Add new shaders

popcornmix · May 27, 2015 · 02b11c0 · 02b11c0
1 parent 2e86827
commit 02b11c0
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Showing 26 changed files with 1,213 additions and 8 deletions.
diff --git a/screensaver.shadertoy/resources/ball.frag.glsl b/screensaver.shadertoy/resources/ball.frag.glsl
@@ -0,0 +1,36 @@
+const float PI=3.1415926535897932384626433832795;
+
+// by maq/floppy
+const float R=0.2;      // to play
+void mainImage( out vec4 fragColor, in vec2 fragCoord )
+{
+	vec3 col;
+	vec2 uv = -0.5+fragCoord.xy / iResolution.xy;
+	uv.y*=0.66; // hack to get ar nice on 16:10
+	vec2 p = uv;
+	float d=sqrt(dot(p,p));
+	float fac,fac2;
+	if(d<R)
+	{
+		uv.x=p.x/(R+sqrt(R-d));
+		uv.y=p.y/(R+sqrt(R-d));
+		fac = 0.005;
+		fac2 = 5.0;
+	}
+	else
+	{
+		uv.x=p.x/(d*d);
+		uv.y=p.y/(d*d);
+		fac = 0.02;
+		fac2 = 25.0;
+	}
+
+	uv.x=uv.x-iMouse.x*fac+fac*500.0*sin(0.2*iGlobalTime);
+	uv.y=uv.y-iMouse.y*fac+fac*500.0*sin(0.4*iGlobalTime);
+	col = texture2D(iChannel0, uv/fac2).xyz;
+	col = col*exp(-3.0*(d-R)); // some lighting
+	col = col*(1.1-exp(-8.0*(abs(d-R)))); // and shading
+
+
+	fragColor = vec4(col,1.0);
+}
diff --git a/screensaver.shadertoy/resources/bleepyblocks.frag.glsl b/screensaver.shadertoy/resources/bleepyblocks.frag.glsl
@@ -0,0 +1,21 @@
+// See: https://www.shadertoy.com/view/MsXSzM
+
+#define TIMESCALE 0.25 
+#define TILES 8
+#define COLOR 0.7, 1.6, 2.8
+
+void mainImage( out vec4 fragColor, in vec2 fragCoord )
+{
+	vec2 uv = fragCoord.xy / iResolution.xy;
+	uv.x *= iResolution.x / iResolution.y;
+
+	vec4 noise = texture2D(iChannel0, floor(uv * float(TILES)) / float(TILES));
+	float p = 1.0 - mod(noise.r + noise.g + noise.b + iGlobalTime * float(TIMESCALE), 1.0);
+	p = min(max(p * 3.0 - 1.8, 0.1), 2.0);
+
+	vec2 r = mod(uv * float(TILES), 1.0);
+	r = vec2(pow(r.x - 0.5, 2.0), pow(r.y - 0.5, 2.0));
+	p *= 1.0 - pow(min(1.0, 12.0 * dot(r, r)), 2.0);
+
+	fragColor = vec4(COLOR, 1.0) * p;
+}
diff --git a/screensaver.shadertoy/resources/fastclouds.frag.glsl b/screensaver.shadertoy/resources/fastclouds.frag.glsl
@@ -0,0 +1,146 @@
+// https://www.shadertoy.com/view/XsjSRt
+
+//Flaring by nimitz (twitter: @stormoid)
+
+//change this value (1 to 5) or tweak the settings yourself.
+//the gamma and spot brightness parameters can use negative values
+#define TYPE 4
+
+#if TYPE == 1
+	#define brightness 1.
+	#define ray_brightness 11.
+	#define gamma 5.
+	#define spot_brightness 4.
+	#define ray_density 1.5
+	#define curvature .1
+	#define red   7.
+	#define green 1.3
+	#define blue  1.
+	//1 -> ridged, 2 -> sinfbm, 3 -> pure fbm
+	#define noisetype 2
+	#define sin_freq 50. //for type 2
+#elif TYPE == 2
+	#define brightness 1.5
+	#define ray_brightness 10.
+	#define gamma 8.
+	#define spot_brightness 15.
+	#define ray_density 3.5
+	#define curvature 15.
+	#define red   4.
+	#define green 1.
+	#define blue  .1
+	#define noisetype 1
+	#define sin_freq 13.
+#elif TYPE == 3
+	#define brightness 1.5
+	#define ray_brightness 20.
+	#define gamma 4.
+	#define spot_brightness .95
+	#define ray_density 3.14
+	#define curvature 17.
+	#define red   2.9
+	#define green .7
+	#define blue  3.5
+	#define noisetype 2
+	#define sin_freq 15.
+#elif TYPE == 4
+	#define brightness 3.
+	#define ray_brightness 5.
+	#define gamma 6.
+	#define spot_brightness 1.5
+	#define ray_density 6.
+	#define curvature 90.
