16 lines
348 B
Plaintext
16 lines
348 B
Plaintext
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precision mediump float;
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varying vec4 color;
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varying vec3 position;
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uniform vec4 lineParams;
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void main()
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{
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float a = lineParams.x;
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float b = lineParams.y;
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float c = lineParams.z;
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float distance = abs(a*position.x + b*position.y + c);
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gl_FragColor = vec4(color.rgb, color.a*clamp(1.2 / (distance + 1.0) - 0.5, 0.0, 1.0));
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}
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