89 lines
2.3 KiB
GLSL
89 lines
2.3 KiB
GLSL
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#version 450
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layout(location = 0) in vec2 fragCoord;
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layout(location = 0) out vec4 fragColor;
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uniform mat4 qt_Matrix;
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uniform float qt_Opacity;
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uniform vec3 iResolution; // viewport resolution (in pixels)
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uniform float iTime; // shader playback time (in seconds)
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//来自 https://www.shadertoy.com/view/wdyczG
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#define S(a,b,t) smoothstep(a,b,t)
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mat2 Rot(float a)
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{
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float s = sin(a);
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float c = cos(a);
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return mat2(c, -s, s, c);
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}
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// Created by inigo quilez - iq/2014
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// License Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License.
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vec2 hash( vec2 p )
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{
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p = vec2( dot(p,vec2(2127.1,81.17)), dot(p,vec2(1269.5,283.37)) );
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return fract(sin(p)*43758.5453);
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}
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float noise( in vec2 p )
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{
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vec2 i = floor( p );
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vec2 f = fract( p );
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vec2 u = f*f*(3.0-2.0*f);
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float n = mix( mix( dot( -1.0+2.0*hash( i + vec2(0.0,0.0) ), f - vec2(0.0,0.0) ),
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dot( -1.0+2.0*hash( i + vec2(1.0,0.0) ), f - vec2(1.0,0.0) ), u.x),
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mix( dot( -1.0+2.0*hash( i + vec2(0.0,1.0) ), f - vec2(0.0,1.0) ),
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dot( -1.0+2.0*hash( i + vec2(1.0,1.0) ), f - vec2(1.0,1.0) ), u.x), u.y);
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return 0.5 + 0.5*n;
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}
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void mainImage( out vec4 fragColor, in vec2 fragCoord )
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{
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vec2 uv = fragCoord/iResolution.xy;
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float ratio = iResolution.x / iResolution.y;
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vec2 tuv = uv;
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tuv -= .5;
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// rotate with Noise
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float degree = noise(vec2(iTime*.1, tuv.x*tuv.y));
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tuv.y *= 1./ratio;
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tuv *= Rot(radians((degree-.5)*720.+180.));
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tuv.y *= ratio;
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// Wave warp with sin
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float frequency = 5.;
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float amplitude = 30.;
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float speed = iTime * 2.;
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tuv.x += sin(tuv.y*frequency+speed)/amplitude;
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tuv.y += sin(tuv.x*frequency*1.5+speed)/(amplitude*.5);
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// draw the image
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vec3 colorYellow = vec3(.957, .804, .623);
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vec3 colorDeepBlue = vec3(.192, .384, .933);
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vec3 layer1 = mix(colorYellow, colorDeepBlue, S(-.3, .2, (tuv*Rot(radians(-5.))).x));
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vec3 colorRed = vec3(.910, .510, .8);
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vec3 colorBlue = vec3(0.350, .71, .953);
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vec3 layer2 = mix(colorRed, colorBlue, S(-.3, .2, (tuv*Rot(radians(-5.))).x));
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vec3 finalComp = mix(layer1, layer2, S(.5, -.3, tuv.y));
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vec3 col = finalComp;
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fragColor = vec4(col,1.0) * qt_Opacity;
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}
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void main() {
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mainImage(fragColor, fragCoord);
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}
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