24 lines
466 B
GLSL
24 lines
466 B
GLSL
/*
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contributors: Inigo Quiles
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description: elongate operation of two SDFs
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use: <vec4> opElongate( in <vec3> p, in <vec3> h )
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*/
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#ifndef FNC_OPELONGATE
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#define FNC_OPELONGATE
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vec2 opElongate( in vec2 p, in vec2 h ) {
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return p-clamp(p,-h,h);
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}
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vec3 opElongate( in vec3 p, in vec3 h ) {
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return p-clamp(p,-h,h);
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}
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vec4 opElongate( in vec4 p, in vec4 h ) {
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vec3 q = abs(p)-h;
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return vec4( max(q,0.0), min(max(q.x,max(q.y,q.z)), 0.0) );
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}
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#endif
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