17 lines
No EOL
798 B
WebGPU Shading Language
17 lines
No EOL
798 B
WebGPU Shading Language
/*
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contributors: Patricio Gonzalez Vivo
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description: "Fix the aspect ratio of a space keeping things squared for you, \nin\
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\ a similar way that aspect.glsl does, but while scaling the \nspace to keep the\
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\ entire 0.0,0.0 ~ 1.0,1.0 range visible\n"
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examples:
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- https://raw.githubusercontent.com/patriciogonzalezvivo/lygia_examples/main/draw_shapes.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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fn ratio(st: vec2f, s: vec2f) -> vec2f {
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return mix( vec2f((st.x*s.x/s.y)-(s.x*.5-s.y*.5)/s.y,st.y),
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vec2f(st.x,st.y*(s.y/s.x)-(s.y*.5-s.x*.5)/s.x),
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step(s.x,s.y));
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} |