webgl2

media/glsl_effect/6balls.glsl

@@ -1,67 +1,69 @@
-#ifdef GL_ES
-precision mediump float;
-#endif
-
-uniform vec2 resolution;
-uniform float time;
-uniform float param0;
-uniform sampler2D texture0;
-
-#define t time
-#define r resolution
-#define c gl_FragCoord.xy
-#define v vec2( 0., 1. )
-
-float f( vec3 p )
-{
-  float tt = t;
-  p.xy = p.xy*mat2( cos(t), -sin(t), sin(t), cos(t) );
-  tt = sin( t );
-  p.zx = p.zx*mat2( cos(tt), -sin(tt), sin(tt), cos(tt) );
-  tt = 2.*time;
-  p.yz = p.yz*mat2( cos(tt), -sin(tt), sin(tt), cos(tt) );
-  float r = .1+param0*.4;
-  float k = .3+param0*.1;
-  float d = length( p+v.yxx*k )-r;
-  d = min( d, length( p-v.yxx*k )-r);
-  d = min( d, length( p+v.xyx*k )-r);
-  d = min( d, length( p-v.xyx*k )-r);
-  d = min( d, length( p+v.xxy*k )-r);
-  d = min( d, length( p-v.xxy*k )-r);
-  return d;
-}
-
-vec3 n( vec3 p )
-{
-	vec2 d = v*.01;
-	return normalize( vec3( f( p+d.yxx )-f( p-d.yxx ), f( p+d.xyx )-f( p-d.xyx ), f( p+d.xxy )-f( p-d.xxy ) ) );
-}
-
-void main()
-{
-  vec2 uv = c/r;
-	vec2 p = (c*2.-r)/r.x;
-  vec3 ray = normalize( vec3( p.x, p.y, -1. ) );
-
-  float minL = 1E-3;
-  float maxL = 1E4;
-  float rL = 0.;
-  float rD = minL*2.;
-  vec3 rP = v.xxy;
-  for( int i=0; i<16; i++ )
-  {
-    if( abs(rD)<minL || maxL<rL )break;
-    rD = f( rP );
-    rL += rD;
-    rP = v.xxy+ray*rL;
-  }
-
-  vec4 col = v.xxxx;
-  if( rD < 1E-2 )
-  {
-    vec2 texp = vec2( .5+n(rP).xy/r*min( r.x, r.y )*.5 );
-    col.xyz = texture2D( texture0, vec2( texp.x, 1.-texp.y ) ).xyz * ( .1/rL*n(rP).z+.9 );
-    col.w = 1.;
-  }
-  gl_FragColor = col;
-}
+#version 300 es
+#ifdef GL_ES
+precision mediump float;
+#endif
+
+out vec4 color;
+uniform vec2 resolution;
+uniform float time;
+uniform float param0;
+uniform sampler2D texture0;
+
+#define t time
+#define r resolution
+#define c gl_FragCoord.xy
+#define v vec2( 0., 1. )
+
+float f( vec3 p )
+{
+  float tt = t;
+  p.xy = p.xy*mat2( cos(t), -sin(t), sin(t), cos(t) );
+  tt = sin( t );
+  p.zx = p.zx*mat2( cos(tt), -sin(tt), sin(tt), cos(tt) );
+  tt = 2.*time;
+  p.yz = p.yz*mat2( cos(tt), -sin(tt), sin(tt), cos(tt) );
+  float r = .1+param0*.4;
+  float k = .3+param0*.1;
+  float d = length( p+v.yxx*k )-r;
+  d = min( d, length( p-v.yxx*k )-r);
+  d = min( d, length( p+v.xyx*k )-r);
+  d = min( d, length( p-v.xyx*k )-r);
+  d = min( d, length( p+v.xxy*k )-r);
+  d = min( d, length( p-v.xxy*k )-r);
+  return d;
+}
+
+vec3 n( vec3 p )
+{
+	vec2 d = v*.01;
+	return normalize( vec3( f( p+d.yxx )-f( p-d.yxx ), f( p+d.xyx )-f( p-d.xyx ), f( p+d.xxy )-f( p-d.xxy ) ) );
+}
+
+void main()
+{
+  vec2 uv = c/r;
+	vec2 p = (c*2.-r)/r.x;
+  vec3 ray = normalize( vec3( p.x, p.y, -1. ) );
+
+  float minL = 1E-3;
+  float maxL = 1E4;
+  float rL = 0.;
+  float rD = minL*2.;
+  vec3 rP = v.xxy;
+  for( int i=0; i<16; i++ )
+  {
+    if( abs(rD)<minL || maxL<rL )break;
+    rD = f( rP );
+    rL += rD;
+    rP = v.xxy+ray*rL;
+  }
+
+  vec4 col = v.xxxx;
+  if( rD < 1E-2 )
+  {
+    vec2 texp = vec2( .5+n(rP).xy/r*min( r.x, r.y )*.5 );
+    col.xyz = texture( texture0, vec2( texp.x, 1.-texp.y ) ).xyz * ( .1/rL*n(rP).z+.9 );
+    col.w = 1.;
+  }
+  color = col;
+}

