17 lines
No EOL
553 B
Text
17 lines
No EOL
553 B
Text
#include "../math/const.msl"
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/*
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contributors: Patricio Gonzalez Vivo
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description: 3D vector to equirect 2D projection
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use: <float2> xyz2equirect(<float2> d)
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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_XYZ2EQUIRECT
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#define FNC_XYZ2EQUIRECT
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float2 xyz2equirect(float3 d) {
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return float2(atan(d.z, d.x) + PI, acos(-d.y)) / float2(2.0 * PI, PI);
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}
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#endif |