19 lines
359 B
GLSL
Executable file
19 lines
359 B
GLSL
Executable file
#version 330
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out vec4 color;
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in vec2 apos;
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vec2 bpos;
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uniform int thickness;
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uniform int span;
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void main(void)
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{
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float t = thickness / 2.f;
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bpos.x = mod(apos.x, span);
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bpos.y = mod(apos.y, span);
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if (!(bpos.x <= t || bpos.x >= (span - t) || bpos.y <= t || bpos.y >= (span - t)))
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discard;
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color = vec4(0.4f, 0.7f, 0.2f, 0.3f);
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} |