37 lines
1.2 KiB
GLSL
37 lines
1.2 KiB
GLSL
// the ultimate refreshment
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void main()
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{
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vec2 uv = TexCoord;
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vec2 bresl = vec2(textureSize(InputTexture,0));
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vec2 sr = vec2(1.,bresl.y/bresl.x);
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vec3 ice = texture(BumpTex,uv*sr*4.).xyz;
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vec2 ofs = (ice.xy-.5)*2.;
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ofs *= pow(length(ofs),.25)*.4*str;
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float dist = distance(uv,vec2(.5))*2.;
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float distfct = clamp(pow(dist,1.2)*.85-(.75+.5*(1.-str)),0.,1.);
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ofs *= distfct;
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vec3 col = texture(InputTexture,uv+ofs).rgb;
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col += pow(max(0.,ice.z),1.45)*.65*str*distfct;
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float str2 = str*(.9+texture(NoiseTex,vec2(timer*.05)).x*.2);
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float ang = timer*.05;
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uv *= sr;
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uv.x += 1.*sr.x;
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vec2 uv2 = vec2(uv.x*cos(ang)-uv.y*sin(ang),uv.y*cos(ang)+uv.x*sin(ang))*1.3;
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float smk = texture(WarpTex,uv2).x;
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uv.y -= 2.*sr.y;
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ang = timer*.03;
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uv2 = vec2(uv.x*cos(ang)-uv.y*sin(ang),uv.y*cos(ang)+uv.x*sin(ang))*1.5;
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smk += texture(WarpTex,uv2).x;
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uv.x -= 3.*sr.x;
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ang = timer*.04;
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uv2 = vec2(uv.x*cos(ang)-uv.y*sin(ang),uv.y*cos(ang)+uv.x*sin(ang))*1.6;
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smk += texture(WarpTex,uv2).x;
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uv.y += 4.*sr.y;
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ang = timer*.02;
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uv2 = vec2(uv.x*cos(ang)-uv.y*sin(ang),uv.y*cos(ang)+uv.x*sin(ang))*1.2;
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smk += texture(WarpTex,uv2).x;
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smk = pow(max(0.,smk*.25),4.);
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col += vec3(.8,1.,1.2)*smk*2.*str2;
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FragColor = vec4(col,1.);
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}
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