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authorLaG1924 <12997935+LaG1924@users.noreply.github.com>2017-05-12 15:49:50 +0200
committerLaG1924 <12997935+LaG1924@users.noreply.github.com>2017-05-12 15:49:50 +0200
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tree4565935f06e369f4a84410b0c098958e07a750c7 /depedencies/include/glm/gtx/gradient_paint.inl
parent2017-05-10 (diff)
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Diffstat (limited to 'depedencies/include/glm/gtx/gradient_paint.inl')
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diff --git a/depedencies/include/glm/gtx/gradient_paint.inl b/depedencies/include/glm/gtx/gradient_paint.inl
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+/// @ref gtx_gradient_paint
+/// @file glm/gtx/gradient_paint.inl
+
+namespace glm
+{
+ template <typename T, precision P>
+ GLM_FUNC_QUALIFIER T radialGradient
+ (
+ tvec2<T, P> const & Center,
+ T const & Radius,
+ tvec2<T, P> const & Focal,
+ tvec2<T, P> const & Position
+ )
+ {
+ tvec2<T, P> F = Focal - Center;
+ tvec2<T, P> 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, precision P>
+ GLM_FUNC_QUALIFIER T linearGradient
+ (
+ tvec2<T, P> const & Point0,
+ tvec2<T, P> const & Point1,
+ tvec2<T, P> const & Position
+ )
+ {
+ tvec2<T, P> Dist = Point1 - Point0;
+ return (Dist.x * (Position.x - Point0.x) + Dist.y * (Position.y - Point0.y)) / glm::dot(Dist, Dist);
+ }
+}//namespace glm