23 lines
611 B
HLSL
23 lines
611 B
HLSL
#include "triSDF.hlsl"
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/*
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contributors: Patricio Gonzalez Vivo
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description: Returns a rhomb-shaped sdf
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use: rhombSDF(<float2> st)
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license:
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- Copyright (c) 2021 Patricio Gonzalez Vivo under Prosperity License - https://prosperitylicense.com/versions/3.0.0
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- Copyright (c) 2021 Patricio Gonzalez Vivo under Patron License - https://lygia.xyz/license
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*/
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#ifndef FNC_RHOMBSDF
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#define FNC_RHOMBSDF
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float rhombSDF(in float2 st) {
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float offset = 1.0;
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#ifdef CENTER_2D
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offset = CENTER_2D.y * 2.0;
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#endif
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return max(triSDF(st),
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triSDF(float2(st.x, offset-st.y)));
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}
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#endif
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