+	#define red   1.8
+	#define green 3.
+	#define blue  .5
+	#define noisetype 1
+	#define sin_freq 6.
+	#define YO_DAWG
+#elif TYPE == 5
+	#define brightness 2.
+	#define ray_brightness 5.
+	#define gamma 5.
+	#define spot_brightness 1.7
+	#define ray_density 30.
+	#define curvature 1.
+	#define red   1.
+	#define green 4.0
+	#define blue  4.9
+	#define noisetype 2
+	#define sin_freq 5. //for type 2
+#endif
+
+
+//#define PROCEDURAL_NOISE
+//#define YO_DAWG
+
+
+float hash( float n ){return fract(sin(n)*43758.5453);}
+
+float noise( in vec2 x )
+{
+	#ifdef PROCEDURAL_NOISE
+	x *= 1.75;
+    vec2 p = floor(x);
+    vec2 f = fract(x);
+
+    f = f*f*(3.0-2.0*f);
+
+    float n = p.x + p.y*57.0;
+
+    float res = mix(mix( hash(n+  0.0), hash(n+  1.0),f.x),
+                    mix( hash(n+ 57.0), hash(n+ 58.0),f.x),f.y);
+    return res;
+	#else
+	return texture2D(iChannel0, x*.01).x;
+	#endif
+}
+
+mat2 m2 = mat2( 0.80,  0.60, -0.60,  0.80 );
+float fbm( in vec2 p )
+{	
+	float z=2.;
+	float rz = 0.;
+	p *= 0.25;
+	for (float i= 1.;i < 6.;i++ )
+	{
+		#if noisetype == 1
+		rz+= abs((noise(p)-0.5)*2.)/z;
+		#elif noisetype == 2
+		rz+= (sin(noise(p)*sin_freq)*0.5+0.5) /z;
+		#else
+		rz+= noise(p)/z;
+		#endif
+		z = z*2.;
+		p = p*2.*m2;
+	}
+	return rz;
+}
+
+void mainImage( out vec4 fragColor, in vec2 fragCoord )
+{
+	float t = -iGlobalTime*0.03;
+	vec2 uv = fragCoord.xy / iResolution.xy-0.5;
+	uv.x *= iResolution.x/iResolution.y;
+	uv*= curvature*.05+0.0001;
+
+	float r  = sqrt(dot(uv,uv));
+	float x = dot(normalize(uv), vec2(.5,0.))+t;	
+	float y = dot(normalize(uv), vec2(.0,.5))+t;
+
+	#ifdef YO_DAWG
+	x = fbm(vec2(y*ray_density*0.5,r+x*ray_density*.2));
+	y = fbm(vec2(r+y*ray_density*0.1,x*ray_density*.5));
+	#endif
+
+    float val;
+    val = fbm(vec2(r+y*ray_density,r+x*ray_density-y));
+	val = smoothstep(gamma*.02-.1,ray_brightness+(gamma*0.02-.1)+.001,val);
+	val = sqrt(val);
+
+	vec3 col = val/vec3(red,green,blue);
+	col = clamp(1.-col,0.,1.);
+	col = mix(col,vec3(1.),spot_brightness-r/0.1/curvature*200./brightness);
+
+	fragColor = vec4(col,1.0);
+}
diff --git a/screensaver.shadertoy/resources/flaring.frag.glsl b/screensaver.shadertoy/resources/flaring.frag.glsl
@@ -0,0 +1,146 @@
+// https://www.shadertoy.com/view/XsjSRt
+
+//Flaring by nimitz (twitter: @stormoid)
+
+//change this value (1 to 5) or tweak the settings yourself.
+//the gamma and spot brightness parameters can use negative values
+#define TYPE 4
+
+#if TYPE == 1
+	#define brightness 1.
+	#define ray_brightness 11.
+	#define gamma 5.
+	#define spot_brightness 4.
+	#define ray_density 1.5
+	#define curvature .1
+	#define red   7.
+	#define green 1.3
+	#define blue  1.
+	//1 -> ridged, 2 -> sinfbm, 3 -> pure fbm
+	#define noisetype 2
+	#define sin_freq 50. //for type 2
+#elif TYPE == 2
+	#define brightness 1.5
+	#define ray_brightness 10.
+	#define gamma 8.
+	#define spot_brightness 15.
+	#define ray_density 3.5
+	#define curvature 15.
+	#define red   4.
+	#define green 1.
+	#define blue  .1
+	#define noisetype 1
+	#define sin_freq 13.
+#elif TYPE == 3
+	#define brightness 1.5
+	#define ray_brightness 20.
+	#define gamma 4.
+	#define spot_brightness .95
+	#define ray_density 3.14
+	#define curvature 17.
+	#define red   2.9
+	#define green .7
+	#define blue  3.5
+	#define noisetype 2
+	#define sin_freq 15.
+#elif TYPE == 4
+	#define brightness 3.
