beppe/shaders
1
0
Fork 0
mirror of https://github.com/bvanroll/shaders.git synced 2025-08-28 19:42:49 +00:00
Code Issues Packages Projects Releases Wiki Activity

hmmm

Browse Source
This commit is contained in:
Beppe Vanrolleghem
2024-06-01 14:44:18 +02:00
parent 52d3ca3c61
commit 0004cddea6
11 changed files with 447 additions and 31 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
experiments/holo/holo.frag
View File

@@ -7,47 +7,23 @@ uniform float u_time;
#define PI 3.14159265359
const vec3 uAColor = vec3(.5);
const vec3 uBColor = vec3(.5);
const vec3 uCColor = vec3(1.);
const vec3 uDColor = vec3(.3,.2,.2);
const vec3 uAColor = vec3(.5,.5,.5);
const vec3 uBColor = vec3(.5,.5,.5);
const vec3 uCColor = vec3(1.,1.,1.);
const vec3 uDColor = vec3(.0,.33,.67);
//get colors from http://dev.thi.ng/gradients/
vec3 cosPalette(float t) {
return uAColor + uBColor*cos(6.28318*(uCColor*t+uDColor));
}
float circleSDF(vec2 st) {
return length(st-.5)*2.;
}
float fill(float x, float size) {
return 1.-step(size, x);
}
void main() {
vec2 st = gl_FragCoord.xy/u_resolution;
float col = 0.0;
vec2 l = vec2(.5,.5)-(u_mouse/u_resolution);
l = l*.1;
vec3 color = vec3(0.0,0.0,0.0);
float alpha = 1.0;
float dots = 17.;
float dotsize = .7;
vec2 off = vec2(.1,.1);
float movemod = sin(u_time)/2.+1.;
for (int i = 0; i < 4; i++) {
vec2 off1 = off * vec2(-1,1);
vec2 off2 = off * vec2(1,-1);
vec2 off3 = off * vec2(1,1);
vec2 off4 = off * vec2(-1,-1);
col += fill(circleSDF(fract(st*dots)+off1+l+movemod),dotsize)/4.;
col += fill(circleSDF(fract(st*dots)+off2+l),dotsize)/4.;
col += fill(circleSDF(fract(st*dots)+off3+l),dotsize)/4.;
col += fill(circleSDF(fract(st*dots)+off4+l),dotsize)/4.;
//col += fill(circleSDF(fract(st*dots + l*.9+off)*.3), dotsize);
off += vec2(.1,.1);
}
vec3 color = cosPalette(col);
gl_FragColor = vec4(color, alpha);
}

54
experiments/holo/holo_old.frag Normal file
View File

@@ -0,0 +1,54 @@
#ifdef GL_ES
precision mediump float;
#endif
uniform vec2 u_resolution;
uniform vec2 u_mouse;
uniform float u_time;
#define PI 3.14159265359
const vec3 uAColor = vec3(.5);
const vec3 uBColor = vec3(.5);
const vec3 uCColor = vec3(1.);
const vec3 uDColor = vec3(.3,.2,.2);
//get colors from http://dev.thi.ng/gradients/
vec3 cosPalette(float t) {
return uAColor + uBColor*cos(6.28318*(uCColor*t+uDColor));
}
float circleSDF(vec2 st) {
return length(st-.5)*2.;
}
float fill(float x, float size) {
return 1.-step(size, x);
}
void main() {
vec2 st = gl_FragCoord.xy/u_resolution;
float col = 0.0;
vec2 l = vec2(.5,.5)-(u_mouse/u_resolution);
l = l*.1;
float alpha = 1.0;
float dots = 1.;
float dotsize = .7;
vec2 off = vec2(.1,.1);
float movemod = sin(u_time)/2.+1.;
col += fill(circleSDF(fract(st*dots)+l+movemod),dotsize)/4.;
for (int i = 0; i < 4; i++) {
vec2 off1 = off * vec2(-1,1);
vec2 off2 = off * vec2(1,-1);
vec2 off3 = off * vec2(1,1);
vec2 off4 = off * vec2(-1,-1);
col += fill(circleSDF(fract(st*dots)+off1+l+movemod),dotsize)/4.;
col += fill(circleSDF(fract(st*dots)+off2+l),dotsize)/4.;
col += fill(circleSDF(fract(st*dots)+off3+l),dotsize)/4.;
col += fill(circleSDF(fract(st*dots)+off4+l),dotsize)/4.;
//col += fill(circleSDF(fract(st*dots + l*.9+off)*.3), dotsize);
off += vec2(.1,.1);
}
vec3 color = cosPalette(col);
gl_FragColor = vec4(color, alpha);
}