media/glsl_effect/ascii.glsl

@@ -1,9 +1,11 @@
+#version 300 es
 // referenced the method of bitmap of iq : https://www.shadertoy.com/view/4dfXWj
 
 #ifdef GL_ES
 precision mediump float;
 #endif
 
+out vec4 color;
 uniform float time;
 uniform vec2 resolution;
 uniform sampler2D texture0;
@@ -24,7 +26,7 @@ void main()
 {
     vec2 uv = vec2(floor(gl_FragCoord.x/8./zoom)*8.*zoom,floor(gl_FragCoord.y/12./zoom)*12.*zoom)/r;
     ivec2 pos = ivec2(mod(gl_FragCoord.x/zoom,8.),mod(gl_FragCoord.y/zoom,12.));
-    vec4 tex = texture2D(texture0,vec2(uv.x,1.-uv.y));
+    vec4 tex = texture(texture0,vec2(uv.x,1.-uv.y));
     float cha = 0.;
 
     {
@@ -152,5 +154,5 @@ void main()
 	}
 
     vec3 col = vec3(1.);
-    gl_FragColor = vec4(cha*col,1.);
+    color = vec4(cha*col,1.);
 }

media/glsl_effect/blendAlpha.glsl

@@ -1,7 +1,9 @@
+#version 300 es
 #ifdef GL_ES
 precision mediump float;
 #endif
 
+out vec4 color;
 uniform float time;
 uniform vec2 resolution;
 uniform float param0;
@@ -17,8 +19,8 @@ void main()
   vec2 uv = c/r;
   float p = mod( param0, 2. );
 
-  vec4 t0 = texture2D( texture0, vec2( uv.x, 1.-uv.y ) );
-  vec4 t1 = texture2D( texture1, vec2( uv.x, 1.-uv.y ) );
+  vec4 t0 = texture( texture0, vec2( uv.x, 1.-uv.y ) );
+  vec4 t1 = texture( texture1, vec2( uv.x, 1.-uv.y ) );
 
-  gl_FragColor = mix(t0, t1, p);
+  color = mix(t0, t1, p);
 }

media/glsl_effect/brightnessToColor.glsl

@@ -1,7 +1,9 @@
+#version 300 es
 #ifdef GL_ES
 precision mediump float;
 #endif
 
+out vec4 color;
 uniform float time;
 uniform vec2 resolution;
 uniform sampler2D texture0;
@@ -18,9 +20,9 @@ float gray(vec3 _i)
 void main()
 {
     vec2 uv = c/r;
-    vec4 tex = texture2D( texture0, vec2( uv.x, 1.-uv.y ) );
+    vec4 tex = texture( texture0, vec2( uv.x, 1.-uv.y ) );
 
     float g = gray( tex.xyz )*6.;
 