+	#define ray_brightness 5.
+	#define gamma 6.
+	#define spot_brightness 1.5
+	#define ray_density 6.
+	#define curvature 90.
+	#define red   1.8
+	#define green 3.
+	#define blue  .5
+	#define noisetype 1
+	#define sin_freq 6.
+	#define YO_DAWG
+#elif TYPE == 5
+	#define brightness 2.
+	#define ray_brightness 5.
+	#define gamma 5.
+	#define spot_brightness 1.7
+	#define ray_density 30.
+	#define curvature 1.
+	#define red   1.
+	#define green 4.0
+	#define blue  4.9
+	#define noisetype 2
+	#define sin_freq 5. //for type 2
+#endif
+
+
+//#define PROCEDURAL_NOISE
+//#define YO_DAWG
+
+
+float hash( float n ){return fract(sin(n)*43758.5453);}
+
+float noise( in vec2 x )
+{
+	#ifdef PROCEDURAL_NOISE
+	x *= 1.75;
+    vec2 p = floor(x);
+    vec2 f = fract(x);
+
+    f = f*f*(3.0-2.0*f);
+
+    float n = p.x + p.y*57.0;
+
+    float res = mix(mix( hash(n+  0.0), hash(n+  1.0),f.x),
+                    mix( hash(n+ 57.0), hash(n+ 58.0),f.x),f.y);
+    return res;
+	#else
+	return texture2D(iChannel0, x*.01).x;
+	#endif
+}
+
+mat2 m2 = mat2( 0.80,  0.60, -0.60,  0.80 );
+float fbm( in vec2 p )
+{	
+	float z=2.;
+	float rz = 0.;
+	p *= 0.25;
+	for (float i= 1.;i < 6.;i++ )
+	{
+		#if noisetype == 1
+		rz+= abs((noise(p)-0.5)*2.)/z;
+		#elif noisetype == 2
+		rz+= (sin(noise(p)*sin_freq)*0.5+0.5) /z;
+		#else
+		rz+= noise(p)/z;
+		#endif
+		z = z*2.;
+		p = p*2.*m2;
+	}
+	return rz;
+}
+
+void mainImage( out vec4 fragColor, in vec2 fragCoord )
+{
+	float t = -iGlobalTime*0.03;
+	vec2 uv = fragCoord.xy / iResolution.xy-0.5;
+	uv.x *= iResolution.x/iResolution.y;
+	uv*= curvature*.05+0.0001;
+
+	float r  = sqrt(dot(uv,uv));
+	float x = dot(normalize(uv), vec2(.5,0.))+t;	
+	float y = dot(normalize(uv), vec2(.0,.5))+t;
+
+	#ifdef YO_DAWG
+	x = fbm(vec2(y*ray_density*0.5,r+x*ray_density*.2));
+	y = fbm(vec2(r+y*ray_density*0.1,x*ray_density*.5));
+	#endif
+
+    float val;
+    val = fbm(vec2(r+y*ray_density,r+x*ray_density-y));
+	val = smoothstep(gamma*.02-.1,ray_brightness+(gamma*0.02-.1)+.001,val);
+	val = sqrt(val);
+
+	vec3 col = val/vec3(red,green,blue);
+	col = clamp(1.-col,0.,1.);
+	col = mix(col,vec3(1.),spot_brightness-r/0.1/curvature*200./brightness);
+
+	fragColor = vec4(col,1.0);
+}
diff --git a/screensaver.shadertoy/resources/juliasm.frag.glsl b/screensaver.shadertoy/resources/juliasm.frag.glsl
@@ -0,0 +1,35 @@
+// See: https://www.shadertoy.com/view/XssXDr
+
+const int max_iterations = 14;
+
+vec2 complex_square( vec2 v ) {
+	return vec2(
+		v.x * v.x - v.y * v.y,
+		v.x * v.y * 2.0
+	);
+}
+
+
+void mainImage( out vec4 fragColor, in vec2 fragCoord )
+{
+	vec2 uv = fragCoord.yx - iResolution.yx * 0.5;
+	uv *= 2.5 / min( iResolution.x, iResolution.y );
+
+	vec2 c = vec2( 0.37+cos(iGlobalTime*1.23462673423)*0.04, sin(iGlobalTime*1.43472384234)*0.10+0.50);
+	vec2 v = uv;
+	float scale = 0.01;
+
+	float smoothcolor = exp(-length(v));
+
+	for ( int i = 0 ; i < max_iterations; i++ ) {
+		v = c + complex_square( v );
+		smoothcolor += exp(-length(v));
+		if ( dot( v, v ) > 4.0 ) {
+			break;
+		}
+	}
+	float r = 0.6+0.4*(sin(smoothcolor*0.1+iGlobalTime*0.63));
+	float g = r * r;
+	float b = r * g;
+	fragColor = vec4(r,g,b,0);
+}