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1 /* Fragment shader */
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2
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3 uniform float width;
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4 uniform float height;
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5
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6 uniform float time;
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7
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8 varying float zpos;
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9
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10 uniform sampler2D texture0;
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11
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12 vec4 sampleEffect(float x, float y)
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13 {
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14 float v = (gl_FragCoord.x+x / gl_FragCoord.y+y) * cos(zpos) * sin(zpos);
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15 v += (gl_FragCoord.y+y / gl_FragCoord.x+x) * tan(zpos) * atan(zpos);
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16 v -= (gl_FragCoord.y+y * gl_FragCoord.x+x) * cos(zpos) * tan(zpos);
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17
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18 float v2 = (0.5*zpos+gl_FragCoord.x+x) + (0.4*zpos+gl_FragCoord.y+y);
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19 v2 -= (gl_FragCoord.y+y / gl_FragCoord.x+x) * tan(zpos) * atan(zpos);
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20 v2 += (gl_FragCoord.y+y * gl_FragCoord.x+x) * cos(zpos) * tan(zpos);
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21
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22 vec4 color = vec4(v+v2*0.1-zpos*10.0-zpos,v*v2*0.15-zpos,v2-zpos*0.1,0.02);
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23
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24 return color;
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25 }
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26
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27 void main()
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28 {
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29
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30 vec4 outcolor = (sampleEffect(0.0,0.0) + sampleEffect(1.0,0.0) + sampleEffect(-1.0,0.0) - sampleEffect(0.0,-1.0) + sampleEffect(0.0,1.0))*vec4(1.0,0.5,0.3,0.001);
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31
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32 vec4 finaleffu = outcolor*vec4(-1.0*0.2,1.0*0.4,-1.0*0.4+cos(time*0.000001)*0.3,1.0)+outcolor*0.5-0.4*cos(gl_FragCoord.x*(0.005+atan(time*0.05*gl_FragCoord.x))+gl_FragCoord.y*(0.1+atan(time*0.01)));
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33
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34 vec4 texcolor = texture2D(texture0, vec2((gl_FragCoord.x/width)+sin(time*0.01)*0.01, (gl_FragCoord.y/height)+cos(time*0.005)*0.01));
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35
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36 outcolor = vec4(texcolor.r,finaleffu.r/texcolor.r*0.2,finaleffu.r-texcolor.r*0.1,finaleffu.a*(sin(time*0.000007)*texcolor.r*0.2));
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37
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38 // outcolor.b *= texcolor.g*0.3;
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39
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40 float redv = sin(time*0.00003)*0.98;
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41
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42 float timefade = time*0.000005;
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43
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44 gl_FragColor = vec4(outcolor.r,outcolor.r*(0.2+redv),outcolor.r*(0.2+redv),outcolor.a*redv*timefade);
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45
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46 }
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47
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