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authoruntodesu <kirill@untode.su>2025-03-15 16:22:09 +0500
committeruntodesu <kirill@untode.su>2025-03-15 16:22:09 +0500
commit3bf42c6ff3805a0d42bbc661794a95ff31bedc26 (patch)
tree05049955847504808d6bed2bb7b155f8b03807bb /deps/include/glm/gtx/gradient_paint.inl
parent02294547dcde0d4ad76e229106702261e9f10a51 (diff)
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Add whatever I was working on for the last month
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+/// @ref gtx_gradient_paint
+
+namespace glm
+{
+ template<typename T, qualifier Q>
+ GLM_FUNC_QUALIFIER T radialGradient
+ (
+ vec<2, T, Q> const& Center,
+ T const& Radius,
+ vec<2, T, Q> const& Focal,
+ vec<2, T, Q> const& Position
+ )
+ {
+ vec<2, T, Q> F = Focal - Center;
+ vec<2, T, Q> D = Position - Focal;
+ T Radius2 = pow2(Radius);
+ T Fx2 = pow2(F.x);
+ T Fy2 = pow2(F.y);
+
+ T Numerator = (D.x * F.x + D.y * F.y) + sqrt(Radius2 * (pow2(D.x) + pow2(D.y)) - pow2(D.x * F.y - D.y * F.x));
+ T Denominator = Radius2 - (Fx2 + Fy2);
+ return Numerator / Denominator;
+ }
+
+ template<typename T, qualifier Q>
+ GLM_FUNC_QUALIFIER T linearGradient
+ (
+ vec<2, T, Q> const& Point0,
+ vec<2, T, Q> const& Point1,
+ vec<2, T, Q> const& Position
+ )
+ {
+ vec<2, T, Q> Dist = Point1 - Point0;
+ return (Dist.x * (Position.x - Point0.x) + Dist.y * (Position.y - Point0.y)) / glm::dot(Dist, Dist);
+ }
+}//namespace glm