23 lines
1.5 KiB
Text
23 lines
1.5 KiB
Text
/*
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contributors: Johan Ismael
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description: Map a v between one range to another.
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use: <float|float2|float3|float4> map(<float|float2|float3|float4> v, <float|float2|float3|float4> inMin, <float|float2|float3|float4> inMax, <float|float2|float3|float4> outMin, <float|float2|float3|float4> outMax)
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examples:
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- https://raw.githubusercontent.com/patriciogonzalezvivo/lygia_examples/main/math_functions.frag
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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_MAP
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#define FNC_MAP
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float map(float v, float iMin, float iMax ) { return (v-iMin)/(iMax-iMin); }
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float2 map(float2 v, float2 iMin, float2 iMax ) { return (v-iMin)/(iMax-iMin); }
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float3 map(float3 v, float3 iMin, float3 iMax ) { return (v-iMin)/(iMax-iMin); }
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float4 map(float4 v, float4 iMin, float4 iMax ) { return (v-iMin)/(iMax-iMin); }
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float map(float v, float iMin, float iMax, float oMin, float oMax) { return oMin+ (oMax - oMin) * (v - iMin) / (iMax - iMin); }
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float2 map(float2 v, float2 iMin, float2 iMax, float2 oMin, float2 oMax) { return oMin+ (oMax - oMin) * (v - iMin) / (iMax - iMin); }
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float3 map(float3 v, float3 iMin, float3 iMax, float3 oMin, float3 oMax) { return oMin+ (oMax - oMin) * (v - iMin) / (iMax - iMin); }
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float4 map(float4 v, float4 iMin, float4 iMax, float4 oMin, float4 oMax) { return oMin+ (oMax - oMin) * (v - iMin) / (iMax - iMin); }
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#endif
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