-    gl_FragColor = vec4( sin( g )*.5+.5, sin( g+4. )*.5+.5, sin( g+2. )*.5+.5, 1. );
+    color = vec4( sin( g )*.5+.5, sin( g+4. )*.5+.5, sin( g+2. )*.5+.5, 1. );
 }

media/glsl_effect/delta.glsl

@@ -1,7 +1,9 @@
+#version 300 es
 #ifdef GL_ES
 precision mediump float;
 #endif
 
+out vec4 color;
 uniform vec2 resolution;
 uniform sampler2D texture0;
 
@@ -13,9 +15,9 @@ uniform sampler2D texture0;
 void main()
 {
   vec2 uv = c/r;
-  vec3 l = texture2D( texture0, vec2( uv.x-DELTA, 1.-uv.y ) ).xyz;
-  vec3 r = texture2D( texture0, vec2( uv.x+DELTA, 1.-uv.y ) ).xyz;
-  vec3 u = texture2D( texture0, vec2( uv.x, 1.-uv.y+DELTA ) ).xyz;
-  vec3 d = texture2D( texture0, vec2( uv.x, 1.-uv.y-DELTA ) ).xyz;
-  gl_FragColor = vec4( vec3( abs( l-r ) + abs( u-d ) ), 1. );
+  vec3 l = texture( texture0, vec2( uv.x-DELTA, 1.-uv.y ) ).xyz;
+  vec3 r = texture( texture0, vec2( uv.x+DELTA, 1.-uv.y ) ).xyz;
+  vec3 u = texture( texture0, vec2( uv.x, 1.-uv.y+DELTA ) ).xyz;
+  vec3 d = texture( texture0, vec2( uv.x, 1.-uv.y-DELTA ) ).xyz;
+  color = vec4( vec3( abs( l-r ) + abs( u-d ) ), 1. );
 }

media/glsl_effect/dots.glsl

@@ -1,22 +1,24 @@
-#ifdef GL_ES
-precision mediump float;
-#endif
-
-uniform vec2 resolution;
-uniform sampler2D texture0;
-
-#define r resolution
-#define c gl_FragCoord.xy
-
-float gray( vec3 _i )
-{
-  return (_i.x+_i.y+_i.z)/3.;
-}
-
-void main()
-{
-  vec2 uv = floor( c/6. ) * 6./r + vec2( 3. )/r;
-  vec2 pos = mod( c, 6. );
-  vec4 tex = texture2D( texture0, vec2( uv.x, 1.-uv.y ) );
-  gl_FragColor = vec4( clamp( vec3( gray( tex.xyz )*3. - length( pos-vec2(3.) )*1. ), 0., 1. )*tex.xyz, 1. );
-}
+#version 300 es
+#ifdef GL_ES
+precision mediump float;
+#endif
+
+out vec4 color;
+uniform vec2 resolution;
+uniform sampler2D texture0;
+
+#define r resolution
+#define c gl_FragCoord.xy
+
+float gray( vec3 _i )
+{
+  return (_i.x+_i.y+_i.z)/3.;
+}
+
+void main()
+{
+  vec2 uv = floor( c/6. ) * 6./r + vec2( 3. )/r;
+  vec2 pos = mod( c, 6. );
+  vec4 tex = texture( texture0, vec2( uv.x, 1.-uv.y ) );
+  color = vec4( clamp( vec3( gray( tex.xyz )*3. - length( pos-vec2(3.) )*1. ), 0., 1. )*tex.xyz, 1. );
+}

