],color[1],color[2]);
}
void plot_pixel(int x,int y,double r,double g,double b)
{
while(r >= 256.0)
{
r -= 256.0;
}
while(g >= 256.0)
{
g -= 256.0;
}
while(b >= 256.0)
{
b -= 256.0;
}
plot_pixel_display(x,y,r,g,b);
if(mode == MODE_JPEG)
plot_pixel_jpeg(x,y,r,g,b);
}
void plot_pixel(int x,int y,unsigned char r,unsigned char g, unsigned char b)
{
plot_pixel_display(x,y,r,g,b);
if(mode == MODE_JPEG)
plot_pixel_jpeg(x,y,r,g,b);
}