12 lines
No EOL
611 B
WebGPU Shading Language
12 lines
No EOL
611 B
WebGPU Shading Language
/*
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contributors: Patricio Gonzalez Vivo
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description: fast approximation to pow()
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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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fn powFast(a: f32, b: f32) -> f32 { return a / ((1.0 - b) * a + b); }
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fn powFast2(a: vec2f, b: vec2f) -> vec2f { return a / ((1.0 - b) * a + b); }
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fn powFast3(a: vec3f, b: vec3f) -> vec3f { return a / ((1.0 - b) * a + b); }
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fn powFast4(a: vec4f, b: vec4f) -> vec4f { return a / ((1.0 - b) * a + b); } |