media/glsl_effect/fishRGB.glsl

@@ -1,40 +1,42 @@
-#ifdef GL_ES
-precision mediump float;
-#endif
-
-uniform vec2 resolution;
-uniform sampler2D texture0;
-uniform float param0;
-
-#define PI 3.1415926
-
-#define r resolution
-#define c gl_FragCoord.xy
-#define v vec2(0.,1.)
-
-vec3 barrel( float _amp, vec2 _uv )
-{
-	vec2 uv = _uv;
-	float corn = length( v.yy*.5 );
-	float amp = min( _amp*3., PI*corn );
-	float zoom = corn/(tan(corn*amp)+corn);
-	vec2 p = clamp( (uv+normalize(uv-.5)*tan(length(uv-.5)*amp))*zoom + .5*(1.-zoom), 0., 1. );
-	return texture2D( texture0, vec2( p.x, 1.-p.y ) ).xyz;
-}
-
-void main()
-{
-	vec2 uv = c/r;
-	vec3 col = v.xxx;
-	float amp = clamp( param0, 0., 1. );
-	col.x += barrel( amp, uv ).x*.4;
-	col.x += barrel( amp*1.005, uv ).x*.4;
-	col.x += barrel( amp*1.01, uv ).x*.4;
-	col.y += barrel( amp*1.03, uv ).y*.4;
-	col.y += barrel( amp*1.035, uv ).y*.4;
-	col.y += barrel( amp*1.04, uv ).y*.4;
-	col.z += barrel( amp*1.06, uv ).z*.4;
-	col.z += barrel( amp*1.065, uv ).z*.4;
-	col.z += barrel( amp*1.07, uv ).z*.4;
-	gl_FragColor = vec4( col, 1. );
-}
+#version 300 es
+#ifdef GL_ES
+precision mediump float;
+#endif
+
+out vec4 color;
+uniform vec2 resolution;
+uniform sampler2D texture0;
+uniform float param0;
+
+#define PI 3.1415926
+
+#define r resolution
+#define c gl_FragCoord.xy
+#define v vec2(0.,1.)
+
+vec3 barrel( float _amp, vec2 _uv )
+{
+	vec2 uv = _uv;
+	float corn = length( v.yy*.5 );
+	float amp = min( _amp*3., PI*corn );
+	float zoom = corn/(tan(corn*amp)+corn);
+	vec2 p = clamp( (uv+normalize(uv-.5)*tan(length(uv-.5)*amp))*zoom + .5*(1.-zoom), 0., 1. );
+	return texture( texture0, vec2( p.x, 1.-p.y ) ).xyz;
+}
+
+void main()
+{
+	vec2 uv = c/r;
+	vec3 col = v.xxx;
+	float amp = clamp( param0, 0., 1. );
+	col.x += barrel( amp, uv ).x*.4;
+	col.x += barrel( amp*1.005, uv ).x*.4;
+	col.x += barrel( amp*1.01, uv ).x*.4;
+	col.y += barrel( amp*1.03, uv ).y*.4;
+	col.y += barrel( amp*1.035, uv ).y*.4;
+	col.y += barrel( amp*1.04, uv ).y*.4;
+	col.z += barrel( amp*1.06, uv ).z*.4;
+	col.z += barrel( amp*1.065, uv ).z*.4;
+	col.z += barrel( amp*1.07, uv ).z*.4;
+	color = vec4( col, 1. );
+}

media/glsl_effect/four.glsl

@@ -1,7 +1,9 @@
+#version 300 es
 #ifdef GL_ES
 precision mediump float;
 #endif
 
+out vec4 color;
 uniform float time;
 uniform vec2 resolution;
 uniform float param0;
@@ -22,20 +24,20 @@ void main()
 
   if( p < 1. )
   {
-    col = texture2D( texture0, vec2( uv.x, 1.-uv.y ) );
+    col = texture( texture0, vec2( uv.x, 1.-uv.y ) );
   }
   else if( p < 2. )
   {
-    col = texture2D( texture1, vec2( uv.x, 1.-uv.y ) );
+    col = texture( texture1, vec2( uv.x, 1.-uv.y ) );
   }
   else if( p < 3. )
   {
-    col = texture2D( texture2, vec2( uv.x, 1.-uv.y ) );
+    col = texture( texture2, vec2( uv.x, 1.-uv.y ) );
   }
   else
   {
-    col = texture2D( texture3, vec2( uv.x, 1.-uv.y ) );
+    col = texture( texture3, vec2( uv.x, 1.-uv.y ) );
   }
 
-  gl_FragColor = col;
+  color = col;
 }