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spring function clarification

This commit is contained in:
Sam Hellawell 2024-05-10 17:57:11 +01:00
parent 340252007b
commit bce97f49b4

View File

@ -83,31 +83,32 @@ namespace MWRender
}
}
float springOutGeneric(float x, float lambda, float w)
float springOutGeneric(float x, float lambda)
{
// Higher lambda = lower swing amplitude. 1 = 150% swing amplitude.
// W corresponds to the amount of overswings, more = more. 4.71 = 1 overswing, 7.82 = 2
// w corresponds to the frequency of oscillation in the easing function, controlling the amount of overswing
constexpr float w = 1.5f * osg::PIf; // 4.71238
return 1 - expf(-lambda * x) * cos(w * x);
}
float springOutWeak(float x)
{
return springOutGeneric(x, 4, 4.71);
return springOutGeneric(x, 4);
}
float springOutMed(float x)
{
return springOutGeneric(x, 3, 4.71);
return springOutGeneric(x, 3);
}
float springOutStrong(float x)
{
return springOutGeneric(x, 2, 4.71);
return springOutGeneric(x, 2);
}
float springOutTooMuch(float x)
{
return springOutGeneric(x, 1, 4.71);
return springOutGeneric(x, 1);
}
const std::unordered_map<std::string, EasingFn> easingsMap = {