Idea Bonzo Shader Royale

generate_texture_from_image.sh

# Create a texture that concat profile
mogrify -resize 512x512! *.png ; montage -mode concatenate -tile x1 *.png ../tex1.jpg

shader.glsl

#version 410 core

uniform float fGlobalTime; // in seconds
uniform vec2 v2Resolution; // viewport resolution (in pixels)

uniform sampler1D texFFT; // towards 0.0 is bass / lower freq, towards 1.0 is higher / treble freq
uniform sampler1D texFFTSmoothed; // this one has longer falloff and less harsh transients
uniform sampler1D texFFTIntegrated; // this is continually increasing
uniform sampler2D texChecker;
uniform sampler2D texNoise;
uniform sampler2D texTex1;
uniform sampler2D texTex2;
uniform sampler2D texTex3;
uniform sampler2D texTex4;

layout(location = 0) out vec4 out_color; // out_color must be written in order to see anything

#define nbParticipant 12.
#define myId 6.
#define anim 1.
float box(vec2 uv,vec2 a){
  vec2 b=abs(uv)-a;
  return length(max(b,0.)) + min(max(b.x,b.y),0.);
  }
  
  vec3 p(float t) { return 0.5+0.5*cos(2.*3.141592*(1.*t+vec3(.0,.33,.67)));}
void main(void)
{
  vec2 uv = vec2(gl_FragCoord.x / v2Resolution.x, gl_FragCoord.y / v2Resolution.y);
  uv -= 0.5;
  uv /= vec2(v2Resolution.y / v2Resolution.x, 1);
  uv.x += sin(uv.y*3.+fGlobalTime)*.05;
  vec2 texC =(uv+vec2(.0+.5 +myId+ (floor(fGlobalTime)+pow(fract(fGlobalTime),20.4))*anim,.5))/vec2(nbParticipant,1.);
  texC *= vec2(1.,-1.);
  vec3 col = texture(texTex3,texC).rgb;
  float sq = 1.-box(uv,vec2(.49));
  sq = step(1.,sq);

  out_color = vec4(sqrt(mix(vec3(.0),col,sq)),1.);
}