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19 lines
583 B
19 lines
583 B
uniform float u_Time;
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uniform vec2 u_Resolution;
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uniform sampler2D u_Tex0;
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varying vec2 v_TexCoord;
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void main(void)
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{
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vec2 halfres = u_Resolution.xy/2.0;
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vec2 cPos = v_TexCoord.xy * u_Resolution;
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cPos.x -= 0.5*halfres.x*sin(u_Time/2.0)+0.3*halfres.x*cos(u_Time)+halfres.x;
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cPos.y -= 0.4*halfres.y*sin(u_Time/5.0)+0.3*halfres.y*cos(u_Time)+halfres.y;
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float cLength = length(cPos);
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vec2 uv = v_TexCoord.xy+ ((cPos/cLength)*sin(cLength/30.0-u_Time*10.0)/25.0)*0.15;
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vec3 col = texture2D(u_Tex0,uv).xyz * 250.0/cLength;
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gl_FragColor = vec4(col,1.0);
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} |