synesthesia_equirectangular.synScene

gistfile1.txt

/*{
   "CONTROLS" : [
       {
           "DEFAULT" : 0.5,
           "DESCRIPTION" : "Smoothly switch between normal perspective and Equirectangular coordinates. Best results with this slider at 0% or 100%.",
           "IS_META" : false,
           "MAX" : 1,
           "MIN" : 0,
           "NAME" : "perspective",
           "PARAMS" : 0.0099999997764825821,
           "TYPE" : "slider smooth",
           "UI_GROUP" : "camera"
       },
       {
           "DEFAULT" : 0,
           "DESCRIPTION" : "Just move the X-axis to spin about your main axis, or move the Y-axis to tilt forwards or backwards.",
           "IS_META" : false,
           "MAX" : 1,
           "MIN" : -1,
           "NAME" : "lookXY",
           "PARAMS" : 0.0099999997764825821,
           "TYPE" : "xy smooth",
           "UI_GROUP" : "camera"
       }
   ],
   "CREDIT" : "shadyheadstash",
   "DESCRIPTION" : "Equirectangular projection as a filter.",
   "HEIGHT" : 2160,
   "IMAGES" : [],
   "IMAGE_PATH" : "equirec.png",
   "TITLE" : "Equirec",
   "WIDTH" : 3840
}
*/
//vec4 iMouse = vec4(MouseXY*RENDERSIZE, MouseClick, MouseClick);

#define 	twpi  	6.283185307179586  	// two pi, 2*pi
#define 	pi   	3.141592653589793 	// pi

#define time TIME

vec4 renderMainImage() {
	vec4 fragColor = vec4(0.0);
	vec2 fragCoord = _xy;

    vec2 v = (_xy.xy / RENDERSIZE.xy) + RENDERSIZE.y;
    v.y -= 0.5;
    float th =  v.y * pi, ph = v.x * twpi;
    vec3 sp = vec3( sin(ph) * cos(th), sin(th), cos(ph) * cos(th) );
    vec3 pos = vec3( pi, 0, 0);
    sp = mix(sp, normalize(vec3(_uvc, 1.0)), perspective);
    sp.yz = _rotate(sp.yz, lookXY.y*PI);
    sp.xy = _rotate(sp.xy, lookXY.x*PI);

    if (_exists(syn_UserImage)) {
        fragColor = texture(syn_UserImage, (vec2(dot(pos, sp.zxy), dot(pos.yzx, sp.zxy))));
    }
    return fragColor;
}

vec4 renderMain(){
	if(PASSINDEX == 0){
		return renderMainImage();
	}
}