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21 lines
502 B
Text
21 lines
502 B
Text
uniform sampler2D tex_def;
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uniform lowp sampler2D tex_lowp;
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uniform highp sampler2D tex_highp;
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varying lowp vec2 var_lowp;
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varying mediump vec2 var_mediump;
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void main()
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{
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lowp vec4 c1;
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c1 = texture2D (tex_def, var_lowp) * 2.0;
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lowp vec4 c2;
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c2 = texture2D (tex_def, var_mediump) * 2.0;
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lowp vec4 c3;
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c3 = texture2D (tex_highp, var_mediump) * 2.0;
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lowp vec4 c4;
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c4 = texture2D (tex_lowp, var_mediump) * 2.0;
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lowp vec4 a1;
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a1 = abs(var_lowp.xxxx);
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gl_FragColor = c1 + c2 + c3 + c4 + a1;
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}
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