/*{
"CATEGORIES": [
"Audio Visualizer"
],
"CREDIT": "icalvin102 (calvin@icalvin.de)",
"DESCRIPTION": "Generates a radial audiospectrogram from fft-input",
"INPUTS": [
{
"LABEL": "AudioFFT",
"NAME": "audioFFT",
"TYPE": "audioFFT"
},
{
"DEFAULT": 0.001,
"LABEL": "Size",
"MAX": 0.05,
"MIN": 1,
"NAME": "size",
"TYPE": "float"
},
{
"DEFAULT": 0.99,
"LABEL": "Feedback Opacity",
"MAX": 1,
"MIN": 0.7,
"NAME": "feedbackOpacity",
"TYPE": "float"
},
{
"DEFAULT": 0,
"LABEL": "Lowest Frequency",
"MAX": 1,
"MIN": 0,
"NAME": "low",
"TYPE": "float"
},
{
"DEFAULT": 1,
"LABEL": "Heighest Frequency",
"MAX": 1,
"MIN": 0,
"NAME": "high",
"TYPE": "float"
}
],
"ISFVSN": "2",
"PASSES": [
{
"FLOAT": true,
"HEIGHT": "1",
"PERSISTENT": true,
"TARGET": "time",
"WIDTH": "1"
},
{
"FLOAT": true,
"PERSISTENT": true,
"TARGET": "buff"
},
{
}
]
}
*/
void main() {
vec4 inputPixelColor = IMG_THIS_PIXEL(buff);
float t = IMG_PIXEL(time, vec2(0.0,0.0)).r;
if(PASSINDEX == 0){
gl_FragColor = vec4(t+size);
return;
}
if(PASSINDEX == 1){
vec2 dir = vec2(sin(t), cos(t));
vec2 co = (isf_FragNormCoord - vec2(0.5,0.5)) * 2.0;
float radius=length(co);
inputPixelColor *= feedbackOpacity;
if( dot(dir, normalize(co)) >= cos(size) && radius <= 1.0){
inputPixelColor = IMG_NORM_PIXEL(audioFFT, vec2((1.0-radius) * abs(high - low) + low, .5));
}
inputPixelColor.a = 1.0;
}
gl_FragColor = inputPixelColor;
}
